Intimal hyperplasia is the thickening of the tunica intima of a blood vessel as a complication of a reconstruction procedure or endarterectomy.
[1] Intimal hyperplasia is the universal response of a vessel to injury.
Hydrogen sulfide (H2S) works as a vasculoprotective gasotransmitter in the human body but is also tested to reduced intimal hyperplasia.
There are different kinds of H2S donors: NaHS (the reference in scientific literature despite the fact it is too toxic to use it in human patients) and STS (already used in patient to treat cyanide poisoning).
This article about a medical condition affecting the circulatory system is a stub.