The document discusses blood cell production and erythropoiesis, the formation of red blood cells. It notes that red blood cells are produced in the red bone marrow at a baseline rate of about 20% of total capacity to maintain health. Approximately 2.4 million red blood cells must be replaced every second to make up for the 120-day lifespan of red blood cells. Prolonged oxygen depletion in the blood, like severe blood loss, anemia, clogged blood vessels, or low atmospheric oxygen, stimulates the kidneys to secrete erythropoietin, which targets the bone marrow and increases red blood cell production.
Hematology is the branch of medicine, that is concerned with the study of blood, blood forming organs and blood diseases. It includes study of etiology, diagnosis, treatment, prognosis and prevention of blood diseases .
After the completion of this presentation we will know about:
What is hematology and its purpose.
hematology laboratory.
Blood and its compositions and collections
Hematology lab equipment's
Some hematological tests , disease and hazards too.
bone marrow is viscus, highly vascular fluid which is present within the trabuculi of the spongy bones. all the blood cells are derived from this compartment. its structure, function are given in this presentation
Hematology is the branch of medicine, that is concerned with the study of blood, blood forming organs and blood diseases. It includes study of etiology, diagnosis, treatment, prognosis and prevention of blood diseases .
After the completion of this presentation we will know about:
What is hematology and its purpose.
hematology laboratory.
Blood and its compositions and collections
Hematology lab equipment's
Some hematological tests , disease and hazards too.
bone marrow is viscus, highly vascular fluid which is present within the trabuculi of the spongy bones. all the blood cells are derived from this compartment. its structure, function are given in this presentation
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Hematopoiesis: Origin and development of blood cellsVarun Singh
The process of hematopoiesis, its microenvironment and regulators. the process of erythropoiesis, myelopoiesis and megakaryopoiesis and their regulators with illustrated figures.
Blood is a body fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells. In vertebrates, it is composed of blood cells suspended in blood plasma.
Quick notes on Hematopoiesis and brief into about the types of cells are forming during the process.
For UG and PG students.
Different colors, themes and video is used to make it more interesting and easy to go through the contents.
Hematopoiesis is the process of blood cell production, differentiation, and development. hematopoeisis starts in yolk sac in the fetus and continued in he liver, spleen and bone marrow. In adult, hematopoeisis occurs in bone marrow.
Erythropoiesis is the process of RBC production. erythroproietin stimulate RBC production (initially CFU-E ) in response of hypoxia.
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For Health benefits and medicine videos Subscribe youtube channel - https://www.youtube.com/playlist?list=PLKg-H-sMh9G01zEg4YpndngXODW2bq92w
Hematopoiesis: Origin and development of blood cellsVarun Singh
The process of hematopoiesis, its microenvironment and regulators. the process of erythropoiesis, myelopoiesis and megakaryopoiesis and their regulators with illustrated figures.
Blood is a body fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells. In vertebrates, it is composed of blood cells suspended in blood plasma.
Quick notes on Hematopoiesis and brief into about the types of cells are forming during the process.
For UG and PG students.
Different colors, themes and video is used to make it more interesting and easy to go through the contents.
Hematopoiesis is the process of blood cell production, differentiation, and development. hematopoeisis starts in yolk sac in the fetus and continued in he liver, spleen and bone marrow. In adult, hematopoeisis occurs in bone marrow.
Erythropoiesis is the process of RBC production. erythroproietin stimulate RBC production (initially CFU-E ) in response of hypoxia.
Blood smear preparation, fixation, staining. Veterinary Clinical Examination ...Gansbaai SA
How to make a blood smear, including all steps: Preparation, fixation and staining. Veterinary clinical Examination for small and large animals. Methanol - Fixation. Additionaly basic information about blood.
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
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.
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
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
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.
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.
New Directions in Targeted Therapeutic Approaches for Older Adults With Mantl...i3 Health
i3 Health is pleased to make the speaker slides from this activity available for use as a non-accredited self-study or teaching resource.
This slide deck presented by Dr. Kami Maddocks, Professor-Clinical in the Division of Hematology and
Associate Division Director for Ambulatory Operations
The Ohio State University Comprehensive Cancer Center, will provide insight into new directions in targeted therapeutic approaches for older adults with mantle cell lymphoma.
STATEMENT OF NEED
Mantle cell lymphoma (MCL) is a rare, aggressive B-cell non-Hodgkin lymphoma (NHL) accounting for 5% to 7% of all lymphomas. Its prognosis ranges from indolent disease that does not require treatment for years to very aggressive disease, which is associated with poor survival (Silkenstedt et al, 2021). Typically, MCL is diagnosed at advanced stage and in older patients who cannot tolerate intensive therapy (NCCN, 2022). Although recent advances have slightly increased remission rates, recurrence and relapse remain very common, leading to a median overall survival between 3 and 6 years (LLS, 2021). Though there are several effective options, progress is still needed towards establishing an accepted frontline approach for MCL (Castellino et al, 2022). Treatment selection and management of MCL are complicated by the heterogeneity of prognosis, advanced age and comorbidities of patients, and lack of an established standard approach for treatment, making it vital that clinicians be familiar with the latest research and advances in this area. In this activity chaired by Michael Wang, MD, Professor in the Department of Lymphoma & Myeloma at MD Anderson Cancer Center, expert faculty will discuss prognostic factors informing treatment, the promising results of recent trials in new therapeutic approaches, and the implications of treatment resistance in therapeutic selection for MCL.
Target Audience
Hematology/oncology fellows, attending faculty, and other health care professionals involved in the treatment of patients with mantle cell lymphoma (MCL).
Learning Objectives
1.) Identify clinical and biological prognostic factors that can guide treatment decision making for older adults with MCL
2.) Evaluate emerging data on targeted therapeutic approaches for treatment-naive and relapsed/refractory MCL and their applicability to older adults
3.) Assess mechanisms of resistance to targeted therapies for MCL and their implications for treatment selection
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.
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.
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
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
2. The formation of blood or all types of blood cells in the living body. in red bone marrow in lymph tissue Hematopoiesis -
3. Erythropoiesis - The formation or production of red blood cells only. Your baseline production of red blood cells represents about 20% of your total capacity and is the amount of production that normally occurs just to keep you healthy. erythrocyte Red blood cell or erythrocyte Note the loss of the nucleus
4. Facts: 1. 25 trillion r.b.c. per person 2. r.b.c. live ~ 120 days What are we trying to find? Question: Answer: r.b.c./sec (r.b.c. per second) So, how many red blood cells die and must be replaced each second in your body? How can this be done?
5. That’s right ladies and gentlemen. You guessed it!! It’s a Math Problem!!! Yeah!!!! Additionally needed facts: (things you already know) 3. 1 day = 24 hours 4. 1 hour = 60 minutes 5. 1 minute = 60 seconds Let’s begin!!
6. 25 trillion = 25,000,000,000,000 = 2.5 x 10 13 1 2 3 4 5 6 7 8 9 10 11 12 13 How can this number be converted to scientific notation? 2.5 x 10 13 r.b.c. x 120 days 1 day x 24 hrs 1 hr x 60 min 1 min = 60 sec Now remember your basic algebra! (We called it “conversion factor” math in Chemistry!) 2.4 x 10 6 r.b.c. or 2,400,000 r.b.c. or 2.4 million r.b.c. 2.5 x 10 13 r.b.c. x 120 days 1 day x 24 hrs 1 hr x 60 min 1 min = 60 sec
7. After birth, erythropoiesis takes place in the red bone marrow in the ends of some long bones such as the femur and humerus , and in the red marrow of the ribs , vertebrae , sternum , pelvic girdle, and portions of the skull . The need for new red blood cell production is monitored by receptor sites for blood oxygen concentration located in the kidneys (and some in the liver).
8. Erythropoietin targets the red bone marrow and stimulates the production of red blood cells. The more hormone, the more red blood cells made. The production of red blood cells will continue until the production of erythropoietin stops. Any drop in the oxygen content of the blood will cause the kidney to secrete an enzyme that acts on a non-nutrient plasma protein to for a key hormone called erythropoietin .
9. 1. Severe blood loss – greater than 20% of blood volume. This results in fewer r.b.c. to carry oxygen. A “normal” cell count (hematocrit) can be restored in 3 to 4 weeks. 2. Anemia – this is a deficiency in the oxygen-carrying component of the blood, measured in the unit volume concentrations of hemoglobin, red blood cell volume, or red blood cell number. Over 400 different types of anemia are known. Most are rare, all are important so here they all are: Causes of prolonged oxygen depletion in blood are: (reasons for erythropoietin to be produced)
10. Here are a few of the more common and important: Just Kidding!!
11. 2. Aplastic anemia – A form of anemia in which the capacity of the bone marrow to generate red blood cells is defective, caused by bone marrow disease or exposure to toxic agents, such as radiation, industrial chemicals, or drugs (such as chemotherapy drugs). Iron deficiency anemia – A form of hypochromic anemia due to a lack of sufficient iron in one’s diet. hemorrhagic anemia – A form of hypochromic anemia due to a loss of iron from chronic bleeding . 1. Hypochromic anemia – A form of anemia characterized by a decrease in the concentration of corpuscular (r.b.c.) hemoglobin.
12. 3. Megaloblastic anemia – A form of anemia characterized by many large, immature and dysfunctional erythrocytes (megaloblasts) resulting from a deficiency of vitamin B 12 and/or folic acid. Pernicious anemia – A type of anemia caused when antibodies are directed against parietal cells in the gastric glands of the stomach which produce intrinsic factor . Intrinsic factor is required for vitamin B 12 absorption, so impaired absorption of vitamin B 12 can result. This is more commonly found in older adults.
13. 4. Hemolytic anemia – a form of anemia resulting from the destruction of red blood cells due to abnormally high fragility caused by certain infectious agents and in certain inherited blood disorders. Thalassemia (Cooley’s anemia) – A genetic defect that results in synthesis of an abnormal hemoglobin molecule. The blood cells are vulnerable to mechanical injury and die easily. Sickle cell anemia – A chronic, often fatal inherited anemia resulting in abnormal hemoglobin which causes characteristic crescent-shaped red blood cells that can easily rupture.
14. 1. Severe blood loss 2. Anemia 3. Clogging of blood vessels – this reduces the blood flow to areas of the body and cuts the amount of oxygen per unit time. Reviewing the first two: Continued: Causes of prolonged oxygen depletion in blood continued: (reasons for erythropoietin to be produced)
15. 4. Reduction in atmospheric oxygen – moving to a high altitude region produces an increase in red blood cell production because there is less oxygen in the air. This is a form of natural blood “doping”. Artificial blood doping can be achieved by taking drugs that stimulate red blood cell production and are currently banned by all major sporting organizations.
16. In summary: 1. Severe blood loss 2. Anemia 3. Clogging of blood vessels 4. Reduction in atmospheric oxygen Causes of prolonged oxygen depletion in blood are: (reasons for erythropoietin to be produced)