Explore the dynamic world of screening models for immunosuppressants in our comprehensive academic seminar. Delve into cutting-edge methodologies and advancements aimed at enhancing efficacy and safety profiles. Uncover the latest innovations driving the development of immunosuppressive therapies, vital for transplant success and autoimmune disorder management. Join us on this enlightening journey through the evolving landscape of immunosuppressant screening models.
Screening methods of immunomodulators by shivam diwakerShivam Diwaker
Immune Modulators are the substances or drugs or chemical compounds that are used for the modification in the Immune system such as stimulate and suppress.
Screening models for immunomodulatory agents:- Introduction for immunostimulants and immunosuppressant, Models for immunomodulatory agents, Screening for immunostimulants, screening for immunosuppressant
International Journal of Pharmaceutical Science Invention (IJPSI)inventionjournals
is an international journal intended for professionals and researchers in all fields of Pahrmaceutical Science. IJPSI publishes research articles and reviews within the whole field Pharmacy and Pharmaceutical Science, 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
Screening methods of immunomodulators by shivam diwakerShivam Diwaker
Immune Modulators are the substances or drugs or chemical compounds that are used for the modification in the Immune system such as stimulate and suppress.
Screening models for immunomodulatory agents:- Introduction for immunostimulants and immunosuppressant, Models for immunomodulatory agents, Screening for immunostimulants, screening for immunosuppressant
International Journal of Pharmaceutical Science Invention (IJPSI)inventionjournals
is an international journal intended for professionals and researchers in all fields of Pahrmaceutical Science. IJPSI publishes research articles and reviews within the whole field Pharmacy and Pharmaceutical Science, 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
It is a sterile solution derived from the concentrated, soluble products of growth of the tubercle bacillus (Mycobacterium tuberculosis or Mycobacterium bovis) prepared in a special medium
Bioavailability Studies of Ketorolac Tromethamine Fast Dissolving Tablets Pre...IOSR Journals
This study was concerned with the investigation of acute pharmacological responses (pharmacodynamics) including analgesic and anti-inflammatory effects of ketorolac tromethamine fast dissolving tablets prepared by direct compression method using 3% croscarmellose sodium as a superdisintegrant by applying tail flick test and carragenan induced rat paw edema test respectively. Also, the work aimed to develop a sensitive LC-MS/MS method for simultaneous determination of ketorolac tromethamine in human plasma samples released from fast dissolving tablets. Also, to estimate whether the prepared tablet dosage form increases the bioavailability of ketorolac tromethamine in the body compared to marketed conventional tablet. From this study, it could be inferred that ketorolac tromethamine fast dissolving tablets (G5) containing (3% corscarmellose sodium as a superdisintegrant, 30% Avicel pH102, 5% aspartame, 1% talc, 1% magnesium stearate, and mannitol Q.S.) and prepared by direct compression method could be considered as a promising formula to enhance bioavilability of the drug.
Title: Sense of Taste
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the structure and function of taste buds.
Describe the relationship between the taste threshold and taste index of common substances.
Explain the chemical basis and signal transduction of taste perception for each type of primary taste sensation.
Recognize different abnormalities of taste perception and their causes.
Key Topics:
Significance of Taste Sensation:
Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
Inability to taste certain substances, particularly thiourea compounds
Example: Phenylthiocarbamide
Structure and Function of Taste Buds:
Composition: Epithelial cells, Sustentacular/Supporting cells, Taste cells, Basal cells
Features: Taste pores, Taste hairs/microvilli, and Taste nerve fibers
Location of Taste Buds:
Found in papillae of the tongue (Fungiform, Circumvallate, Foliate)
Also present on the palate, tonsillar pillars, epiglottis, and proximal esophagus
Mechanism of Taste Stimulation:
Interaction of taste substances with receptors on microvilli
Signal transduction pathways for Umami, Sweet, Bitter, Sour, and Salty tastes
Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
Role of Saliva in Taste:
Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
Mechanisms behind taste preference and aversion
Influence of receptors and neural pathways
Impact of Sensory Nerve Damage:
Degeneration of taste buds if the sensory nerve fiber is cut
Abnormalities of Taste Detection:
Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
Neurotransmitters and Taste Threshold:
Effects of serotonin (5-HT) and norepinephrine (NE) on taste sensitivity
Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
Increased number of fungiform papillae
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...kevinkariuki227
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
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It is a sterile solution derived from the concentrated, soluble products of growth of the tubercle bacillus (Mycobacterium tuberculosis or Mycobacterium bovis) prepared in a special medium
Bioavailability Studies of Ketorolac Tromethamine Fast Dissolving Tablets Pre...IOSR Journals
This study was concerned with the investigation of acute pharmacological responses (pharmacodynamics) including analgesic and anti-inflammatory effects of ketorolac tromethamine fast dissolving tablets prepared by direct compression method using 3% croscarmellose sodium as a superdisintegrant by applying tail flick test and carragenan induced rat paw edema test respectively. Also, the work aimed to develop a sensitive LC-MS/MS method for simultaneous determination of ketorolac tromethamine in human plasma samples released from fast dissolving tablets. Also, to estimate whether the prepared tablet dosage form increases the bioavailability of ketorolac tromethamine in the body compared to marketed conventional tablet. From this study, it could be inferred that ketorolac tromethamine fast dissolving tablets (G5) containing (3% corscarmellose sodium as a superdisintegrant, 30% Avicel pH102, 5% aspartame, 1% talc, 1% magnesium stearate, and mannitol Q.S.) and prepared by direct compression method could be considered as a promising formula to enhance bioavilability of the drug.
Title: Sense of Taste
Presenter: Dr. Faiza, Assistant Professor of Physiology
Qualifications:
MBBS (Best Graduate, AIMC Lahore)
FCPS Physiology
ICMT, CHPE, DHPE (STMU)
MPH (GC University, Faisalabad)
MBA (Virtual University of Pakistan)
Learning Objectives:
Describe the structure and function of taste buds.
Describe the relationship between the taste threshold and taste index of common substances.
Explain the chemical basis and signal transduction of taste perception for each type of primary taste sensation.
Recognize different abnormalities of taste perception and their causes.
Key Topics:
Significance of Taste Sensation:
Differentiation between pleasant and harmful food
Influence on behavior
Selection of food based on metabolic needs
Receptors of Taste:
Taste buds on the tongue
Influence of sense of smell, texture of food, and pain stimulation (e.g., by pepper)
Primary and Secondary Taste Sensations:
Primary taste sensations: Sweet, Sour, Salty, Bitter, Umami
Chemical basis and signal transduction mechanisms for each taste
Taste Threshold and Index:
Taste threshold values for Sweet (sucrose), Salty (NaCl), Sour (HCl), and Bitter (Quinine)
Taste index relationship: Inversely proportional to taste threshold
Taste Blindness:
Inability to taste certain substances, particularly thiourea compounds
Example: Phenylthiocarbamide
Structure and Function of Taste Buds:
Composition: Epithelial cells, Sustentacular/Supporting cells, Taste cells, Basal cells
Features: Taste pores, Taste hairs/microvilli, and Taste nerve fibers
Location of Taste Buds:
Found in papillae of the tongue (Fungiform, Circumvallate, Foliate)
Also present on the palate, tonsillar pillars, epiglottis, and proximal esophagus
Mechanism of Taste Stimulation:
Interaction of taste substances with receptors on microvilli
Signal transduction pathways for Umami, Sweet, Bitter, Sour, and Salty tastes
Taste Sensitivity and Adaptation:
Decrease in sensitivity with age
Rapid adaptation of taste sensation
Role of Saliva in Taste:
Dissolution of tastants to reach receptors
Washing away the stimulus
Taste Preferences and Aversions:
Mechanisms behind taste preference and aversion
Influence of receptors and neural pathways
Impact of Sensory Nerve Damage:
Degeneration of taste buds if the sensory nerve fiber is cut
Abnormalities of Taste Detection:
Conditions: Ageusia, Hypogeusia, Dysgeusia (parageusia)
Causes: Nerve damage, neurological disorders, infections, poor oral hygiene, adverse drug effects, deficiencies, aging, tobacco use, altered neurotransmitter levels
Neurotransmitters and Taste Threshold:
Effects of serotonin (5-HT) and norepinephrine (NE) on taste sensitivity
Supertasters:
25% of the population with heightened sensitivity to taste, especially bitterness
Increased number of fungiform papillae
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Ve...kevinkariuki227
TEST BANK for Operations Management, 14th Edition by William J. Stevenson, Verified Chapters 1 - 19, Complete Newest Version.pdf
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Tom Selleck Health: A Comprehensive Look at the Iconic Actor’s Wellness Journeygreendigital
Tom Selleck, an enduring figure in Hollywood. has captivated audiences for decades with his rugged charm, iconic moustache. and memorable roles in television and film. From his breakout role as Thomas Magnum in Magnum P.I. to his current portrayal of Frank Reagan in Blue Bloods. Selleck's career has spanned over 50 years. But beyond his professional achievements. fans have often been curious about Tom Selleck Health. especially as he has aged in the public eye.
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Introduction
Many have been interested in Tom Selleck health. not only because of his enduring presence on screen but also because of the challenges. and lifestyle choices he has faced and made over the years. This article delves into the various aspects of Tom Selleck health. exploring his fitness regimen, diet, mental health. and the challenges he has encountered as he ages. We'll look at how he maintains his well-being. the health issues he has faced, and his approach to ageing .
Early Life and Career
Childhood and Athletic Beginnings
Tom Selleck was born on January 29, 1945, in Detroit, Michigan, and grew up in Sherman Oaks, California. From an early age, he was involved in sports, particularly basketball. which played a significant role in his physical development. His athletic pursuits continued into college. where he attended the University of Southern California (USC) on a basketball scholarship. This early involvement in sports laid a strong foundation for his physical health and disciplined lifestyle.
Transition to Acting
Selleck's transition from an athlete to an actor came with its physical demands. His first significant role in "Magnum P.I." required him to perform various stunts and maintain a fit appearance. This role, which he played from 1980 to 1988. necessitated a rigorous fitness routine to meet the show's demands. setting the stage for his long-term commitment to health and wellness.
Fitness Regimen
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Tom Selleck health and fitness regimen has evolved. adapting to his changing roles and age. During his "Magnum, P.I." days. Selleck's workouts were intense and focused on building and maintaining muscle mass. His routine included weightlifting, cardiovascular exercises. and specific training for the stunts he performed on the show.
Selleck adjusted his fitness routine as he aged to suit his body's needs. Today, his workouts focus on maintaining flexibility, strength, and cardiovascular health. He incorporates low-impact exercises such as swimming, walking, and light weightlifting. This balanced approach helps him stay fit without putting undue strain on his joints and muscles.
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In recent years, Selleck has emphasized the importance of flexibility and mobility in his fitness regimen. Understanding the natural decline in muscle mass and joint flexibility with age. he includes stretching and yoga in his routine. These practices help prevent injuries, improve posture, and maintain mobilit
micro teaching on communication m.sc nursing.pdfAnurag Sharma
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- Video recording of this lecture in English language: https://youtu.be/lK81BzxMqdo
- Video recording of this lecture in Arabic language: https://youtu.be/Ve4P0COk9OI
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Recomendações da OMS sobre cuidados maternos e neonatais para uma experiência pós-natal positiva.
Em consonância com os ODS – Objetivos do Desenvolvimento Sustentável e a Estratégia Global para a Saúde das Mulheres, Crianças e Adolescentes, e aplicando uma abordagem baseada nos direitos humanos, os esforços de cuidados pós-natais devem expandir-se para além da cobertura e da simples sobrevivência, de modo a incluir cuidados de qualidade.
Estas diretrizes visam melhorar a qualidade dos cuidados pós-natais essenciais e de rotina prestados às mulheres e aos recém-nascidos, com o objetivo final de melhorar a saúde e o bem-estar materno e neonatal.
Uma “experiência pós-natal positiva” é um resultado importante para todas as mulheres que dão à luz e para os seus recém-nascidos, estabelecendo as bases para a melhoria da saúde e do bem-estar a curto e longo prazo. Uma experiência pós-natal positiva é definida como aquela em que as mulheres, pessoas que gestam, os recém-nascidos, os casais, os pais, os cuidadores e as famílias recebem informação consistente, garantia e apoio de profissionais de saúde motivados; e onde um sistema de saúde flexível e com recursos reconheça as necessidades das mulheres e dos bebês e respeite o seu contexto cultural.
Estas diretrizes consolidadas apresentam algumas recomendações novas e já bem fundamentadas sobre cuidados pós-natais de rotina para mulheres e neonatos que recebem cuidados no pós-parto em unidades de saúde ou na comunidade, independentemente dos recursos disponíveis.
É fornecido um conjunto abrangente de recomendações para cuidados durante o período puerperal, com ênfase nos cuidados essenciais que todas as mulheres e recém-nascidos devem receber, e com a devida atenção à qualidade dos cuidados; isto é, a entrega e a experiência do cuidado recebido. Estas diretrizes atualizam e ampliam as recomendações da OMS de 2014 sobre cuidados pós-natais da mãe e do recém-nascido e complementam as atuais diretrizes da OMS sobre a gestão de complicações pós-natais.
O estabelecimento da amamentação e o manejo das principais intercorrências é contemplada.
Recomendamos muito.
Vamos discutir essas recomendações no nosso curso de pós-graduação em Aleitamento no Instituto Ciclos.
Esta publicação só está disponível em inglês até o momento.
Prof. Marcus Renato de Carvalho
www.agostodourado.com
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Flu Vaccine Alert in Bangalore Karnatakaaddon Scans
As flu season approaches, health officials in Bangalore, Karnataka, are urging residents to get their flu vaccinations. The seasonal flu, while common, can lead to severe health complications, particularly for vulnerable populations such as young children, the elderly, and those with underlying health conditions.
Dr. Vidisha Kumari, a leading epidemiologist in Bangalore, emphasizes the importance of getting vaccinated. "The flu vaccine is our best defense against the influenza virus. It not only protects individuals but also helps prevent the spread of the virus in our communities," he says.
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Healthcare providers are also stressing the importance of continuing COVID-19 precautions. Wearing masks, practicing good hand hygiene, and maintaining social distancing are still crucial, especially in crowded places.
Protect yourself and your loved ones by getting vaccinated. Together, we can help keep Bangalore healthy and safe this flu season. For more information on vaccination centers and schedules, residents can visit the Karnataka Health Department’s official website or follow their social media pages.
Stay informed, stay safe, and get your flu shot today!
1. Pr eclinical Scr eening models f or
I mmunosuppr essive agents
Guided By
Mr. Mukul Tambe
Assistant professor Dept. of Pharmacology
5/8/2024
1
Presented By
Mr. Rahul Tipare
M pharm (Pharmacology)
2. •What are immunosuppressant ?
•How normal immune response
occurs ?
•In-vivo preclinical screening
model for immunosuppressant
•In-vitro preclinical screening
model for immunosuppressants
•Summary
•References
5/8/2024
2
CONTENTS
3. IMMUNOSUPPRESSANTS
Immunosuppressants are medications that
suppress or dampen the activity of the immune
system.
APPLICATIONS
● Prevent the body from rejecting transplanted organs
● Treat autoimmune disorders where the immune system
mistakenly attacks healthy tissues.
Example = Multiple sclerosis , Rheumatoid Arthritis
Some existing immunosuppressants are
Cyclosporine , tacrolimus , sirolimus , abatacept , belatacept
5/8/2024 Reference = Essential of medical pharmacology by K.D. Tripathi 3
4. Normal Immune Response & Site of action of Existing
Immunosuppressants
5/8/2024
Reference = Essential of medical pharmacology by K.D. Tripathi & Speed
pharmacology 4
5. in-vivo SCREENING MODELS FOR
IMMUNOSUPPRESSENT DRUGS
Acute Systemic Anaphylaxis in Rats
Anti Anaphylactic Activity (Schultz Dale Reaction)
Passive Cutaneous Anaphylaxis
Arthrus Type Immediate Hypersensitivity
Delayed Type Hypersensitivity
5/8/2024 Reference = Drug Discovery And Evaluation by H. Gerhard Vogal
5
6. Acute Systemic Anaphylaxis In Rats
Female Sprague
Dawley Rat
Weight 120 gm
10 mg/kg IM injection of ovalbumin
1ml bordetella pertusis suspension IP route
After 11 days 25mg/kg ovalbumin IV route
18 hr prior to challenge
Test = 1- 10 mg/kg dexamethasone SC route
Control = vehicle
Evaluation = shock symptoms and mortality counted
5/8/2024
Reference = Drug Discovery And Evaluation by H.
Gerhard Vogal
6
7. Modifications of Acute systemic anaphylaxis model
In Brown Norway Rats
• By Ufkes and Ottenhof ,1984
• Given suspension of trinitrophenyl
haptenized ovalbumin together with
AIPO4
• Bronchial and cardiovascular function
were studied after treatment with
Antiallergic agents
In Brown Norway Rats
• By Elwood et al. ,1992
• Studied the effects of Dexamethasone
and Cyclosporin A on
Hyperresponsiveness & Inflammatory
cell Responses
5/8/2024
Reference = Drug Discovery And Evaluation by
H. Gerhard Vogal
7
8. Guinea Pig
Body weight
300 to 350 gm
Anti- Anaphylactic Activity (Schultz Dale Reaction)
Sensitized with Alum Precipitated egg
Albumin Give injection of 0.125ml egg
albumin in each foot pad & 0.5 ml
Subcutaneously
After 4 weeks, Animals are Sacrificed and
ileum is Dissected out
2-3 cm long ileum is Mounted in an Organ
bath in tyrode solution at 37°C
Contractility of ileum strips is tested by
adding standard in one organ bath and Test
Compound in Another organ bath
Evaluation= The Contractions are Recorded with strain gauges by a Polygraph
5/8/2024 Reference = Drug Discovery And Evaluation by H. Gerhard Vogal
8
9. Modifications of Anti Anaphylactic Activity ( Schultz Dale Reaction)
In swiss albino mice
• By Koppel et.al (1981)
• Developed method to induce contraction of mouse
trachea by antigen
5/8/2024 Reference = Drug Discovery And Evaluation by H. Gerhard Vogal 9
10. Passive Cutaneous Anaphylaxis
Antiserum Injected by IM route to shaved
dorsal skin of rats
After 24 hrs IV Administration of 0.1 ml
of mixture of 2.5% Evans blue & 25
mg/ml of egg albumin
Test compound is administered with
mixture & After 30 min animal is
Sacrificed
Amount of Evans blue dye that leaked is
extracted and determined colorometrically
at 620 millimicron wavelength
Albino Rats
Body weight
120 gm
Evaluation = Amount of Evans blue that extracted from
passive cutaneous anaphylactic reaction of control group
compared to test group
5/8/2024
Reference = Drug Discovery And Evaluation by H. Gerhard Vogal 10
11. Modifications of Passive Cutaneous Anaphylaxis model
In Rats
• By Goose & Blair (1969)
• Used Bordetella pertusis as
antigen in Passive
cutaneous anaphylaxis
In Rhesus Monkey
• By Patterson et al. (1971)
• Tested Passive Cutaneous
reactivity to antihuman IgE
in Rhesus Monkey
5/8/2024
Reference = Drug Discovery And Evaluation by H. Gerhard Vogal 11
12. Arthrus Type Immediate Hypersensitivity
Wistar or Sprague
Dawley Rat
Body weight 220-
280 gm
7 Days prior to Experiment Rats are
given 0.5 ml Ovalbumin suspension by
IM route
Test group 1 hour prior test compound
is administered and challenged with 0.1
ml of Ovalbumin in left hind paw
Control group treated with solvent
alone
3rd Group i.e. Negative Control (Non
Sensitized ) treated with solvent
Evaluation = The changes in footpad thickness is expressed as
percent Change From the vehicle control group .
5/8/2024 Reference = Drug Discovery And Evaluation by H. Gerhard Vogal 12
13. Modifications of Arthrus Type Immediate Hypersensitivity model
In swiss albino mice
• By Omote et al. (1994)
• Sheep Red blood cell
suspension used for
immunization
In Guinea Pigs
• By Kamei et al. (1991)
• Injection of egg albumin
and Freund’s complete
adjuvant Subcutaneously
into foot pad
• Injection repeated 4 times at 7
days intervals . 10 days after
last immunization 0.2 ml of
2.5 % egg albumin injected the
intensity of arthrus reaction
calculated
5/8/2024 Reference = Drug Discovery And Evaluation by H. Gerhard Vogal 13
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Delayed Type Hypersensitivity model
Initially Rats are
sensitized by 0.5 ml
Ovalbumin by IM Route
After 7 Days Again 0.1 ml
of 0.04 % of Ovalbumin
injected in left hind paw
Footpad Thickness is
measured immediately
Sprague Dawley Rat
Body weight 150 –
230 mg
5/8/2024 Reference = Drug Discovery And Evaluation by H. Gerhard Vogal
14
15. Modifications of Delayed Type Hypersensitivity model
In Female CDF1 Mice
• By Mizukoshi et al.
(1994)
• They use Sheep red
blood cells for
Immunization
In swiss albino Mice
• By Kemei et. al (1991)
• Immunized mice by
applying 0.7 ml of 15 %
Picryl Chloride solution
to skin of the shaved
abdomen
5/8/2024 Reference = Drug Discovery And Evaluation by H. Gerhard Vogal 15
16. In–vitro SCREENING MODELS FOR
IMMUNOSUPPRESANTS
Inhibition of Histamine release from Mast
cells
Chemiluminescence in macrophages
5/8/2024 Reference = Drug Discovery And Evaluation by H. Gerhard Vogal 16
17. Inhibition of Histamine release from Mast cells
5/8/2024 Reference = Drug Discovery And Evaluation by H. Gerhard Vogal 17
•Preparation of Mast cell
suspension
• Wistar rats are Decapitated & exsanguinated
• 50ml of HBSS is injected into peritoneal cavity
• Peritoneal cells are collected in Centrifuge tube ,
centrifuged at 2000 rpm & Resuspended in
HBSS
•Test compound
Administration
• 1ml test drug is added to the mast cell suspension
• Mixture is incubated at 37oC for 15 mins
• 3 ml of Allergen is added with equal amount of
Calcium Ionophore.
18. Inhibition of Histamine release from Mast cells
5/8/2024 Reference = Drug Discovery And Evaluation by H. Gerhard Vogal 18
•Extraction of histamine
• 1ml of top layer test compound containing
300mg Nacl & 1.25 ml butanol
• The sample is alkanized to extract histamine into
butanol by adding 1ml of 3N NaoH
• Separation into aqueous and organic phases
•Induction of O-
phthalaldehyde complexing
reaction
• 0.1 ml 1N NaoH is added 0.1ml O-
phthalaldehyde solution
• then complexing reaction is stopped by using 3N
HCL
• Then Histamine is detected by Fluoroscence
detector at wavelength 350 and 450 nm
19. Chemiluminescence in Macrophages
Chemiluminescence is a chemical reaction that produces light without the
involvement of heat.
5/8/2024 Reference = Drug Discovery And Evaluation by H. Gerhard Vogal 19
1.Wistar rats are Decapitated & exsanguinated
Macrophages are obtained by flushing peritoneal cavity with 10
ml saline containing heparin 250 IU
1.0.1 ml of macrophage suspension and 0.1 ml of test compound
mixed together and incubated at 37oC for 15 mins
1.Then 0.1 ml of 3.5 µm Phorbolester solution is
added
1.Luminescence measured in the luminometer
1.The time of maximal count is recorded
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SUMMARY
• Immunosuppressant and their Mechanism of action
• Need of immunosuppressants
• In-vivo models, different animals , drugs in different
doses, molecules act as antigen
• In-vitro models, different methods by which we can
study antigen antibody reaction outside body
• Basic difference in in-vivo, in-vitro, ex-vivo, techniques
21. 5/8/2024 21
REFERENCE
1. Essential of Medical Pharmacology, by K.D. Tripathi. 2019. Jaypee The Health Sciences Publisher. New
Delhi, London, Panama, Eighth Edition, Page no. 937-945.
2. Drug Discovery and Evaluation Pharmacological Assays, by H. Gerhard Vogal. Springer publication.
Berlin, Heidelberg, New York, Barcelona, Hong Kong, London. Second Completely Revised and
Enlarged Edition, Page no. 788-805.
3. https://youtu.be/vWh1AJwAIg0?si=kexgn3DNrtlTnuff (Speed Pharmacology Youtube Channel)
4. Carvalho, V.F., Barreto, E.O., Diaz, B.L., Serra, M.F., Azevedo, V., Cordeiro, R.S., Martins, M.A. and e
Silva, P.M., 2003. Systemic anaphylaxis is prevented in alloxan-diabetic rats by a mechanism dependent
on glucocorticoids. European journal of pharmacology, 472(3), pp.221-227.
5. Baruah, C.C., Gupta, P.P., Nath, A., Patnaik, L.G. and Dhawan, B.N., 1998. Anti-allergic and anti-
anaphylactic activity of picroliv—a standardised iridoid glycoside fraction ofpicrorhiza
kurroa. Pharmacological research, 38(6), pp.487-492.
6. Naik, S.R., Bhagat, S., Shah, P.D., Tare, A.A., Ingawale, D. and Wadekar, R.R., 2013. Evaluation of
anti-allergic and anti-anaphylactic activity of ethanolic extract of Zizyphus jujuba fruits in
rodents. Revista Brasileira de Farmacognosia, 23(5), pp.811-818.