Changes with age in levels of serum gonadotropins, prolactin and gonadal steroids in prepubertal male and female rats.

Radioimmunological determination of serum LH, FSH, and estradiol concentrations in prepubertal female rats demonstrates the temporal coincidence of increased serum levels of these hormones between days 9 and 21. Serum FSH and estradiol levels are continuously high during that time, whereas interindividual fluctuations in LH levels were enormous. No high LH… CONTINUE READING