The association of hypotestosteronemia with coronary artery disease in men.

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Abstract
Hyperestrogenemia and hypotestosteronemia have been observed in association with myocardial infarction (MI) and its risk factors. To determine whether these abnormalities may be prospective for MI, estradiol and testosterone, as well as risk factors for MI, were measured in 55 men undergoing angiography who had not previously had an MI. Testosterone (r = -.36, P = .008) and free testosterone (r = -.49, P < .001) correlated negatively with the degree of coronary artery disease after controlling for age and body mass index. When the patient group was successively reduced to a final study group of 34 men by excluding the patients with other major disorders, the testosterone and free testosterone correlations persisted (r = -.43, P < .02 and r = -.62, P < .001, respectively). Neither estradiol nor the risk factors, except for high-density lipoprotein cholesterol, correlated with the degree of coronary artery disease in the final group. Testosterone correlated negatively with the risk factors fibrinogen, plasminogen activator inhibitor-1, and insulin and positively with high-density lipoprotein cholesterol. The correlations found in this study between testosterone and the degree of coronary artery disease and between testosterone and other risk factors for MI raise the possibility that in men hypotestosteronemia may be a risk factor for coronary atherosclerosis.