Effect of testosterone replacement therapy on sexual function and glycemic control among hypogonadal men with type 2 diabetes mellitus

Kazuyoshi Shigehara, Hiroyuki Konaka, Yuki Kato, Masashi Iijima, Kazufumi Nakashima, Shohei Kawaguchi, Takahiro Nohara, Kouji Izumi, Mikio Namiki, Atsushi Mizokami
International Journal of Impotence Research 2019, 31 (1): 25-30
We investigated the effect of testosterone replacement therapy (TRT) on glycemic control and sexual function among hypogonadal men with type 2 diabetes mellitus (T2DM). From the EARTH study, 86 patients (47 in the TRT and 39 in the non-TRT groups) with a diagnosis of T2DM were extracted. We collected data on waist circumference, body mass index, body fat volume, free testosterone, hemoglobin (Hb), fasting blood sugar, and hemoglobin A1c (HbA1c) at baseline and after 12 months. Aging Male Symptoms (AMS) score and International Prostate Symptom Score were obtained. Sexual function was assessed by questions 15 (sexual ability), 16 (morning erections), and 17 (sexual desire) of AMS subscores. The TRT group received intramuscular testosterone enanthate (250 mg) injections every 4 weeks for 12 months. Body fat percentage, Hb, and HbA1c were significantly improved in the TRT group. In addition, sexual ability and frequency, and sexual desire showed a significant improvement in the TRT group after 1 year TRT. On the other hand, any parameters including glycemic control and sexual functions were not significantly improved in non-TRT groups. One-year TRT can improve sexual function and glycemic control among hypogonadal men with T2DM.

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