The study investigated the effects of propolis on oxidative stress markers in the liver tissue of rats whose nitric oxide synthase was inhibited. Rats were given L-NAME, a nitric oxide synthase inhibitor, for 15 days to induce hypertension and oxidative stress. Some rats were also given an ethanol extract of propolis for the last 5 days. Results showed that L-NAME increased lipid peroxidation and decreased catalase activity and nitric oxide levels in the liver, indicating increased oxidative stress. However, administration of propolis suppressed these effects of L-NAME by reducing lipid peroxidation and increasing catalase activity and nitric oxide levels in the liver tissue. Thus, propolis has antioxidant properties that can protect against oxidative
Brazilian Red Propolis Attenuates Hypertension and Renal DamageBee Healthy Farms
Incorporating Brazilian Red Propolis in the diet of rats with reduced kidney function experienced a reduction of hypertension and renal damage. This scenario simulated Chronic Kidney Disease.and found the anti-inflammatory and antioxidant effects of Brazilian Red Propolis effective but requires additional studies to determine which mechanisms were prominent.
Protective effects of commelina benghalensis linn (root) extract on ethanol i...IJSIT Editor
The present study was undertaken to investigate the protective effect and possible mechanism of
alcoholic (AlE) and aqueous extract (AqE) from Commelina benghalensis root (CB) on EtOH-induced hepatic
injury in Wistar rat. Hepatotoxic parameters studied in vivo include serum transaminases (AST, and ALT),
ALP, bilirubin, protein, lipid profile (Cholesterol, triglyceride, VLDL and HDL) and level of antioxidants
together with histopathological examination. Liv 52® was used as a reference hepatoprotective agent
(5ml/kg-1b.w.). AlE and AqE (200 mg/kg-1b.w.) on oral administration decreased the level of AST, ALP, ALT,
bilirubin, cholesterol, triglyceride, VLDL, MDA and increased the level of protein, HDL and antioxidants (SOD,
GSH and CAT) in rats being treated with ethanol (EtOH). Pentobarbitone -induced sleeping time study was
carried out to verify the effect on microsomal enzymes Histopathological observations confirmed the
beneficial roles of MF against EtOH-induced liver injury in rats. Possible mechanism may involve their
antioxidant activity
Hepatoprotective Effect of Aqueous Extracts of Some Medicinal Plant Mixtures ...IOSRJPBS
The rhizomes of Ginger (Zingiberofficinale), Turmeric (Curcuma longa), Licorice (Glycyrrhizaglabra), the bark of Cinnamon tree,(Cinnamomumzeylanicum) and the calyces of red Roselle (Hibiscus sabdariffa L.)are herbs used in thishepatoprotective studies. This study evaluates the hepatoprotective activity of water extract mixtures using carbon tetrachloride (CCl4)-induced liver injury in rats.In vitroantioxidant activity of plant water extracts was determined using DPPH. The water extractmixtures wereadministered for 10 days; on the 10thday all rats were challenged with CCl4 except control group animals. Aspartate aminotransferase (AST), alanine aminotransferase (ALT), and albumin levels were determined to prove the hepatoprotectiveeffect.The enzyme activities were significantly increased in CCl4 treated rats. The four water extract mixtures exhibited significant (P<0.05)><0.05) increased in all the water extract mixtures used.
Hepatoprotective Activity of Chara Parpam in Ccl4 Induced RatsIOSR Journals
Siddha system of medicine provides most frequently and to the extent possible and promising therapy for the relief of signs and symptoms of liver disorder over the generations. Their high therapeutic quality and lack of toxicity are exceptional. The present experimental work was to evaluate the hepatoprotective properties of Siddha herbo-mineral formulation Chara Parpam by CCl4 induced hepatotoxicity in albino rats. Two doses of Chara Parpam (5 mg/kg and 10 mg/kg) were administered to rats. Protection of hepatocytes was evaluated by estimate the level of ALT, AST, ALP, serum bilirubin, total protein, serum albumin, sodium and potassium during the exposure of CCL4 on wistar albino rats and to evaluate the effect of different doses of Chara Parpam against hepatotoxicity induced by CCL4. Liver histology was performed 24 hours after the administration of trial drug Chara Parpam. The result indicated that the concentration of ALT, AST, and ALP, released by hepatocytes were significantly reduced in the presence of Chara Parpam. The cytoprotective effects of the Chara Parpam are dose-dependent. Through this work, we demonstrate for the first time the direct protection of liver cells by administration of Chara Parpam confirming its hepatoprotective properties.
Does allicin combined with vitamin B-complex have superior potentials than al...Prof. Hesham N. Mustafa
BACKGROUND:
The current article aims to explore the protective potentials of α-tocopherol alone and the combination of allicin and vitamin B-complex against lead-acetate neurotoxicity on the cerebellar cortex.
MATERIALS AND METHODS:
Forty rats were divided into four groups (n=10). Group 1 was the control group. Group 2 received 10 mg/kg body weight (BW) of lead acetate. Group 3 was exposed to 10 mg/kg BW of lead acetate plus a combination of allicin (100 mg/kg BW) and vit. B-complex (40 mg/kg BW). Group 4 was administered lead acetate (10 mg/kg BW) and α-tocopherol (100 mg/kg BW). The animals received treatment for sixty days by oral gavage. All the groups were studied ultrastructurally and immunohistochemically with glial fibrillary acidic protein (GFAP).
RESULTS:
The affected groups revealed shrunken and degenerated Purkinje cells with irregular nuclei. The cytoplasm comprised several lysosomes, unhealthy mitochondria, and dilated Golgi saccules. The myelinated nerve fibers demonstrated breaking of the myelin sheaths, apparent vacuoles, and broad axonal spaces. Immunohistochemically, there was a tremendous surge in GFAP-positive astrocytes in the lead acetate-treated group. These histological and ultrastructural variations were ameliorated by the administration of α-tocopherol and the combination of allicin and vit. B complex. Moreover, an apparent decrease in the number of GFAP-positive astrocytes was obvious in the protected groups.
CONCLUSIONS:
Although both α-tocopherol and the combination of allicin and vit. B-complex can be used as possible adjuvant therapies to ameliorate nervous system ailments attributable to lead acetate, α-tocopherol showed more protective potential.
KEYWORDS:
Allicin; Astrocytes; GFAP; Myelin Figure; Oligodendrocyte; Purkinje cells
Brazilian Red Propolis Attenuates Hypertension and Renal DamageBee Healthy Farms
Incorporating Brazilian Red Propolis in the diet of rats with reduced kidney function experienced a reduction of hypertension and renal damage. This scenario simulated Chronic Kidney Disease.and found the anti-inflammatory and antioxidant effects of Brazilian Red Propolis effective but requires additional studies to determine which mechanisms were prominent.
Protective effects of commelina benghalensis linn (root) extract on ethanol i...IJSIT Editor
The present study was undertaken to investigate the protective effect and possible mechanism of
alcoholic (AlE) and aqueous extract (AqE) from Commelina benghalensis root (CB) on EtOH-induced hepatic
injury in Wistar rat. Hepatotoxic parameters studied in vivo include serum transaminases (AST, and ALT),
ALP, bilirubin, protein, lipid profile (Cholesterol, triglyceride, VLDL and HDL) and level of antioxidants
together with histopathological examination. Liv 52® was used as a reference hepatoprotective agent
(5ml/kg-1b.w.). AlE and AqE (200 mg/kg-1b.w.) on oral administration decreased the level of AST, ALP, ALT,
bilirubin, cholesterol, triglyceride, VLDL, MDA and increased the level of protein, HDL and antioxidants (SOD,
GSH and CAT) in rats being treated with ethanol (EtOH). Pentobarbitone -induced sleeping time study was
carried out to verify the effect on microsomal enzymes Histopathological observations confirmed the
beneficial roles of MF against EtOH-induced liver injury in rats. Possible mechanism may involve their
antioxidant activity
Hepatoprotective Effect of Aqueous Extracts of Some Medicinal Plant Mixtures ...IOSRJPBS
The rhizomes of Ginger (Zingiberofficinale), Turmeric (Curcuma longa), Licorice (Glycyrrhizaglabra), the bark of Cinnamon tree,(Cinnamomumzeylanicum) and the calyces of red Roselle (Hibiscus sabdariffa L.)are herbs used in thishepatoprotective studies. This study evaluates the hepatoprotective activity of water extract mixtures using carbon tetrachloride (CCl4)-induced liver injury in rats.In vitroantioxidant activity of plant water extracts was determined using DPPH. The water extractmixtures wereadministered for 10 days; on the 10thday all rats were challenged with CCl4 except control group animals. Aspartate aminotransferase (AST), alanine aminotransferase (ALT), and albumin levels were determined to prove the hepatoprotectiveeffect.The enzyme activities were significantly increased in CCl4 treated rats. The four water extract mixtures exhibited significant (P<0.05)><0.05) increased in all the water extract mixtures used.
Hepatoprotective Activity of Chara Parpam in Ccl4 Induced RatsIOSR Journals
Siddha system of medicine provides most frequently and to the extent possible and promising therapy for the relief of signs and symptoms of liver disorder over the generations. Their high therapeutic quality and lack of toxicity are exceptional. The present experimental work was to evaluate the hepatoprotective properties of Siddha herbo-mineral formulation Chara Parpam by CCl4 induced hepatotoxicity in albino rats. Two doses of Chara Parpam (5 mg/kg and 10 mg/kg) were administered to rats. Protection of hepatocytes was evaluated by estimate the level of ALT, AST, ALP, serum bilirubin, total protein, serum albumin, sodium and potassium during the exposure of CCL4 on wistar albino rats and to evaluate the effect of different doses of Chara Parpam against hepatotoxicity induced by CCL4. Liver histology was performed 24 hours after the administration of trial drug Chara Parpam. The result indicated that the concentration of ALT, AST, and ALP, released by hepatocytes were significantly reduced in the presence of Chara Parpam. The cytoprotective effects of the Chara Parpam are dose-dependent. Through this work, we demonstrate for the first time the direct protection of liver cells by administration of Chara Parpam confirming its hepatoprotective properties.
Does allicin combined with vitamin B-complex have superior potentials than al...Prof. Hesham N. Mustafa
BACKGROUND:
The current article aims to explore the protective potentials of α-tocopherol alone and the combination of allicin and vitamin B-complex against lead-acetate neurotoxicity on the cerebellar cortex.
MATERIALS AND METHODS:
Forty rats were divided into four groups (n=10). Group 1 was the control group. Group 2 received 10 mg/kg body weight (BW) of lead acetate. Group 3 was exposed to 10 mg/kg BW of lead acetate plus a combination of allicin (100 mg/kg BW) and vit. B-complex (40 mg/kg BW). Group 4 was administered lead acetate (10 mg/kg BW) and α-tocopherol (100 mg/kg BW). The animals received treatment for sixty days by oral gavage. All the groups were studied ultrastructurally and immunohistochemically with glial fibrillary acidic protein (GFAP).
RESULTS:
The affected groups revealed shrunken and degenerated Purkinje cells with irregular nuclei. The cytoplasm comprised several lysosomes, unhealthy mitochondria, and dilated Golgi saccules. The myelinated nerve fibers demonstrated breaking of the myelin sheaths, apparent vacuoles, and broad axonal spaces. Immunohistochemically, there was a tremendous surge in GFAP-positive astrocytes in the lead acetate-treated group. These histological and ultrastructural variations were ameliorated by the administration of α-tocopherol and the combination of allicin and vit. B complex. Moreover, an apparent decrease in the number of GFAP-positive astrocytes was obvious in the protected groups.
CONCLUSIONS:
Although both α-tocopherol and the combination of allicin and vit. B-complex can be used as possible adjuvant therapies to ameliorate nervous system ailments attributable to lead acetate, α-tocopherol showed more protective potential.
KEYWORDS:
Allicin; Astrocytes; GFAP; Myelin Figure; Oligodendrocyte; Purkinje cells
Hyperoxaluria Induces Oxidative DNA Damage and Results in Renal Tubular Epithelial Cell Apoptosis: A Clue to the Pathogenesis of Urolithiasis by Hasan Aydin in Experimental Techniques in Urology & Nephrology
The Effect Of Roselle Extract (Hibiscus Sabdariffa Linn.) On Blood Glucose ...iosrphr_editor
The IOSR Journal of Pharmacy (IOSRPHR) is an open access online & offline peer reviewed international journal, which publishes innovative research papers, reviews, mini-reviews, short communications and notes dealing with Pharmaceutical Sciences( Pharmaceutical Technology, Pharmaceutics, Biopharmaceutics, Pharmacokinetics, Pharmaceutical/Medicinal Chemistry, Computational Chemistry and Molecular Drug Design, Pharmacognosy & Phytochemistry, Pharmacology, Pharmaceutical Analysis, Pharmacy Practice, Clinical and Hospital Pharmacy, Cell Biology, Genomics and Proteomics, Pharmacogenomics, Bioinformatics and Biotechnology of Pharmaceutical Interest........more details on Aim & Scope).
Comparative Study of The Antioxidant Activities of Monodora Myristica And A. ...iosrjce
IOSR Journal of Biotechnology and Biochemistry (IOSR-JBB) covers studies of the chemical processes in living organisms, structure and function of cellular components such as proteins, carbohydrates, lipids, nucleic acids and other biomolecules, chemical properties of important biological molecules, like proteins, in particular the chemistry of enzyme-catalyzed reactions, genetic code (DNA, RNA), protein synthesis, cell membrane transport, and signal transduction. IOSR-JBB is privileged to focus on a wide range of biotechnology as well as high quality articles on genetic engineering, cell and tissue culture technologies, genetics, microbiology, molecular biology, biochemistry, embryology, cell biology, chemical engineering, bioprocess engineering, information technology, biorobotics.
ABSTRACT- The anticancer drug arsenic trioxide is effective for acute promyelocytic leukemia. But the clinical trials are
restricted due to its potential side effects. Since the major part of arsenic metabolism and detoxification occurs in liver,
this organ faces the major threat. The hepatic side effects include fatty liver, fibrosis, and inflammation and hepatocyte
degeneration. Our study aimed to evaluate the protective potential of the fatty acid, docosahexaenoic acid, against adversities
of arsenic trioxide in an in vitro model, the Chang liver cells. Two preliminary dose standardization assays, cell
viability and lactate dehydrogenase release assays, were employed. The assays were performed as Pre-treatment,
Co-treatment and Post treatment experiments for a period of 24 hours. Arsenic trioxide at various doses (2.5, 5, 7.5, 10,
12.5 and 15 μM) showed a significant (p≤0.05) dose dependant reduction in cell viability along with a dose dependant
enhancement of lactate dehydrogenase release. However when the cells were treated with a combination of docosahexaenoic
acid at varying concentrations (50, 75, 100, 125 and 150 μM), the above mentioned conditions were found to be
reversed in Pre-treatment and Co-treatment experiments, but not in Post treatment. The most effective combination was
found to be 10 μM arsenic trioxide with 100 μM of docosahexaenoic acid in both Pre-treatment and Co- treatment studies.
Thus the preliminary assays of our study showed that docosahexaenoic acid administration as Pre-treatment or
Co-treatment can aid in reducing arsenic trioxide induced hepatotoxicity. Further studies are required to elucidate the mechanisms
behind the protective effects.
Key Words– Arsenic trioxide, hepatotoxicity, docosahexaenoic acid, cell damage
International Journal of Engineering and Science Invention (IJESI)inventionjournals
International Journal of Engineering and Science Invention (IJESI) is an international journal intended for professionals and researchers in all fields of computer science and electronics. IJESI publishes research articles and reviews within the whole field Engineering Science and Technology, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online.
Whey protein products and their combination with L-methionine prevent liver f...iosrphr_editor
The IOSR Journal of Pharmacy (IOSRPHR) is an open access online & offline peer reviewed international journal, which publishes innovative research papers, reviews, mini-reviews, short communications and notes dealing with Pharmaceutical Sciences( Pharmaceutical Technology, Pharmaceutics, Biopharmaceutics, Pharmacokinetics, Pharmaceutical/Medicinal Chemistry, Computational Chemistry and Molecular Drug Design, Pharmacognosy & Phytochemistry, Pharmacology, Pharmaceutical Analysis, Pharmacy Practice, Clinical and Hospital Pharmacy, Cell Biology, Genomics and Proteomics, Pharmacogenomics, Bioinformatics and Biotechnology of Pharmaceutical Interest........more details on Aim & Scope).
Effect of astaxanthin on ethylene glycol induced nephrolithiasisIOSR Journals
Nephrolithiasis is one of the most common and painful of urological disorders with a high prevalence rate. The role of calcium oxalate crystals, which are the predominant component of kidney stones in generating oxidative stress, have been clearly demonstrated in previous studies. Astaxanthin, found in marine organisms is a dietary xanthophyll carotenoid with enhanced antioxidative properties and pharmacological effects. In the present study, we have investigated the effect of this natural antioxidant, at a daily dose of 25mg/kg in experimental calcium oxalate nephrolithiasis in male Wistar rats. Liver function markers, hepatic antioxidants, albumin creatinine ratios, renal calcium content and changes in body and kidney weight have been studied to evaluate the effect of this carotenoid in vivo. The effect of citrate, a component of most pharmaceutical drugs for management of nephrolithiasis has also been evaluated for the purpose of comparison with astaxanthin treatment. Astaxanthin is seen to exert a protective effect on the liver and kidney tissues in ethylene glycol treated rats by improving the liver function, restoring the activity of the hepatic antioxidant enzymes, decreasing the albumin creatinine ratios and calcium levels and maintaining the organ to body weight ratio. Our results also indicate that astaxanthin administration is more beneficial than citrate treatment
Background: Dennentia tripetalla (Pepper Fruit) belongs to the Annonaceae family and is abundant in Nigeria. Its
fruit in folklore medicine is used for treatment of varying ailments. While ample research evidence exists on the
plants fruit and seed, no current study exists on the toxicological profile of the plant leaves.
Methods: qualitative and quantitative phytochemicals and In vitro antioxidant assays were carried out using
standard methods. The acute toxicity study indicates that the LD50 was higher than 2000 mg/Kg body weight. Subchronic
toxicity studies was carried out using five groups of rats. Group 1 served as control, 2–5 received 100 mg/
Kg, 200 mg/Kg, 500 mg/Kg and 1000 mg/Kg body weight orally for 28 days.
Results: Post-administration biochemical analysis indicates there was increased weight in rats administered 100
mg/kg and 200 mg/kg while it reduced in the 500 mg/kg group. Significant elevations of liver function markers
were reported for 200 mg/kg and 500 mg/kg respectively. Serum and hepatic protein profiles remained unaltered.
Renal function analysis revealed elevated serum urea and creatinine for 200 and 500 mg/kg groups, elevated serum
Na+ and Ca+ and reduced serum Cl− for the 500 mg/Kg group. Elevated Kidney K+ and Ca+ levels, reduced Cl−
were significantly observed in 500 mg/Kg group. Significant rise in hepatic and renal lipid peroxidation was
observed in 200 and 500 mg/Kg groups. There were observed disarmament of the antioxidant defense systems
occasioned by rise and drop in tissue (hepatic, renal, testes, heart) Superoxide dismutase (SOD), Catalase (Cat),
Glutathione-s-transferase (GST), Glutathione peroxidase (GPx) activities in the test groups relative to control.
Histopathological examination indicated architectural aberrations at 500 and 1000 mg/kg.
Conclusions: It concluded that the plant had significant phytochemical and antioxidant properties of medical
interest and possessed toxic properties in rats when administered at a dose above 200 mg/Kg over a prolonged
period of time.
Background: The present study sought to investigate erythrocyte glutathione S-transferases (GST),
NADH-Methaemoglobin reductase (NADH-MR) and Na+/K+-ATPase activities of hypoglycemic rats treated with
ethanol/water (1:2 v/v) extract of A. sativa as agent of glycemic control.
Methods: Hyperglycemia was induced by a single intra-peritoneal injection of 0.1 mol/L alloxan monohydrate in
phosphate buffer saline (PBS) solution (pH = 7.4); dosage = 140 mg/kg. At the end of the experimental time
(t = 76 h), erythrocyte GST, NADH-MR and Na+/K+-ATPase activities as well as serum fasting blood sugar (FBS)
levels were measured by spectrophotometric methods.
Results: Serum FBS levels of control/normal (C/N) rats ranged between 72.93 ± 0.82–95.12 ± 0.92 mg/dL, whereas
experimental rats without glycemic control gave: 249.41 ± 1.03–256.11 ± 1.23 mg/dL. Hyperglycemic rats treated
with ethanol/water (1:2 v/v) extract of A. sativa exhibited comparative reduced serum levels of FBS alongside with
erythrocyte GST, NADH-MR and Na+/K+-ATPase activities. The average relative activities of the three enzymes and
corresponding order of enzyme activity in hyperglycemic rats treated with ethanol/water (1:2 v/v) extract of A. sativa
was: NADH-MR = 60.99% > GST = 47.81% > Na+/K+-ATPase = 46.81%. In the same order, relative activities of the three
enzymes in rats without glycemic control were: NADH-MR = 49.65% > GST = 23.69% > Na+/K+-ATPase = 17.02%.
Conclusion: Erythrocyte GST, NADH-MR and Na+/K+-ATPase activities gave insights into the pathophysiology of
diabetic state and served as biomarkers for ascertaining therapeutic control in Type 1 diabetes mellitus.
Natural resin association with incense and propolis in zootechnologyBee Healthy Farms
Incense and propolis have common origins and composition. Though their content may differ - terpenes are prevalent in incense; flavanoids, aromatic acids and esters in propolis - their use for the treatment of human and animal diseases has been well-known since the earliest times.
On the basis of this preliminary data, we conclude that propolis and incense can be employed in zootechnology, to sanitise the closed environments of breeding farms.
Ethiopian Propolis - Characteristics and Chemical CompositionBee Healthy Farms
Propolis is a sticky material mixed by honeybees to utilize it in protecting their hives from infection by bacteria and fungi. The therapeutic properties of propolis are due to its chemical composition with bio-active compounds. These propolis samples indicate that they are potential sources of natural bio-active compounds for biological and pharmacological applications. A unique compound was discovered which hasn't been found in other global studies of propolis.
Hyperoxaluria Induces Oxidative DNA Damage and Results in Renal Tubular Epithelial Cell Apoptosis: A Clue to the Pathogenesis of Urolithiasis by Hasan Aydin in Experimental Techniques in Urology & Nephrology
The Effect Of Roselle Extract (Hibiscus Sabdariffa Linn.) On Blood Glucose ...iosrphr_editor
The IOSR Journal of Pharmacy (IOSRPHR) is an open access online & offline peer reviewed international journal, which publishes innovative research papers, reviews, mini-reviews, short communications and notes dealing with Pharmaceutical Sciences( Pharmaceutical Technology, Pharmaceutics, Biopharmaceutics, Pharmacokinetics, Pharmaceutical/Medicinal Chemistry, Computational Chemistry and Molecular Drug Design, Pharmacognosy & Phytochemistry, Pharmacology, Pharmaceutical Analysis, Pharmacy Practice, Clinical and Hospital Pharmacy, Cell Biology, Genomics and Proteomics, Pharmacogenomics, Bioinformatics and Biotechnology of Pharmaceutical Interest........more details on Aim & Scope).
Comparative Study of The Antioxidant Activities of Monodora Myristica And A. ...iosrjce
IOSR Journal of Biotechnology and Biochemistry (IOSR-JBB) covers studies of the chemical processes in living organisms, structure and function of cellular components such as proteins, carbohydrates, lipids, nucleic acids and other biomolecules, chemical properties of important biological molecules, like proteins, in particular the chemistry of enzyme-catalyzed reactions, genetic code (DNA, RNA), protein synthesis, cell membrane transport, and signal transduction. IOSR-JBB is privileged to focus on a wide range of biotechnology as well as high quality articles on genetic engineering, cell and tissue culture technologies, genetics, microbiology, molecular biology, biochemistry, embryology, cell biology, chemical engineering, bioprocess engineering, information technology, biorobotics.
ABSTRACT- The anticancer drug arsenic trioxide is effective for acute promyelocytic leukemia. But the clinical trials are
restricted due to its potential side effects. Since the major part of arsenic metabolism and detoxification occurs in liver,
this organ faces the major threat. The hepatic side effects include fatty liver, fibrosis, and inflammation and hepatocyte
degeneration. Our study aimed to evaluate the protective potential of the fatty acid, docosahexaenoic acid, against adversities
of arsenic trioxide in an in vitro model, the Chang liver cells. Two preliminary dose standardization assays, cell
viability and lactate dehydrogenase release assays, were employed. The assays were performed as Pre-treatment,
Co-treatment and Post treatment experiments for a period of 24 hours. Arsenic trioxide at various doses (2.5, 5, 7.5, 10,
12.5 and 15 μM) showed a significant (p≤0.05) dose dependant reduction in cell viability along with a dose dependant
enhancement of lactate dehydrogenase release. However when the cells were treated with a combination of docosahexaenoic
acid at varying concentrations (50, 75, 100, 125 and 150 μM), the above mentioned conditions were found to be
reversed in Pre-treatment and Co-treatment experiments, but not in Post treatment. The most effective combination was
found to be 10 μM arsenic trioxide with 100 μM of docosahexaenoic acid in both Pre-treatment and Co- treatment studies.
Thus the preliminary assays of our study showed that docosahexaenoic acid administration as Pre-treatment or
Co-treatment can aid in reducing arsenic trioxide induced hepatotoxicity. Further studies are required to elucidate the mechanisms
behind the protective effects.
Key Words– Arsenic trioxide, hepatotoxicity, docosahexaenoic acid, cell damage
International Journal of Engineering and Science Invention (IJESI)inventionjournals
International Journal of Engineering and Science Invention (IJESI) is an international journal intended for professionals and researchers in all fields of computer science and electronics. IJESI publishes research articles and reviews within the whole field Engineering Science and Technology, new teaching methods, assessment, validation and the impact of new technologies and it will continue to provide information on the latest trends and developments in this ever-expanding subject. The publications of papers are selected through double peer reviewed to ensure originality, relevance, and readability. The articles published in our journal can be accessed online.
Whey protein products and their combination with L-methionine prevent liver f...iosrphr_editor
The IOSR Journal of Pharmacy (IOSRPHR) is an open access online & offline peer reviewed international journal, which publishes innovative research papers, reviews, mini-reviews, short communications and notes dealing with Pharmaceutical Sciences( Pharmaceutical Technology, Pharmaceutics, Biopharmaceutics, Pharmacokinetics, Pharmaceutical/Medicinal Chemistry, Computational Chemistry and Molecular Drug Design, Pharmacognosy & Phytochemistry, Pharmacology, Pharmaceutical Analysis, Pharmacy Practice, Clinical and Hospital Pharmacy, Cell Biology, Genomics and Proteomics, Pharmacogenomics, Bioinformatics and Biotechnology of Pharmaceutical Interest........more details on Aim & Scope).
Effect of astaxanthin on ethylene glycol induced nephrolithiasisIOSR Journals
Nephrolithiasis is one of the most common and painful of urological disorders with a high prevalence rate. The role of calcium oxalate crystals, which are the predominant component of kidney stones in generating oxidative stress, have been clearly demonstrated in previous studies. Astaxanthin, found in marine organisms is a dietary xanthophyll carotenoid with enhanced antioxidative properties and pharmacological effects. In the present study, we have investigated the effect of this natural antioxidant, at a daily dose of 25mg/kg in experimental calcium oxalate nephrolithiasis in male Wistar rats. Liver function markers, hepatic antioxidants, albumin creatinine ratios, renal calcium content and changes in body and kidney weight have been studied to evaluate the effect of this carotenoid in vivo. The effect of citrate, a component of most pharmaceutical drugs for management of nephrolithiasis has also been evaluated for the purpose of comparison with astaxanthin treatment. Astaxanthin is seen to exert a protective effect on the liver and kidney tissues in ethylene glycol treated rats by improving the liver function, restoring the activity of the hepatic antioxidant enzymes, decreasing the albumin creatinine ratios and calcium levels and maintaining the organ to body weight ratio. Our results also indicate that astaxanthin administration is more beneficial than citrate treatment
Background: Dennentia tripetalla (Pepper Fruit) belongs to the Annonaceae family and is abundant in Nigeria. Its
fruit in folklore medicine is used for treatment of varying ailments. While ample research evidence exists on the
plants fruit and seed, no current study exists on the toxicological profile of the plant leaves.
Methods: qualitative and quantitative phytochemicals and In vitro antioxidant assays were carried out using
standard methods. The acute toxicity study indicates that the LD50 was higher than 2000 mg/Kg body weight. Subchronic
toxicity studies was carried out using five groups of rats. Group 1 served as control, 2–5 received 100 mg/
Kg, 200 mg/Kg, 500 mg/Kg and 1000 mg/Kg body weight orally for 28 days.
Results: Post-administration biochemical analysis indicates there was increased weight in rats administered 100
mg/kg and 200 mg/kg while it reduced in the 500 mg/kg group. Significant elevations of liver function markers
were reported for 200 mg/kg and 500 mg/kg respectively. Serum and hepatic protein profiles remained unaltered.
Renal function analysis revealed elevated serum urea and creatinine for 200 and 500 mg/kg groups, elevated serum
Na+ and Ca+ and reduced serum Cl− for the 500 mg/Kg group. Elevated Kidney K+ and Ca+ levels, reduced Cl−
were significantly observed in 500 mg/Kg group. Significant rise in hepatic and renal lipid peroxidation was
observed in 200 and 500 mg/Kg groups. There were observed disarmament of the antioxidant defense systems
occasioned by rise and drop in tissue (hepatic, renal, testes, heart) Superoxide dismutase (SOD), Catalase (Cat),
Glutathione-s-transferase (GST), Glutathione peroxidase (GPx) activities in the test groups relative to control.
Histopathological examination indicated architectural aberrations at 500 and 1000 mg/kg.
Conclusions: It concluded that the plant had significant phytochemical and antioxidant properties of medical
interest and possessed toxic properties in rats when administered at a dose above 200 mg/Kg over a prolonged
period of time.
Background: The present study sought to investigate erythrocyte glutathione S-transferases (GST),
NADH-Methaemoglobin reductase (NADH-MR) and Na+/K+-ATPase activities of hypoglycemic rats treated with
ethanol/water (1:2 v/v) extract of A. sativa as agent of glycemic control.
Methods: Hyperglycemia was induced by a single intra-peritoneal injection of 0.1 mol/L alloxan monohydrate in
phosphate buffer saline (PBS) solution (pH = 7.4); dosage = 140 mg/kg. At the end of the experimental time
(t = 76 h), erythrocyte GST, NADH-MR and Na+/K+-ATPase activities as well as serum fasting blood sugar (FBS)
levels were measured by spectrophotometric methods.
Results: Serum FBS levels of control/normal (C/N) rats ranged between 72.93 ± 0.82–95.12 ± 0.92 mg/dL, whereas
experimental rats without glycemic control gave: 249.41 ± 1.03–256.11 ± 1.23 mg/dL. Hyperglycemic rats treated
with ethanol/water (1:2 v/v) extract of A. sativa exhibited comparative reduced serum levels of FBS alongside with
erythrocyte GST, NADH-MR and Na+/K+-ATPase activities. The average relative activities of the three enzymes and
corresponding order of enzyme activity in hyperglycemic rats treated with ethanol/water (1:2 v/v) extract of A. sativa
was: NADH-MR = 60.99% > GST = 47.81% > Na+/K+-ATPase = 46.81%. In the same order, relative activities of the three
enzymes in rats without glycemic control were: NADH-MR = 49.65% > GST = 23.69% > Na+/K+-ATPase = 17.02%.
Conclusion: Erythrocyte GST, NADH-MR and Na+/K+-ATPase activities gave insights into the pathophysiology of
diabetic state and served as biomarkers for ascertaining therapeutic control in Type 1 diabetes mellitus.
Natural resin association with incense and propolis in zootechnologyBee Healthy Farms
Incense and propolis have common origins and composition. Though their content may differ - terpenes are prevalent in incense; flavanoids, aromatic acids and esters in propolis - their use for the treatment of human and animal diseases has been well-known since the earliest times.
On the basis of this preliminary data, we conclude that propolis and incense can be employed in zootechnology, to sanitise the closed environments of breeding farms.
Ethiopian Propolis - Characteristics and Chemical CompositionBee Healthy Farms
Propolis is a sticky material mixed by honeybees to utilize it in protecting their hives from infection by bacteria and fungi. The therapeutic properties of propolis are due to its chemical composition with bio-active compounds. These propolis samples indicate that they are potential sources of natural bio-active compounds for biological and pharmacological applications. A unique compound was discovered which hasn't been found in other global studies of propolis.
Antiplaque efficacy of propolis based herbal toothpaste-a crossover clinical ...Bee Healthy Farms
This Dental School crossover clinical study found propolis toothpaste to be safe and effective in reducing plaque accumulation when compared to Miswak and Colgate total toothpaste.
Propolis in the field of dentistry is tough. It responds very well when in contact with mucous linings of the body. This super antioxidant also delivers antimicrobial, antifungal and antiseptic properties which make it very adaptable to numerous conditions found out of balance.
Propolis - The Natural Antibiotic against MRSA, Candida, and MoreBee Healthy Farms
Propolis is made from the resins of trees and other plants, gathered by honey bees and instinctively chosen for the active components contained within. They then modify it by adding enzymes and beeswax for use within the hive. Extensive research worldwide has found that these rich components of flavonoids, polyphenols and vitamins provide antifungal, antibacterial and antiviral properties.
A review of anti-tumor effects of propolis on cancer. It summarizes the results of studies on the mechanism of activity of propolis and its active compounds such as
CAPE and chrysin in the apoptotic process, and their influence on the proliferation of cancer cells.
The MTT assay and the MTS assay are colorimetric assays for measuring the activity of enzymes that reduce MTT or close dyes (XTT, MTS, WSTs) to formazan dyes, giving a purple color The main application allows to assess the viability (cell counting) and the proliferation of cells (cell culture assays)
It can also be used to determine cytotoxicity of potential medicinal agents and toxic materials, since those agents would stimulate or inhibit cell viability and growth
The IOSR Journal of Pharmacy (IOSRPHR) is an open access online & offline peer reviewed international journal, which publishes innovative research papers, reviews, mini-reviews, short communications and notes dealing with Pharmaceutical Sciences( Pharmaceutical Technology, Pharmaceutics, Biopharmaceutics, Pharmacokinetics, Pharmaceutical/Medicinal Chemistry, Computational Chemistry and Molecular Drug Design, Pharmacognosy & Phytochemistry, Pharmacology, Pharmaceutical Analysis, Pharmacy Practice, Clinical and Hospital Pharmacy, Cell Biology, Genomics and Proteomics, Pharmacogenomics, Bioinformatics and Biotechnology of Pharmaceutical Interest........more details on Aim & Scope).
All manuscripts are subject to rapid peer review. Those of high quality (not previously published and not under consideration for publication in another journal) will be published without delay.
The IOSR Journal of Pharmacy (IOSRPHR) is an open access online & offline peer reviewed international journal, which publishes innovative research papers, reviews, mini-reviews, short communications and notes dealing with Pharmaceutical Sciences( Pharmaceutical Technology, Pharmaceutics, Biopharmaceutics, Pharmacokinetics, Pharmaceutical/Medicinal Chemistry, Computational Chemistry and Molecular Drug Design, Pharmacognosy & Phytochemistry, Pharmacology, Pharmaceutical Analysis, Pharmacy Practice, Clinical and Hospital Pharmacy, Cell Biology, Genomics and Proteomics, Pharmacogenomics, Bioinformatics and Biotechnology of Pharmaceutical Interest........more details on Aim & Scope).
All manuscripts are subject to rapid peer review. Those of high quality (not previously published and not under consideration for publication in another journal) will be published without delay.
The IOSR Journal of Pharmacy (IOSRPHR) is an open access online & offline peer reviewed international journal, which publishes innovative research papers, reviews, mini-reviews, short communications and notes dealing with Pharmaceutical Sciences( Pharmaceutical Technology, Pharmaceutics, Biopharmaceutics, Pharmacokinetics, Pharmaceutical/Medicinal Chemistry, Computational Chemistry and Molecular Drug Design, Pharmacognosy & Phytochemistry, Pharmacology, Pharmaceutical Analysis, Pharmacy Practice, Clinical and Hospital Pharmacy, Cell Biology, Genomics and Proteomics, Pharmacogenomics, Bioinformatics and Biotechnology of Pharmaceutical Interest........more details on Aim & Scope).
All manuscripts are subject to rapid peer review. Those of high quality (not previously published and not under consideration for publication in another journal) will be published without delay.
Protective Effects of Alpha Lipoic Acid (α -LA) Against Lead Neuro-Toxicity i...inventionjournals
Aim of the work: The present study was conducted to elucidate the possible protective effect of alpha lipoic acid (α-LA) against the deleterious effect perturbation induced in rat brain exposed to lead acetate. Methods: 32 Wistar male rats (weighing 130 ± 10 g) were divided into four groups (n=8): (1) normal control group (C); (2) Initiation group (Pb as lead acetate 20 mg/kg.b.wt, i.p. for 2 wks); (3) treatment group (α-LA 20 mg/kg.b.wt, i.p. for 3 wks); (4) post-initiation treatment group (Pb for 2 wks then followed by α-LA for 3 wks). Levels of monoamines (norepinephrine NE and dopamine DA), the level of Ache activity and finally adenosine triphosphate (ATP), were estimated in the hippocampus and cerebral cortex, in addition, a Morris water maze and the histological study were performed after completion of the experiments. Results: The results of the present work demonstrated that Pb inhibited neurotransmitters releases and decrease the level of Ache activity, as well as it inhibited energy production ATP. Pb impaired performance on Morris Water Maze of rats and histological degeneration. However, treatment with α-LA significantly attenuated the behavioral impairment and biochemical parameters in rat treated with Pb. And amelioration of histological changes. Conclusion: As a conclusion, treatment with α-LA can improve the Pb-induced toxicity via antioxidant activity.
Protective Effects of Alpha Lipoic Acid (Α-LA) Against Lead Neuro-Toxicity in...inventionjournals
Aim of the work: The present study was conducted to elucidate the possible protective effect of alpha lipoic acid (α-LA) against the deleterious effect perturbation induced in rat brain exposed to lead acetate. Methods: 32 Wistar male rats (weighing 130 ± 10 g) were divided into four groups (n=8): (1) normal control group (C); (2) Initiation group (Pb as lead acetate 20 mg/kg.b.wt, i.p. for 2 wks); (3) treatment group (α-LA 20 mg/kg.b.wt, i.p. for 3 wks); (4) post-initiation treatment group (Pb for 2 wks then followed by α-LA for 3 wks). Levels of monoamines (norepinephrine NE and dopamine DA), the level of Ache activity and finally adenosine triphosphate (ATP), were estimated in the hippocampus and cerebral cortex, in addition, a Morris water maze and the histological study were performed after completion of the experiments. Results: The results of the present work demonstrated that Pb inhibited neurotransmitters releases and decrease the level of Ache activity, as well as it inhibited energy production ATP. Pb impaired performance on Morris Water Maze of rats and histological degeneration. However, treatment with α-LA significantly attenuated the behavioral impairment and biochemical parameters in rat treated with Pb. And amelioration of histological changes. Conclusion: As a conclusion, treatment with α-LA can improve the Pb-induced toxicity via antioxidant activity.
IOSR Journal of Pharmacy (IOSRPHR), www.iosrphr.org, call for paper, research...iosrphr_editor
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Abstract
Objective(s):
Zinc oxide nanoparticles (ZNP) are increasingly used in sunscreens, biosensors, food additives and pigments. In this study the effects of ZNP on liver of rats was investigated.
Materials and Methods:
Experimental groups received 5, 50 and 300 mg/kg ZNP respectively for 14 days. Control group received only distilled water. ALT, AST and ALP were considered as biomarkers to indicate hepatotoxicity. Lipid peroxidation (MDA), SOD and GPx were detected for assessment of oxidative stress in liver tissue. Histological studies and TUNEL assay were also done.
Results:
Plasma concentration of zinc (Zn) was significantly increased in 5 mg/kg ZNP-treated rats. Liver concentration of Zn was significantly increased in the 300 mg/kg ZNP-treated animals. Weight of liver was markedly increased in both 5 and 300 mg/kg doses of ZNP. ZNP at the doses of 5 mg/kg induced a significant increase in oxidative stress through the increase in MDA content and a significant decrease in SOD and GPx enzymes activity in the liver tissue. Administration of ZNP at 5 mg/kg induced a significant elevation in plasma AST, ALT and ALP. Histological studies showed that treatment with 5 mg/kg of ZNP caused hepatocytes swelling, which was accompanied by congestion of RBC and accumulation of inflammatory cells. Apoptotic index was also significantly increased in this group. ZNP at the dose of 300 mg/kg had poor hepatotoxicity effect.
Conclusion:
It is concluded that lower doses of ZNP has more hepatotoxic effects on rats, and recommended to use it with caution if there is a hepatological problem.
Hepatoprotective Effect of Cestrum parqui L. aerial parts and Phytochemical ...Jing Zang
This study deals with the investigation of hepatoprotective effect of 70% methanolic extract from Cestrum parqui aerial parts and determination of the bioactive components of the plant. The hepatoprotective effect of Cestrum parqui methanol extract (100, 500, 1000 mg/kg) was analysed on carbon tetrachloride (CCl4)-induced acute liver injury. The administration of a single dose of 40% CCl4 (1ml/kg b.w.) causes an increase in the activities of serum alanine aminotransferase (ALT) and aspirate aminotransferase (AST) enzymes and so pretreated orally of a dose from Cestrum parqui methanol extract (100, 500, 1000 mg/kg) and silymarin (200 mg/kg) for three consecutive days prior to The administration of a single dose of CCl4 significantly prevented the increase in the activities of these enzymes. Histological analysis showed that Cestrum parqui methanol extract at doses of 500 and 1000 mg/kg and silymarin reduced the incidence of liver lesions including vacuole formation, neutrophil infiltration and necrosis of hepatocytes induced by CCl4. The extract cause a negative result on the antioxidative enzymes, superoxide dismutase (SOD), glutathione peroxidase (GPx), glutathione reductase (GRd) and decreased malondialdehyde (MDA) level in liver, as compared to those in the CCl4-treated group and this suggests that the hepatoprotective activity of the extract is due to the antioxidant effect of the extract. Phytochemical analysis of the methanol extract from Cestrum parqui aerial parts showed that it contained different phytoconstituents, flavonoids, tannins, saponins, alkaloids, terpenes and carbohydrates.
Phytochemical and Biological Evaluation of Cassia tora, L. Seedsiosrjce
In the present study the total and the defatted alcoholic extracts of seeds of Cassia tora Linn.
(Leguminosae) were screened for hepatoprotective activity using adult Wister albino rats (120-170 g) as the
experimental animals. Hepatic injury caused by carbon tetra chloride, was analyzed through estimation of AST,
ALT, ALB and platelets in blood samples taken from the veins of orbital plexus of each animal as well as the
histopathological examination of the liver.The effects of the extracts were comparable with standardhepatoprotective drug Silymarin. On the other hand GC-MS analysis was performed on the fatty acid
composition of the lipoidal fraction for the seeds. The separated fatty acids were converted to their methyl ester
and then subjected to the analysis.
EFFECT OF DIFFERENT CHROMATOGRAPHIC FRACTION AQUEOUS AND ALCOHOLIC EXTRACTS O...Jing Zang
In recent studies Teucrium polium(T. polium ) was known as a hypoglycemic plants. But further research is needed to better understand the effect of Teucrium polium and biological active part of it. The purpose of this investigation is to examine the effect of different chromatographic fractions of aqueous and alcoholic extract of this plant on the level of insulin secretion and glucose content in hyperglycemic rat model. Also, our aim is determination of biological active fraction of aqueous and alcoholic extract of this plant. This study was carried out on the 36 rats. Hyperglycemia induced by administrating of 50 mg/kg alloxan intraperitoneally and glucose level was monitored for hyperglycemic status. Hyperglycemic was confirmed by blood glucose measurement. In each experiment 100 grams of Teucrium polium aerial parts powder were boiled with 2 Litter of distilled water for 36 h. The decoction preparation was then filtered through a gauz cloth followed by filtration through filter paper. The extract was evaporated to one-fifth of its original volume and kept at 4oC until its use. Determination of different fraction aqueous extract effect of Teucrium polium on glucose level and insulin secretion was carried out. Blood was collected from the tail of the rats. Then glucose and insulin level was evaluated. The hyperglycemic animals showed significant decrease in the blood glucose level in rats administered with fourth fraction compared with other factions. Administration of fourth fraction Teucrium polium aerial parts extract cause increase in insulin levels in alloxan-treated rats. Results suggest that treatment of fourth fraction Teucrium polium aerial parts extract may be useful in preventing the increase of glucose level in hyperglycemic rats. The interesting phenomenon of our results has shown that fourth fraction given parenterally possesses a hypoglycemic effect in alloxan hyperglycemic rats. Fourth fraction was found biological active and to be responsive to glucose challenge as evidenced by increase in insulin secretion.
Antioxidant potentials of tannic acid on lipid peroxidation induced by severa...Premier Publishers
Various prospective studies have indicated the antioxidant potency of tannic acid in several models. However, there is no clear-cut evidence revealing that the reported antioxidant properties of tannic acid remains potent regardless of the lipid sources and pro-oxidants employed for the oxidative assault. Hence, this study sought to investigate the antioxidant properties of tannic acid against cerebral and hepatic lipid peroxidation induced by several pro-oxidants (Iron (II) sulfate, Sodium nitroprusside, cyclophosphamide and acetaminophen) in vitro. Rats were decapitated under mild ether anesthesia and the tissues were rapidly dissected, placed on ice, weighed and immediately homogenized in cold 50 mM Tris-HCl, pH 7.4 (1/10, w/v). The homogenates were centrifuged for 10 min at 4000 g to yield a pellet that was discarded and a low-speed supernatant (S1). Our results indicated that Fe (II) showed the highest pro-oxidative effects in both tissues lipids. Furthermore, tannic acid demonstrated potent inhibitory effects against lipid peroxidation in both tissues lipids regardless of the pro-oxidant employed. To this end, there is a dire need to exploit the protective benefits of tannic acid as a potential exogenous antioxidant against lipid peroxidation with a view to providing solution to the global oxidative stress menace.
The Protective Role Of High Dietary Protein On Arsenic Induced Hepatotoxicity...IOSR Journals
The objective of the present investigation was to study the protective role of High dietary protein on arsenic induced hepatotoxicity model in adult male albino rats. Hepatotoxicity in rats was caused by arsenic tri oxide at a dose of 3mg- /ml/kg body weight. Hepamerz, a drug used as standard hepatoprotective agent, was administered orally as standard hepatoprotective agent for 14 consecutive days prior to arsenic treatment at a dose of 10mg- /ml/kg body weight. This drug has many side effects. These side effects have prompted the scientific world for the search of alternative natural remedies of liver damage. The High dietary protein was administered orally to rats along with arsenic. The biochemical parameters were investigated. The results indicated that biochemical changes produced by arsenic were restored to almost normal by High protein diet. The High protein diet produced hepatoprotective effect through the modulation of antioxidant - mediated mechanism by altering serum glutamate oxaloacetate transaminase (SGOT), serum glutamate pyruvate transaminase (SGPT), alkaline phosphatase (ALP), superoxide dismutase (SOD) and catalase (CAT) activities and reduced glutathione (GSH) and lipid peroxidation (LPO) levels - against arsenic induced hepatotoxicity model in rats.
Strategie nutraceutiche per ridurre l'infiammazione.CreAgri Europe
I polifenoli estratti dalle olive sono in grado di ridurre l'infiammazione mediata da TNF alfa. Esiste inoltre un effetto sinergico nella riduzione dello stato infiammatorio tra idrossitirosolo e glucosammina.
- inglese - testo scientifico -
Does allicin combined with vitamin B-complex have superior potentials than α-...Prof. Hesham N. Mustafa
Background: The current article aims to explore the protective potentials of α-tocopherol
alone and the combination of allicin and vitamin B-complex against lead-acetate
neurotoxicity on the cerebellar cortex.
Materials and methods: Forty rats were divided into four groups (n=10). Group 1 was the
control group. Group 2 received 10 mg/kg body weight (BW) of lead acetate. Group 3 was
exposed to 10 mg/kg BW of lead acetate plus a combination of allicin (100 mg/kg BW)
and vit. B-complex (40 mg/kg BW). Group 4 was administered lead acetate (10 mg/kg
BW) and α-tocopherol (100 mg/kg BW). The animals received treatment for sixty days by
oral gavage. All the groups were studied ultrastructurally and immunohistochemically with
glial fibrillary acidic protein (GFAP).
Results: The affected groups revealed shrunken and degenerated Purkinje cells with
irregular nuclei. The cytoplasm comprised several lysosomes, unhealthy mitochondria, and
dilated Golgi saccules. The myelinated nerve fibers demonstrated breaking of the myelin
sheaths, apparent vacuoles, and broad axonal spaces. Immunohistochemically, there was a
tremendous surge in GFAP-positive astrocytes in the lead acetate-treated group. These
histological and ultrastructural variations were ameliorated by the administration of α-
tocopherol and the combination of allicin and vit. B complex. Moreover, an apparent
decrease in the number of GFAP-positive astrocytes was obvious in the protected groups.
Conclusions: Although both α-tocopherol and the combination of allicin and vit. Bcomplex can be used as possible adjuvant therapies to ameliorate nervous system ailments
attributable to lead acetate, α-tocopherol showed more protective potential.
Key words: Allicin, Purkinje cells, Astrocytes, GFAP, Oligodendrocyte, Myelin Figure
Anti-diabetic potentials of Sorbaria tomentosa Lindl. Rehder: Phytochemistry ...RaktimavaDasSarkar
Original Artcle by Falak Naz, Muhammad Zahoor, Muhammad Ayaz, Muhammad Ashraf, Asif Nawaz, Amal Alotaibi.
Presentation prepared by Raktimava Das Sarkar
Similar to Antioxidant effect of propolis extract on liver (20)
Voici une reference pour les plantes, les arbustes et les arbes qui donne le nectar et pollen necessaire pour les abeilles.
A listing of plants, bushes and trees that are rich in nectar and pollen for bees.
Naturopathic Air Purification - Holistic Healing with PropolisBee Healthy Farms
A naturopathic solution to breathing holistic air using the purifying properties of propolis. A review of scientific studies and testimonials from the use of Propolair diffusers to cleanse air of microbes, mold and pollutants. Presented at CMACC, Oct 26, 2018 in Providence RI.
Propolis as an adjuvant in the treatment of Chronic PeriodontitisBee Healthy Farms
Periodontitis has multifactorial causes with the primary being pathogenic bacteria that reside in the subgingival area and possess potent mechanisms of damaging host defences. Inflammatory responses triggered in response to periodontal pathogens are the major events responsible for periodontal destruction.
Propolis has been used for the treatment of aphthous ulcers, candidiasis, gingivitis, periodontitis, and pulpitis. Studies on propolis applications have increased because of its therapeutic and biological properties. A study evaluated the antibacterial action of propolis against certain anaerobic oral pathogens and found it to be very effective.
Diabetes mellitus is spreading around the world, penetrating populations not only in poor and developing countries, but also in developed ones. Propolis, a complex resinous material collected by honey bees from buds and exudates of certain plant sources, containing flavonoids pinocebrin, galangin, chrysin, and caffeic acid phenethyl ester.
The use of propolis as an alternative healing therapy for type-2 diabetes mellitus has been claimed to alleviate the disease. Previous studies state that propolis improves normal homeostasis by balancing the body’s condition through the enhancement of the immune system. The histological analysis of the liver shows that at a dose of 50–200 mg/kg BW propolis does not show a toxic effect so that the dose is categorized safe.
Therefore, the ethanolic soluble derivative of propolis (EEP) extract warrant further studies as an antidiabetic agent that is safe for humans.
Reduced toxicity achieved in liver, spleen and pancreas with ApitherapyBee Healthy Farms
The human body is exposed nowadays to increasing attacks by toxic compounds in air pollution, industrially processed foods, alcohol and drug consumption that increase liver toxicity, leading to more and more severe cases of hepatic disorders. This study evaluated the influence of an Apitherapy diet in Wistar rats with carbon
tetrachloride-induced hepatotoxicity, by analyzing the biochemical determinations (enzymatic, lipid and protein profiles, coagulation parameters, minerals, blood count parameters, bilirubin levels) and histopathological changes at the level of liver, spleen and pancreas.
The Department of Agriculture, Food and Marine advises Irish beekeepers of traces of lead found in Irish honey between 2010 through 2013.
Though an investigation is ongoing as to the cause(s) of the contamination, it provides beekeepers 4 points to follow in order to avoid contact with lead.
Indian Mustard Bee Pollen Exhibits High Antioxidant ContentBee Healthy Farms
This study was designed to investigate the nutraceutical potential of monofloral Indian mustard bee pollen. It was found to be a rich source of nutrients providing high caloric value, making it a candidate for a potential nutraceutical agent. The study also found it possesses a high antioxidant content, especially in the principle polyphenols and flavonoids, which suggests its potential role in the prevention of free radical-implicated diseases. The DPPH-scavenging effect of this Indian mustard bee pollen further confirmed its antioxidant potential.
A review of the history, research and clinical studies conducted with Propolair propolis vaporizers and diffusers. Manufactured by the Italian company, Kontak, it was invented by a beekeeper to aid those with respiratory ailments.
Clinical studies confirm its antibacterial effectiveness, as well as its capacity to clean the air of carcinogenic pollutants.
New research reveals it possesses the richest flavonoid content of important phenolic acids and compounds in this unique blend of Italian propolis. To date, these units are used in clinics, nurseries, hospitals, offices and homes around the world.
The results of the study show a promising role of Acacia Honey, a natural product with proven therapeutic effects on skin wound healing. It accelerated the initial stage of corneal wound healing without the side effects found when using conventional treatments which contain preservatives. Corneal keratocytes cultured in media supplemented with 0.025% Acacia Honey showed an increase in proliferative capacity while retaining their morphology, gene and protein expressions with normal cell cycle.
Propolis Volatile Compounds - Review of its Chemical Diversity and Biological...Bee Healthy Farms
A thorough review of the chemical diversity and biological activity found in the volatile compounds in propolis. As a plant-derived product, the essential oils in propolis vary according to geography, plant origins and local biodiversity. Though antimicrobial properties of propolis are well-documented, this review confirmed effects on microorganisms including both Gram-positive and Gram-negative bacteria, as well as non-pathogenic fungi and fungal human pathogens. Regions covered include Europe, Asia, South American, Africa and tropical zones with stingless bees included.
Greek Honeys Exhibit Phenolic Acids with Antiatherogenic, Anticancer and Anti...Bee Healthy Farms
Greek honeys are rich in phenolic acids, in particular protocatechuic and p-hydroxybenzoic acid and exhibit significant antioxidant, anticancer and antiatherogenic activities which may be attributed, at least in part, to their phenolic acid content.
Honey Eye Drops Effective in Treating ConjunctivitisBee Healthy Farms
A double-blind study trial was designed to evaluate the efficacy and safety of topical honey eye drops in 60 patients with diagnosed Vernal Keratoconjunctivitis (VKC). This study aimed to determine the effect of honey drops on the symptoms of VKC and it was designed to find out a way to reduce the amount of corticosteroid usage. The results of this study showed that the use of honey drops in the treatment of VKC caused eye redness to improve, the limbal papillae to reduce, and allergic symptoms to improve.
This study investigated an anticancer effect of different honeys from Poland on tumor cell line - glioblastoma multiforme U87MG. Anti-proliferative activity of honeys and its interferences with temozolomide were determined by a cytotoxicity test and DNA binding by [H3]-thymidine incorporation. Results suggest that Polish honeys have an anti-proliferative and anti-metastatic effect on U87MG cell line. Therefore, natural bee honey can be considered as a promising adjuvant treatment for brain tumors
Propolis with its active component CAPE (Caffeic Acid Phenethyl Ester) stops breast cancer cell growth. These results of CAPE are present in the naturopathic formulation
of propolis, a widely available natural substance with an extended safety record, making it a naturally-occurring and readily available epigenetic agent with great potential in breast cancer and oncology in general. The ability to link the biological effects of a naturopathic remedy to the pharmacologic effects seen with an exciting class of drugs in the treatment of cancer opens the door to a host of new therapeutic opportunities for patients.
Neuroprotective responses of propolis and select flavonoidsBee Healthy Farms
The beneficial effects of propolis on human health and neurological diseases. Table describes the neuroprotective properties and biological activity of propolis and select flavonoids commonly found in propolis.
Antioxidant Activity and Biological Effects of Propolis ExplainedBee Healthy Farms
A thorough summary by Polish researchers of the magnificent properties of propolis. As stated below, "despite its variety, it is always highly biologically active". With over 300 compounds there are many applications in treating and preventing chronic diseases. Properties include: antibacterial, anti-inflammatory, anticarcinogenic, antiatherogenic, cardiovascular effects, estrogenic effects, anti-diabetic effects, anti-HIV activity and reparative-regenerative effects.
The high intake of refined sugars, mainly fructose has been implicated in the epidemiology of metabolic diseases in adults and children. With an aim to determine whether honey can substitute refined sugars without adverse effect, the long term efects of natural honey and cane syrup have been compared on visceral morphology in growing rats fed from neonatal age. Honey enhanced intestinal villi growth and did not cause pathology in the rodents' abdominal viscera, such as fatty degenerations in the liver.
Protective Effect of Egyptian Propolis Against Rabbit PasteurellosisBee Healthy Farms
Propolis is known for its protective effects on humans and animals, including improving respiratory conditions. It's also documented to be a very complementary adjuvant with other treatment modalities.
Pasteurella multocida is a well known cause of morbidity and mortality in rabbits. The predominant syndrome is upper respiratory disease or "snuffles." P. multocida is often endemic in rabbit colonies and the acquisition of infection in young rabbits is correlated to the prevalence in adult rabbits.
Evidence shows that honey improves glycemic control in diabetes mellitus. Besides its hypoglycemic effect, studies indicate that honey ameliorates lipid abnormalities
in rats and humans with diabetes. This review also validates the beneficial effects of oligosaccharides on various abnormalities commonly associated with these disorders. Based on the evidence that honey contains oligosaccharides, we hypothesize that oligosaccharides present in honey might contribute to the antidiabetic and other health-related beneficial effects of honey.
2. Zeliha S. Selamoglu et al.228
liver damage [5]. It depends on the degree of the
microcirculation exposed to the risen blood pres-
sure [5]. Hypertension is a major risk factor that
predisposes the liver to disorders. The liver active-
ly detoxifies and handles endogenous and exoge-
nous chemicals, making it vulnerable to injury [5].
The presence of different oxidizing species within
the body can also have an important function in
the development and progression of many disease
processes. In most recent works, oxidative stress
has been analyzed using a lipid peroxidation assay.
Malondialdehyde (MDA), the last product of lip-
id peroxidation, was used as an indicator of local
tissue damage and liver injury [2, 8]. Lipid perox-
ides could change biological membrane properties,
resulting in severe cell damage [9, 10]. To reduce
such damage, cells have defence mechanisms in-
cluding both enzymatic and nonenzymatic process-
es. For example, enzymatic, antioxidative enzymes
such as catalase (CAT) and nonenzymatic, which
are antioxidant molecules such as flavonoids. Exog-
enous antioxidative compounds must be delivered
when reactive oxygen species overrun the endoge-
nous protective systems. Bioflavonoids are effective
molecules as antioxidants. These compounds have
the various antioxidant features to preclude oxida-
tive stress [11]. These molecules block the oxida-
tion of lipids and lead some roles, such as hypoten-
sive properties [12]. In most studies, the biological
or pharmacological properties were associated with
phenolic compounds, chiefly to flavonoids and ar-
omatic acids and ester. Propolis, which contains
rich flavonoids, is a resinous matter that honey-
bees collect from various plant exudates and use
to fill gaps and seal parts of the hive [13]. There-
fore, we performed the present study to evaluate
the antioxidant and antihypertensive potential of
ethanol extract of propolis on the well-established
L-NAME-induced rat model by monitoring the ex-
tent of lipid peroxidation and NO, and the status of
CAT as an enzymatic antioxidant in the rat liver.
Material and Methods
Experimental Section
Twenty eight male Wistar rats weighing
200–250 g were placed in a quiet, temperature
(21 ± 2°C) and humidity (60 ± 5%) controlled
room in which a 12–12 h light–dark cycle was
maintained. All experiments were performed be-
tween 9:00 and 17:00. All experiments in this study
were performed in accordance with the guidelines
for animal research from the National Institutes of
Health and were approved by the Ethical Commit-
tee on Animal Research at Firat University, Elazig.
Preparation of Propolis
Extract Solution
Propolis is generally extracted with ethanol or
water, and these extracts have been used in folk
medicine. The composition of propolis depends
on the solvent used for its extraction. In addition,
biological activities could be related to its chemical
composition [12]. This bee product was collected
from the village of Kocaavsar in Balikesir, Turkey.
The propolis extract was prepared to 30 g of prop-
olis, completing the volume to 100 mL with 70%
ethanol. The extracts were then protected from
light, filtered twice, dried and stored in sealed bot-
tles at 4°C until used [14].
Experimental Design
The experimental groups were designed as four
groups comprised of seven rats each: (Group 1)
sham-oparated(control),(Group2)propolisgroup,
and (Group 3) L-NAME group and (Group 4)
L NAME + propolis group. The control group
received normal saline intraperitoneally (i.p.)
for 15 days. The propolis group received prop-
olis (200 mg/kg) by gavage [15]. The L-NAME
group received the non-specific NOS inhibitor
L-NAME (40 mg/kg, i.p.) for 15 days [15]. The
L-NAME + propolis group received both L-NAME
(40 mg/kg,i.p.)for15daysandpropolis(200 mg/kg,
gavage) for the last 5 days. The L-NAME (Fluka
Chemie, Switzerland) was dissolved in normal sa-
line (0.09% NaCl w/v). The propolis extract was
dissolved in distilled water.
Preparation of Tissues
for Biochemical Analyses
After these treatments, the rats were anesthe-
tized with 75 mg/kg sodium pentobarbital, their
chests were opened, the vena cava was cut and then
30 mL of 0.9% NaCl was injected into the heart to
rinse blood from the body in the anesthetized rats.
The liver tissue of the rats was kept at –80°C un-
til used. These liver tissues were segregated into
2 sections for assay of enzymatic activity, lipid per-
oxidation and NO levels. The liver tissues were ho-
mogenized in 100 mL of 2 mM phosphate buffer,
pH 7.4 using a PCV Kinematica Status Homogeniz-
er. The homogenized samples were sonicated for
30 s, the sonications interrupted with a 30 s pause
on ice and then centrifuged at 12.000 g for 15 min
at 4°C. The supernatants, if not used for enzyme
assay, were stored in a deep freeze at –80°C. These
samples were used for total protein and CAT activ-
ity analyses. The other parts of the tissue homog-
enates were used for lipid peroxidation analyses.
3. Oxidative Stress and Propolis in Liver 229
After being washed 3 times with ice-cold 0.9%
NaCl, the liver tissue parts were homogenized with
1.15% KCl. These tissue homogenates were used
for assay of MDA and NO levels.
Measurement of Total Protein
Totalproteinlevelsofthetissuesweretestedac-
cording to the colorimetric method of Lowry et al.
using BSA as the standard [16].
Assay of CAT Activity
CAT activity in the rat liver tissues was ana-
lyzed using the method by Aebi [17]. It was ex-
pressed as kU/g protein, where k is the first-order
rate stable.
Measurement of NO Levels
NO levels in the liver tissues were determined
by a modification of the Griess reaction [18]. Since
NO is an unstable molecule; it converts to its end
products (nitrate and nitrite) in a short time.
Therefore, the measurements of nitrate and nitrite
were used in this study, where total nitrite con-
centrations equal NO. The levels of nitrite and ni-
trate were analyzed using the Griess reaction. For
measuring total nitrite, the samples were incubat-
ed with cadmium for 2 h, which converts all nitrate
to nitrite. Serum nitrate concentrations were cal-
culated by subtracting the direct nitrite value from
total nitrite value.
Measurement of MDA Levels
MDA levels in the liver tissues were measured
spectrophotometrically with a thiobarbituric ac-
id (TBA) solution [19]. The data was expressed as
nm/g tissue.
Statistical Analysis
The data were analyzed with SPSS 16.0 for
Windows by using one-way analysis of variance
(ANOVA). Differences between ranks were de-
termined using Duncan’s multiple range analy-
sis in which the significance level was described as
p < 0.01.
Results
Results of CAT Activity
The effects of L-NAME and propolis on CAT
activity and NO and MDA levels in rat liver are
shown in Table 1. In the liver of rats exposed to
L-NAME had important effects on CAT activity.
As an important part of the antioxidant system,
the CAT activity increased in the liver tissues of
L-NAME-induced rats (p < 0.01) (Table 1). The
CAT activity decreased (p < 0.01) in the propo-
lis group compared to the L-NAME and L-NAME
+ propolis groups (Table 1). There was a statisti-
cally significant decrease in the CAT activity of
the L-NAME + propolis group compared to the
L-NAME group (p < 0.01) (Table 1).
Results of NO Level
The effects of the propolis and L-NAME on
NO levels are demonsrated in Table 1. NO levels
were found to be significantly decreased in the liv-
er tissues of the rats applied to L-NAME (p < 0.01)
compared to the control group (Table 1). The NO
level increased (p < 0.01) in the liver tissues of rats
treated with propolis compared to the L-NAME
and L-NAME + propolis groups and was close to
the values of the control group (Table 1). There
was a statistically significant increase in the NO
level of the L-NAME + propolis group compared
to the L-NAME group (p < 0.01) (Table 1).
Table 1. Alteration with propolis treatment of CAT activity, NO and MDA levels in the liver tissues of L-NAME induced
rats. All data points are the average of n = 7 with ± STD DEVs. Data with different superscript letters (a, b, c) means statisti-
cally significant among of all
Parameters
Groups
CAT (kU/g protein) NO (µmol/g tissue) MDA (nmol/g tissue)
Control 5.56 ± 0.44c 6.98 ± 0.72b 8.27 ± 0.99c
L-NAME 8.28 ± 0.90a 4.12 ± 0.52c 12.86 ± 1.74a
Propolis 5.50 ± 0.45c 7.35 ± 0.49a 7.32 ± 0.63d
L-NAME + propolis 6.20 ± 0.39b 4.49 ± 0.78b, c 10.02 ± 0.39b
groups (p < 0.01).
4. Zeliha S. Selamoglu et al.230
Results of MDA Level
The effects on MDA levels of the L-NAME,
propolis and L-NAME + propolis applications are
shown in Table 1. There was a significant increase
(p < 0.01) in the MDA level of rats exposed to
L-NAME compared to the control, propolis, and
L-NAME + propolis groups (Table 1). Propolis
treatment to the NOS-inhibited rats created signif-
icant decreases (p < 0.01) in MDA level compared
to the L-NAME applied group (Table 1).
Discussion
Endothelial dysfunction induced by reac-
tive oxygen species (ROS) (especially superoxide)
causes decreased NO bioavailability and deterio-
rated vasodilation. Increased production of ROS
has been shown in experimental and human hy-
pertension [20]. Hypertension is the main risk fac-
tor that predisposes the tissues to damage, which
is responsible for morbidity and mortality in pa-
tients. Changes to the microvascular system alter
organ perfusion and lead to hypertension-related
damage [7]. Previous studies have shown that ap-
plication of the NOS inhibitor L-NAME have re-
sulted in increased ROS mediated tissue injury
[21–23]. As a result, the harmful effects of ROS
could be equalized by NO. Some researchers have
emphasized that bioflavonoids may play a preven-
tive role in tissues by increasing the presence of
NO. NO deficiency model hypertensive rats are
helpful resources for the work of the protective ef-
fects of natural products under hypertension and
oxidative stress [5]. The antihypertensive effects
of various foods and natural products have been
reported [24]. It has been suggested that bioflavo-
noids may also exert a direct effect on radical scav-
enging enzymes occurring in hypertension relat-
ed organ damage [15, 25]. Pharmacological agents
used to lower blood pressure can help prevent/re-
duce hypertension related organ injury. Polyphe-
nols have been demonstrated to protect from this
damage by the blood-pressure-lowering activi-
ty too [26]. The helpful effects of many free radi-
cal scavengers and antioxidants have been shown
on hypertension and oxidative stress [27]. In some
studies, flavonoids were found to significally im-
prove a liver injury. Different flavonoids have al-
so shown some hepatoprotective activity [2]. The
study has indicated various biological activities of
flavonoids, including vasodilator effects in isolat-
ed aorta stimulated with noradrenaline, and fla-
vonoids can show antihypertensive effects in hy-
pertension [24]. Inadequate NO production leads
to vasoconstriction and blood pressure increases,
which eventually mediates the complex hemody-
namic disorders associated with chronic diseases
[28]. Partial NO blockage over an extended period
can produce a stable hypertension with vasocon-
striction and organ damage. L-NAME causes an
increase in water intake with or without elevation
in systemic arterial pressure. Similarly, L-NAME
causes an increase in water excretion, associat-
ed with the pressure of antidiuretic hormone re-
lease from the pituitary due to the significant neu-
ral activity of NO too [5]. Hypertensive humans
show increased levels of superoxide and hydrogen
peroxide in plasma [20]. Moreover, enhanced en-
dothelial superoxide anion production has been
identified in vessels of spontaneously hypertensive
rats, a valuable animal model of essential hyper-
tension in humans, and these effects are related to
impairment of endothelium dependent relaxation.
Various foods and natural products have different
activities such as an inhibitory activity against an-
giotensin converting enzymes, vasodilatory action
or inhibitory effects on the release of noradrena-
line from sympathetic nerves [24]. It is well known
that propolis and its metabolites are free radical
scavengers and antioxidants [29]. Some data has
indicated that an ethanol extract of propolis and
its main compounds would be useful for improv-
ing hypertension as a functional food [24]. Flavo-
noids are ubiquitous in plant foods and drinks and
therefore an important supply is consumed in our
daily diet. These flavonoids are differently asso-
ciated with the sensory and nutritional quality of
our plant foods. The in vitro antioxidant activities
have been recognised for decades, but it is still not
clear whether there are other helpful effects in vi-
vo. Many other biological activities for flavonoids
have been described but we are not sure how to use
flavonoids to actually contribute to human health.
However, some recent studies suggest that they
may be significant as anticancer agents [30].
In this study, it has been observed that prop-
olis, which is a natural bee product, has the abili-
ty to reduce the hypertensive effect and oxidative
stress in liver of rats. Finally, if there is not enough
L-arginine to compete with L-NAME, NOS, which
carries out NO synthesis, inhibits. Thus, the oc-
currence of NO may lessen. Hypertension occurs
by the reduction of NO because of the inhibition
of acute or chronic NOS, so the reduction in NO
synthesis acts as an important role in hyperten-
sion physiopathology. There should be enough
arginine to compete with L-NAME for increas-
ing the production of NO and activating NOS. It
may be thought that this requisite can be obtained
with a compound rich with arginine like propo-
lis. This case is important for providing arginine to
compete with L-NAME and for the carrying out of
5. Oxidative Stress and Propolis in Liver 231
enzyme activation. The activated enzyme increas-
es the formation of NO which shows a vasodila-
tor effect [34]. The study for new antioxidants as
potential drugs is an active field of pharmacology
of natural products and ethnopharmacology. This
work provides evidence of the protective effects of
propolis in hypertensive target organs under a NO
deficient environment using L-NAME. Oxidative
stress increased by the administration of L-NAME.
As a result, CAT activity increased for inhibition of
oxidative stress too. After propolis treatment, CAT
activity parallelly decreased with decreasing oxida-
tive stress.
In this study, CAT activity in the liver tissue
increased in the L-NAME-induced group. Stress
appeared by L-NAME triggered CAT activity. But
propolis altered the decreasing CAT activity in rat
liver. Propolis caused a slight decrease in CAT ac-
tivity in the liver of L-NAME-treated rats. Our da-
ta shows that a propolis remedy suppresses oxida-
tive stress as monitored by the height activity of
the basis antiperoxidative enzyme, CAT, and re-
duced lipid peroxidation products in rat liver. The
results demonstrate L-NAME-induced oxidative
stress and enhanced CAT activity. Oxidative stress
and MDA levels increased with the administration
of L-NAME. Oxidative stress was decreased with
a treatment of propolis exract. Propolis proved
to be beneficial in decreasing the levels of MDA
in the liver. Therefore, propolis extract provided
protection against free radicals and lipid peroxida-
tion measured as MDA in rat liver tissue. Prop-
olis showed antioxidant effects against L-NAME-
-induced oxidative stress in rats. The results of
this study are consistent with the literature [15].
L-NAME–treated rats also showed increased tissue
lipid peroxidation (MDA levels) and decreased liv-
er antioxidant capacity. These results indicate vas-
cular and systemic oxidative stress [32]. Various
propolis extracts are generally considered to be an-
tioxidants. They could demonstrate various results
when tested in animal models and human subjects.
In recent years, there has been a great deal of stud-
ies carried out on the biological activities of prop-
olis [15, 29, 33–35]. If antioxidant defense systems
intake sufficient antioxidants including micronu-
trients, it may prevent lipid peroxidation. Oxida-
tive factors may markedly increase oxidative cell
injury. Propolis has antioxidant properties and
scavenges free radicals, thus it can prevent tissue
damage [29]. In conclusion, in the present study,
application of L-NAME to the Wistar rats resulted
in well-developed oxidative stress. Also, we have
reported effects against oxidative stress of the an-
tioxidant potential of propolis extract. This study
will shed light on the new research of pharmacol-
ogy of natural products, allowing various usages
of propolis to keep the inner balance of the body
constant and give direction to the developments of
new natural extracts and preparations.
Acknowledgements. Our gratitude goes to Dr. Engin Sahna at Firat University in Turkey.
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Address for correspondence:
Zeliha S. Selamoglu
Department of Biology
Faculty of Arts and Science
Nigde University
Nigde
51200 Turkey
Tel: +90 388 22 54 211
E-mail: ztalas@nigde.edu.tr
Conflict of interest: None declared
Received: 16.04.2013
Revised: 24.03.2014
Accepted: 19.03.2015