Этнические особенности сезонной вариабельности гормонального статуса у девочек-подростков

In contrast season of year 3578 practically healthy girls of different ethnic groups (Europeans, Nanaies and Yakuts) in prepubertal and pubertal periods of development living in Pryamurye and Yakutia were examined. In serum determined concentration of pituitary, adrenocorticosteroid and thyroid hormones. It was shown, that the seasonal variability of hormone secretion depends upon the age and ethnic belonging of child.