[The age-related characteristics of the dopaminergic regulation of prolactin secretion in men].

Age-specific time course of prolactin secretion and features of dopaminergic regulation of this hormone secretion were studied in boys aged 3 to 15 and in adult men aged 20 to 25. Blood plasma prolactin concentration was found reduced in boys, and this hormone level, characteristic for adults, sets up at the age of 9-11. Dopaminergic regulation of prolactin secretion undergoes three stages in boys: Stage 1--hyperreaction to introduction of a receptor antagonist at the age of 3 to 8, Stage 2--at the age of 9 to 11--reduced reaction to D2 receptor blocking, though this reaction being much higher than in adults, and Stage 3 (at the age of 12-15)--development of a normal reaction characteristic of adults.

[Modified technique of the Ivanissevich operation for varicocele in children].

On the basis of the results of rheotesticulographic studies in 38 children with left-sided II-III degree varicocele, the impairment in hemodynamics in the testicle at the involved side was established. No suppression of androgen function of the organ was revealed. The expediency to perform in patients of pediatric and young age the Ivanissevich operation, the effectiveness of which is increased in use of intraoperative phlebotesticulography was noted.