cag repeat

  1. Nelson Vergel

    A New Frontier in Diagnosing Low Testosterone: The CAG Repeat Game-Changer

    Imagine going to your doctor, complaining of fatigue, low libido, and mood swings, only to be told your testosterone levels are "normal." Frustrating, right? Well, a groundbreaking study from the University of Sheffield and Barnsley Hospital might just change the game for millions of men...
  2. Seagal

    The role of testosterone, the androgen receptor, and hypothalamic-pituitary–gonadal axis in depression in ageing Men

    The role of testosterone, the androgen receptor, and hypothalamic-pituitary–gonadal axis in depression in ageing Men https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9789012/ Best review on this topic I have seen so far. Might be also very interesting for non-depressed ageing and young men. "In...
  3. Nelson Vergel

    Your Genetic CAG Repeat Number Determines How Well You Will Respond to Testosterone

    Androgen Receptor Gene CAG Repeat Polymorphism Independently Influences Recovery of Male Sexual Function After Testosterone Replacement Therapy in Postsurgical Hypogonadotropic Hypogonadism Tirabassi G, delli Muti N, Corona G, Maggi M, Balercia G. Androgen Receptor Gene CAG Repeat...
TRT Hormone Predictor Widget

TRT Hormone Predictor

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

⚠️ Medical Disclaimer

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.

ℹ️ Input Parameters

Normal range: 300-1000 ng/dL

Predicted Hormone Levels

Enter your total testosterone value to see predictions

Results will appear here after calculation

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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