Kidney Endocrine Function - Anatomy & Physiology
|Renin||This enzyme forms a vital part of theRenin-Angiotensin-Aldosterone System]], a complex system of hormones and enzymes which act to raise blood pressure when stimulated by hypotension.
Renin is the enzyme required for the creation of the hormone angiotensin.
|Erythropoietin||Erythropoeitin is the vital hormone for erythropoeisis, the production of red blood cells.|
|Calcitriol||Also known as Active Vitamin D3, or 1-25-Dihydroxyvitamin D3, Calcitriol is vital for calcium homeostasis, and acts to raise plasma calcium levels. Within the kidney, vitamin D from dietary sources or the skin is 'activated' by hydroxylation.|
A proteolytic enzyme synthesised in the kidney. Renin affects blood pressure indirectly and is part of the first stage of the renin-angiotensin-aldosterone-system. Its effects are through its activation of this system by the conversion of angiotensinogen to angiotensin 1.
Erythropoietin is a glycoprotein hormone produced in the kidneys in adult life. Its function is beyond the scope of this section and more information can be found on regulatioon of erythropoiesis.
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