Endocrine Abstracts

Involutive hypoandria (late onset hypogonadism) is characterized by decline in serum testosterone and increase of gonadotropins. Changes of hypothalamo-pituitary-testicular axis sensitivity are influenced by primary testicular changes and altered neuroendocrine regulation during aging. To evaluate age-related changes in gonadotroph and Leydig cell sensitivity two groups were formed: 1) 35 men, 51.8±3.2 years old, BMI=28.2±3.1 kg/m2; 2) 32 men, 63.2±6....