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Aldosterone is part of the renin–angiotensin–aldosterone system. It has a plasma half-life of less than 20 minutes. [ 9 ] Drugs that interfere with the secretion or action of aldosterone are in use as antihypertensives, like lisinopril , which lowers blood pressure by blocking the angiotensin-converting enzyme (ACE), leading to lower ...
Membrane mineralocorticoid receptors (mMRs) or membrane aldosterone receptors are a group of receptors which bind and are activated by mineralocorticoids such as aldosterone. [ 1 ] [ 2 ] Unlike the classical nuclear mineralocorticoid receptor (MR), which mediates its effects via genomic mechanisms, mMRs are cell surface receptors which rapidly ...
It inhibits renin secretion, thereby inhibiting the production of angiotensin and aldosterone. It inhibits the renal sympathetic nervous system. ANP has the opposite effect of angiotensin II on the kidney: angiotensin II increases renal sodium retention and ANP increases renal sodium loss.
Aldosterone acts on the kidneys to provide active reabsorption of sodium and an associated passive reabsorption of water, as well as the active secretion of potassium in the principal cells of the cortical collecting tubule and active secretion of protons via proton ATPases in the lumenal membrane of the intercalated cells of the collecting tubule.
For people with hyperplasia of both glands, successful treatment is often achieved with spironolactone or eplerenone, drugs that block the aldosterone receptor. With its antiandrogen effect, spironolactone drug therapy may have a range of side effects in males and females, including gynecomastia and irregular menses. These symptoms occur less ...
[9] [12] [16] In addition, both the central and peripheral nervous systems can use angiotensin for sympathetic neurotransmission. [17] Other places of expression include the reproductive system, the skin and digestive organs. Medications aimed at the systemic system may affect the expression of those local systems, beneficially or adversely. [9]
Aldosterone production is also affected to one extent or another by nervous control which integrates the inverse of carotid artery pressure, pain, posture, and probably emotion (anxiety, fear, and hostility)(including surgical stress). The role of baroreceptors: Pressure in the carotid artery decreases aldosterone. The role of the ...
The causes of SIADH are commonly grouped into categories including: central nervous system diseases that directly stimulate the hypothalamus to release ADH, various cancers that synthesize and secrete ectopic ADH, various lung diseases, numerous drugs that may stimulate the release of ADH, enhance ADH effects, act as ADH analogues in the body ...