Synthesis of Steroid Hormones | Biosynthesis | Dr Najeeb👨⚕️
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- เผยแพร่เมื่อ 5 ส.ค. 2024
- #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
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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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