کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10892887 | 1082121 | 2011 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
In vitro effects of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) on ovarian, pituitary, and pineal function in pigs
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
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چکیده انگلیسی
The aims of the study were: (1) to examine 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) and/or prolactin (PRL) effects on in vitro secretion of progesterone (P4) and estradiol (E2) by luteinized granulosa and theca cells from porcine preovulatory follicles; and (2) to determine the effects of TCDD on PRL, luteinizing hormone (LH), and melatonin luteal phase in pigs. We found that TCDD itself did not affect progesterone secretion, but it abolished the stimulatory effect of PRL in the follicular cells. TCDD stimulated PRL secretion during the luteal phase and inhibited during the follicular phase. Moreover, TCDD increased luteinizing hormone secretion by pituitary cells during the follicular phase. In contrast to protein and steroid hormones, melatonin secretion in vitro was not affected by TCDD. In conclusion, it was found that the pituitary-ovarian axis in pigs is sensitive to TCDD, and the dioxin exhibited a profound ability to disrupt the ovarian actions of prolactin.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Theriogenology - Volume 76, Issue 5, 15 September 2011, Pages 921-932
Journal: Theriogenology - Volume 76, Issue 5, 15 September 2011, Pages 921-932
نویسندگان
O. Jablonska, J. Piasecka, B.K. Petroff, A. Nynca, G. Siawrys, B. WÄ
sowska, A. Zmijewska, B. Lewczuk, R.E. Ciereszko,