Why does testosterone therapy decrease HDL cholesterol in some men?



James Semmens et al.
Metabolism
Volume 32, Issue 5, May 1983, Pages 428–432

Abstract


The significance of sex hormone levels in determining variation in high-density lipoprotein cholesterol (HDL-C) concentrations was studied in healthy Seventh Day Adventists (vegetarians) and Mormons. These groups were selected to avoid the confounding effects of alcohol consumption and cigarette smoking on HDL-C concentrations. Multivariate analysis showed that testosterone has a strong negative association with HDL-C in men (t = 3.99, P < 0.001) and women (t = 2.04, P < 0.05) when controlled for other variables including the concentration of sex-hormone-binding globulin (SHBG). Sex-hormone-binding globulin showed an independent positive association with HDL-C in men (P < 0.001). We postulate that the sex hormones affect HDL-C levels by regulating the activities of two important enzymes involved in the production and catabolism of HDL, namely, lipoprotein lipase and hepatic endothelial lipase. Other factors contributing independently to variation in HDL-C levels in this study were, in men, age and triglyceride, and in women, apoprotein-HDL, triglyceride, systolic blood pressure, heart rate, body mass index, and triceps skinfold thickness. Plasma estradiol concentrations were not significantly associated in either sex.

Testosterone (or Anastrozole?) Decreased my HDL: What Can I Do?

How to Increase Good Cholesterol (HDL)


 

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Understanding Your Hormones

Estradiol (E2)

A form of estrogen produced from testosterone. Important for bone health, mood, and libido. Too high can cause side effects; too low can affect well-being.

DHT

Dihydrotestosterone is a potent androgen derived from testosterone. Affects hair growth, prostate health, and masculinization effects.

Free Testosterone

The biologically active form of testosterone not bound to proteins. Directly available for cellular uptake and biological effects.

Scientific Reference

Lakshman KM, Kaplan B, Travison TG, Basaria S, Knapp PE, Singh AB, LaValley MP, Mazer NA, Bhasin S. The effects of injected testosterone dose and age on the conversion of testosterone to estradiol and dihydrotestosterone in young and older men. J Clin Endocrinol Metab. 2010 Aug;95(8):3955-64.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038

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