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  • Title: Elevated high sensitivity C-reactive protein levels in aging men with low testosterone.
    Author: Kaplan SA, Johnson-Levonas AO, Lin J, Shah AK, Meehan AG.
    Journal: Aging Male; 2010 Jun; 13(2):108-12. PubMed ID: 20001470.
    Abstract:
    OBJECTIVE: We examined baseline data from a lipid treatment study to assess the relationship between testosterone (T) and the cardiovascular inflammatory marker, high sensitivity C-reactive protein (hsCRP). METHODS: The baseline T, hsCRP, lipid, glycemic, and anthropometric data were obtained from 467 men (mean age: 52 years). Inclusion criteria included low-density lipoprotein cholesterol > or = 3.4 to 4.9 mmol/l and triglycerides < or = 4.0 mmol/l. The baseline hsCRP levels were examined across the following T subgroups: <6.9 nmol/l (moderate to severe hypogonadism), 6.9 to <10.4 nmol/l (mild to moderate hypogonadism), 10.4 to <15 nmol/l (low-normal T), and > or = 15 nmol/l (normal T). RESULTS: The median hsCRP levels were significantly (p = 0.041) different across the four T subgroups; patients in the lower T subgroups had higher median hsCRP levels than patients in the higher T subgroups. The percentage of men with elevated hsCRP (>2 mg/l) was also significantly (p = 0.038) different across the four T subgroups; 83% of men with T < 6.9 nmol/l had elevated hsCRP compared with 40% with T > or = 15 nmol/l. CONCLUSIONS: This analysis demonstrated an inverse relationship between serum T and hsCRP in aging men. Urologists need to be aware that low T levels may not only adversely affect sexual function but also may worsen cardiovascular risk in aging, hypogonadal men.
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