-
How steroid hormones work at the molecular level?
this video explains the mode of action of steroid hormone taking the example of Estrogen and its physiological role in developing secondary sexual characters in females.
published: 22 Mar 2020
-
Synthesis of steroid hormones
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published: 13 Jun 2019
-
Mechanism of STEROID HORMONE action
Mechanism of STEROID HORMONE action :
Receptors for steroid and thyroid hormones are located inside target cells, in the cytoplasm or nucleus, and function as ligand-dependent transcription factors. That is to say, the hormone-receptor complex binds to promoter regions of responsive genes and stimulate or sometimes inhibit transcription from those genes.
Watch another video on topic Biology - Cell Structure : http://bit.ly/2gndhjG
Video Courtesy : https://www.facebook.com/uzairyousaff
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published: 28 Nov 2016
-
Steroid hormone synthesis pathway | Adrenal gland hormones | Endocrine system lecture mbbs 1st year
Buy concept based physiology notes here:
Download
Android app for Physiology notes here: https://play.google.com/store/apps/details?id=co.rogers.ezlep
IOS app: https://apps.apple.com/in/app/myinstitute/id1472483563 (use org code:ezlep)
Website: http://www.physiologyopen.com/
Lecture on steps and enzymes in the synthesis of adrenal steroid hormones
Learn how various enzymes are involved in the synthesis of glucocorticoids, mineralocorticoids and adrenal androgens
Also watch
GI physiology: https://www.youtube.com/playlist?list=PLnt1wzLU3qo1RKSY-PMHRp7cfbrCqZyw_
Sensory physiology playlist: https://www.youtube.com/playlist?list=PLnt1wzLU3qo3m74f5LF02-vzia_rm3IbG
Special senses Physiology: https://www.youtube.com/playlist?list=PLnt1wzLU3qo0yv8sPFbLy_U-fFWMvhKEx
CNS physiology: https...
published: 30 May 2021
-
Synthesis of Steroid Hormones | Biosynthesis | Dr Najeeb👨⚕️
#biology #biosynthesis #steroids #steroid #drnajeeb #phyology
Synthesis of Steroid Hormones | Biosynthesis | Dr Najeeb👨⚕️
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published: 12 Feb 2023
-
Steroid hormone mechanism of entry
This hormone lecture explains the mechanism of entry and mode of action of steroid hormone inside cell.
For more information, log on to-
http://shomusbiology.weebly.com/
Download the study materials here-
http://shomusbiology.weebly.com/bio-materials.html
Question source - www.indiabix.com
published: 02 Oct 2014
-
The Endocrine System, Overview, Animation
(USMLE topics) Function of the endocrine system, mechanism of action of steroid and nonsteroid hormones, major endocrine organs, functions and negative feedback control. Purchase PDF (script of this video + images) here: https://www.alilamedicalmedia.com/-/galleries/pdf-video-scripts-with-images/a-p-basics/-/medias/15d7e78b-6632-4d17-8d86-0788680a5b71-endocrine-system-overview-3-pages-7-images
This video and other related videos (in HD) are available for instant download licensing here: https://www.alilamedicalmedia.com/-/galleries/narrated-videos-by-topics/endocrinology-basics
©Alila Medical Media. All rights reserved.
Voice by Ashley Fleming
Support us on Patreon and get FREE downloads and other great rewards: patreon.com/AlilaMedicalMedia/posts
All images/videos by Alila Medical Media ...
published: 05 Nov 2018
-
Endocrine 4- Steroid hormones
Part 4 in a 8 part lecture on ENDOCRINE SYSTEM in a flipped Human Physiology course taught by Wendy Riggs. CC-BY. Watch the whole lecture (all 8 videos) by going to the PLAYLIST: http://www.youtube.com/playlist?list=PL5GRRRmaGVqWVsBVEz3vTnU5IN_Er7Xgr
published: 25 Jan 2015
-
Synthesis of steroid hormone part 1 | steroid hormone synthesis in Urdu/Hindi | 2020
Here is My New Video . Hit Like ,Subscribe and Hit The Bell Icon For More Videos
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published: 23 Apr 2020
-
Signaling pathway of steroid hormones
We're pleased to resume our Express Video of the Week series with a hormonal hit from the Endocrine section of First Aid. In this video, Arjun Iyer tackles the signaling pathway of steroid hormones.
As one USMLE-Rx subscriber commented, "Arjun just made the signaling pathways topic suuuuuuuper easy to remember with his 7 rules #legend"
Start a free trial at www.usmle-rx.com and view any of our high-yield videos, which help you understand every fact in First Aid for the USMLE Step 1.
published: 12 Jan 2019
8:16
How steroid hormones work at the molecular level?
this video explains the mode of action of steroid hormone taking the example of Estrogen and its physiological role in developing secondary sexual characters in...
this video explains the mode of action of steroid hormone taking the example of Estrogen and its physiological role in developing secondary sexual characters in females.
https://wn.com/How_Steroid_Hormones_Work_At_The_Molecular_Level
this video explains the mode of action of steroid hormone taking the example of Estrogen and its physiological role in developing secondary sexual characters in females.
- published: 22 Mar 2020
- views: 59174
14:57
Synthesis of steroid hormones
Donate here: http://www.aklectures.com/donate.php
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- published: 13 Jun 2019
- views: 81206
1:27
Mechanism of STEROID HORMONE action
Mechanism of STEROID HORMONE action :
Receptors for steroid and thyroid hormones are located inside target cells, in the cytoplasm or nucleus, and function as ...
Mechanism of STEROID HORMONE action :
Receptors for steroid and thyroid hormones are located inside target cells, in the cytoplasm or nucleus, and function as ligand-dependent transcription factors. That is to say, the hormone-receptor complex binds to promoter regions of responsive genes and stimulate or sometimes inhibit transcription from those genes.
Watch another video on topic Biology - Cell Structure : http://bit.ly/2gndhjG
Video Courtesy : https://www.facebook.com/uzairyousaff
About us :
Providing easy solutions to NEET / JEE (Mains & Advanced) and all state level exams like MHT-CET, EAMCET, KCET, Guj CET etc. Aspirants,Coaching Classes and Colleges.
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https://wn.com/Mechanism_Of_Steroid_Hormone_Action
Mechanism of STEROID HORMONE action :
Receptors for steroid and thyroid hormones are located inside target cells, in the cytoplasm or nucleus, and function as ligand-dependent transcription factors. That is to say, the hormone-receptor complex binds to promoter regions of responsive genes and stimulate or sometimes inhibit transcription from those genes.
Watch another video on topic Biology - Cell Structure : http://bit.ly/2gndhjG
Video Courtesy : https://www.facebook.com/uzairyousaff
About us :
Providing easy solutions to NEET / JEE (Mains & Advanced) and all state level exams like MHT-CET, EAMCET, KCET, Guj CET etc. Aspirants,Coaching Classes and Colleges.
Are You Preapare for NEET ?
Then Nothing is Better than #Kosh_Edutech_Study_Software
- More than 1,00,000 MCQs with Answer Key, Hints and Solutions..
- Awarded By Over 1000 Coaching Classes and Colleges.
- Student software having unlimited Read MCQs / Practice MCQs / Solve Test / Review Test / Resolve Test / get Complete
Analysis of Performance.
- Student software solutions available in Pen Drive and Memory Card.
also available in Windows Tablet / Computers / Laptop - Windows 7 and above.
#Call us For Online Demo : 09561870300
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Buy Online from Here :
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- published: 28 Nov 2016
- views: 198295
7:06
Steroid hormone synthesis pathway | Adrenal gland hormones | Endocrine system lecture mbbs 1st year
Buy concept based physiology notes here:
Download
Android app for Physiology notes here: https://play.google.com/store/apps/details?id=co.rogers.ezlep
IOS ap...
Buy concept based physiology notes here:
Download
Android app for Physiology notes here: https://play.google.com/store/apps/details?id=co.rogers.ezlep
IOS app: https://apps.apple.com/in/app/myinstitute/id1472483563 (use org code:ezlep)
Website: http://www.physiologyopen.com/
Lecture on steps and enzymes in the synthesis of adrenal steroid hormones
Learn how various enzymes are involved in the synthesis of glucocorticoids, mineralocorticoids and adrenal androgens
Also watch
GI physiology: https://www.youtube.com/playlist?list=PLnt1wzLU3qo1RKSY-PMHRp7cfbrCqZyw_
Sensory physiology playlist: https://www.youtube.com/playlist?list=PLnt1wzLU3qo3m74f5LF02-vzia_rm3IbG
Special senses Physiology: https://www.youtube.com/playlist?list=PLnt1wzLU3qo0yv8sPFbLy_U-fFWMvhKEx
CNS physiology: https://www.youtube.com/playlist?list=PLnt1wzLU3qo0IcMJ1NoSeSUbmDP_2SI5Q
Cardiovascular physiology: https://www.youtube.com/playlist?list=PLnt1wzLU3qo0eermxPoryUXjaqWeQPXY5
Respiratory physiology: https://www.youtube.com/playlist?list=PLnt1wzLU3qo1cZcW2ZkTzNcQGa2wsjqgW
General Physiology: https://www.youtube.com/playlist?list=PLnt1wzLU3qo3dyEpnggfN8QOZDNkdL-_H
Blood physiology: https://www.youtube.com/playlist?list=PLnt1wzLU3qo0bP71xQEMSNRn2p7MGVemk
Renal Physiology: https://www.youtube.com/playlist?list=PLnt1wzLU3qo3Kg3efNjh79y6iY6zBVEG0
Endocrine physiology: https://www.youtube.com/playlist?list=PLnt1wzLU3qo3KQJnYjcAK6hCuBedjisim
Gastric secretion: https://www.youtube.com/playlist?list=PLnt1wzLU3qo2NtOVJZHXXXtpPAxbI4AWT
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#physiology
#1styearMBBS
#MBBS1styear
#physiologyopen
#physiologytheory
#endocrinephysiology
#physiologylectures
#endocrinesystem
https://wn.com/Steroid_Hormone_Synthesis_Pathway_|_Adrenal_Gland_Hormones_|_Endocrine_System_Lecture_Mbbs_1St_Year
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IOS app: https://apps.apple.com/in/app/myinstitute/id1472483563 (use org code:ezlep)
Website: http://www.physiologyopen.com/
Lecture on steps and enzymes in the synthesis of adrenal steroid hormones
Learn how various enzymes are involved in the synthesis of glucocorticoids, mineralocorticoids and adrenal androgens
Also watch
GI physiology: https://www.youtube.com/playlist?list=PLnt1wzLU3qo1RKSY-PMHRp7cfbrCqZyw_
Sensory physiology playlist: https://www.youtube.com/playlist?list=PLnt1wzLU3qo3m74f5LF02-vzia_rm3IbG
Special senses Physiology: https://www.youtube.com/playlist?list=PLnt1wzLU3qo0yv8sPFbLy_U-fFWMvhKEx
CNS physiology: https://www.youtube.com/playlist?list=PLnt1wzLU3qo0IcMJ1NoSeSUbmDP_2SI5Q
Cardiovascular physiology: https://www.youtube.com/playlist?list=PLnt1wzLU3qo0eermxPoryUXjaqWeQPXY5
Respiratory physiology: https://www.youtube.com/playlist?list=PLnt1wzLU3qo1cZcW2ZkTzNcQGa2wsjqgW
General Physiology: https://www.youtube.com/playlist?list=PLnt1wzLU3qo3dyEpnggfN8QOZDNkdL-_H
Blood physiology: https://www.youtube.com/playlist?list=PLnt1wzLU3qo0bP71xQEMSNRn2p7MGVemk
Renal Physiology: https://www.youtube.com/playlist?list=PLnt1wzLU3qo3Kg3efNjh79y6iY6zBVEG0
Endocrine physiology: https://www.youtube.com/playlist?list=PLnt1wzLU3qo3KQJnYjcAK6hCuBedjisim
Gastric secretion: https://www.youtube.com/playlist?list=PLnt1wzLU3qo2NtOVJZHXXXtpPAxbI4AWT
Buy our Practical Physiology book here:
Amazon: https://www.amazon.in/Practical-Physiology-MBBS-OSPE-Examination/dp/9386480808
Flipkart: https://www.flipkart.com/practical-physiology-mbbs-objectively-structured-examination-ospe-per-revised-mci-curriculum/p/itme81715e9ff7d2
#physiology
#1styearMBBS
#MBBS1styear
#physiologyopen
#physiologytheory
#endocrinephysiology
#physiologylectures
#endocrinesystem
- published: 30 May 2021
- views: 40437
2:17:52
Synthesis of Steroid Hormones | Biosynthesis | Dr Najeeb👨⚕️
#biology #biosynthesis #steroids #steroid #drnajeeb #phyology
Synthesis of Steroid Hormones | Biosynthesis | Dr Najeeb👨⚕️
Like this video? Sign up now on ou...
#biology #biosynthesis #steroids #steroid #drnajeeb #phyology
Synthesis of Steroid Hormones | Biosynthesis | Dr Najeeb👨⚕️
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---------------------------------------------------------------------------------------------------------------------------
▬▬▬▬▬▬▬▬▬▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬
00:00:00 Synthesis Of Steroid Hormones
00:00:46 Derivation Of Steroid Hormone And Cholesterol Functions
00:02:03 Progesterone
00:03:38 Aldosterone
00:05:12 Glucocorticoids
00:05:40 Testosterone And Estrogen
00:06:30 Active Vitamin D3
00:08:20 Structure Of Cholesterol Molecule
00:16:40 Pathways
00:21:00 Androgen Pathway
00:26:15 Further Explanation Of Pathways
00:30:33 Histology And Functions Of Adrenal Gland
00:36:48 Cellular Changes Related To Cholesterol Molecule
00:40:00 Effect Of ACTH And Desmolase Enzyme
00:45:00 Dehydrogenase Enzyme Role
00:48:47 Three Pathways From Progesterone
00:51:35 Q&A
00:52:20 Difference Between Pathways And Their Mechanisms
01:13:50 Testosterone Pathway
01:27:00 Androgens Pathway In Females
01:29:00 Ketoconazole Effect On Desmolase
01:29:50 Revision Of Hydroxylations
01:30:31 What Is Hydroxylation Reactions And Enzymes Involved In It
01:38:26 Clinical Corelates With Synthesis Of Hormones
01:40:00 Deficiency Of 17 Alpha Hydroxylase
01:56:50 Deficiency Of 21 Beta Hydroxylase
01:59:34 Congenital Adrenal Hyperplasia
02:13:15 Deficiency Of DHT
02:16:23 Effect Of Licorice
---------------------------------------------------------------------------------------------------------------------------
Steroid hormone, any of a group of hormones that belong to the class of chemical compounds known as steroids; they are secreted by three “steroid glands”—the adrenal cortex, testes, and ovaries—and during pregnancy by the placenta. All steroid hormones are derived from cholesterol. They are transported through the bloodstream to the cells of various target organs where they carry out the regulation of a wide range of physiological functions.
These hormones often are classified according to the organs that synthesize them: the adrenal steroids are so called because they are secreted by the adrenal cortex, and the sex hormones are those produced by the ovaries and testes. This distinction is not exclusive, however, because the adrenal cortex also secretes sex hormones, albeit to a lesser extent than do the gonads, and the ovaries under abnormal conditions may produce adrenal steroids.
---------------------------------------------------------------------------------------------------------------------------
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#biology #biosynthesis #steroids #steroid #drnajeeb #phyology
Synthesis of Steroid Hormones | Biosynthesis | Dr Najeeb👨⚕️
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---------------------------------------------------------------------------------------------------------------------------
Why sign up for premium membership? Here's why!
Membership Features for premium website members.
1. More than 1000+ Medical Lectures.
2. Basic Medical Sciences & Clinical Medicine.
3. Mobile-friendly interface with android and iOS apps.
4. English subtitles and new videos every week.
5. Download option for offline video playback.
6. Fanatic customer support and that's 24/7.
7. Fast video playback option to learn faster.
8. Trusted by over 2M+ students in 190 countries.
---------------------------------------------------------------------------------------------------------------------------
▬▬▬▬▬▬▬▬▬▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬
00:00:00 Synthesis Of Steroid Hormones
00:00:46 Derivation Of Steroid Hormone And Cholesterol Functions
00:02:03 Progesterone
00:03:38 Aldosterone
00:05:12 Glucocorticoids
00:05:40 Testosterone And Estrogen
00:06:30 Active Vitamin D3
00:08:20 Structure Of Cholesterol Molecule
00:16:40 Pathways
00:21:00 Androgen Pathway
00:26:15 Further Explanation Of Pathways
00:30:33 Histology And Functions Of Adrenal Gland
00:36:48 Cellular Changes Related To Cholesterol Molecule
00:40:00 Effect Of ACTH And Desmolase Enzyme
00:45:00 Dehydrogenase Enzyme Role
00:48:47 Three Pathways From Progesterone
00:51:35 Q&A
00:52:20 Difference Between Pathways And Their Mechanisms
01:13:50 Testosterone Pathway
01:27:00 Androgens Pathway In Females
01:29:00 Ketoconazole Effect On Desmolase
01:29:50 Revision Of Hydroxylations
01:30:31 What Is Hydroxylation Reactions And Enzymes Involved In It
01:38:26 Clinical Corelates With Synthesis Of Hormones
01:40:00 Deficiency Of 17 Alpha Hydroxylase
01:56:50 Deficiency Of 21 Beta Hydroxylase
01:59:34 Congenital Adrenal Hyperplasia
02:13:15 Deficiency Of DHT
02:16:23 Effect Of Licorice
---------------------------------------------------------------------------------------------------------------------------
Steroid hormone, any of a group of hormones that belong to the class of chemical compounds known as steroids; they are secreted by three “steroid glands”—the adrenal cortex, testes, and ovaries—and during pregnancy by the placenta. All steroid hormones are derived from cholesterol. They are transported through the bloodstream to the cells of various target organs where they carry out the regulation of a wide range of physiological functions.
These hormones often are classified according to the organs that synthesize them: the adrenal steroids are so called because they are secreted by the adrenal cortex, and the sex hormones are those produced by the ovaries and testes. This distinction is not exclusive, however, because the adrenal cortex also secretes sex hormones, albeit to a lesser extent than do the gonads, and the ovaries under abnormal conditions may produce adrenal steroids.
---------------------------------------------------------------------------------------------------------------------------
Join this channel to get access to perks:
Sign up now on our website at https://members.drnajeeblectures.com/#!/register-fast
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- published: 12 Feb 2023
- views: 74433
5:51
Steroid hormone mechanism of entry
This hormone lecture explains the mechanism of entry and mode of action of steroid hormone inside cell.
For more information, log on to-
http://shomusbiology.we...
This hormone lecture explains the mechanism of entry and mode of action of steroid hormone inside cell.
For more information, log on to-
http://shomusbiology.weebly.com/
Download the study materials here-
http://shomusbiology.weebly.com/bio-materials.html
Question source - www.indiabix.com
https://wn.com/Steroid_Hormone_Mechanism_Of_Entry
This hormone lecture explains the mechanism of entry and mode of action of steroid hormone inside cell.
For more information, log on to-
http://shomusbiology.weebly.com/
Download the study materials here-
http://shomusbiology.weebly.com/bio-materials.html
Question source - www.indiabix.com
- published: 02 Oct 2014
- views: 108665
4:52
The Endocrine System, Overview, Animation
(USMLE topics) Function of the endocrine system, mechanism of action of steroid and nonsteroid hormones, major endocrine organs, functions and negative feedback...
(USMLE topics) Function of the endocrine system, mechanism of action of steroid and nonsteroid hormones, major endocrine organs, functions and negative feedback control. Purchase PDF (script of this video + images) here: https://www.alilamedicalmedia.com/-/galleries/pdf-video-scripts-with-images/a-p-basics/-/medias/15d7e78b-6632-4d17-8d86-0788680a5b71-endocrine-system-overview-3-pages-7-images
This video and other related videos (in HD) are available for instant download licensing here: https://www.alilamedicalmedia.com/-/galleries/narrated-videos-by-topics/endocrinology-basics
©Alila Medical Media. All rights reserved.
Voice by Ashley Fleming
Support us on Patreon and get FREE downloads and other great rewards: patreon.com/AlilaMedicalMedia/posts
All images/videos by Alila Medical Media are for information purposes ONLY and are NOT intended to replace professional medical advice, diagnosis or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition.
The endocrine system is one of the two systems that are responsible for communication and integration between various body tissues, the other being the nervous system. Endocrine communication is achieved by means of chemical messengers called hormones. Hormones are produced in endocrine glands and secreted into the bloodstream to reach body tissues. A hormone can travel wherever the blood goes, but it can only affect cells that have receptors for it. These are called target cells. There are 2 major types of hormones: steroid hormones derived from cholesterol and are lipid-soluble; and non-steroid hormones derived from peptides or amino-acids and are water-soluble. Lipid-soluble steroid hormones can cross the cell membrane to bind to their receptors inside the cell, either in the cytoplasm or nucleus. Steroid hormone receptors are typically transcription factors. Upon forming, the hormone/receptor complex binds to specific DNA sequences to regulate gene expression, and thus mediating cellular response. On the other hand, water-soluble non-steroid hormones are unable to cross the lipid membrane and therefore must bind to receptors located on the surface of the cell. The binding triggers a cascade of events that leads to production of cAMP, a second messenger that is responsible for cellular response to hormone. It does so by changing enzyme activity or ion channel permeability.
Major endocrine glands include: the hypothalamus, pituitary gland, pineal gland, thyroid and parathyroid glands, thymus, adrenal gland, islets of the pancreas, and testes in men or ovaries in women. The endocrine system also includes hormone-secreting cells from other organs such as kidneys and intestine.
Except for the hypothalamus and the pituitary, different endocrine glands are involved in different, more or less independent, processes. For example, the pancreas produces insulin and glucagon that keep blood sugar levels in check; the parathyroid glands produce hormones that regulate calcium and phosphorus; thyroid hormones control metabolic rates; while the ovaries and testes are involved in reproductive functions. On the other hand, the hypothalamus and pituitary gland play a more central, integrative role. The hypothalamus is also part of the brain. It secretes several hormones, called neuro-hormones, which control the production of other hormones by the pituitary. Thus, the hypothalamus links the nervous system to the endocrine system. The pituitary is known as the master gland because it controls the functions of many other endocrine glands.
A major role of the endocrine system is to maintain the body’s stable internal conditions, or homeostasis, such as blood sugar levels or serum calcium levels. To do this, it utilizes negative feedback mechanisms, which work very much like a thermostat: the heater is on when the temperature is low, off when it’s high. For example, when blood glucose level is high, such as after a meal, glucose induces insulin release from the pancreas. Insulin helps body cells consume glucose, clearing it from the blood. Low blood glucose can no longer act on the pancreas, which now stops releasing insulin. Another example is the regulation of thyroid hormones levels which are induced by a pituitary hormone called thyroid-stimulating hormone, TSH. TSH, in turn, is under control of thyrotropin-releasing hormone, TRH, from the hypothalamus. When thyroid hormone levels are too high, they suppress the secretion of TSH and TRH, consequently inhibiting their own production.
https://wn.com/The_Endocrine_System,_Overview,_Animation
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The endocrine system is one of the two systems that are responsible for communication and integration between various body tissues, the other being the nervous system. Endocrine communication is achieved by means of chemical messengers called hormones. Hormones are produced in endocrine glands and secreted into the bloodstream to reach body tissues. A hormone can travel wherever the blood goes, but it can only affect cells that have receptors for it. These are called target cells. There are 2 major types of hormones: steroid hormones derived from cholesterol and are lipid-soluble; and non-steroid hormones derived from peptides or amino-acids and are water-soluble. Lipid-soluble steroid hormones can cross the cell membrane to bind to their receptors inside the cell, either in the cytoplasm or nucleus. Steroid hormone receptors are typically transcription factors. Upon forming, the hormone/receptor complex binds to specific DNA sequences to regulate gene expression, and thus mediating cellular response. On the other hand, water-soluble non-steroid hormones are unable to cross the lipid membrane and therefore must bind to receptors located on the surface of the cell. The binding triggers a cascade of events that leads to production of cAMP, a second messenger that is responsible for cellular response to hormone. It does so by changing enzyme activity or ion channel permeability.
Major endocrine glands include: the hypothalamus, pituitary gland, pineal gland, thyroid and parathyroid glands, thymus, adrenal gland, islets of the pancreas, and testes in men or ovaries in women. The endocrine system also includes hormone-secreting cells from other organs such as kidneys and intestine.
Except for the hypothalamus and the pituitary, different endocrine glands are involved in different, more or less independent, processes. For example, the pancreas produces insulin and glucagon that keep blood sugar levels in check; the parathyroid glands produce hormones that regulate calcium and phosphorus; thyroid hormones control metabolic rates; while the ovaries and testes are involved in reproductive functions. On the other hand, the hypothalamus and pituitary gland play a more central, integrative role. The hypothalamus is also part of the brain. It secretes several hormones, called neuro-hormones, which control the production of other hormones by the pituitary. Thus, the hypothalamus links the nervous system to the endocrine system. The pituitary is known as the master gland because it controls the functions of many other endocrine glands.
A major role of the endocrine system is to maintain the body’s stable internal conditions, or homeostasis, such as blood sugar levels or serum calcium levels. To do this, it utilizes negative feedback mechanisms, which work very much like a thermostat: the heater is on when the temperature is low, off when it’s high. For example, when blood glucose level is high, such as after a meal, glucose induces insulin release from the pancreas. Insulin helps body cells consume glucose, clearing it from the blood. Low blood glucose can no longer act on the pancreas, which now stops releasing insulin. Another example is the regulation of thyroid hormones levels which are induced by a pituitary hormone called thyroid-stimulating hormone, TSH. TSH, in turn, is under control of thyrotropin-releasing hormone, TRH, from the hypothalamus. When thyroid hormone levels are too high, they suppress the secretion of TSH and TRH, consequently inhibiting their own production.
- published: 05 Nov 2018
- views: 936332
8:22
Endocrine 4- Steroid hormones
Part 4 in a 8 part lecture on ENDOCRINE SYSTEM in a flipped Human Physiology course taught by Wendy Riggs. CC-BY. Watch the whole lecture (all 8 videos) by goi...
Part 4 in a 8 part lecture on ENDOCRINE SYSTEM in a flipped Human Physiology course taught by Wendy Riggs. CC-BY. Watch the whole lecture (all 8 videos) by going to the PLAYLIST: http://www.youtube.com/playlist?list=PL5GRRRmaGVqWVsBVEz3vTnU5IN_Er7Xgr
https://wn.com/Endocrine_4_Steroid_Hormones
Part 4 in a 8 part lecture on ENDOCRINE SYSTEM in a flipped Human Physiology course taught by Wendy Riggs. CC-BY. Watch the whole lecture (all 8 videos) by going to the PLAYLIST: http://www.youtube.com/playlist?list=PL5GRRRmaGVqWVsBVEz3vTnU5IN_Er7Xgr
- published: 25 Jan 2015
- views: 46479
5:25
Synthesis of steroid hormone part 1 | steroid hormone synthesis in Urdu/Hindi | 2020
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https://wn.com/Synthesis_Of_Steroid_Hormone_Part_1_|_Steroid_Hormone_Synthesis_In_Urdu_Hindi_|_2020
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- published: 23 Apr 2020
- views: 43351
1:45
Signaling pathway of steroid hormones
We're pleased to resume our Express Video of the Week series with a hormonal hit from the Endocrine section of First Aid. In this video, Arjun Iyer tackles the ...
We're pleased to resume our Express Video of the Week series with a hormonal hit from the Endocrine section of First Aid. In this video, Arjun Iyer tackles the signaling pathway of steroid hormones.
As one USMLE-Rx subscriber commented, "Arjun just made the signaling pathways topic suuuuuuuper easy to remember with his 7 rules #legend"
Start a free trial at www.usmle-rx.com and view any of our high-yield videos, which help you understand every fact in First Aid for the USMLE Step 1.
https://wn.com/Signaling_Pathway_Of_Steroid_Hormones
We're pleased to resume our Express Video of the Week series with a hormonal hit from the Endocrine section of First Aid. In this video, Arjun Iyer tackles the signaling pathway of steroid hormones.
As one USMLE-Rx subscriber commented, "Arjun just made the signaling pathways topic suuuuuuuper easy to remember with his 7 rules #legend"
Start a free trial at www.usmle-rx.com and view any of our high-yield videos, which help you understand every fact in First Aid for the USMLE Step 1.
- published: 12 Jan 2019
- views: 14931