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The intricate hormonal interplay essential for male reproductive health begins with the release of gonadotropin-releasing hormone (GnRH) by the hypothalamus. This hormone prompts the pituitary gland to secrete follicle-stimulating hormone (FSH) and luteinizing hormone (LH). LH targets the Leydig cells in the testes, stimulating them to produce and release testosterone. In concert with testosterone, FSH acts on the Sertoli cells within the seminiferous tubules to facilitate the release of...
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Men's health issues are increasingly recognized as significant, with several conditions posing common threats. Among these, testicular cancer is especially prevalent in younger men, particularly those aged 20 to 35 years. The disease often manifests as a painless mass in the testicles, sometimes accompanied by a sensation of heaviness or a dull ache.
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Regression toward the mean (“RTM”) is a phenomenon in which extremely high or low values—for example, and individual’s blood pressure at a particular moment—appear closer to a group’s average upon remeasuring. Although this statistical peculiarity is the result of random error and chance, it has been problematic across various medical, scientific, financial and psychological applications. In particular, RTM, if not taken into account, can interfere when...
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Related Experiment Video

Updated: Jul 14, 2025

Establishment of Rat Models Mimicking Gender-affirming Hormone Therapies
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Major Study Affirming the Relative Safety of Testosterone-replacement Therapy.

Bruce Biundo1

  • 1Professional Compounding Centers of America. bbrxman@aol.com.

International Journal of Pharmaceutical Compounding
|October 10, 2023
PubMed
Summary

Testosterone replacement therapy is safe for men with low testosterone and cardiovascular disease. A major study found it poses no greater cardiovascular risk than a placebo.

Area of Science:

  • Cardiovascular Science
  • Endocrinology
  • Men's Health

Background:

  • Concerns exist regarding cardiovascular risks of testosterone replacement therapy (TRT).
  • Hypogonadal men with symptoms are often undertreated due to safety concerns.
  • Existing research has yielded conflicting results on TRT's cardiovascular safety.

Purpose of the Study:

  • To evaluate the cardiovascular safety of TRT in men with established cardiovascular disease or at high risk.
  • To determine if TRT increases adverse cardiovascular events compared to placebo.

Main Methods:

  • A large-scale research project involving men with cardiovascular disease or high cardiovascular risk.
  • Comparison of TRT group versus placebo group.
  • Monitoring of major adverse cardiovascular events.

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Main Results:

  • Testosterone replacement therapy was found to be non-inferior to placebo regarding cardiovascular safety.
  • No significant increase in cardiovascular events was observed in men receiving TRT.
  • The therapy did not worsen outcomes for men with pre-existing cardiovascular conditions.

Conclusions:

  • TRT can be considered a safe option for hypogonadal men with cardiovascular disease or at high risk.
  • The study alleviates concerns about TRT's cardiovascular safety in this patient population.
  • This finding supports improved quality of life for hypogonadal men through safe TRT.