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Aldosterone is the primary of several endogenous members of the class of mineralocorticoids in humans. [citation needed] Deoxycorticosterone is another important member of this class. Aldosterone tends to promote Na + and water retention, and lower plasma K + concentration by the following mechanisms:
Release prolactin from anterior pituitary: 55 Relaxin: RLN Peptide: Corpus luteum, Uterus, placenta, and Mammary gland: Decidual cells: RLN receptor: Relaxation of muscle and ligament tissues in female humans as preparation for menstruation. Anticipatory release for ductus deferens in males. Cardiac vasodilator. 56 Renin: Peptide: Kidney ...
In humans, the right adrenal gland is pyramidal in shape, whereas the left is semilunar or crescent shaped and somewhat larger. [8] The adrenal glands measure approximately 5 cm in length, 3 cm in width, and up to 1 cm in thickness. [9] Their combined weight in an adult human ranges from 7 to 10 grams. [10] The glands are yellowish in colour. [8]
The outermost layer, the zona glomerulosa is the main site for the production of aldosterone, a mineralocorticoid. The synthesis and secretion of aldosterone are mainly regulated by the renin–angiotensin–aldosterone system. The zona glomerulosa cells express a specific enzyme aldosterone synthase (also known as CYP11B2).
The pituitary gland (or hypophysis) is an endocrine gland about the size of a pea and weighing 0.5 grams (0.018 oz) in humans. It is a protrusion off the bottom of the hypothalamus at the base of the brain, and rests in a small, bony cavity (sella turcica) covered by a dural fold (diaphragma sellae).
In the adrenal cortex, angiotensin II acts to cause the release of aldosterone. Aldosterone acts on the tubules (e.g., the distal convoluted tubules and the cortical collecting ducts) in the kidneys, causing them to reabsorb more sodium and water from the urine. This increases blood volume and, therefore, increases blood pressure.
The opposite mechanism is called transrepression. The hormone receptor without ligand binding interacts with heat shock proteins and prevents the transcription of targeted genes. Aldosterone and cortisol (a glucosteroid ) have similar affinity for the mineralocorticoid receptor; however, glucocorticoids circulate at roughly 100 times the level ...
12401 Ensembl ENSG00000277405 ENSG00000170099 ENSMUSG00000060807 UniProt P08185 Q06770 RefSeq (mRNA) NM_001756 NM_007618 RefSeq (protein) NP_001747 NP_031644 Location (UCSC) Chr 14: 94.3 – 94.32 Mb Chr 12: 103.61 – 103.62 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Transcortin, also known as corticosteroid-binding globulin (CBG) or serpin A6, is a protein produced in the ...