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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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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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The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
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Puberty is a critical phase, typically beginning between the ages of 8 and 13 in girls and 9 and 14 in boys, though timing can vary based on genetics, environmental factors, and overall health. This period is characterized by the development of secondary sexual characteristics and the attainment of reproductive potential. Endocrine changes underpin puberty, with hormonal surges of Luteinizing Hormone (LH) and Follicle-Stimulating Hormone (FSH) instigated by Gonadotropin-Releasing Hormone (GnRH)...
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Related Experiment Video

Updated: Apr 24, 2026

A Bioluminescent and Fluorescent Orthotopic Syngeneic Murine Model of Androgen-dependent and Castration-resistant Prostate Cancer
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[Updated relationship between testosterone and prostate cancer].

Zhong-Quan Sun, Zhi-Yuan Shen

    Zhonghua Nan Ke Xue = National Journal of Andrology
    |September 9, 2014
    PubMed
    Summary

    Testosterone levels do not appear to be a risk factor for prostate cancer. Instead, low testosterone may indicate a more advanced stage of the disease, complicating its known relationship with prostate cancer.

    Area of Science:

    • Oncology
    • Endocrinology
    • Urology

    Context:

    • Androgen deprivation therapy (ADT) is a standard treatment for prostate cancer.
    • Emerging evidence questions the established understanding of testosterone's role in prostate cancer.
    • Conventional wisdom suggests testosterone fuels prostate cancer growth.

    Purpose:

    • To critically evaluate the relationship between testosterone levels and prostate cancer.
    • To challenge the notion that high testosterone is a risk factor for prostate cancer.
    • To explore the implications of testosterone levels on disease pathology.

    Summary:

    • High testosterone levels are not associated with an increased risk or promotion of prostate cancer development.
    • Conversely, low testosterone levels correlate with worse pathological staging in prostate cancer patients.

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  • Current evidence does not strongly support a direct causal role for testosterone in prostate cancer initiation or progression.

    • Impact:

    • Findings suggest a complex interplay between testosterone and prostate cancer, necessitating a re-evaluation of treatment strategies.
    • Highlights the need for further research into the nuanced role of androgens in prostate cancer.
    • May influence clinical guidelines regarding testosterone monitoring and management in prostate cancer patients.