Tag: Renin

  • Adenohypophysis regulates several physiological processes, including stress, growth, reproduction, and lactation

    Adenohypophysis regulates several physiological processes, including stress, growth, reproduction, and lactation

    A major organ of the endocrine system, the anterior pituitary (also called the adenohypophysis or pars anterior) is the glandular, anterior lobe that together with the posterior lobe (posterior pituitary, or the neurohypophysis) makes up the pituitary gland (hypophysis). The anterior pituitary regulates several physiological processes, including stress, growth, reproduction, and lactation. Proper functioning of the anterior pituitary and of the organs it regulates can often be ascertained via blood tests that measure hormone levels. Structure The pituitary gland sits in a…

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  • APUD cells (DNES cells) 

    APUD cells (DNES cells) 

    APUD cells (DNES cells) constitute a group of apparently unrelated endocrine cells, which were named by the scientist A.G.E. Pearse, who developed the APUD concept in the 1960s based on calcitonin-secreting parafollicular C cells of dog thyroid. These cells share the common function of secreting a low molecular weight polypeptide hormone. There are several different types which secrete the hormones secretin, cholecystokinin and several others.…

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  • Brain natriuretic peptide 32 (BNP)

    Brain natriuretic peptide 32 (BNP), also known as B-type natriuretic peptide, is a hormone secreted by cardiomyocytes in the heart ventricles in response to stretching caused by increased ventricular blood volume. BNP is one of two natriuretic peptides  “UniProt”. www.uniprot.org. Retrieved 11 August 2022. The 32-amino acid polypeptide BNP is secreted attached to a 76–amino acid N-terminal fragment in the prohormone called NT-proBNP (BNPT), which is biologically inactive. Once released, BNP binds…

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  • Chymase and Chymosin – Rumored To Be Synonyms (and a little renin and rennin)

    Chymase Alternative name for chymosin [“chymase .” A Dictionary of Food and Nutrition. . Encyclopedia.com. 25 Aug. 2022 https://www.encyclopedia.com] Mast Cell Chymase and Tryptase and some MMPs Chymase and tryptase are packaged in secretory granules together with histamine and other mediators in mast cells, which are infiltrated in rheumatoid synovium. Chymase is a chymotrypsin-like proteinase with a broad spectrum of activity against ECM components such as type VI collagen7 and aggrecan. It…

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