Carnosine and anserine were reported to inhibit tyrosine nitration. However, there are no reports on the nitration inhibitory activities of balenine, 2-oxo-carnosine, 2-oxo-anserine, and 2-oxo-balenine. We demonstrated for the first time that these compounds exhibit inhibitory activities against peroxynitrite-dependent tyrosine nitration. 2-Oxo-imidazole dipeptides (2-oxo-IDPs) showed higher inhibitory activity than their precursor IDPs, thereby suggesting that 2-oxo-IDPs may be effective against nitrative stress-related diseases.
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| http://dx.doi.org/10.1016/j.bbrc.2023.05.074 | DOI Listing |
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