Discovery of Rifampicin as a New Anti-Glycating Compound by Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry-Based Insulin Glycation Assay
Restricted accessResearch articleFirst published online April, 2010
Discovery of Rifampicin as a New Anti-Glycating Compound by Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry-Based Insulin Glycation Assay
An in vitro insulin glycation assay was developed for screening glycation inhibitors. The assay involves the use of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry for monitoring the formation of glycated insulin. The assay is simple, rapid and amenable for high throughput screening. Using this assay we have discovered a strong anti-glycation activity for the anti-tuberculosis drug rifampicin. These results were compared with bovine serum albumin glucose fluorescence assay. In addition, the IC50 of rifampicin was lower than that of aminoguanidine, a known anti-glycating agent, suggesting that rifampicin is a more potent glycation inhibitor.
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