system
Medical AI Inquiry: You was designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.  Labels: BACKGROUND, METHODS, RESULTS. Meshes: Adult, Anti-Mullerian Hormone, Chorionic Gonadotropin, Follicle Stimulating Hormone, Humans, Hypogonadism, Inhibins, Male, Recombinant Proteins, Semen, Sperm Count, Spermatogenesis, Testis, Testosterone.
user
Is seminal anti-Müllerian hormone level a marker of spermatogenic response during long-term gonadotropin therapy in male hypogonadotropic hypogonadism? Context: In adult men, anti-Müllerian hormone (AMH) levels are higher in semen than in serum, but the significance and control of its seminal secretion are still unknown. This study evaluated seminal and serum AMH levels during long-term gonadotropin therapy in men with hypogonadotropic hypogonadism (HH). A total of 20 men with never treated prepubertal-onset HH received i.m. hCG to normalize testosterone (T) and induce puberty. Afterwards, 11 of them, requiring fertility, were treated with HCG plus recombinant FSH (rFSH) (75 IU) twice a week, whereas 9 continued to receive hCG alone for 12 months. Before and during therapy, serum AMH, inhibin B and T levels were assessed. Semen samples were also collected during therapy for sperm count and seminal AMH assay. HCG alone decreased basal high serum AMH and stimulated T and inhibin B levels. rFSH plus hCG increased seminal AMH levels, which were consequently significantly higher than with hCG alone, and positively correlated to sperm densities and testicular volumes at 3 and 12 months (P < 0.001).
assistant
Our data demonstrate that rFSH, added to hCG, stimulates seminal AMH and spermatogenesis in HH. Thus, seminal AMH levels are under T and FSH control and are closely related to progression of spermatogenesis. Our results also suggest that an early seminal AMH increase may be a marker of good future response to gonadotropin therapy in HH. Final Decision: yes