Mast Cell Education

This vault is a self-directed biochemistry course built for people who want to understand mast cell biology from first principles. It assumes no biology background but doesn’t shy away from chemistry.

Guided Learning Path

Start with the fundamentals:

  1. Mast Cells — what they are, where they live, what they do
  2. Degranulation — what happens when a mast cell fires
  3. Histamine — the mediator everyone’s heard of (but doesn’t fully understand)
  4. Mast Cell Mediators — everything else that gets released

Understand the triggers: 5. IgE-Mediated Activation — classical allergy pathway 6. Non-IgE Activation Pathways — why you react to things that aren’t allergies 7. Total Mediator Load — the bucket model that explains variable reactions

Follow the food: 8. Dietary Histamine — histamine you eat 9. Histamine Liberators — foods that make your cells release histamine 10. Salicylates — a different inflammatory pathway entirely 11. Oxalates — where the science gets murkier

The enzyme layer: 12. DAO — the enzyme that clears histamine in the gut 13. HNMT — the enzyme that clears histamine inside cells 14. Histamine Intolerance — when your clearance can’t keep up

MCAS specifically: 15. MCAS — what it is, how it’s diagnosed, why it’s missed 16. HIT vs MCAS — two problems that look identical but aren’t

The body systems: 17. Symptom Mapping — connecting mediators to what you actually feel 18. Estrogen and Mast Cells — the hormonal amplifier 19. The Gut-Brain-Mast Cell Axis — why gut, brain, and immune are one system 20. The HPA Axis and Mast Cells — stress as a biochemical trigger, not a character flaw

The connected conditions: 21. The Trifecta — MCAS, POTS, and EDS 22. POTS — autonomic dysregulation and mast cells 23. EDS and Mast Cells — connective tissue as mast cell habitat 24. ASD and Mast Cells — emerging research on neuroinflammation 25. Sleep and Histamine — why nights are hard

What to do about it: 26. Medications Overview — how each drug class works at the biochemical level 27. Mast Cell Stabilizers — preventing the fire, not just fighting it 28. Living With Variable Reactivity — putting it all together

This is a learning tool, not medical advice.

The people reading this already know to work with their care team. This vault exists so they can be informed participants in that process.