Abstract
The role of androgens on cognitive function and mood is not well documented yet. We therefore evaluated all male participants (n=247, mean age 75.7 years) of a population-based study regarding testosterone, dehydroepiandrosterone sulfate (DHEAS), depression and Alzheimer Dementia (AD) for 5 years using the DSM-IV and NINCDS–ADRDA criteria. At study entry, low serum testosterone levels (<350 ng per 100 ml) were present in 45 (30.8%), low DHEAS (<50 μg per 100 ml) in 44 (30.1%), depression in 11 (7.5%) and AD in 7 (4.7%) men. After 5 years, the number of men with low testosterone levels increased to 52 (+15.5%), for low DHEAS to 57 (+29.5%) for depression to 34 (+219%) and for AD to 43 (+515%). Testosterone levels were not associated to prevalence or incidence of depression or dementia. Mean testosterone was 398.1 ng per 100 ml in depressive men and 431.7 ng per 100 ml in those without depression (P=0.57) and 406.3 ng per 100 ml in those with AD versus 429.5 ng per 100 ml without AD (P=0.66).
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Ponholzer, A., Madersbacher, S., Rauchenwald, M. et al. Serum androgen levels and their association to depression and Alzheimer dementia in a cohort of 75-year-old men over 5 years: results of the VITA study. Int J Impot Res 21, 187–191 (2009). https://doi.org/10.1038/ijir.2009.10
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DOI: https://doi.org/10.1038/ijir.2009.10
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