This document discusses renal hormones and their functions. It describes the juxta-glomerular apparatus, which contains specialized cells that regulate renin secretion and the renin-angiotensin system. It also discusses how hormones like vitamin D and erythropoietin are synthesized and activated in the kidneys to regulate calcium homeostasis, red blood cell production, and other endocrine functions. The kidneys play a key role in endocrine and paracrine signaling through the production of hormones and local factors.
A TRIANGULAR GLAND, WHICH HAS BOTH EXOCRINE AND ENDOCRINE CELLS, LOCATED BEHIND THE STOMACHACINAR CELLS PRODUCE AN ENZYME-RICH JUICE USED FOR DIGESTION (EXOCRINE PRODUCT)PANCREATIC ISLETS (ISLETS OF LANGERHANS) PRODUCE HORMONES INVOLVED IN REGULATING FUEL STORAGE AND USE.
Structure and function of adrenal glandsMoses Kayungi
Structure and function of adrenal glands
• Anatomically, the adrenal glands (suprarenal) are located in the thoracic abdomen situated 'on' top of the kidneys one on each side, specifically on their anterosuperior aspect.
• They are surrounded by the adipose capsule and the renal fascia
• They consist of two parts,
The outer cortex
The inner medulla.
Adrenal Cortex
• The adrenal cortex is devoted to the synthesis of corticosteroid hormones from cholesterol.
It completes the hypothalamic-pituitary-adrenal axis
The source of cortisol and corticosterone hormones
• The cortex is divided into three zones, or layers.
• This division is sometimes referred to as ‘functional zonation”
Zona glomerulosa
Zona fasciculata
Zona reticularis
Adrenal Medulla
• The adrenal medulla is the core of the adrenal gland, and is surrounded by the adrenal cortex.
• The chromaffin cells of the medulla are the body's main source of the circulating catecholamines, adrenaline (epinephrine) and noradrenaline (norepinephrine
Blood supply to Adrenal Gland
• Although variations of the blood supply to the adrenal glands (and indeed the kidneys themselves) are common, there are usually three arteries that supply each adrenal gland:
The superior suprarenal artery is provided by the inferior phrenic artery.
The middle suprarenal artery is provided by the abdominal aorta.
The inferior suprarenal artery is provided by the renal artery
• Venous drainage of the adrenal glands is achieved via the suprarenal veins:
The right suprarenal vein drains into the inferior vena cava.
The left suprarenal vein drains into the left renal vein or the left inferior phrenic vein
A TRIANGULAR GLAND, WHICH HAS BOTH EXOCRINE AND ENDOCRINE CELLS, LOCATED BEHIND THE STOMACHACINAR CELLS PRODUCE AN ENZYME-RICH JUICE USED FOR DIGESTION (EXOCRINE PRODUCT)PANCREATIC ISLETS (ISLETS OF LANGERHANS) PRODUCE HORMONES INVOLVED IN REGULATING FUEL STORAGE AND USE.
Structure and function of adrenal glandsMoses Kayungi
Structure and function of adrenal glands
• Anatomically, the adrenal glands (suprarenal) are located in the thoracic abdomen situated 'on' top of the kidneys one on each side, specifically on their anterosuperior aspect.
• They are surrounded by the adipose capsule and the renal fascia
• They consist of two parts,
The outer cortex
The inner medulla.
Adrenal Cortex
• The adrenal cortex is devoted to the synthesis of corticosteroid hormones from cholesterol.
It completes the hypothalamic-pituitary-adrenal axis
The source of cortisol and corticosterone hormones
• The cortex is divided into three zones, or layers.
• This division is sometimes referred to as ‘functional zonation”
Zona glomerulosa
Zona fasciculata
Zona reticularis
Adrenal Medulla
• The adrenal medulla is the core of the adrenal gland, and is surrounded by the adrenal cortex.
• The chromaffin cells of the medulla are the body's main source of the circulating catecholamines, adrenaline (epinephrine) and noradrenaline (norepinephrine
Blood supply to Adrenal Gland
• Although variations of the blood supply to the adrenal glands (and indeed the kidneys themselves) are common, there are usually three arteries that supply each adrenal gland:
The superior suprarenal artery is provided by the inferior phrenic artery.
The middle suprarenal artery is provided by the abdominal aorta.
The inferior suprarenal artery is provided by the renal artery
• Venous drainage of the adrenal glands is achieved via the suprarenal veins:
The right suprarenal vein drains into the inferior vena cava.
The left suprarenal vein drains into the left renal vein or the left inferior phrenic vein
The details about the elimination of the drug from the body by various methods. drug metabolism, drug transformation, drug elimination process. factors affecting.
I am a medical student. I have one friend who is persuing his MBBS degree in Taishan Medical UNiversity. I got these notes from him.
These notes are by Dr. Bikesh, He is a famous lecturer of TMU.
These notes have helped me a lot and i also watch his lecture videos , which are great; highly simple and huge content.
I am uploading with Renal physiology. If you want some other topics i would upload for you.
"Let the Knowledge be spread" Dr. Bikesh
Acute scrotum is a general term referring to an emergency condition affecting the contents or the wall of the scrotum.
There are a number of conditions that present acutely, predominantly with pain and/or swelling
A careful and detailed history and examination, and in some cases, investigations allow differentiation between these diagnoses. A prompt diagnosis is essential as the patient may require urgent surgical intervention
Testicular torsion refers to twisting of the spermatic cord, causing ischaemia of the testicle.
Testicular torsion results from inadequate fixation of the testis to the tunica vaginalis producing ischemia from reduced arterial inflow and venous outflow obstruction.
The prevalence of testicular torsion in adult patients hospitalized with acute scrotal pain is approximately 25 to 50 percent
The details about the elimination of the drug from the body by various methods. drug metabolism, drug transformation, drug elimination process. factors affecting.
I am a medical student. I have one friend who is persuing his MBBS degree in Taishan Medical UNiversity. I got these notes from him.
These notes are by Dr. Bikesh, He is a famous lecturer of TMU.
These notes have helped me a lot and i also watch his lecture videos , which are great; highly simple and huge content.
I am uploading with Renal physiology. If you want some other topics i would upload for you.
"Let the Knowledge be spread" Dr. Bikesh
Acute scrotum is a general term referring to an emergency condition affecting the contents or the wall of the scrotum.
There are a number of conditions that present acutely, predominantly with pain and/or swelling
A careful and detailed history and examination, and in some cases, investigations allow differentiation between these diagnoses. A prompt diagnosis is essential as the patient may require urgent surgical intervention
Testicular torsion refers to twisting of the spermatic cord, causing ischaemia of the testicle.
Testicular torsion results from inadequate fixation of the testis to the tunica vaginalis producing ischemia from reduced arterial inflow and venous outflow obstruction.
The prevalence of testicular torsion in adult patients hospitalized with acute scrotal pain is approximately 25 to 50 percent
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
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.
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
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.
Follow us on: Pinterest
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
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
HOT NEW PRODUCT! BIG SALES FAST SHIPPING NOW FROM CHINA!! EU KU DB BK substit...GL Anaacs
Contact us if you are interested:
Email / Skype : kefaya1771@gmail.com
Threema: PXHY5PDH
New BATCH Ku !!! MUCH IN DEMAND FAST SALE EVERY BATCH HAPPY GOOD EFFECT BIG BATCH !
Contact me on Threema or skype to start big business!!
Hot-sale products:
NEW HOT EUTYLONE WHITE CRYSTAL!!
5cl-adba precursor (semi finished )
5cl-adba raw materials
ADBB precursor (semi finished )
ADBB raw materials
APVP powder
5fadb/4f-adb
Jwh018 / Jwh210
Eutylone crystal
Protonitazene (hydrochloride) CAS: 119276-01-6
Flubrotizolam CAS: 57801-95-3
Metonitazene CAS: 14680-51-4
Payment terms: Western Union,MoneyGram,Bitcoin or USDT.
Deliver Time: Usually 7-15days
Shipping method: FedEx, TNT, DHL,UPS etc.Our deliveries are 100% safe, fast, reliable and discreet.
Samples will be sent for your evaluation!If you are interested in, please contact me, let's talk details.
We specializes in exporting high quality Research chemical, medical intermediate, Pharmaceutical chemicals and so on. Products are exported to USA, Canada, France, Korea, Japan,Russia, Southeast Asia and other countries.
263778731218 Abortion Clinic /Pills In Harare ,sisternakatoto
263778731218 Abortion Clinic /Pills In Harare ,ABORTION WOMEN’S CLINIC +27730423979 IN women clinic we believe that every woman should be able to make choices in her pregnancy. Our job is to provide compassionate care, safety,affordable and confidential services. That’s why we have won the trust from all generations of women all over the world. we use non surgical method(Abortion pills) to terminate…Dr.LISA +27730423979women Clinic is committed to providing the highest quality of obstetrical and gynecological care to women of all ages. Our dedicated staff aim to treat each patient and her health concerns with compassion and respect.Our dedicated group ABORTION WOMEN’S CLINIC +27730423979 IN women clinic we believe that every woman should be able to make choices in her pregnancy. Our job is to provide compassionate care, safety,affordable and confidential services. That’s why we have won the trust from all generations of women all over the world. we use non surgical method(Abortion pills) to terminate…Dr.LISA +27730423979women Clinic is committed to providing the highest quality of obstetrical and gynecological care to women of all ages. Our dedicated staff aim to treat each patient and her health concerns with compassion and respect.Our dedicated group of receptionists, nurses, and physicians have worked together as a teamof receptionists, nurses, and physicians have worked together as a team wwww.lisywomensclinic.co.za/
3. INTRODUCTION
■ The kidney -- Essential role in the
maintenance of life in higher organisms
■ Regulation of the blood pressure and
body fluid homeostasis
■ Removal of wastes
■ As a major Endocrine organ.
5. TARGET ORGAN
■ The kidney serves as an
important endocrine target
organ for a number of
hormones
■ Controls the
extracellular fluid volume,
electrolyte balance
Acid-base balance
blood pressure.
■Angiotensin
■Aldosterone
■PTH
■ADH
6. “Local hormones,”
■ The kidney
is also a major organ
for the production
and action of various
“local hormones,” or
autocrine/paracrine
regulators
■ such as
Prostaglandins
(PGs),
Adrenomedullin
(AM)
Endothelins (ETs).
7. Renin Angiotensin System
(RAS)
■ Major component
of RAS is:
“Juxta-glomerular
Apparatus"
■ Collection of
specialised cells
located near to
glomerulus.
10. CHARACTERISTIC FEATURES
• They have well developed
Golgi appartus,
Endoplasmic reticulum,
abundunt mitochondria &
Ribosomes.
• Renin is stored in the secretory
granules of JG cells and, therefore,
these are also called Granular cells
11. TYPE OF RECEPTOR
■ Baroreceptors
(tension receptors)
■ Respond to changes in
the transmural
pressure gradient
between the afferent
arterioles and the
interstitium.
12. RESPONSE
■ Densely innervated by the sympathetic
nerve fibers and release their renin
content in response to the
Sympathetic discharge.
■ Vascular volume receptors(monitor renal
perfusion pressure)are stimulated by
hypovolaemia or decreased renal
perfusion pressure.
13. MACULA DENSA CELLS
■ Specialised renal
tubular epithelial cells
of a short segment of
the distal convoluted
tubule which passes
between the afferent
and efferent
arterioles.
14.
15. Characteristic features
■ They are not well adapted for reabsorption.
■ They are not innervated.
■ These cells are in direct contact with the
mesangial cells
■ and in close contact with the JG cells.
■ They act as chemoreceptors
■ Stimulated by decreased NaCl concentration
16. Mesangial cells.
■
■
■
■
Interstitial cells of the JG apparatus.
They are in contact with both the macula densa cells (on
one side) and JG cells (on the other side).
Relay the signals from
macula densa to the granular cells after modulating the
signals.
In this way, a decreased intraluminal Na+ load, Cl– load, or
both in the region of macula densa stimulates the JG cells
to secrete renin
18. GFR DEPENDS ON DIAMETERS OF
AFFERENT AND EFFERENT ARTERIOLES
↑GFR ↓GFR
Glomerulus
Afferent arteriole Efferent arteriole
Glomerular filtrate
Aff. Art. dilatation
Eff. Art. dilatation
Eff. Art.
constriction
Aff. Art.
constriction
Prostaglandins,
Kinins, Dopamine
(low dose), ANP,
NO
Angiotensin II
(low dose)
Angiotensin II
blockade
Ang II (high dose),
Noradrenaline (Symp
nerves), Endothelin,
ADH, Prost. Blockade)
19. AUTO REGULATION
■ Mechanism of Auto-regulation
1 Myogenic mechanism ( Respond to
change in arterial pressure).
2 Tubuloglomerular feedback
mechanism ( Respond to change in NaCl
concentration of tubular fluid.
21. NERVOUS REGULATION
■ Afferent & efferent arterioles– innervated by
sympathetic nerves from T4-L2 through
splanchnic nerves.
■ Normally sympathetic tone minimum.
■ Mild to moderate stimulation – mild effect.
■ Strong acute stimulation – Fall in RBF due to
constriction of both afferent & efferent arterioles.
22. KALLIKREINS – KININ SYSTEM
■ The kallikrein-kinin system consists of four
major components: kininogen,
■ kallikreins,
■ bradykinin
■ kininases
23.
24. 1,25- (OH)2 vitamin D3,
■ Final activation of vitamin D to the active
hormone calcitriol takes place in
the kidneys – 1-hydroxylation of
25- hydroxycholecalciferol
1,25- dihydroxycholecalciferol.
25.
26. Active vitamin D
■ Stimulates the small intestine for
protein synthesis allowing absorption
of Ca2+and phosphates.
■ Promotes renal reabsorption of Calcium
and Phosphorous.
■ This ensures the availability of
Ca2+and phosphate for bone growth.
Calcitriol simultaneously activates
osteoblasts to synthesize collagen.
27.
28. ERYTHROPOIETIN
■ Erythropoietin is a peptide hormone
which regulates Erythropoiesis.
■ Erythropoietin is
a Glycoprotein contai ning 165 amino
acids.
29. Actions
■ Receptors are present on the membranes
of red blood cell precursors.
■ Binding of the EPO reduces Apoptosis
of these cells – multiple cells survive
and can therefore complete their
development into mature erythrocytes.
30.
31. Synthesis and inactivation
■ In adults, approximately 90
erythropoietin synthesized
% of
in the
kidneys (interstitial cells)
Remaining amount in the liver (perivenous
hepatocytes) .
32. Synthesis and inactivation
■ The liver plays a key role in the production
of erythropoietin during the fetal period.
■ But in adulthood, the liver is no longer able
to compensate for a potential decrease in
production in the kidneys.
33. CLINICAL CORRELATIONS:
■ For most people in end-stage renal
failure, anemia with erythropoietin
deficiency occurs.
■ Doctors can administer recombinant
erythropoietin to these patients.
35. STIMULUS FOR
PRODUCTION.
■ Decrease in partial pressure of oxygen in
blood flowing through the organs.
■ Also supported by androgens &
catecholamines.