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    • Decreased testosterone, DHT and estradiol were associated with higher mortality in men.

      Temporal Changes in Androgens and Estrogens Are Associated With All-Cause and Cause-Specific Mortality in Older Men.
      Hsu B, et al. J Clin Endocrinol Metab. 2016.


      Abstract
      CONTEXT: The dynamic temporal relationship between changes in serum reproductive hormones and mortality in men has not been reported.

      OBJECTIVE: The objective of the study was to examine the relationship between progressive changes in circulating reproductive hormones over time with all-cause and cause-specific mortality in older men.

      DESIGN, SETTING, AND PARTICIPANTS: Community-dwelling men aged 70 years and older from the Concord Health and Ageing in Men Project study were assessed at baseline (2005-2007, n = 1705) and at 2-year (n = 1367) and 5-year follow-up (n = 958).

      MAIN OUTCOMES AND MEASURES: At all three time-points, T, DHT, estradiol (E2), and estrone (E1) were measured by liquid chromatography-tandem mass spectrometry, and SHBG, LH, and FSH were determined by immunoassay and calculated free T (cFT) was calculated. Mortality was ascertained through the state death registry. Statistical modeling was by general estimating equations with the Poisson regression.

      RESULTS: Serum T over time (relative risk [RR] per 1 SD decrease in concentration: 1.18, 95% confidence interval [CI] 1.05-1.32), DHT (RR 1.17, 95% CI 1.05-1.32), and E2 (RR 1.46, 95% CI 1.30-1.63) as well as cFT (RR 1.27, 95% CI 1.13-1.41) was associated with all-cause mortality. After adjusting for multiple covariables, the decline in serum T (RR 1.17, 95% CI 1.03-1.32), DHT (RR 1.17, 95% CI 1.03-1.32), and cFT (RR 1.13, 95% CI 1.08-1.19) remained significantly associated with all-cause mortality. Similar relationships were observed for cancer but not cardiovascular mortality. Progressive decline in serum E2 levels remained significantly associated with all-cause (RR 1.49, 95% CI 1.31-1.69), cancer (RR 1.82, 95% CI 1.45-2.28), and cardiovascular (RR 1.37, 95% CI 1.13-1.66) mortality, even after adjustment for covariables. Serum E1, LH, FSH, and SHBG were not associated with all-cause, cancer, or cardiovascular mortality.

      CONCLUSION: Dynamic temporal changes in serum T, cFT, DHT, and E2 (but not E1, LH, FSH, and SHBG) in older men are associated with all-cause and cause-specific mortality in distinct patterns.

      This article was originally published in forum thread: Decreased testosterone, DHT and estradiol were associated with higher mortality in men.
      Comments 2 Comments
      1. Joey786's Avatar
        Joey786 -
        It would be nice to see the raw data used for this study.
      1. Mike414311's Avatar
        Mike414311 -
        I had them inserted over 2 weeks ago. No change yet at all, wondering if I don't hit my levels nd feel better in a few weeks if I can supplement with shots. Or take shots bf this kicks in and the let month when it drops. It was $700 for 10 pellets, she said 6 month last time. I'm 43 with a 234 t, and free t in the single digits. I was just happy I was a candidate and could stop spending money on sarms and gnc things that didn't work
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