Reactive oxygen species/reactive nitrogen species as messengers in the gut: impact on physiology and metabolic disorders
A Abot, S Fried, PD Cani, C Knauf - Antioxidants & Redox Signaling, 2022 - liebertpub.com
A Abot, S Fried, PD Cani, C Knauf
Antioxidants & Redox Signaling, 2022•liebertpub.comSignificance: The role of reactive oxygen/nitrogen species as “friend” or “foe” messengers in
the whole body is well characterized. Depending on the concentration in the tissue
considered, these molecular actors exert beneficial or deleterious impacts leading to a
pathological state, as observed in metabolic disorders such as type 2 diabetes and obesity.
Recent Advances: Among the tissues impacted by oxidation and inflammation in this
pathological state, the intestine is a site of dysfunction that can establish diabetic symptoms …
the whole body is well characterized. Depending on the concentration in the tissue
considered, these molecular actors exert beneficial or deleterious impacts leading to a
pathological state, as observed in metabolic disorders such as type 2 diabetes and obesity.
Recent Advances: Among the tissues impacted by oxidation and inflammation in this
pathological state, the intestine is a site of dysfunction that can establish diabetic symptoms …
Significance: The role of reactive oxygen/nitrogen species as “friend” or “foe” messengers in the whole body is well characterized. Depending on the concentration in the tissue considered, these molecular actors exert beneficial or deleterious impacts leading to a pathological state, as observed in metabolic disorders such as type 2 diabetes and obesity.
Recent Advances: Among the tissues impacted by oxidation and inflammation in this pathological state, the intestine is a site of dysfunction that can establish diabetic symptoms, such as alterations in the intestinal barrier, gut motility, microbiota composition, and gut/brain axis communication. In the intestine, reactive oxygen/nitrogen species (from the host and/or microbiota) are key factors that modulate the transition from physiological to pathological signaling.
Critical Issues: Controlling the levels of intestinal reactive oxygen/nitrogen species is a complicated balance between positive and negative impacts that is in constant equilibrium. Here, we describe the synthesis and degradation of intestinal reactive oxygen/nitrogen species and their interactions with the host. The development of novel redox-based therapeutics that alter these processes could restore intestinal health in patients with metabolic disorders.
Future Directions: Deciphering the mode of action of reactive oxygen/nitrogen species in the gut of obese/diabetic patients could result in a future therapeutic strategy that combines nutritional and pharmacological approaches. Consequently, preventive and curative treatments must take into account one of the first sites of oxidative and inflammatory dysfunctions in the body, that is, the intestine. Antioxid. Redox Signal. 37, 394–415.
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