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Testosterone in obesity, metabolic syndrome and type 2 diabetes

R Stanworth1, T Jones

  • 1Centre for Diabetes and Endocrinology, Barnsley Hospital NHS Foundation Trust, Barnsley, and Academic Unit of Diabetes, Endocrinology and Metabolism, University of Sheffield Medical School, Sheffield, UK.

Frontiers of Hormone Research
|November 18, 2008
PubMed

Insights

Low testosterone is linked to obesity, metabolic syndrome, and type 2 diabetes. Testosterone replacement therapy may improve body fat, insulin resistance, and glycemic control in men with hypogonadism.

Area of Science:

  • Endocrinology
  • Metabolic Health
  • Men's Health

Background:

  • Reduced testosterone levels are prevalent in obesity, metabolic syndrome, and type 2 diabetes.
  • Low testosterone is an independent risk factor for these metabolic conditions.
  • Androgen suppression in prostate cancer patients leads to increased body fat and insulin levels, highlighting the impact of hypogonadism.

Purpose of the Study:

  • To review the current evidence on the relationship between testosterone levels and metabolic health.
  • To evaluate the effects of testosterone replacement therapy (TRT) on body composition, insulin resistance, and glycemic control.
  • To inform clinical practice regarding the management of hypogonadism in men with metabolic disorders.

Main Methods:

  • Review of clinical trial data and findings from men undergoing androgen suppression.
  • Analysis of studies investigating testosterone replacement therapy outcomes.
  • Assessment of evidence regarding body fat mass, serum insulin, insulin resistance, and glycemic control.

Main Results:

  • Testosterone deficiency is associated with increased body fat mass and elevated serum insulin.
  • Testosterone replacement therapy demonstrates reductions in body fat mass.
  • Clinical trials suggest improvements in insulin resistance and glycemic control with TRT.

Conclusions:

  • Low testosterone is a significant risk factor for metabolic dysfunction.
  • Testosterone replacement therapy shows promise in improving metabolic parameters.
  • Larger trials are needed to confirm these findings and assess long-term cardiovascular benefits. Physicians should screen for hypogonadism in men with diabetes.

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