Format

Send to

Choose Destination
Mol Cell Endocrinol. 2015 Dec 15;418 Pt 2:120-33. doi: 10.1016/j.mce.2015.06.031. Epub 2015 Jul 2.

Obesity and late-onset hypogonadism.

Author information

1
Endocrinology Unit, Maggiore-Bellaria Hospital, Medical Department, Azienda-Usl Bologna, Bologna, Italy.
2
Sexual Medicine and Andrology Unit, Department of Experimental, Clinical and Biomedical Sciences, University of Florence, Florence, Italy.
3
Diabetes Agency, Careggi Hospital, Florence, Italy.
4
Sexual Medicine and Andrology Unit, Department of Experimental, Clinical and Biomedical Sciences, University of Florence, Florence, Italy. Electronic address: m.maggi@dfc.unifi.it.

Abstract

Obesity and male hypogonadism (HG) are often associated, as demonstrated in all cross-sectional studies. Prospective studies have indicated that i) having HG at baseline increases the risk of visceral obesity (and metabolic syndrome) and that ii) obesity induces incident HG. Hence, there is a bidirectional relationship between the two conditions. This is the main topic of this review, along with some pathogenic considerations. Meta-analysis of intervention studies indicates that treating obesity is a very efficient treatment for obesity-induced HG. The mechanism by which obesity induces HG has not yet been completely understood, but dietary-induced hypothalamic inflammation, along with a decreased GnRH release, is plausible. Among patients seeking medical care for obesity, the proportion of HG is relatively high. The prevalence of obesity among patients referring for sexual dysfunction is also elevated. Hence, in symptomatic, obese, hypogonadal subjects, testosterone supplementation (TS) can be considered. Whereas long-term uncontrolled register studies suggest that TS could decrease weight, analysis of controlled studies only support a parallel increase in lean mass and decrease in fat mass, with a resulting null effect on weight. Considering that T induces an increase in muscle mass, it is conceivable that the amount of activity obese people can undertake after TS will increase, allowing a closer adherence to physical exercise programs. Some studies, here meta-analyzed, support this concept.

KEYWORDS:

Erectile dysfunction; Late onset hypogonadism; Obesity; Testosterone

PMID:
26143633
DOI:
10.1016/j.mce.2015.06.031
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center