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🧬 The Male HPG Axis: Testosterone's Feedback Loop

Testosterone:
LH:
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🧬 The Male HPG Axis: Testosterone's Feedback Loop

This simulator demonstrates how GnRH, LH, FSH, testosterone, and inhibin interact through a closed-loop feedback system to regulate male hormone production and fertility.

🔬 What It Demonstrates

This simulator demonstrates how GnRH, LH, FSH, testosterone, and inhibin interact through a closed-loop feedback system to regulate male hormone production and fertility.

🎮 How to Use

Adjust hormone inputs or introduce exogenous testosterone to see in real time how the hypothalamus, pituitary, and testes respond and rebalance across the feedback loop.

💡 Did You Know?

Continuous, non-pulsatile GnRH exposure actually suppresses the pituitary rather than stimulating it, which is the exact mechanism doctors exploit with GnRH agonist medications.