This document discusses proteins and their importance for the human body. It notes that proteins are fundamental to cell structure and function, and serve as enzymes, hormones, and other important molecules. It also describes positive and negative nitrogen balance, which refers to the balance between nitrogen intake and output in the body. Positive nitrogen balance occurs during growth and recovery from illness, while negative nitrogen balance can lead to health issues and wasting of tissues. The document also evaluates different protein quality measures and provides protein content information for various foods.
Small amounts of vitamins are required in the diet to promote growth, reproduction, and health. Vitamins A, D, E, and K are called the fat-soluble vitamins, because they are soluble in organic solvents and are absorbed and transported in a manner similar to that of fats.
Small amounts of vitamins are required in the diet to promote growth, reproduction, and health. Vitamins A, D, E, and K are called the fat-soluble vitamins, because they are soluble in organic solvents and are absorbed and transported in a manner similar to that of fats.
Are most abundantly distributed organic compounds.
70 kg man= protein weight constitute 12 kg
Skeleton and connective tissue contains half
Body protein and other half is intracellular.
Chemistry of Vitamin E, Biochemical role of Vitamin E, Recommended dietary Allowances, Dietary sources of Vitamin E, Deficiency symptoms of vitamin E, Hypervitaminosis of vitamin E, Toxicity of Vitamin E,
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Are most abundantly distributed organic compounds.
70 kg man= protein weight constitute 12 kg
Skeleton and connective tissue contains half
Body protein and other half is intracellular.
Chemistry of Vitamin E, Biochemical role of Vitamin E, Recommended dietary Allowances, Dietary sources of Vitamin E, Deficiency symptoms of vitamin E, Hypervitaminosis of vitamin E, Toxicity of Vitamin E,
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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
Workout Routine
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.
Importance of Flexibility and Mobility
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
Couples presenting to the infertility clinic- Do they really have infertility...Sujoy Dasgupta
Dr Sujoy Dasgupta presented the study on "Couples presenting to the infertility clinic- Do they really have infertility? – The unexplored stories of non-consummation" in the 13th Congress of the Asia Pacific Initiative on Reproduction (ASPIRE 2024) at Manila on 24 May, 2024.
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.
Pulmonary Thromboembolism - etilogy, types, medical- Surgical and nursing man...VarunMahajani
Disruption of blood supply to lung alveoli due to blockage of one or more pulmonary blood vessels is called as Pulmonary thromboembolism. In this presentation we will discuss its causes, types and its management in depth.
These lecture slides, by Dr Sidra Arshad, offer a quick overview of physiological basis of a normal electrocardiogram.
Learning objectives:
1. Define an electrocardiogram (ECG) and electrocardiography
2. Describe how dipoles generated by the heart produce the waveforms of the ECG
3. Describe the components of a normal electrocardiogram of a typical bipolar leads (limb II)
4. Differentiate between intervals and segments
5. Enlist some common indications for obtaining an ECG
Study Resources:
1. Chapter 11, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 9, Human Physiology - From Cells to Systems, Lauralee Sherwood, 9th edition
3. Chapter 29, Ganong’s Review of Medical Physiology, 26th edition
4. Electrocardiogram, StatPearls - https://www.ncbi.nlm.nih.gov/books/NBK549803/
5. ECG in Medical Practice by ABM Abdullah, 4th edition
6. ECG Basics, http://www.nataliescasebook.com/tag/e-c-g-basics
micro teaching on communication m.sc nursing.pdfAnurag Sharma
Microteaching is a unique model of practice teaching. It is a viable instrument for the. desired change in the teaching behavior or the behavior potential which, in specified types of real. classroom situations, tends to facilitate the achievement of specified types of objectives.
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Knee anatomy and clinical tests 2024.pdfvimalpl1234
This includes all relevant anatomy and clinical tests compiled from standard textbooks, Campbell,netter etc..It is comprehensive and best suited for orthopaedicians and orthopaedic residents.
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
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NUTRITIONAL IMPORTANCE OF PROTEINS
1.
2. Proteins have been t regarded as 'body-
building foods.
10-15% of the total body energy is derived
from proteins.
3. Fundamental basis of cell structure & function.
All the enzymes, several hormones, transport
carriers, immunoglobulins etc., are proteins.
Involved in the maintenance of osmotic
pressure, clotting of blood, muscle contraction.
During starvation, proteins (amino acids) serve
as the major suppliers of energy.
4. Positive nitrogen balance:
This is a state in which the nitrogen intake is
higher than the output.
Some amount of nitrogen is retained in the
body causing a net increase in body protein.
Positive nitrogen balance is observed in
growing children, pregnant women or during
recovery after serious illness.
5. Negative nitrogen balance:
In this, the nitrogen output is higher than the
input.
Some amount of nitrogen is lost from the
body depleting the body protein.
Prolonged negative nitrogen balance may
even lead to death.
Observed in children suffering from
kwashiorkor or marasmus.
6. Negative nitrogen balance may occur due to
inadequate dietary intake of protein
(deficiency of a single essential amino acid) or
destruction of tissues or serious illness.
Growth hormone & insulin promote positive
nitrogen balance while corticosteroids result
in negative nitrogen balance.
Cancer & uncontrolled diabetes cause
negative nitrogen balance.
7. Protein efficiency ratio (PER)
Biological value (BV)
Net protein utilization (NPU)
Chemical score
8. PER is represented by gain in the weight of
rats per gram protein ingested.
Gain in body weight (g)
______________________
Protein ingested (g)
PER =
9. BV is defined as the percentage of absorbed
nitrogen retained by the body
Nitrogen retained
______________________ x100
Nitrogen absorbed
BV =
10. For the measurement of BV, the
experimental animals, namely weaning
albino rats are chosen.
They are first fed with a protein-free diet
for 10 days.
Then they are kept on a 10% protein diet to
be tested for BV.
Urine & feces are collected for both the
periods i.e. protein-free diet & protein diet.
11. Nitrogen is estimated in the diet, feces &
urine samples.
BV can be calculated by the following
formula:
(N absorbed – N lost in metabolism)
_____________________________________ x100
N absorbed
BV =
12. In= Nitrogen ingested
Fn= Nitrogen in feces (on protein diet)
Fc= Nitrogen in feces (on protein-free diet)
Un= Nitrogen in urine (on protein diet)
Uc= Nitrogen in urine (on protein-free diet)
[In-(Fn - Fc)] – (Un-Uc)
_____________________ x100
In – (Fn - Fc)
BV =
13. NPU is a better nutritional index than
biological value.
Net protein utilization can be calculated as:
Nitrogen retained
_____________________ x100
Nitrogen absorbed
NPU =
14. This is based on the chemical analysis of
protein for composition of essential amino
acids which is then compared with a reference
protein (egg protein).
The chemical score is defined as the ratio
between the quantity of the most limiting
essential amino acid in the test protein to the
quantity of the same amino acid in egg protein.
15. Mg of limiting amino acid/g test protein
______________________________________ x100
Mg of same amino acid/g egg protein
Chemical score =
17. The requirement of protein is dependent on
its nutritive value, caloric intake &
physiological states (growth, pregnancy
lactation) of individual.
For an adult, 0.8-1.0 g protein/kg body
weight/day is adequate.
The requirement is nearly double for growing
children, pregnant & lactating women.
18. The protein content of foods is variable,
Cereals have 6-12%; pulses 18-22%; meat 18-25%,
egg 10-14%; milk 3-4% and leafy vegetables 1-2%.
In general, the animal proteins are superior
than vegetable proteins as the dietary source.
19. The recommended dietary/daily allowances
(RDA) represents the quantities of the
nutrients to be provided in the diet daily for
maintaining good health & physical efficiency
of the body.
20. Sex:
The RDA for men is about 20% higher than
that of women.
Iron is an exception as the requirement is
greater in menstruating women.
Additional requirements (20-30% above
normal) are needed for pregnant & lactating
women.
21. Age:
In general, the nutrient requirement is much
higher in the growing age.
For instance, the protein requirement for a
growing child is about 2 g/kg body wt/day
compared to 1 g/kg body wt/day for adults.
22. Nutrients RDA
Carbohydrates 400 g
Fats 70 g
Proteins 56 g
Essential fatty acids 4 g
Vitamin A 1000 μg
Vitamin D 5 μg
Vitamin E 10 μg
Vitamin K 70 μg
Vitamin C 60 μg
B1 1.5 mg
B2 2 mg
B3 20mg
B6 2 mg
24. Balanced diet or prudent diet is defined as the
diet which contains different types of foods,
possessing the nutrients-carbohydrates, fats,
proteins, vitamins & minerals-in a proportion
to meet the requirements of the body.
Basic composition of balanced diet is highly
variable, as it differs from country to country,
depending on the availability of foods.
25. Social & cultural habits, the economic status,
age, sex & physical activity of the individual
largely influence the intake of diet.
The Indian balanced diet is composed of
cereals (rice, wheat), pulses, vegetables, roots &
tubers, fruits, milk & milk products, fats & oils,
sugar and groundnuts.
Meat, fish & eggs are present in the non-
vegetarian diets.
26. Protein-energy malnutrition (PEM)-sometimes
called protein-calorie malnutrition (PCM)- is the
most common nutritional disorder of the
developing countries.
It is prevalent in infants & pre-school children.
Kwashiorkor & marasmus are the two
extreme forms of protein-energy malnutrition
27. Kwashiorkor means sickness of the deposed
child i.e. a disease the child gets when the
next baby is born.
Occurrence and causes:
Kwashiorkor is predominantly found in
children between 1-5 years of age.
This is primarily due to insufficient intake of
proteins, as the diet of a weaning child
mainly consists of carbohydrates.
28. Clinical symptoms:
The clinical manifestations include stunted
growth, edema (particularly on legs & hands),
diarrhea, discoloration of hair & skin, anemia,
apathy & moonface.
Biochemical manifestations:
Decreased plasma albumin concentration (<2
g/dl against normal 3-4.5 g/dl), fatty liver,
deficiency of K+ due to diarrhea.
29. Edema occurs due to lack of adequate plasma
proteins to maintain water distribution
between blood & tissues.
Disturbances in the metabolism of protein,
carbohydrate & fat.
Several vitamin deficiencies occur.
Plasma retinol binding protein is reduced.
The immunological response of the child to
infection is very low.
30. Treatment:
Ingestion of protein-rich foods or the dietary
combinations to provide about 3-4 g of
protein/kg body weight/day will control
kwashiorkor.
The treatment can be monitored by measuring
plasma albumin concentration, disappearance
of edema & gain in body weight.
31. Marasmus literally means 'to waste'.
It mainly occurs in children under 1 year age.
Marasmus is predominantly due to the
deficiency of calories.
This is usually observed in children given
watery gruels (of cereals) to supplement the
mother's breast milk.
32. The symptoms of marasmus include growth
retardation, muscle wasting (emaciation),
anemia & weakness.
A marasmic child does not show edema or
decreased concentration of plasma albumin.
33. Microcytic anemia-most common, with reduced
RBC size.
Occurs due to the deficiency of iron, copper &
pyridoxine.
Macrocytic anemia-RBC are large & immature.
Mostly due to the deficiency of folic acid &
vitamin B12.
34. Normocytic anemia-Size of the RBC is
normal, but their quantity in blood is low.
Mostly found in protein-energy malnutrition.