Introduction Gender dysphoria is characterized by a strong discomfort with the gender assigned at birth and the urge to live as a member of the opposite gender. The acquisition of phenotypic features of the desired gender requires the use of cross-sex hormones. Female-to-male (FtM) transsexual persons are treated with testosterone to induce virilization. Aim The aim of the study was to assess the effects of three different testosterone formulations on body weight and composition and metabolic and bone parameters. Methods Forty-five FtM transsexuals were randomly assigned to receive testoviron depot (i.m.: 100 mg/10 days; n = 15), testosterone gel (50 mg/die; n = 15), and testosterone undecanoate (i.m.: 1,000 mg every 6 weeks for the first 6 weeks and then every 12 weeks, n = 15). FtM individuals were studied before, at week 30, and at week 54 of testosterone treatment. Main Outcome Measures Anthropometric, metabolic, bone, hematological, and biochemical parameters were evaluated at baseline and after 12 months of treatment. Results Lean body mass significantly increased and fat mass decreased in all groups. No modifications were reported in fasting insulin and insulin sensitivity index. High-density plasma lipoprotein levels declined significantly and low-density lipoprotein concentrations increased significantly in the three groups. The activated partial thromboplastin time and factor I did not change while prothrombin time significantly increased in all groups. At week 54, all subjects were amenorrheic and time to amenorrhea did not differ between the three groups. Current general life satisfaction was increased in all subjects after 1 year of treatment. Conclusions One-year testosterone administration in FtM transsexuals appears to be very safe with no differences among the testosterone formulations used. Our study is preliminary, and the detection of subtle or long-term differences in the effects of the three formulations may require further larger and longer term studies in this and other populations.

Introduction The metabolic syndrome (MetS) is a multifactorial disease characterized by the co-occurrence of impaired glucose tolerance/diabetes, central obesity, high levels of triglycerides, low levels of high-density lipoprotein, and hypertension. Its prevalence is higher in menopausal women. We, and others, have recently shown that female sexual dysfunction (FSD) affects menopausal women. Whether the presence of MetS may be linked to a higher risk of FSD in menopausal women is unknown. Aims The aims of our study were: (i) to evaluate the prevalence of FSD in women with MetS (based on National Cholesterol Education program-Adult Treatment Panel III 2009 criteria) in comparison with healthy controls and (ii) to evaluate the influence of singular components of MetS on female sexual function. Methods The Female Sexual Function Index (FSFI) questionnaire, the Female Sexual Distress Scale (FSDS), and The Middlesex Hospital Questionnaire were administered to 103 postmenopausal women with MetS and 105 healthy postmenopausal controls (HC). Female sexuality was defined as dysfunctional when FSFI score was <23 and FSDS was >15. Main Outcome Measures FSFI and FSDS were completed by women with and without MetS. Results The prevalence of women with sexual dysfunction was higher in MetS women than HC (39/103 [37.9%] vs. 20/105 [19%], P = 0.003). The prevalence of both pathological scores in every FSFI domain and FSDS score was higher in MetS women than HC. The logistic regression, considering age and the length of relationship as a common starting point, shows that higher levels of triglycerides are linked to a higher risk of presenting FSD (odds ratio = 2.007 95% confidence interval [1.033–3.901]) in the whole population. Conclusions Our preliminary results suggest that prevalence of FSD is higher in women with MetS in comparison with healthy controls. Higher levels of triglycerides are linked to a higher risk of presenting FSD.

Preliminary results from this retrospective observational pilot study suggest that CPA and Leu in combination with TE are equally effective in the suppression of gonadotrophins and testosterone levels over 1 year. Whether the different effects on HDL-cholesterol may lead to long-term different cardiovascular safety profiles remains to be defined.