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Deprecated: Implicit conversion from float 247.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Ann+N+Y+Acad+Sci 2016 ; 1374 (1): 29-40 Nephropedia Template TP
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Developing effective countermeasures against acute hydrogen sulfide intoxication: challenges and limitations #MMPMID26945701
Haouzi P; Sonobe T; Judenherc-Haouzi A
Ann N Y Acad Sci 2016[Jun]; 1374 (1): 29-40 PMID26945701show ga
Hydrogen sulfide (H2S) is a chemical hazard in the gas and farming industry. As it is easy to manufacture from common chemicals, it has also become a method of suicide. H2S exerts its toxicity through its high affinity with metallo-proteins, such as cytochrome c oxidase and possibly via its interactions with cysteine residues of various proteins. The latter was recently proposed to acutely alter ion channels with critical implications for cardiac and brain functions. Indeed, during severe H2S intoxication, a coma, associated with a reduction in cardiac contractility, develops within minutes or even seconds leading to death by complete electro-mechanical dissociation of the heart. In addition, long-term neurological deficits can develop due to the direct toxicity of H2S on neurons combined with the consequences of a prolonged apnea and circulatory failure. Here, we review the challenges impeding efforts to offer an effective treatment against H2S intoxication using agents that trap free H2S, and present novel pharmacological approaches aimed at correcting some of the most negative consequences of H2S intoxication.