Association between the indole pathway of tryptophan metabolism and subclinical depressive symptoms in obesity: a preliminary study
Autor: | Inês Delgado, Sofia Cussotto, Andrea Anesi, Sandra Dexpert, Agnès Aubert, Bruno Aouizerate, Cédric Beau, Damien Forestier, Patrick Ledaguenel, Eric Magne, Fulvio Mattivi, Lucile Capuron |
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Rok vydání: | 2021 |
Předmět: |
Inflammation
obesity Nutrition and Dietetics Indoles Depression indole pathway Endocrinology Diabetes and Metabolism Tryptophan indole-3-carboxaldehyde Medicine (miscellaneous) inflammation obesity metabolism tryptophan indole pathway indole-3-carboxaldehyde C-reactive protein C-reactive protein C-Reactive Protein inflammation Humans tryptophan Obesity Settore CHIM/10 - CHIMICA DEGLI ALIMENTI metabolism Kynurenine |
Zdroj: | International journal of obesity (2005). 46(4) |
ISSN: | 1476-5497 |
Popis: | Converging data support the role of chronic low-grade inflammation in depressive symptomatology in obesity. One mechanism likely to be involved relies on the effects of inflammation on tryptophan (TRP) metabolism. While recent data document alterations in the indole pathway of TRP metabolism in obesity, the relevance of this mechanism to obesity-related depressive symptoms has not been investigated. The aim of this preliminary study was to assess the association between plasma levels of TRP and indole metabolites and depressive symptoms in 44 subjects with severe or morbid obesity, free of clinically relevant neuropsychiatric disorders. The interaction effect of inflammation, reflected in serum high-sensitive C-reactive protein (hsCRP) levels, and indoles on depressive symptoms was also determined. Higher serum levels of hsCRP and lower concentrations of TRP and indoles, particularly indole-3-carboxaldehyde (IAld), correlated with more severe depressive symptoms. Interestingly, the effect of high hsCRP levels in predicting greater depressive symptoms was potentiated by low IAld levels. These results comfort the link between inflammation, the indole pathway of TRP metabolism, and obesity-related depressive symptoms. |
Databáze: | OpenAIRE |
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