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- W3024850339 abstract "Prolactin is a 23 kDa single chain protein of 199 amino acids synthesised and released principally by lactotrophs in the anterior pituitary gland. The secretion is mainly under inhibitory control by hypothalamic dopamine and regulated in a negative feedback manner, with prolactin itself providing the afferent signal: short-loop feedback. The main function of prolactin is during pregnancy and lactation in the development of mammary glands, milk synthesis and maintenance of milk secretion. Serum prolactin levels rise rapidly during pregnancy with increase in the size and number of lactotrophs. During lactation suckling induces rapid secretion of prolactin via a neuroendocrine reflex pathway. In the absence of pregnancy, hyperprolactinaemia may present with symptoms of hypogonadotropic hypogonadism including menstrual disturbance and infertility or visual symptoms from a pituitary mass effect by a prolactinoma, the most common pituitary tumour. Hyperprolactinaemia is diagnosed by laboratory measurement of serum prolactin. There is considerable variability in routinely available prolactin immunoassays as a result of differing reactivity towards monomeric prolactin and macroprolactin and lack of commutability of the WHO 3rd International Standard between routine methods. Macroprolactinaemia is a relatively common cause of interference in the prolactin assay that may lead to incorrect diagnosis and unnecessary investigations. Measurement of prolactin post polyethylene glycol precipitation (PEG) when prolactin levels are above the reference interval is routinely used to identify macroprolactin, however harmonisation of PEG precipitation process and reporting may improve clinical care." @default.
- W3024850339 created "2020-05-21" @default.
- W3024850339 creator A5061436523 @default.
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- W3024850339 date "2018-02-01" @default.
- W3024850339 modified "2023-10-03" @default.
- W3024850339 title "Prolactin Biology and Laboratory Measurement: An Update on Physiology and Current Analytical Issues." @default.
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- W3024850339 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6069739" @default.
- W3024850339 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30072818" @default.
- W3024850339 hasPublicationYear "2018" @default.