Influence of light on the plasma gonadotropin concentrations in the newborn rat.
The physiological increase in plasma gonadotropin (LH and FSH) levels in newborn rats is indisputably influenced by light. Permanent illumination accentuates this increase, whereas darkness decreases it in 16-day-old female rats. In male rats of the same age, only permanent illumination was tested with the same results.
D000367:Age Factors; D000818:Animals; D000831:Animals, Newborn / Q000097:blood*; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood*; D008027:Light; D007986:Luteinizing Hormone / Q000097:blood*; D008297:Male; D010870:Pineal Gland / Q000502:physiology; D051381:Rats; D012737:Sex Factors
D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone