Endocrine Abstracts

Circumstances of life and food supply have changed in developed countries, resulting in an increasing prevalence of overweight. As a consequence, a complex disorder consisting of visceral obesity, dyslipidemia, insulin resistance and hypertension emerges: the so-called metabolic syndrome leads to the manifestation of diabetes type 2 and cardiovascular disease.In men, testosterone deficiency contributes to the generation of the metabolic syndrome, as demo...

Background: A reliable form of androgen substitution therapy in terms of favorable kinetics and tolerance as well as effective restoration of androgenicity is paramount for hypogonadal men. The i.m. injection of the long-acting ester testosterone undecanoate (TU) offers a convenient modality for testosterone substitution.Methods: We report data from 334 patients (147 with primary (including 38 Klinefelter patients), 100 with secondary hypogonadism and 87...

Objective: A reliable form of androgen substitution therapy in terms of favorable kinetics and tolerance as well as effective restoration of androgenicity is paramount in hypogonadal men. A new feasible modality is the intramuscular injection of the long-acting ester testosterone undecanoate (TU).Design: Analysis of safety data accumulated during 101 treatment-years in 66 hypogonadal men receiving altogether 510 injections of 1000 mg TU in 10–14-we...

A reliable form of androgen substitution therapy in terms of favorable kinetics and tolerance as well as effective restoration of androgenicity is paramount in hypogonadal men. A feasible modality is the intramuscular injection of the long-acting ester testosterone undecanoate (TU).We report data from 183 patients (99 with primary, 70 with secondary hypogonadism and 14 with late-onset hypogonadism) aged 15–70 years (mean 37±12 years) receiving ...

Background: Klinefelter syndrome (KS) is the most frequent genetic cause of male infertility. Individuals share the endocrine hallmark of hypergonadotropic hypogonadism, displaying high gonadotropin levels due to deficient testicular function. A single-nucleotide polymorphism (SNP) located within the FSHB promoter region (−211G>T, rs10835638) was recently shown to be associated with reduced serum FSH levels and other reproductive parameters in men. The objec...

Background: The rare 46, XX-male syndrome has to be distinguished from more frequent forms of hypogonadism, especially the Klinefelter syndrome (47, XXY). We report 11 cases of SRY-positive XX-males in comparison to 101 age-matched Klinefelter patients and 78 age-matched normal men in a case-control study.Methods: The comparison included results from the physical examination, endocrinological data, semen analysis, cytogenetic and molecular genetic findin...

Aim: To assess the relation between questionnaires of androgenic function (AMS and IIEF-EF scores) and sex hormones (DHT, estradiol and total and free testosterone) in men attending an outpatient clinic for endocrine and reproductive disorders.Methods: We retrospectively reviewed all data entered in the electronic database of the Münster Center of Reproductive Medicine and Andrology (CeRA) Androbase from patients visited between January 2015 and Oct...

Background: Men with type 2 diabetes mellitus (T2DM) have significantly lower levels of testosterone (T) than nondiabetic controls. But androgen deficit symptoms may be detected in males with normal T levels.Aim: To analyze parameters of lipid, carbohydrate metabolism and endothelial function in diabetic males with low normal and middle-to-high normative T levels.Patients and methods: We examined 86 men with T2DM and serum T levels...

Background: The concept of testosterone (T) supplementation (TS) as a new anti-obesity medication in men with testosterone deficiency syndrome (TDS) is emerging.Aim: To systematically review and meta-analyze available observational and register studies reporting data on body composition in studies on TS in TDS.Methods: An extensive Medline Embase and Cochrane search was performed including the following words: ‘testosterone&#1...

Background: The role of testosterone (T) in regulating body composition is conflicting.Aim: To meta-analyze the effects of T supplementation (TS) on body composition and metabolic outcomes.Methods: All randomized controlled trials (RCTs) comparing the effect of TS on different endpoints were considered.Results: Overall, 59 trials were included in the study enrolling 3029 and 2049 patients in TS and control gr...