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 immunoassay for detection of the reversal of the nonenzymatic crosslinking is also disclosed.

A invenção atual relaciona-se às composições e aos métodos para inibir e inverter o cross-linking nonenzymatic (envelhecimento da proteína). Conformemente, as composições são divulgadas que compreendem um agente capaz de inibir a formação de endproducts avançados do glycosylation de proteínas do alvo, e que invertem adicionalmente ligações transversais pré-formadas nos endproducts avançados do glycosylation cleaving as ligações transversais alfa-dicarbonyl-baseadas da proteína atuais nos endproducts avançados do glycosylation. Determinados agentes úteis são sais do thiazolium. O método compreende contatar a proteína do alvo com a composição. as aplicações industriais e therapeutic para a invenção envisioned, porque o envelhecimento da proteína do spoilage do alimento e do animal pode ser tratado. Um immunoassay para a deteção da reversão do crosslinking nonenzymatic é divulgado também.

 
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