Efficacy of Pulsatile Gonadotropin-Releasing Hormone Therapy in Male Patients: Comparison between Pituitary Stalk Interruption Syndrome and Congenital Hypogonadotropic Hypogonadism |
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Authors: | Qibin Huang Jiangfeng Mao Xi Wang Bingqing Yu Wanlu Ma Wen Ji Yiyi Zhu Rui Zhang Bang Sun Junyi Zhang Min Nie Xueyan Wu |
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Affiliation: | 1. NHC Key Laboratory of Endocrinology, Peking Union Medical College Hospital; Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China;2. Department of Endocrinology, China-Japan Friendship Hospital, Beijing, China;3. Department of Endocrinology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China |
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Abstract: | ObjectivePulsatile gonadotropin-releasing hormone (GnRH), widely used to induce spermatogenesis in congenital hypogonadotropic hypogonadism (CHH) patients, can restore the pituitary-testis axis function in men with pituitary stalk interruption syndrome (PSIS). This retrospective study aimed to compare the differences in the long-term efficacy of pulsatile GnRH therapy on PSIS and CHH.MethodsPatients with PSIS (n = 25) or CHH (n = 64) who received pulsatile GnRH therapy for ≥3 months were included in this retrospective study. The rate of successful spermatogenesis, the median time to achieve spermatogenesis, serum gonadotropins, total testosterone, and testicular size were compared.ResultsBaseline characteristics were comparable except for the lower basal testosterone, triptorelin-stimulated peak luteinizing hormone (LH), and follicle-stimulating hormone in patients with PSIS. With similar duration of treatment and a significantly higher GnRH dose (P < .001), small increments in LH (2.82 [1.4, 4.55] vs 5.89 [3.88, 8.02] IU/L; P < .001), total testosterone (0.38 [0, 1.34] vs 2.34 [1.34, 3.66] ng/mL; P < .001), and testicular volume (5.3 ± 4.5 vs 8.8 ± 4.8 mL, P < .05) were observed. However, spermatogenesis rate (52.0% vs 70.3%, P > .05), median time of sperm appearance (14 vs 11 months, P > .05), sperm concentration, and progressive motility were comparable. Basal testicular volume (hazard ratio, 1.13; 95% CI, 1.01-1.27) and peak LH levels (hazard ratio, 1.11; 95% CI, 1.0-1.23) were predictors for early sperm appearance.ConclusionsPulsatile GnRH therapy can improve gonad function and induce spermatogenesis in men with PSIS. However, its efficacy may be inferior to that in CHH. |
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Keywords: | pulsatile gonadotropin-releasing hormone pituitary stalk interruption syndrome congenital hypogonadotropic hypogonadism spermatogenesis CHH" },{" #name" :" keyword" ," $" :{" id" :" kwrd0035" }," $$" :[{" #name" :" text" ," _" :" congenital hypogonadotropic hypogonadism FSH" },{" #name" :" keyword" ," $" :{" id" :" kwrd0045" }," $$" :[{" #name" :" text" ," _" :" follicle-stimulating hormone GnRH" },{" #name" :" keyword" ," $" :{" id" :" kwrd0055" }," $$" :[{" #name" :" text" ," _" :" gonadotropin-releasing hormone LH" },{" #name" :" keyword" ," $" :{" id" :" kwrd0065" }," $$" :[{" #name" :" text" ," _" :" luteinizing hormone MRI" },{" #name" :" keyword" ," $" :{" id" :" kwrd0075" }," $$" :[{" #name" :" text" ," _" :" magnetic resonance imaging PSIS" },{" #name" :" keyword" ," $" :{" id" :" kwrd0085" }," $$" :[{" #name" :" text" ," _" :" pituitary stalk interruption syndrome TT" },{" #name" :" keyword" ," $" :{" id" :" kwrd0095" }," $$" :[{" #name" :" text" ," _" :" total testosterone TV" },{" #name" :" keyword" ," $" :{" id" :" kwrd0105" }," $$" :[{" #name" :" text" ," _" :" testicular volume WHO" },{" #name" :" keyword" ," $" :{" id" :" kwrd0115" }," $$" :[{" #name" :" text" ," _" :" World Health Organization |
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