期刊
ANIMAL REPRODUCTION SCIENCE
卷 65, 期 1-2, 页码 127-134出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0378-4320(00)00225-6
关键词
pig-ovary; androgen receptor; aromatase; ovarian follicle; corpus luteum; immunohistochemistry
The following study was undertaken to localize androgen receptors (AR) and aromatase cytochrome P450 (P450arom) in porcine ovarian tissue because ovarian androgens may act locally to modulate follicular and luteal function in various species. Androgen receptor was detected immunohistochemically in granulosa and theca cells of preantral as well as in growing antral follicles. The most intensive staining was observed in the antral granulosa layer. Luteinizing granulosa cells of preovulatory follicles. and luteal cells from the early and midluteal phases rained weakly for the androgen receptor. Fully regressed corpora lutea in the early follicular phase of the next cycle did nor stain for androgen receptor. in contrast. granulosa cells were very weakly stained for aromatase in early stages of follicular development. The P450arom was maximally expressed with the same intensity in mural and antral layers in large ovulatory follicles. Corpora lutea from the early luteal phase showed positive staining, whereas those from midluteal phase did not stain for aromatase. some cells of regressed corpora lutea unexpectedly exhibited aromatase staining. (C) 2001 Elsevier Science B.V. All rights reserved.
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