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Biochim Biophys Acta. 1995 May 29;1267(1):41-4.

Reaction of nitric oxide and its derivatives with sulfites: a possible role in sulfite toxicity.

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Department of Biochemistry, University of Minnesota, St. Paul 55108, USA.


The reaction between sulfites and nitric oxide or proposed carriers of nitric oxide (nitrosylated bovine serum albumin and S-nitrosoglutathione) was investigated as a potential source of the adverse effects of sulfites on biological systems. Rapid reaction occurred between sulfites and all of these reagents. Also, the ability of nitric oxide and these carriers of nitric oxide to inhibit platelet aggregation was reversed by low concentrations of sulfites. Counteraction of nitric oxide's ability to function in cell signaling processes may be a major cause of sulfite toxicity.

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