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Medicina (Buenos Aires)

versión impresa ISSN 0025-7680versión On-line ISSN 1669-9106


VOYER, Luis E  y  ALVARADO, Caupolicán. Reacción de Maillard: Efectos patogénicos. Medicina (B. Aires) [online]. 2019, vol.79, n.2, pp.137-143. ISSN 0025-7680.

Certain organoleptic modifications by way of processing and cooking foods at high temperatures in dry heat, make them especially appetizing and objects of addiction. It results from Maillard reaction, or glycation, consisting of the non-enzymatic union between carbonyl groups, mainly from reducing sugars as glucose and fructose, with the amino group of proteins and nucleic acids. In addition to physical changes, also the chemical structure and function of these compounds are changed. Besides exogenous glycation generated during the cooking of foods, recently in situ glycation has been reported in the intestinal lumen during digestion, when certain non-glycated foods are combined with fructose at the time of ingestion. In addition, endogenous glycation, which correlates in the extracellular mainly with blood glucose and in the intracellular with glycolysis metabolites and fructose, is specially significant. Since the 70s, with the frequent sucrose replacement by fructose, much more reactive than glucose, the presence of glycation products in processed foods and soft drinks increased.Pathogenic effects of these compounds, also called glycotoxins, are known to contribute to oxidative stress and inflammation. This increases progression of chronic diseases, well documented in diabetes, renal insuficiency, cardiovascular disease and aging process, and are being explore d in many other chronic diseases as neurodegenerative disorders and early aging. Based on the knowledge achieved so far, measures to preserve health are described by attending ways of cooking and processing foods, besides recommendations for life habits and antioxidants dietary intakes for inhibition or antagonism on glycotoxins.

Palabras clave : Maillard reaction; Glycation; Glycotoxins; Oxidative stress.

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