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Dietary AGEs as Exogenous Boosters of Inflammation?

A special issue of Nutrients (ISSN 2072-6643).

Deadline for manuscript submissions: closed (30 June 2021) | Viewed by 7153

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Instituto de Investigación Biomédica de Lleida Fundación Dr. Pifarré, Lleida, Spain

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Dear Colleagues,
Advanced glycation endproducts (AGEs) are a heterogeneous family of compounds derived from the heat-catalyzed nonenzymatic reaction of reducing sugars with amino groups belonging to proteins. This set of chemical rearrangements comprises the so-called Maillard reaction. This reaction is essential for food chemistry, increasing palatability and rendering specific organoleptic properties to food, being part of the browning process. The same reaction also takes place, at a slower pace, in our bodies, controlled by glycemia and protein turnover. The accumulation of endogenous AGEs has been involved in several health problems, ranging from aging to the chronic complications of diabetes, some of them linked to inflammation.

Interestingly, exogenously produced AGEs employ the same transducers as endogenous AGEs, thereby stimulating the above-referenced processes’ pathogenesis. Significantly, though, these exogenous insult agents can be modulated by culinary and dietary practices, diminishing the inflammation burden. In this review, the authors will present scientific evidence for AGE-rich diets’ potential involvement as modifiable risk factors in non-communicable, highly prevalent diseases. This involvement is based on the pathogenic point of view, on the stimulation of inflammatory pathways. Therefore, the knowledge of this phenomenon constitutes novel leverage for better dietary advice to control non-communicable diseases.

Dr. Manuel Portero-Otín
Guest Editor

Dr. Jaime Uribarri

Co-Guest Editor

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Keywords

  • dietary AGEs
  • inflammation
  • non-communicable diseases

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Published Papers (1 paper)

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Review

15 pages, 509 KiB  
Review
Dietary AGEs as Exogenous Boosters of Inflammation
by Ma. Eugenia Garay-Sevilla, Armando Rojas, Manuel Portero-Otin and Jaime Uribarri
Nutrients 2021, 13(8), 2802; https://doi.org/10.3390/nu13082802 - 16 Aug 2021
Cited by 49 | Viewed by 6511
Abstract
Most chronic modern non-transmissible diseases seem to begin as the result of low-grade inflammation extending over prolonged periods of time. The importance of diet as a source of many pro-inflammatory compounds that could create and sustain such a low-grade inflammatory state cannot be [...] Read more.
Most chronic modern non-transmissible diseases seem to begin as the result of low-grade inflammation extending over prolonged periods of time. The importance of diet as a source of many pro-inflammatory compounds that could create and sustain such a low-grade inflammatory state cannot be ignored, particularly since we are constantly exposed to them during the day. The focus of this review is on specific components of the diet associated with inflammation, specifically advanced glycation end products (AGEs) that form during thermal processing of food. AGEs are also generated in the body in normal physiology and are widely recognized as increased in diabetes, but many people are unaware of the potential importance of exogenous AGEs ingested in food. We review experimental models, epidemiologic data, and small clinical trials that suggest an important association between dietary intake of these compounds and development of an inflammatory and pro-oxidative state that is conducive to chronic diseases. We compare dietary intake of AGEs with other widely known dietary patterns, such as the Mediterranean and the Dietary Approaches to Stop Hypertension (DASH) diets, as well as the Dietary Inflammation Index (DII). Finally, we delineate in detail the pathophysiological mechanisms induced by dietary AGEs, both direct (i.e., non-receptor-mediated) and indirect (receptor-mediated). Full article
(This article belongs to the Special Issue Dietary AGEs as Exogenous Boosters of Inflammation?)
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