Prostate Cancer: Bipolar Androgen Therapy (BAT)

madman

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Summary

Prostate Cancer Lab #56 focuses on Bipolar Androgen Therapy (BAT) as a potential treatment for castration-resistant prostate cancer. The therapy involves alternating between high-dose testosterone injections and the continuation of testosterone-suppressing drugs. BAT has shown positive results in some patients, but it may not be suitable for everyone.

Highlights

  • BAT has extended the lives of some patients and improved their quality of life.
  • PSA levels may initially increase before decreasing during BAT treatment, so it is important not to panic.
  • Response rates to BAT vary among patients, with approximately one-third experiencing a significant decline in PSA levels, one-third reaching a stable plateau, and one-third not responding to the therapy.
  • Genetic markers such as BRCA2 and p53 mutations may predict better responses to BAT.
  • The optimal timing for BAT treatment and the choice of hormone therapy are still areas of ongoing research and discussion.
 




 

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Predict estradiol, DHT, and free testosterone levels based on total testosterone

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This tool provides predictions based on statistical models and should NOT replace professional medical advice. Always consult with your healthcare provider before making any changes to your TRT protocol.

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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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