The present invention relates to compositions and methods for inhibiting and reversing nonenzymatic cross-linking (protein aging). Accordingly, compositions are disclosed which comprise an agent capable of inhibiting the formation of advanced glycosylation endproducts of target proteins, and which additionally reverse pre-formed crosslinks in the advanced glycosylation endproducts by cleaving alpha-dicarbonyl-based protein crosslinks present in the advanced glycosylation endproducts. Certain agents useful are thiazolium salts. The method comprises contacting the target protein with the composition. Both industrial and therapeutic applications for the invention are envisioned, as food spoilage and animal protein aging can be treated. A novel immunoassay for detection of the reversal of the nonenzymatic crosslinking is also disclosed.
                            本发明涉及抑制和逆转非酶交联(蛋白质老化)的组合物和方法。因此,本发明公开了包含能够抑制目标蛋白质晚期糖基化终产物形成的制剂的组合物,以及通过裂解晚期糖基化终产物中存在的基于α-二羰基的蛋白质交联,逆转晚期糖基化终产物中预先形成的交联的组合物。某些有用的制剂是
噻唑盐。该方法包括将目标蛋白质与组合物接触。本发明既可用于工业,也可用于治疗,因为食品变质和动物蛋白老化都可以得到治疗。本发明还公开了一种检测非酶交联逆转的新型免疫测定法。