Vitamin D is a group of fat-soluble prohormones that are produced in the skin upon exposure to sunlight. The two major forms are vitamin D2 and vitamin D3. Vitamin D regulates calcium and phosphorus levels in the blood and promotes bone formation. Deficiency can cause rickets in children, characterized by soft and weak bones, and osteomalacia in adults. Rickets is treated with high doses of vitamin D orally or via injection to induce healing. Requirements are met by sunlight exposure or ingestion in foods like fortified milk. Too much vitamin D can cause hypercalcemia and symptoms like vomiting.
Pellagra is a disease caused by low levels of niacin, also known as vitamin B-3. It's marked by dementia, diarrhea, and dermatitis, also known as “the three Ds”. If left untreated, pellagra can be fatal.
There are two types of pellagra, known as primary pellagra and secondary pellagra.
Primary pellagra is caused by diets low in niacin or tryptophan
Secondary pellagra occurs when your body can’t absorb niacin
Pellagra is a disease caused by low levels of niacin, also known as vitamin B-3. It's marked by dementia, diarrhea, and dermatitis, also known as “the three Ds”. If left untreated, pellagra can be fatal.
There are two types of pellagra, known as primary pellagra and secondary pellagra.
Primary pellagra is caused by diets low in niacin or tryptophan
Secondary pellagra occurs when your body can’t absorb niacin
Vitamin A-intoduction, functions, sources, storage, WHO statistics, deficiency, treatment, prevention and control of deficiencies, Vit. A deficiency in India, assessment of Vit. A deficiency, recommended allowances, toxicity.
A decrease in red blood cells when the body can't absorb enough red blood cells.It is an organ specific autoimmune diseases in which the body’s immune system attacks the lining of the stomach.
It was considered as a deadly disease due to the lack of available treatment.
Pernicious anemia is most common in caucasian persons of north European ancestry than in other racial groups.
Vitamin A-intoduction, functions, sources, storage, WHO statistics, deficiency, treatment, prevention and control of deficiencies, Vit. A deficiency in India, assessment of Vit. A deficiency, recommended allowances, toxicity.
A decrease in red blood cells when the body can't absorb enough red blood cells.It is an organ specific autoimmune diseases in which the body’s immune system attacks the lining of the stomach.
It was considered as a deadly disease due to the lack of available treatment.
Pernicious anemia is most common in caucasian persons of north European ancestry than in other racial groups.
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.
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.
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.
Explore natural remedies for syphilis treatment in Singapore. Discover alternative therapies, herbal remedies, and lifestyle changes that may complement conventional treatments. Learn about holistic approaches to managing syphilis symptoms and supporting overall health.
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.
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
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
Ozempic: Preoperative Management of Patients on GLP-1 Receptor Agonists Saeid Safari
Preoperative Management of Patients on GLP-1 Receptor Agonists like Ozempic and Semiglutide
ASA GUIDELINE
NYSORA Guideline
2 Case Reports of Gastric Ultrasound
The prostate is an exocrine gland of the male mammalian reproductive system
It is a walnut-sized gland that forms part of the male reproductive system and is located in front of the rectum and just below the urinary bladder
Function is to store and secrete a clear, slightly alkaline fluid that constitutes 10-30% of the volume of the seminal fluid that along with the spermatozoa, constitutes semen
A healthy human prostate measures (4cm-vertical, by 3cm-horizontal, 2cm ant-post ).
It surrounds the urethra just below the urinary bladder. It has anterior, median, posterior and two lateral lobes
It’s work is regulated by androgens which are responsible for male sex characteristics
Generalised disease of the prostate due to hormonal derangement which leads to non malignant enlargement of the gland (increase in the number of epithelial cells and stromal tissue)to cause compression of the urethra leading to symptoms (LUTS
Title: Sense of Smell
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 primary categories of smells and the concept of odor blindness.
Explain the structure and location of the olfactory membrane and mucosa, including the types and roles of cells involved in olfaction.
Describe the pathway and mechanisms of olfactory signal transmission from the olfactory receptors to the brain.
Illustrate the biochemical cascade triggered by odorant binding to olfactory receptors, including the role of G-proteins and second messengers in generating an action potential.
Identify different types of olfactory disorders such as anosmia, hyposmia, hyperosmia, and dysosmia, including their potential causes.
Key Topics:
Olfactory Genes:
3% of the human genome accounts for olfactory genes.
400 genes for odorant receptors.
Olfactory Membrane:
Located in the superior part of the nasal cavity.
Medially: Folds downward along the superior septum.
Laterally: Folds over the superior turbinate and upper surface of the middle turbinate.
Total surface area: 5-10 square centimeters.
Olfactory Mucosa:
Olfactory Cells: Bipolar nerve cells derived from the CNS (100 million), with 4-25 olfactory cilia per cell.
Sustentacular Cells: Produce mucus and maintain ionic and molecular environment.
Basal Cells: Replace worn-out olfactory cells with an average lifespan of 1-2 months.
Bowman’s Gland: Secretes mucus.
Stimulation of Olfactory Cells:
Odorant dissolves in mucus and attaches to receptors on olfactory cilia.
Involves a cascade effect through G-proteins and second messengers, leading to depolarization and action potential generation in the olfactory nerve.
Quality of a Good Odorant:
Small (3-20 Carbon atoms), volatile, water-soluble, and lipid-soluble.
Facilitated by odorant-binding proteins in mucus.
Membrane Potential and Action Potential:
Resting membrane potential: -55mV.
Action potential frequency in the olfactory nerve increases with odorant strength.
Adaptation Towards the Sense of Smell:
Rapid adaptation within the first second, with further slow adaptation.
Psychological adaptation greater than receptor adaptation, involving feedback inhibition from the central nervous system.
Primary Sensations of Smell:
Camphoraceous, Musky, Floral, Pepperminty, Ethereal, Pungent, Putrid.
Odor Detection Threshold:
Examples: Hydrogen sulfide (0.0005 ppm), Methyl-mercaptan (0.002 ppm).
Some toxic substances are odorless at lethal concentrations.
Characteristics of Smell:
Odor blindness for single substances due to lack of appropriate receptor protein.
Behavioral and emotional influences of smell.
Transmission of Olfactory Signals:
From olfactory cells to glomeruli in the olfactory bulb, involving lateral inhibition.
Primitive, less old, and new olfactory systems with different path
2. Vitamin D is a
group of fat-soluble
prohormones.
Two
major forms of
which are vitamin D 2
(or ergocalciferol)
and vitamin D 3 (or
cholecalciferol).
Production is greatest in the
stratum basale and stratum Produced in skin
spinosum . exposed to sunlight,
specifically
3. Functions of Vitamin D
Regulates the calcium and phosphorus levels
in the blood by promoting their absorption
from food in the intestines.
Promotes bone formation and
mineralization .
Inhibits parathyroid hormone secretion
from the parathyroid gland.
Affects the immune system by promoting
immunosuppression, phagocytosis, and
anti-tumor activity
4. Dietary sources of
vitamin-D
Fortified foods especially
dairy products, cereals and
vit. Supplements.
Fish, liver, oils, egg yolk &
butter.
Infants: obtain vit D
supplement from mothers
milk, infant formulas, cow
milk .
5. Why Vitamin D deficiency
occurs?
Due to:-
Inadequate sunlight exposure.
Poor access to micronutrients rich
food.
Disorder that limit its absorption.
Deficient soil quality.
Impaired conversion into active
metabolites.
Possible role of dietary fibers.
6. These lead to:-
Learning disability
Impaired work capacity.
Increased susceptibility to infection
7. Deficiency causes:-
In children :-
RICKETS:- Bone softening diz., deformity
of long bones occur.
In adults :-
OSTEOMALACIA :- Bone thinning
disorder,proximal
muscle weakness & bone fragility.
OSTEOPOROSIS:-Decrease bone
minerilzation & inc. Bone fragility.
8. RICKETS:-
Rickets is characterized by
bone deformities
due to incomplete
mineralization, resulting
in soft & pliable bones and
delay in teeth
formation.
The weight bearing bones
are bent to form bow
legs
9. Risk factors
Breast-fed infants whose mothers are
not exposed to sunlight .
Breast-fed infants who are not exposed to
sunlight .
Lactose intolerant.
Individuals with red hair have a decreased
risk for rickets due to their greater
production of vitamin D in sunlight.
10. Pathogenesis of Rickets
Appears to develop in 3 stages:-
1 st stage Absence of adequate stores
In supply of 1,25 dihydroxy vit D
Intestinal absorption of Ca & P
Release of parathyroid hormone
1,25 (OH)2 vit D3
25(OH) vit D (in kidney)
Absorption of Ca & P Mobilization of Ca & P
from bone
12. 3 rd stage:-
Relative hyperparathyroidism
Depleted 25(OH) vit D
Impaired production of
Adequate quantity of 1,25(OH)2 vit D3
Intestinal absorption of Ca & P
13. Signs and Symptoms
Bone pain or tenderness.
muscle weakness ( rickety
myopathy or "floppy baby
syndrome")
syndrome
Increased tendency for
fractures (easily broken
bones), especially
greenstick fractures
Hypocalcemia
Tetany
Craniotabes (soft skull)
Skeletal deformity:Cranial,
spinal, and pelvic
14. Bowed legs (genu varum) Costochondral swelling
( "rickety rosary" or "rachitic
rosary")
Knock-knees (genu valgum) or
"windswept knees. Harison’s sulcus and pot belly
16. Treatment:-
Natural & artificial light are effective
therapeutically but oral administration
preferred.
Administration of 15,000ugm or 6,00,000
IU of vit.D 3 orally or I.M. induces rapid
healing.
If healing lines of rickets is not seen on x-
ray plate of bone within 3-4 weeks of
therapy, the above dose may be repeated .
Cases who respond to this therapy are further
put on 400 units or 10ugm of vitamin D 3 per
17. Requirement
Body needs are met entirely by
conversion of 7 dehydrocholesterol to
vit D 3 in skin
Or
in absence of exposure to UV light,
it can be met entirely by ingestion
of Vit D
The recommended dietary intake for
vit D by infants has been accepted
as 200IU/day
and children 400IU/day
18. Hypervitaminosis – D
Signs & symptoms - similar to idiopathic
hypercalcemia.
Symptoms include:-
Hypotonia, anorexia, irritability,
constipation,
polyuria, pallor
Aortic stenosis, vomiting
Hypertension
Retinopathy
Urine shows proteinuria
Metastatic calcification as revealed by x-
rays
Generalized osteoporosis
T/t includes discontinuation of vit D &
19. References :-
Essential Pediatrics by O . P . Ghai
Textbook of Preventive & social medicine by K .
Park
www.mc.vanderbilt.edu