Effects of short-term testosterone administration on variables of the metabolic syndrome, in particular aldosterone.

Unlabelled: Abstract Background: The ATPIII criteria of the metabolic syndrome (MS) comprise impaired fasting glucose (>5.6 nmol/L), waist circumference >102 cm, hypertension (>130/85 mm Hg), high triglycerides (>1.7 nmol/L) and low HDL cholesterol (≤1.

Testosterone and obesity in men under the age of 40 years.

The study assessed anthropometric and laboratory variables, in particular testosterone (T) in a group of obese men of <40 years. Of 60 men with a body mass index (BMI) of >27 kg m(-2), 34 met the criteria of the metabolic syndrome (MS). Twenty men <40 years (with a BMI <25 kg m(-2)) were studied for comparison.

Three definitions of metabolic syndrome applied to a sample of young obese men and their relation with plasma testosterone.

This study tested 60 men, aged <40 years, with a BMI 27-35 kg/m(2) to determine whether they had metabolic syndrome. The three definitions used to test this were from the National Cholesterol Education Program (NCEP), the World Health Organization (WHO) and the International Diabetes Federation (IDF). Further, the relationship between a positive definition and plasma testosterone (T) and calculated free T was analysed.

[Dehydroepiandrosterone and adrenarche].

The first report on increased production of 17-ketosteroids in healthy children before puberty was published by N. Talbot et al. in 1943.

Serum testosterone measurement in men: evaluation of modern immunoassay technologies.

Accurate measurement of serum testosterone (T) is essential for proper diagnosis of androgen deficiency. There are now several modern assay technologies, including automated ones, for measurement of T. In this study, we compared analytical performance of five modern immunoassay technologies commonly used for measurement of total T: Vitros ECi (Ortho-Clinical Diagnostics; normal range (n.

[Comparative analysis of the determination of serum testosterobe levels by different methods].

The serum concentration of total testosterone were measured in 100 male patients aged 19-65 years who had visited the clinic and polyclinic of the Endocrinology Research Center, Russian Academy of Medical Sciences for complaints about different dysfunctions of the endocrine glands. Testosterone was measured by the well-known currently available technologies: automatic Vitros ECi, Architect, and Access multianalyzers, manual Delfia and DRS enzyme immunoassay kits, and radioimmunoassay (RIA) that had been developed within the framework of the WHO Human Reproduction Programme and adjusted by the reference assay (gas chromatography/mass spectroscopy). The closest results were obtained when determining the level of testosterone by RIA and by means of the Vitros ECi multianalyzer (13.