کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2074448 | 1544803 | 2008 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Passage of postovulatory follicular fluid into the peritoneal cavity and the effect on concentrations of circulating hormones in mares
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
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چکیده انگلیسی
Reported data were reviewed and reexamined to evaluate the concept that most of the follicular fluid enters the peritoneal cavity at ovulation in mares and transiently alters the circulating concentrations of LH, FSH, estradiol, and inhibin. A transrectal ultrasonographic study supported the hypothesis that the large volume (40-50Â ml) of evacuated follicular fluid passes through the infundibular fimbriae into the peritoneal cavity. A spike in circulating inhibin and a decrease in the rate of reduction in circulatory estradiol occurs at ovulation. Simultaneously, a disruption occurs in the increasing concentrations of the ovulatory LH surge and in the FSH surge that begins before ovulation. The concept was further supported by the present finding that the estradiol content of follicular fluid within a few hours before ovulation is equivalent to the amount reported to be needed for a negative effect on LH and for a synergistic negative effect of estradiol and inhibin on FSH.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Animal Reproduction Science - Volume 107, Issues 1â2, August 2008, Pages 1-8
Journal: Animal Reproduction Science - Volume 107, Issues 1â2, August 2008, Pages 1-8
نویسندگان
O.J. Ginther, E.L. Gastal, M.O. Gastal, M.A. Beg,