Effects of functional peripheral sympathetic denervation induced by guanethidine on follicular development and ovulation of the adult female guinea pig
2002
The present study investigates the effects of functional sympathetic peripheral denervation induced by guanethidine sulphate (GTD) to adult female guinea pigs in the follicular (FPh) or luteal phases (LPh) on their oestrous cyclicity and ovulation. No differences were observed in oestrous cyclicity or the average number of corpora lutea present in the ovaries between the control and denervated animals. Guanethidine sulphate administration resulted in a significant decrease in ovarian norepinephrine content, higher for the left ovary than for the right one. Serum oestrogen and progesterone concentrations, the mean of follicles, and its diameter were different, depending on the oestral cycle in which the treatment was performed. These results suggest that in adult normal female guinea pigs, ovarian innervation participates in the regulation of follicular development in an inhibitory way.
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