adrenocorticotropic hormone definition
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- Adrenocorticotropic hormone (ACTH), also known as corticotropin (INN, BAN) (brand names Acortan, ACTH, Acthar, Acton, Cortigel, Trofocortina), is a polypeptide tropic hormone produced and secreted by the anterior pituitary gland.onversely, deficiency of ACTH is a cause of secondary adrenal insufficiency, often as a result of hypopituitarism. ACTH is also related to the circadian rhythm in many organisms. In addition to its endogenous role, ACTH is used clinically as a diagnostic agent in assessing adrenal function.
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Adrenocorticotropic Hormone (ACTH, Corticotropin) Corticotropin-releasing hormone itself is inhibited by glucocorticoids, making it part of a classical negative feedback loop. Additional information on the role of ACTH in regulation of adrenal steroid secretion is presented in the sections on the adrenal gland and glucocorticoids.
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What is an ACTH test? ACTH is a hormone produced in the anterior (front) pituitary gland in the brain. The function of ACTH in the body is to regulate levels of the steroid hormone cortisol, released from the adrenal gland. ACTH is also known as adrenocorticotropic hormone, serum adrenocorticotropic hormone, highly-sensitive ACTH, corticotropin, and cosyntropin (a drug form of ACTH).
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- aldosterone-a corticosteroid hormone that is secreted by the cortex of the adrenal gland; regulates salt (sodium and potassium) and water balance. mineralocorticoid-hormone that is one of the steroids of the adrenal cortex that influences the metabolism of sodium and potassium. Translations.
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aldosterone A mineralocorticoid hormone produced by the zona glomerulosa of the adrenal cortex; its major action is to facilitate potassium exchange for sodium in the distal renal tubule, causing sodium reabsorption and potassium and hydrogen loss; the principal mineralocorticoid. hormone produced by the cortex of the suprarenal gland; its major action is to facilitate potassium exchange for sodium in the distal renal tubule, causing sodium reabsorption and potassium and hydrogen loss; the principal mineralocorticoid.
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Corticotropin Corticotropin What are Corticotropin. Corticotropin is a polypeptide hormone, also known as adrenocorticotropic hormone (ACTH), synthesized and stored in the anterior pituitary gland. Large amounts of corticotropin are released in response to any form of stress. Corticotropin stimulates secretion of adrenal cortical hormones (mainly glucocorticoids) from the adrenal gland. It is used to test adrenal function. List of Corticotropin:
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ACTH n. 1  A hormone produced by the anterior lobe of the pituitary gland that stimulates the secretion of cortisol and other hormones by the adrenal cortex. 2  a hormone of the anterior pituitary that stimulates the production of steroids in the cortex of the adrenal glands. 3  Short for adrenocorticotropic hormone.
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- 1 ACTH (adrenocorticotropic hormone) is a hormone produced by the brain that stimulates the adrenal glands to release cortisol and other hormones.2  Two medical conditions, Cushing’s disease and Addison’s disease, occur when the body’s regulation of adrenal gland hormones is altered. ACTH (adrenocorticotropic hormone) is a hormone produced by the brain that stimulates the adrenal glands to release cortisol and other hormones.
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Adrenocorticotropic hormone 1 Activate Your Free Trial!  Adrenocorticotropic hormone (ACTH) Adrenocorticotropic hormone (ACTH), also called corticotropin or adrenocorticotropin, a polypeptide hormone formed in the pituitary gland that regulates the activity of the outer region (cortex) of the adrenal glands.
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- An adrenocorticotropic hormone test measures the level of adrenocorticotropic hormone (ACTH) in the blood to check for problems with the pituitary gland and adrenal glands. Low levels of ACTH and cortisol could be caused by a problem with the pituitary gland. 2  Overproduction of ACTH. 3  This may be caused by an overactive pituitary gland, or sometimes by a tumor in the lung.
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corticosteroid corticosteroid. any of the hormones produced by the adrenal cortex; also, their synthetic equivalents. Called also adrenocortical hormone and adrenocorticosteroid.any of the hormones produced by the adrenal cortex; also, their synthetic equivalents. Called also adrenocortical hormone and adrenocorticoid. All the hormones are steroids having similar chemical structures, but quite different physiologic effects.orticosteroid. any of the hormones produced by the adrenal cortex; also, their synthetic equivalents. Called also adrenocortical hormone and adrenocorticosteroid.
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aldosterone [al′dōstərōn′, aldos′tərōn]. a mineralocorticoid steroid hormone produced by the adrenal cortex with action in the renal tubule to retain sodium, conserve water by reabsorption, and increase urinary excretion of potassium.
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Alternative names for corticotrophin-releasing hormone Alternative names for corticotrophin-releasing hormone. Corticotropin-releasing hormone; corticotrophin-releasing factor; corticotropin-releasing factor; corticoliberin; CRH; CRF. Corticotrophin-releasing hormone is secreted by the paraventricular nucleus of the hypothalamus which, among other functions, releases hormones.
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Overview Cortisol is a steroid hormone produced by the adrenal gland. It is released in response to ACTH (adrenocorticotropic hormone), which is produced by the pituitary gland near the brain. Adrenocorticotropic hormone stimulates the secretion of hormones by the adrenal cortex.
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- An adrenocorticotropic hormone test measures the level of adrenocorticotropic hormone (ACTH) in the blood to check for problems with the pituitary gland and adrenal glands. A problem with the adrenal glands or pituitary gland. 2  A high level of ACTH and a low level of cortisol (or low ACTH and high cortisol levels) could be caused by a problem with the adrenal glands. 3  Low levels of ACTH and cortisol could be caused by a problem with the pituitary gland. 4  Overproduction of ACTH.
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- Adrenal glands work interactively with the hypothalamus and pituitary gland in the brain. For example, for the adrenal gland to produce corticosteroid hormones: The hypothalamus produces corticotropin-releasing hormone (CRH) that stimulates the pituitary gland to produce adrenocorticotropin hormone (ACTH). The ACTH stimulates the adrenal glands to make and release corticosteroid hormones into the blood. Both the hypothalamus and the pituitary gland can sense whether the blood has the right amount of an adrenal hormone (cortisol) in it.
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mineralocorticoid See also adrenocorticotrophic hormone (ACTH), hormones, steroids; Table 1. hormone secreted by the adrenal glands, at a rate regulated by the level of sodium in body fluids. Acts in the kidneys to enhance reabsorption of sodium, reducing its loss in the urine.Similar action on sweat glands reduces sodium loss when sweating rate is high.ithout sufficient supply of the mineralocorticoids, fatal shock from diminished cardiac output can occur very quickly. The principal mineralocorticoid is aldosterone, which accounts for most of the activities of this group of hormones.
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- Another tropic hormone from the anterior pituitary gland is adrenocorticotropic hormone (ACTH) . This hormone has a long name, but its name actually makes its function easier to remember when you break it down. The prefix 'adreno' refers to the adrenal gland.
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- corticotropin-releasing hormone (CRH). [kor′kôr′tikōtrop]. in a polypeptide hormone secreted by the hypothalamus into the pituitary portal system where it triggers the release of adrenocorticotropic hormone from the pituitary. gland
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Adrenocorticotropic hormone It is an important component of the hypothalamic-pituitary-adrenal axis and is often produced in response to biological stress (along with its precursor corticotropin-releasing hormone from the hypothalamus). Its principal effects are increased production and release of cortisol by the cortex of the adrenal gland.onversely, deficiency of ACTH is a cause of secondary adrenal insufficiency, often as a result of hypopituitarism. ACTH is also related to the circadian rhythm in many organisms. In addition to its endogenous role, ACTH is used clinically as a diagnostic agent in assessing adrenal function.
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Overview Cortisol is a steroid hormone produced by the adrenal gland. It is released in response to ACTH (adrenocorticotropic hormone), which is produced by the pituitary gland near the brain. Adrenocorticotropic hormone stimulates the secretion of hormones by the adrenal cortex.here are certain diseases, such as Addison’s disease and Cushing’s disease, which affect the amount of cortisol produced by the adrenal gland. The test is used in the diagnosis of these diseases and as a way to assess the functioning of the adrenal and pituitary glands.
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Corticotropin-releasing hormone Alternative Titles: CRF, CRH, corticotropin-releasing factor Corticotropin-releasing hormone (CRH), a peptide hormone that stimulates both the synthesis and the secretion of adrenocorticotropic hormone (ACTH) in the corticotropin-producing cells (corticotrophs) of the anterior pituitary gland.
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- The hypothalamus produces corticotropin-releasing hormone (CRH) that stimulates the pituitary gland to produce adrenocorticotropin hormone (ACTH). The ACTH stimulates the adrenal glands to make and release corticosteroid hormones into the blood.Both the hypothalamus and the pituitary gland can sense whether the blood has the right amount of an adrenal hormone (cortisol) in it.he adrenal cortex secretes hormones that have an effect on the body's metabolism, on chemicals in the blood, and on certain body characteristics. The adrenal cortex secretes corticosteroids and other hormones directly into the bloodstream. The hormones produced by the adrenal cortex include: Cortisol.
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- corticosteroid. any of the hormones produced by the adrenal cortex; also, their synthetic equivalents. Called also adrenocortical hormone and adrenocorticosteroid.any of the hormones produced by the adrenal cortex; also, their synthetic equivalents. Called also adrenocortical hormone and adrenocorticoid. All the hormones are steroids having similar chemical structures, but quite different physiologic effects.he corticosteroids synthesized by the adrenal glands include the glucocorticoids and the mineralocorticoids. The principal glucocorticoids are cortisol and corticosterone. The only physiologically important mineralocorticoid in humans is aldosterone. These hormones may be manufactured and administered exogenously.
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adrenocorticotropic hormone adrenocorticotropic. having a stimulating effect on the adrenal cortex; corticotropic. adrenocorticotropic hormone. acth, a hormone secreted by the anterior pituitary gland which has a stimulating effect on the adrenal cortex. Called also corticotropin.1  Facebook.drenocorticotropic hormone (ACTH), a hormone of the adenohypophysis that stimulates growth of the adrenal cortex and the synthesis and secretion of corticosteroids.
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Medical Definition of Corticotropin-releasing hormone home / medterms medical dictionary a-z list / corticotropin-releasing hormone definition Medical Definition of Corticotropin-releasing hormone Corticotropin-releasing hormone: A hormone made by the hypothalamus that stimulates the release of corticotropin by the anterior pituitary gland. Corticotropin-releasing hormone is abbreviated and often referred to as CRH.