This document summarizes key polysaccharides found in plants and animals. Plant polysaccharides include starch, a storage form found in seeds and grains, and fibers like cellulose which provide structure. Fibers promote gastrointestinal and cardiovascular health. Animal polysaccharides primarily consist of glycogen, the storage form found in liver and muscle tissue. Glycogen provides rapid glucose to working muscles through breakdown and resynthesis regulated by hormones like insulin and glucagon in response to blood sugar levels. The document recommends daily carbohydrate intake of 300-600 grams depending on physical activity level to serve as energy fuel.
Dietary fiber or roughage is the indigestible portion of food derived from plants. It has two main components: Soluble fiber, which dissolves in water, is readily fermented in the colon into gases and physiologically active byproducts, and can be prebiotic and viscous.
Food is necessary to normal life, and provides the body with energy
for its physiological functions. The oxidation of carbohydrates, lipids
and proteins leads to the generation of high energy bonds in ATP
(adenosine tri phosphate), the energy currency of the cell. In addition
some of these oxidative products are used to generate the
carbohydrates, lipids and proteins of which the body is composed.
Adequate diet
* It is the diet which is essential for normal growth ,
maintenance of life and reproduction.
* It must supply essential nutrients as vitamins, essential amino
acids and essential fatty acids.
* It must contain :-
1- Carbohydrates 2- Lipids
3- Proteins 4- Vitamins
5- Minerals 6- Water
Energy Requirements
The energy requirement for a 70-kg adult male is 2300- 3100 Kcal,
while it is 1600- 2400 kcal for a female
Dietary fiber or roughage is the indigestible portion of food derived from plants. It has two main components: Soluble fiber, which dissolves in water, is readily fermented in the colon into gases and physiologically active byproducts, and can be prebiotic and viscous.
Food is necessary to normal life, and provides the body with energy
for its physiological functions. The oxidation of carbohydrates, lipids
and proteins leads to the generation of high energy bonds in ATP
(adenosine tri phosphate), the energy currency of the cell. In addition
some of these oxidative products are used to generate the
carbohydrates, lipids and proteins of which the body is composed.
Adequate diet
* It is the diet which is essential for normal growth ,
maintenance of life and reproduction.
* It must supply essential nutrients as vitamins, essential amino
acids and essential fatty acids.
* It must contain :-
1- Carbohydrates 2- Lipids
3- Proteins 4- Vitamins
5- Minerals 6- Water
Energy Requirements
The energy requirement for a 70-kg adult male is 2300- 3100 Kcal,
while it is 1600- 2400 kcal for a female
It describes all the necessity of nutrition plus what nutrition includes and from which type of food u can get it.It also refers to deficiency diseses and diorders,
At the end of this lecture, the students should be able to:-
1. Differentiate simple carbohydrates and complex carbohydrate
2. Describe the function of carbohydrates in the body
3. Demonstrate knowledge of health with carbohydrates
INTRODUCTION
“Carbohydrates” When people hear this word
the first thing comes to their mind is “weight gain”. Many weight loss plans which captured the attention of public are designed with less carbs as a result more groups of people believe that carbohydrates are inherently bad.
Carbohydrates are the chief source of energy
Provide 40- 85% of food energy in different population
Used for oxidation of fates
Also for the synthesis of certain non-essential amino acid
OCCURRENCE
Carbohydrates get synthesized by plant through the process of photosynthesis .Each plant is a complex food factory that takes water from soil,carbon dioxide from the air and energy from the sun to make glucose, a simple sugar that later convert into starch.In animals it is stored as glycogen in the liver and muscles.
Starch and glycogen are stored in the form of polysaccharide. Carbohydrates also have a structural role ,particularly in cell membrane as a component of glycoprotien and glycolipids.
Every day we are eating something, so these food products giving energy to human body.
in that CHO is the primary source of energy. Carbohydrates are one of the three main classes of foods and a source of energy. Carbohydrates are mainly sugars and starches that the body breaks down into glucose (a simple sugar that the body can use to feed its cells).
It describes all the necessity of nutrition plus what nutrition includes and from which type of food u can get it.It also refers to deficiency diseses and diorders,
At the end of this lecture, the students should be able to:-
1. Differentiate simple carbohydrates and complex carbohydrate
2. Describe the function of carbohydrates in the body
3. Demonstrate knowledge of health with carbohydrates
INTRODUCTION
“Carbohydrates” When people hear this word
the first thing comes to their mind is “weight gain”. Many weight loss plans which captured the attention of public are designed with less carbs as a result more groups of people believe that carbohydrates are inherently bad.
Carbohydrates are the chief source of energy
Provide 40- 85% of food energy in different population
Used for oxidation of fates
Also for the synthesis of certain non-essential amino acid
OCCURRENCE
Carbohydrates get synthesized by plant through the process of photosynthesis .Each plant is a complex food factory that takes water from soil,carbon dioxide from the air and energy from the sun to make glucose, a simple sugar that later convert into starch.In animals it is stored as glycogen in the liver and muscles.
Starch and glycogen are stored in the form of polysaccharide. Carbohydrates also have a structural role ,particularly in cell membrane as a component of glycoprotien and glycolipids.
Every day we are eating something, so these food products giving energy to human body.
in that CHO is the primary source of energy. Carbohydrates are one of the three main classes of foods and a source of energy. Carbohydrates are mainly sugars and starches that the body breaks down into glucose (a simple sugar that the body can use to feed its cells).
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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
Ethanol (CH3CH2OH), or beverage alcohol, is a two-carbon alcohol
that is rapidly distributed in the body and brain. Ethanol alters many
neurochemical systems and has rewarding and addictive properties. It
is the oldest recreational drug and likely contributes to more morbidity,
mortality, and public health costs than all illicit drugs combined. The
5th edition of the Diagnostic and Statistical Manual of Mental Disorders
(DSM-5) integrates alcohol abuse and alcohol dependence into a single
disorder called alcohol use disorder (AUD), with mild, moderate,
and severe subclassifications (American Psychiatric Association, 2013).
In the DSM-5, all types of substance abuse and dependence have been
combined into a single substance use disorder (SUD) on a continuum
from mild to severe. A diagnosis of AUD requires that at least two of
the 11 DSM-5 behaviors be present within a 12-month period (mild
AUD: 2–3 criteria; moderate AUD: 4–5 criteria; severe AUD: 6–11 criteria).
The four main behavioral effects of AUD are impaired control over
drinking, negative social consequences, risky use, and altered physiological
effects (tolerance, withdrawal). This chapter presents an overview
of the prevalence and harmful consequences of AUD in the U.S.,
the systemic nature of the disease, neurocircuitry and stages of AUD,
comorbidities, fetal alcohol spectrum disorders, genetic risk factors, and
pharmacotherapies for AUD.
Report Back from SGO 2024: What’s the Latest in Cervical Cancer?bkling
Are you curious about what’s new in cervical cancer research or unsure what the findings mean? Join Dr. Emily Ko, a gynecologic oncologist at Penn Medicine, to learn about the latest updates from the Society of Gynecologic Oncology (SGO) 2024 Annual Meeting on Women’s Cancer. Dr. Ko will discuss what the research presented at the conference means for you and answer your questions about the new developments.
ARTIFICIAL INTELLIGENCE IN HEALTHCARE.pdfAnujkumaranit
Artificial intelligence (AI) refers to the simulation of human intelligence processes by machines, especially computer systems. It encompasses tasks such as learning, reasoning, problem-solving, perception, and language understanding. AI technologies are revolutionizing various fields, from healthcare to finance, by enabling machines to perform tasks that typically require human intelligence.
Lung Cancer: Artificial Intelligence, Synergetics, Complex System Analysis, S...Oleg Kshivets
RESULTS: Overall life span (LS) was 2252.1±1742.5 days and cumulative 5-year survival (5YS) reached 73.2%, 10 years – 64.8%, 20 years – 42.5%. 513 LCP lived more than 5 years (LS=3124.6±1525.6 days), 148 LCP – more than 10 years (LS=5054.4±1504.1 days).199 LCP died because of LC (LS=562.7±374.5 days). 5YS of LCP after bi/lobectomies was significantly superior in comparison with LCP after pneumonectomies (78.1% vs.63.7%, P=0.00001 by log-rank test). AT significantly improved 5YS (66.3% vs. 34.8%) (P=0.00000 by log-rank test) only for LCP with N1-2. Cox modeling displayed that 5YS of LCP significantly depended on: phase transition (PT) early-invasive LC in terms of synergetics, PT N0—N12, cell ratio factors (ratio between cancer cells- CC and blood cells subpopulations), G1-3, histology, glucose, AT, blood cell circuit, prothrombin index, heparin tolerance, recalcification time (P=0.000-0.038). Neural networks, genetic algorithm selection and bootstrap simulation revealed relationships between 5YS and PT early-invasive LC (rank=1), PT N0—N12 (rank=2), thrombocytes/CC (3), erythrocytes/CC (4), eosinophils/CC (5), healthy cells/CC (6), lymphocytes/CC (7), segmented neutrophils/CC (8), stick neutrophils/CC (9), monocytes/CC (10); leucocytes/CC (11). Correct prediction of 5YS was 100% by neural networks computing (area under ROC curve=1.0; error=0.0).
CONCLUSIONS: 5YS of LCP after radical procedures significantly depended on: 1) PT early-invasive cancer; 2) PT N0--N12; 3) cell ratio factors; 4) blood cell circuit; 5) biochemical factors; 6) hemostasis system; 7) AT; 8) LC characteristics; 9) LC cell dynamics; 10) surgery type: lobectomy/pneumonectomy; 11) anthropometric data. Optimal diagnosis and treatment strategies for LC are: 1) screening and early detection of LC; 2) availability of experienced thoracic surgeons because of complexity of radical procedures; 3) aggressive en block surgery and adequate lymph node dissection for completeness; 4) precise prediction; 5) adjuvant chemoimmunoradiotherapy for LCP with unfavorable prognosis.
Anti ulcer drugs and their Advance pharmacology ||
Anti-ulcer drugs are medications used to prevent and treat ulcers in the stomach and upper part of the small intestine (duodenal ulcers). These ulcers are often caused by an imbalance between stomach acid and the mucosal lining, which protects the stomach lining.
||Scope: Overview of various classes of anti-ulcer drugs, their mechanisms of action, indications, side effects, and clinical considerations.
2. Polysaccharides
The term polysaccharide is used when from three
to thousands of sugar molecules are linked together.
There are two classifications of polysaccharides;
plant and animal.
1- Plant Polysaccharides
a- Starch:
The storage form of carbohydrate in plants, is the
most familiar form of plant polysaccharide.
3. It is found in seeds, corn, and the various grains
from which bread, cereal, spaghetti, and pastries are
made
Large amounts are also present in peas,
beans, potatoes, and roots, where it serves as an
energy store for future use by plants.
4. b- Fibers :
is classified as a non-starch polysaccharide,
of which cellulose is the most abundant organic
molecule on earth.
Non-starch fibrous materials are resistant to
human digestive enzymes., although a portion
are fermented by intestinal bacteria and
ultimately used in metabolic reactions following
their intestinal absorption.
5.
6. • - Fibers are found exclusively in plants and
make up the structure of leaves, stems, roots,
seeds, and fruit coverings.
-The various fibers differ widely in physical and
chemical characteristics and in physiologic
action.
• -They are found mostly within the cell wall as
cellulose, pectin, and the non-carbohydrate
lignin.
7. Health Implications
- Fibers hold considerable water and thus give
"bulk" to the food residues in the small
intestine, often increasing stool weight and
volume by 40 to 100%.
- This bulking action may aid gastrointestinal
functioning by exerting a scraping action on the
cells of the gut wall, صنفرة
8. 1-by binding or diluting harmful chemicals or
inhibiting their activity and
2- by shortening the transit time for the passage
of food residues (and possibly carcinogenic
materials) through the digestive tract.
This may reduce the chances of contracting
colon cancer and various other gastrointestinal
diseases later in life.
9. - Fiber intake also may cause modest reductions
in serum cholesterol in humans ,especially the
water –soluble mucilaginous fibers such as
pectin and guar gum present in :
Oats , Beans , Brown Rice , Peas , Carrots,
and a variety of Fruits.
For men with elevated blood lipids, for example
adding 100 gm of Oat bran to the daily diet
…..13% reduction in serum cholesterol-
10. • Some types of fiber may actually hinder
cholesterol absorption, while others may
reduce cholesterol metabolism in the
gut.
• These actions would depress the
synthesis of cholesterol while at the
same time facilitating the excretion of
existing cholesterol bound to the fiber in
stools.
11. • Dietary fiber also slows the rate of
carbohydrate digestion …absorption of
carbohydrates more slowly…..control of
glucose metabolism and DM.
• Fiber decreases the total number of calories
that will be consumed in subsequent meals.
12. Importance of Fibers
•
High intake of fibers… Reduction of:
1- Obesity.
2- Diabetes Mellitus.
3- Constipation.
4- Hypercholesterolemia.
5- Colon Cancer.
6- Cardiovascular Disease.
7- Metabolic syndrome
Fibers…Antioxidants and Phytochemical properties.
14. II. Animal polysaccharide
Glycogen:
is the storage carbohydrate peculiar to
mammalian muscle and liver.
It is a large polysaccharide polymer
synthesized from glucose in the process of
glycogenesis and stored in the tissues of
animals.
15. - In well-nourished humans, approximately 375
to 475 gm of carbohydrate is stored in the body.
- Of this, approximately 325 g is muscle
glycogen (largest reserve),
- 90 to 110 g is liver glycogen (highest
concentration that represents between 3 to 7%
of the liver’s weight), and only about 5 g is
present as blood glucose. `
16. As each gram of glycogen contains 4 calories
of energy, the average person stores between
1500 and 2000 calories as carbohydrate.
This is approximately enough energy to power
a 20-mile run.
17. Several factors determine the rate and quantity
of breakdown and synthesis of glycogen
•
1- During Exercise:
-
Muscle glycogen is the major source of
carbohydrate energy for the active muscles in
which it is stored.
-
In the liver , in contrast, glycogen is
reconverted to glucose and transported in
blood for use by working muscles by the
process of glycogenolysis
18. Glycogenolysis provides a rapid extra
muscular supply of glucose for muscular
action.
When liver and muscle glycogen is depleted
through :
- dietary restriction or heavy exercise….
Glucose synthesis from structural
components of other nutrients , principally
proteins through the gluconeogenetic
pathways.
19. Hormones :
play an important role in regulating liver and
muscle glycogen stores by controlling the level
of circulating blood sugar.
When blood sugar level is elevated , the beta cells
of the pancreas secrete additional insulin and
the excess circulating glucose is taken up by the
cells ,which inhibits further insulin secretion.
20. In contrast , if blood falls below normal, the
opposing hormone of insulin…. Glucagon is
immediately secreted by alpha cells of the
pancreas to normalize the blood sugar level.
Glucagon hormone raises the blood glucose
level by stimulating both :
- Glycogenolysis and gluconeogenesis in the
liver.
21. Recommended Dietary Carbohydrate Intake
• The typical American diet includes between 40 and
50 % of its total calories as carbohydrates.
• For a sedentary 70-kg person , this amounts to
daily intake of about 300 gm of carbohydrates.
• For more physically active people and those
involved in exercise training, about 60% of daily
calories (400-600 gm) should be carbohydrates,
predominantly of the unrefined , fiber rich complex
variety in fruits
22. Role of carbohydrates in the body
• 1- Energy source… the main function of
carbohydrate is to serve as energy fuel
particularly during exercise.
• 2- Protein Sparing…
• 3- Metabolic primer..
• 4-Fuel for the CNS.