Plasma levels of gonadotropin releasing hormone during menstrual cycle of Macaca radiata

A sensitive radioimmunoassay for gonadotropin releasing hormone has been developed. The assay has been validated for its specificity by testing various analogues of gonadotropin releasing hormone. Analysis of plasma samples during the menstrual cycle of 4 female bonnet monkeys showed a significant increase in the immunoreactive gonadotropin releasing hormone levels during preovulatory period of the menstrual cycle