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The largest amounts of testosterone (>95%) are produced by the testes in men, [4] while the adrenal glands account for most of the remainder. Testosterone is also synthesized in far smaller total quantities in women by the adrenal glands, thecal cells of the ovaries, and, during pregnancy, by the placenta. [158]
The adrenal gland produces aldosterone, a mineralocorticoid, which is important in the regulation of salt ("mineral") balance and blood volume. In the kidneys, aldosterone acts on the distal convoluted tubules and the collecting ducts by increasing the reabsorption of sodium and the excretion of both potassium and hydrogen ions. [ 18 ]
Androgens are synthesized from cholesterol and are produced primarily in the gonads (testicles and ovaries) and also in the adrenal glands. The testicles produce a much higher quantity than the ovaries. Conversion of testosterone to the more potent DHT occurs in prostate gland, liver, brain and skin.
The adrenal cortex is the outer region and also the largest part of the adrenal gland. It is divided into three separate zones: zona glomerulosa, zona fasciculata and zona reticularis. Each zone is responsible for producing specific hormones. It is also a secondary site of androgen synthesis. [2]
Addison's disease is an endocrine disease that results from hypocortisolism caused by adrenal gland insufficiency. Adrenal insufficiency is significant because it is correlated with decreased ability to maintain blood pressure and blood sugar, a defect that can prove to be fatal. [9] Graves' disease involves the hyperactivity of the thyroid ...
Problems with the pituitary gland or hypothalamus, which are parts of the brain that tell the testicles to produce testosterone, can lower your levels of the hormone.
These precursors are not further converted in the adrenal cortex if the cells lack 17β-Hydroxysteroid dehydrogenase. Instead, they are released into the blood stream and taken up in the testicles and ovaries to produce testosterone and the estrogens respectively. ACTH partially regulates adrenal androgen secretion, [4] also CRH. [5] [6]
Adrenal insufficiency is when your adrenal glands don’t make enough hormones. It includes Addison’s disease, which is when your adrenal glands are damaged and may not produce enough hormones ...
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