Reference · Hormonal & Metabolic System

The Hormonal & Metabolic Cascade

An interactive map of the major hormonal axes, peripheral conversions, gut, erythroid, and RAAS / electrolyte signaling, and tissue-level effects — with pharmaceutical interventions traced through the network. Combine multiple drugs to see interactions, hover indicators to see which drugs contribute, or click any node to discover what raises or lowers it.

01 The Network
Hypothalamus GnRH · CRH · TRH · GHRH · DA DA ⊣ LH FSH ACTH TSH Prolactin GH PRL ⊣ GnRH Leydig cells testes · → T Sertoli cells testes · spermatogenesis Adrenal cortex → cortisol · DHEA Thyroid → T4 (mostly), T3 Liver → IGF-1, SHBG ⊣ feedback (T, E2, P) DHT Testosterone Estradiol Cortisol T3 (active) Progesterone IGF-1 5α-r aromatase Pancreas islets · → insulin, glucagon Insulin anabolic hormone Glucose blood sugar Catecholamines NE / Epi · sympathetic HR / BP cardiovascular tone Stomach fundus · → ghrelin Intestine L+K cells · → GLP-1, GIP, PYY Adipose tissue → leptin · aromatase Kidney cortex · → EPO Ghrelin GLP-1 GIP PYY Leptin Amylin EPO Reninkidney JG · BP/Na sensor Angiotensin IIvasoconstrictor · ↑ aldo Aldosteroneadrenal · Na↑ K↓ ADHvasopressin · H₂O ↑ SodiumNa⁺ · 135–145 PotassiumK⁺ · 3.5–5.0 ACE AT1R SHBG Free T fraction LDL / ApoB HDL Triglycerides Hb / Hct Ferritin Scalp hair Body / facial hair Prostate Acne / sebum Libido Erectile function Muscle Bone density Body fat Mood Cognition / drive BMR / metabolism Skin / collagen Appetite / hunger Gastric emptying Sleep
Pharmacological influences — click any chip to toggle that drug
Raised by ↑
Lowered by ↓
02 Simulated Lab Pattern
03 Pharmacological Interventions
Click any drug to add it · click again to remove · combine multiple to see interactions
Awaiting selection
Select a drug to trace its cascade
Each drug highlights nodes by effect type and magnitude. Color encodes intent (primary mechanism, benefit, adverse, incidental, or mixed for conflicts). Size encodes magnitude — mild (small), moderate (standard), or strong (large with halo). Hover any indicator to see which drugs contribute.