Journal
FEBS JOURNAL
Volume 280, Issue 1, Pages 93-101Publisher
WILEY
DOI: 10.1111/febs.12052
Keywords
5 alpha-reductase isozymes; adult rat; androgens; environmental stress; prostatic diseases
Categories
Funding
- European Fund of Regional Development [FEDER-BFU2008-05340]
- Andalusian Regional Government (Endocrinology & Metabolism Group)
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The elevated incidence of prostate cancer and benign prostatic hypertrophy is a cause of increasing public health concern in the Western world. The normal and pathological growth of the prostate are both dependent on stimulation by dihydrotestosterone, which is synthesized from circulating testosterone by two 5a-reductase (5a-R) isozymes, 5a-reductase type 1 (5a-R1) and 5a-reductase type 2 (5a-R2). Both isozymes have been implicated in prostate disease. We used quantitative RT-PCR and immunohistochemistry, respectively, to quantify mRNA and protein levels of 5a-R isozymes in the ventral prostate of adult rats under environmental stress conditions analogous to those found in some common workplace situations, i.e. artificial light, excessive heat, and the sensation of immobility in a small space. Transcription and expression levels of both 5a-R isozymes were significantly higher in environmentally stressed rats than in unstressed rats. Increased 5a-R isozyme levels may play a role in the development or maintenance of prostate disease. Further research is warranted to explore these effects of environmental stress on human health and their implications for environmental and occupational health policies.
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