Summarized by Masters of Longevity from Frontiers - Health.
A commercial C3c ELISA found undetectable C3c in all FI-deficient patients.

Key Takeaways
- Plasma C3c was undetectable in all six FI-deficient patients.
- Serum C3c testing reproduced separation across FI variant classes.
- C3d and iC3b were unreliable, likely showing cross-reactivity.



