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. 2024 Jan;68(2):e2300183.
doi: 10.1002/mnfr.202300183. Epub 2023 Dec 7.

Microbial Phenolic Metabolites Are Associated with Improved Cognitive Health

Inés Domínguez-López  1   2   3 Polina Galkina  1 Isabella Parilli-Moser  1   2   3 Camila Arancibia-Riveros  1   2   3 Miguel Ángel Martínez-González  3   4   5 Jordi Salas-Salvadó  3   6   7 Dolores Corella  3   8 Mireia Malcampo  9 J Alfredo Martínez  3   10   11 Lucas Tojal-Sierra  3   12 Julia Wärnberg  3   13 Jesús Vioque  14   15 Dora Romaguera  3   16 José López-Miranda  3   17 Ramon Estruch  2   3   18 Francisco J Tinahones  3   19 José Manuel Santos-Lozano  3   20 Lluís Serra-Majem  3   21 Aurora Bueno-Cavanillas  16   22 Josep A Tur  3   23 María Rubín-García  24 Xavier Pintó  3   25 Fernando Fernández-Aranda  3   26 Miguel Delgado-Rodríguez  12   27 Ana Barabash-Bustelo  28 Josep Vidal  29   30 Clotilde Vázquez  3   31 Lidia Daimiel  3   32   33 Emilio Ros  3   34 Estefania Toledo  3   4   5 Alessandro Atzeni  3   6   7 Eva M Asensio  3   8 Natàlia Vera  9 Antonio Garcia-Rios  3   17 Laura Torres-Collado  14   15 Napoleón Pérez-Farinós  3   13 Marian Zulet  3   10   11 Alice Chaplin  3   16 Rosa Casas  2   3   18 Sandra Martín-Peláez  22 Jessica Vaquero-Luna  3   12 Ana Maria Gómez-Pérez  19 Zenaida Vázquez-Ruiz  3   4   5 Sangeetha Shyam  3   6   7 Carolina Ortega-Azorín  3   8 Natàlia Talens  9 Patricia J Peña-Orihuela  3   17 Alejandro Oncina-Canovas  14   15 Javier Diez-Espino  3   35 Nancy Babio  3   6   7 Montserrat Fitó  3   9 Rosa M Lamuela-Raventós  1   2   3
Affiliations

Microbial Phenolic Metabolites Are Associated with Improved Cognitive Health

Inés Domínguez-López et al. Mol Nutr Food Res. 2024 Jan.

Abstract

Scope: Diets rich in polyphenols has been associated with better cognitive performance. The aim of this study is to assess the relationship between microbial phenolic metabolites (MPM) in urine and cognition in the context of an older population at high cardiovascular risk.

Methods and results: A cross-sectional analysis is conducted in 400 individuals of the PREDIMED-Plus study. Liquid chromatography coupled to mass spectrometry is used to identify urinary MPM. Mediterranean diet (MedDiet) adherence is estimated with a 17-item questionnaire and cognitive function is evaluated with a battery of neuropsychological tests. Multivariable-adjusted linear regression models are fitted to assess the relationship of urinary MPM with the MedDiet and cognitive tests. Protocatechuic acid and enterolactone glucuronide are associated with higher adherence to the MedDiet. Regarding cognitive function, protocatechuic acid, vanillic acid glucuronide, 3-hydroxybenzoic acid, enterodiol glucuronide, and enterolactone glucuronide are directly associated with a global composite score of all the cognitive tests. Furthermore, protocatechuic acid and enterolactone glucuronide are associated with higher scores in the Mini-Mental State Examination, whereas enterodiol glucuronide is associated with improved Clock Drawing Test scores.

Conclusions: These results suggest that the MedDiet is linked to MPM associated with better cognitive performance in an older population.

Keywords: Mediterranean diet; PREDIMED-Plus; bioactive compounds; cognition; neurodegeneration.

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