الفهرس | Only 14 pages are availabe for public view |
Abstract Insulin resistance has been assumed increasing importance as a risk factor for cardiovascular disease coincident with the dramatic increase in the prevalence of obesity and diabetes. Several observation studies have reported an association of insulin resistance with low serum testosterone level in men (Ender et al., 1996, Oh et al., 2002, Elaine et al., 2004). A link between testosterone deficiency and diabetes has also been suggested with the demonstration that men with type 2 diabetes have lower testosterone level than weight-matched non diabetic control subjects (Andersson, 1994). In addition low testosterone may predict development of type 2 diabetes in men (Laaksonen et al., 2003). In men, hypogonadism is associated with features of the metabolic syndrome but the role of sex hormones in the pathogenesis of the metabolic syndrome and diabetes is not well understood in contrast to the abundant is literature on this relationship in women. Given that low testosterone level is associated with metabolic syndrome and type 2 diabetes mellitus and that aging is accompanied by insulin resistance and decline in testosterone secretion (Morley et al., 1997), we hypothesized that testosterone is an important modulator of insulin sensitivity. |