Biological potential of childbearing in the women of late reproductive age is limited by natural impairment and loss of fertility. Despite a considerable progress in clinical application of new diagnostic and reproductive technologies, the problem of infertility remains a most serious challenge. Women’s age is one of the main factors responsible for the outcome of in vitro fertilization. The low effectiveness of in vitro fertilization programs is attributed to discoordination in the hypothalamic-pituitary system, depletion of ovarian resources, and deterioration of quality of reproductive material. Bearing in mind the role of melatonin in synchronizing circadian and seasonal biorhythms and regulating physiological and pathological processes, it is natural to suggest its role in the enhancement of efficiency of in vitro fertilization programs for women of late reproductive age.
