March 2013 in “The Journal of Urology” Hair loss is linked to higher prostate-specific antigen levels and urinary symptoms, likely due to age.
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July 2016 in “The Prostate” Metformin may lower PSA levels, possibly affecting prostate cancer development.
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May 2013 in “Urology” Metabolic syndrome linked to urinary symptoms; hair loss not significant.
November 2007 in “Cancer Epidemiology and Prevention Biomarkers” Higher C-peptide levels in African-American men and higher HbA1c levels in Caucasian men are linked to lower PSA levels.
June 2006 in “American Journal of Epidemiology” Long-term diabetes is linked to lower prostate cancer risk.