Propargylglycine (64165-64-6) is an irreversible inhibitor of the hydrogen sulfide biosynthesis enzyme, cystathione-γ-lyase. It inhibits H2S production in rat liver preparations (IC50=55 μM) and inhibits the rise in plasma H2S in rats with hemorrhagic shock2. Propargylglycine reduces inflammation in a rodent carrageenan-induced hindpaw edema model3 and ameliorates gentamycin-induced nephrotoxicity1.
1) Dam et al. (2012), Inhibition of cystathione gamma-lyase and the biosynthesis of endogenous hydrogen sulphide ameliorares gentamicin-induced nephrotoxicity; Eur. J. Pharmacol., 685 165
2) Mok et al. (2004), Role of hydrogen sulphide in haemorrhagic shock in the rat: protective effect of inhibitors of hydrogen sulphide biosynthesis; Br. J. Pharmacol., 143 881
3) Bhatia et al. (2005),Hydrogen sulphide is a mediator of carrageenan-induced hindpaw edema in the rat; Br. J. Pharmacol., 145 141