Adaptation to acute coronary syndrome-induced stress with lowering of testosterone: a possible survival factor. Issue 4 (April 2016)

• Record Type: Journal Article
• Authors: Pesonen, Erkki; Pussinen, Pirkko; Huhtaniemi, Ilpo
• Is Part Of: European journal of endocrinology. Volume 174:Issue 4(2016)
• Page Start: 481
• Page End: 489
• Publication Date: 2016-04
• Subjects: Endocrinology -- Periodicals; 616.4005
• DOI: 10.1530/EJE-15-0757
• Languages: English
• ISSNs: 0804-4643

Abstract

Abstract : Objective: The objective of this study was to explore whether circulating testosterone (T) concentration is associated with the occurrence and risk for acute coronary syndromes (ACS). Method: This case–control study included male patients with acute myocardial infarction (AMI) ( n =174) or unstable angina pectoris (UAP) ( n =90) and healthy controls ( n =238). Patients gave serum samples during the acute ( n =264) and recovery ( n =132) phases after a median of 10.5 months after the incident event. Secondary events (ACS or cardiovascular death) were registered during the following 6 years. Results: During the acute phase, AMI and UAP patients had similar significantly reduced concentrations of serum testosterone in comparison to controls. Testosterone associated inversely with weight, the degree of inflammation (i.e. C-reactive protein concentration) and signs of a chronic infection. In a multiadjusted Cox regression, when compared to testosterone concentrations considered high-normal (14.91–34.0 nmol/l), low-normal testosterone (9.26–14.90 nmol/l) in the acute phase predicted better prognosis for cardiovascular death rate with a hazard ratio (HR) of 0.17 (0.04–0.68, P =0.012). The increased testosterone concentrations after the recovery period did not associate with future cardiovascular disease events. Conclusion: Low-normal testosterone levels in the acute phase of ACS predicted better survival. The observation may indicate better adaptation to stress in survivors and warrants further study.