Abstract
SummaryThe effects of 21 days of constant illumination on the hypothalamic content of FSH-RF and on pituitary content and concentration of FSH were studied in two groups of intact adult female rats. Control rats were housed under standard light conditions (14 hours of light daily). In the rats under constant light, hypothalamic FSH-RF content was significantly increased whereas pituitary FSH content and concentration remained unchanged. Pituitary and uterine weights were increased, and ovarian weight was decreased. Histological examination of the ovaries of the constant light treated rats showed large numbers of well-developed follicles with few small corpora lutea. The uteri of these rats showed a marked augmentation in vascularity, muscle mass, number of glands in the endometrium, and increased height of the epithelium. These results suggest that constant light stimulates increased release of FSH from the pituitary by increasing hypothalamic production of FSH-RF.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.)
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
