期刊
BRAIN RESEARCH BULLETIN
卷 54, 期 1, 页码 13-17出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0361-9230(00)00410-X
关键词
progesterone receptor isoforms; male rat brain; hypothalamus; preoptic area; hippocampus; olfactory bulb
Progesterone receptor (PR) isoforms expression was determined in several regions of the prepuberal and adult mate rat brain by using reverse transcription coupled to polymerase chain reaction, Rats under a 14:10-h light-dark cycle, with lights on at 0600 h were used, We found that in the hypothalamus of prepuberal animals the expression of both PR isoforms was similar, whereas PR-A expression was higher than that of PR-B in adults. In the cerebellum PR-B expression was predominant in both prepuberal and adult rats. In both ages PR-A and PR-B exhibited a non-significant tendency to be predominant in the hippocampus and the preoptic area respectively. In the frontal cortex and the olfactory bulb PR isoforms were expressed at a similar level. These results indicate a differential expression pattern of PR isoforms in the male rat brain and suggest that the tissue-specific expression of PR-A and PR-B is important for the appropriate response of each cerebral region to progesterone. (C) 2001 Elsevier Science Inc.
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