期刊
LIFE SCIENCES
卷 71, 期 9, 页码 979-992出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0024-3205(02)01775-7
关键词
prolactin; schizophrenia; bone mineral density
Prolactin is a polypeptide hormone that is synthesized and secreted from specialised cells of the anterior pituitary gland, known as lactotrophs. The hormone was given it's name because extracts from the bovine pituitary gland caused growth of the crop sac and stimulated the elaboration of crop milk in pigeons, and promoted lactation in rabbits. Although prolactin is best known for the multiple effects it exerts on the mammary gland, it has over 300 separate biological activities not represented by its name. It sub serves multiple roles in reproduction other than lactation and is an important modulator of homeostasis in the mammalian organism. Hence Bern and Nicoll suggested renaming it omnipotin or versatilin. Schizophrenia is a severe psychiatric disorder that affects approximately one percent of the population worldwide. It is well established that traditional typical antipsychotics elevate prolactin levels. It is also agreed that the serum prolactin concentration is not elevated in patients with schizophrenia who are not receiving anti-psychotic medication. Hyperprolactinaemia has direct effects on the brain and on other organs. Direct consequences include galactorrhoea. Indirect consequences of hyperprolactinaemia include oligomenorrhoea and amenorrhoea, erratic or absent ovulation, sexual dysfunction, reduced bone mineral density and cardiovascular disease. With the advent of prolactin sparing anti-psychotics, ample consideration needs to be given to the physiological consequences of hyperprolactinaemia in schizophrenic patients. In this paper we will examine molecular biology, secretion and physiology of prolactin. The consequences of hyperprolactinaemia in humans including effects on fertility, sexual dysfunction, bone mineral density, cardiovascular disease, changes in psychopathology and movement disorders will be reviewed. The literature on the association between schizophrenia, anti-psychotic medication and hyperprolactinaemia and more specifically on the consequences of this hyperprolactinaemia in schizophrenic patients will also be reviewed. (C) 2002 Published by Elsevier Science Inc.
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