inflammatory bowel disease is a diagnosis of exclusion and it has two form known as crohn's disease which can affect all GI tract from ''gum to bum'' with skip lesion and the formation of cobblestones. ulcerative colitis affect only the colon and also causes proctitis and toxic megacolon. both of the disease has extraGI symptoms like sclerosing cholangitis, uveitis, ankylosing spondylitis,conjunctivitis, liver cirrhosis, pyoderma gangrenosum, arthropathy and althralgia, etc .
inflammatory bowel disease is a diagnosis of exclusion and it has two form known as crohn's disease which can affect all GI tract from ''gum to bum'' with skip lesion and the formation of cobblestones. ulcerative colitis affect only the colon and also causes proctitis and toxic megacolon. both of the disease has extraGI symptoms like sclerosing cholangitis, uveitis, ankylosing spondylitis,conjunctivitis, liver cirrhosis, pyoderma gangrenosum, arthropathy and althralgia, etc .
UC is an idiopathic IBD that affects the colonic mucosa.
Hallmark of UC is bloody diarrhea often with prominent symptoms of rectal urgency and tenesmus.
The clinical course is marked by exacerbations and remissions.
The diagnosis of UC is suspected on clinical grounds and supported by the appropriate findings on
Proctosigmoidoscopy or colonoscopy
Biopsy
By negative stool examination for infectious causes
• Coeliac disease is a genetically-determined chronic inflammatory intestinal disease induced by an environmental precipitant, gluten.
• Patients with the disease might have mainly non-gastrointestinal symptoms, and as a result patients present to various medical practitioners.
• Epidemiological studies have shown that coeliac disease is very common and affects about one in 250 people.
• The disease is associated with an increased rate of osteoporosis, autoimmune diseases, and malignant disease, especially lymphomas.
• The mechanism of the intestinal immune-mediated response is not completely clear, but involves an HLA-DQ2 or HLA-DQ8 restricted T-cell immune reaction in the lamina propria as well as an immune reaction in the intestinal epithelium.
UC is an idiopathic IBD that affects the colonic mucosa.
Hallmark of UC is bloody diarrhea often with prominent symptoms of rectal urgency and tenesmus.
The clinical course is marked by exacerbations and remissions.
The diagnosis of UC is suspected on clinical grounds and supported by the appropriate findings on
Proctosigmoidoscopy or colonoscopy
Biopsy
By negative stool examination for infectious causes
• Coeliac disease is a genetically-determined chronic inflammatory intestinal disease induced by an environmental precipitant, gluten.
• Patients with the disease might have mainly non-gastrointestinal symptoms, and as a result patients present to various medical practitioners.
• Epidemiological studies have shown that coeliac disease is very common and affects about one in 250 people.
• The disease is associated with an increased rate of osteoporosis, autoimmune diseases, and malignant disease, especially lymphomas.
• The mechanism of the intestinal immune-mediated response is not completely clear, but involves an HLA-DQ2 or HLA-DQ8 restricted T-cell immune reaction in the lamina propria as well as an immune reaction in the intestinal epithelium.
Crohn’s Forum is a community that is made entirely of people who are affected in some way by Crohn's Disease. In addition to being a great place for information and support from people who live with this disease, the forum has several special features:
-A support forum where users have the option to post anonymously to get some support or advice from other members
-Meet and communicate with others who are affected by Crohn's Disease all over the world!
Most people don’t like to talk about it, but having a gastrointestinal problem is common.
There’s no need to suffer in silence, though. Here’s a top-to-bottom look at nine of the most prevalent digestive conditions, symptoms, and the most effective treatments available. If you suspect you have one of these issues, don't delay speaking with a healthcare professional.
Crohn’s mostly affects the area in the gastrointestinal tract where the small intestines and large intestines meet, and causes a number of symptoms, including diarrhea, abdominal cramping, ulcers, blood in the stool, and weight loss.
5 Common Theories About What Causes Colitisalbertsnow
What causes colitis is still a matter of much debate within the traditional medical community. Colitis is an inflammatory swelling of the large intestine -- the colon. Here are 5 common theories about what causes colitis:
Stem Cell Therapy To Treat Crohn's Disease - Dr. David Greene R3 Stem CellR3 Stem Cell
Crohn's disease is a chronic, inflammatory condition of the digestive tract. In simple terms, it causes the intestines to become inflamed and swollen causing the large intestine to narrow and often twist under the weight of affected areas. Stem cell therapy could be a treatment option in this condition that provides hope to patients who wish to live a healthier life. In this presentation, Dr. David Greene R3 Stem Cell talks about stem cell therapy and how could it help in treating Crohn's disease.
Prix Galien International 2024 Forum ProgramLevi Shapiro
June 20, 2024, Prix Galien International and Jerusalem Ethics Forum in ROME. Detailed agenda including panels:
- ADVANCES IN CARDIOLOGY: A NEW PARADIGM IS COMING
- WOMEN’S HEALTH: FERTILITY PRESERVATION
- WHAT’S NEW IN THE TREATMENT OF INFECTIOUS,
ONCOLOGICAL AND INFLAMMATORY SKIN DISEASES?
- ARTIFICIAL INTELLIGENCE AND ETHICS
- GENE THERAPY
- BEYOND BORDERS: GLOBAL INITIATIVES FOR DEMOCRATIZING LIFE SCIENCE TECHNOLOGIES AND PROMOTING ACCESS TO HEALTHCARE
- ETHICAL CHALLENGES IN LIFE SCIENCES
- Prix Galien International Awards Ceremony
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.
MANAGEMENT OF ATRIOVENTRICULAR CONDUCTION BLOCK.pdfJim Jacob Roy
Cardiac conduction defects can occur due to various causes.
Atrioventricular conduction blocks ( AV blocks ) are classified into 3 types.
This document describes the acute management of AV block.
These simplified slides by Dr. Sidra Arshad present an overview of the non-respiratory functions of the respiratory tract.
Learning objectives:
1. Enlist the non-respiratory functions of the respiratory tract
2. Briefly explain how these functions are carried out
3. Discuss the significance of dead space
4. Differentiate between minute ventilation and alveolar ventilation
5. Describe the cough and sneeze reflexes
Study Resources:
1. Chapter 39, Guyton and Hall Textbook of Medical Physiology, 14th edition
2. Chapter 34, Ganong’s Review of Medical Physiology, 26th edition
3. Chapter 17, Human Physiology by Lauralee Sherwood, 9th edition
4. Non-respiratory functions of the lungs https://academic.oup.com/bjaed/article/13/3/98/278874
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
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
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.
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.
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
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.
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.
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
3. WHAT IS CROHN’S DISEASE ?
A chronic inflammatory disease of the gastrointestinal
tract. It primary causes ulceration in the large and
small intestines.
It usually affects the large and small intestines but can
occur anywhere in the GI tract from the mouth to the
anus.
3
4. NORMAL DIGESTIVE TRACT
Organs of the digestive tract
-Mouth
-Esophagus
-Stomach
-Small intestine
-Large intestine
-Rectum
-Anus
4
6. WHAT CAUSES CROHN’S DISEASE ?
The cause of Crohn’s Disease is unknown
Current Theories
-Immune system acting on its self
-Something in the environment
-Genes
6
7. WHO GET’S CROHN’S DISEASE?
500 thousand Americans have Crohn’s
20 to 25% have a blood relative with Crohn’s
Most people are diagnosed between the ages of 15 and
35, but can occur at any age
Affects males and females equally
Occurs in Caucasians more often than any other racial
group.
Found mainly in developed countries
Smoking also increases risk
7
8. Symptoms
Abdominal pain and cramping
Diarrhea
Fever
Weight Loss
Bloating
Anal pain or drainage
Rectal abscess
Fissure
8
9. OTHER SYMPTOMS
Symptoms outside the intestines
Eyes (redness and itching)
Mouth (sores)
Joints ( swelling and pain)
Skin ( bumps and other lesions)
Bones (osteoporosis)
Kidney (stones)
Liver (hepatitis and cirrhosis) rare
9
10. DIAGNOSIS
Family and personal history
Stool test
Blood test
Colonoscopy
CAT Scans
Barium X-rays
10
12. OTHER TREATMENTS
Diet and Nutrition
-Decrease in appetite
-Poor absorption of nutrients
Surgery
-Two-thirds of patients will require surgery
12
13. QUESTIONS
Can stress make Crohn’s Disease worse?
Is pregnancy safe for women with Crohn’s Disease?
Can Crohn’s cause cancer?
13
14. LIVING WITH CROHN’S
Crohn’s Disease is not curable but it is treatable.
Most people will have periods of remission
It’s import to follow you doctors advice
14
15. FINDING A CURE
Research
Crohn’s and Colitis Foundation
of America
15
16. References Cited
About Crohn’s Disease, Crohn’s and Colitis Foundation of America. 2 April 2010. http://ccfa.org/info/about/crohns
Cocker, Joe. “You Can Leave Your Hat On,” Super Hits, SONEY&BMG
Crohn’s Disease, MedicineNet.com.: 2 April 2010 http: www.medicinenet.com/crohns_disease/article.htm
Crohn’s Disease, National Institute of Heath, National Digestive Disease Information Clearing House: 2 April 2010
http://digestive.niddk,nih.gov/ddiseases/pub/crohns/
Crohn’s Info, Crohn’s Disease Info Center. Shafran Gastroenterology Center. 2 April
2010http://shafran.net/crohn/cdinfo.htm
Living with Crohn’s, N.p. :Crohn's and Colitis Foundation, March 2007
Normal and Diseased Colons, Online Image, 2 April 2010
http://sswahs.nse.gov.au/concord/gastr/BowelDisease/Crphn.html
http://www.medikidz.com
16
