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oai:recercat.cat:2445/1990042025-12-04T22:34:48Zcom_2072_1057col_2072_478917col_2072_478931

Body mass index, systemic inflammation and cognitive performance in adolescents: A cross-sectional study Caldú i Ferrús, Xavier Prats Soteras, Xavier García-García, Isabel Prunell Castañé, Anna Sánchez-Garre, Consuelo Cano Marco, Neus Tor, Encarnació Sender Palacios, María José Ottino González, Jonatan Garolera i Freixa, Maite Jurado, Ma. Ángeles (María Ángeles) Pes corporal Obesitat en els adolescents Inflamació Cognició Funcions executives (Neuropsicologia) Adolescents Body weight Obesity in adolescence Inflammation Cognition Executive functions (Neuropsychology) Teenagers Background: Excessive body weight has been related to lower cognitive performance. One of the mechanisms through which excess body weight may affect cognition is inflammation. Hypothesis: Our hypothesis is that both body mass index (BMI) and circulating levels of inflammatory biomarkers will be negatively related to cognitive performance. Design: Cross-sectional study. Setting: Users of the public health centres of the Consorci Sanitari de Terrassa (Terrassa, Spain) between 2010 and 2017 aged 12-21 years. Participants: One hundred and five adolescents (46 normoweight, 18 overweight, 41 obese). Measurements: Levels of high sensitivity C-reactive protein, interleukin 6, tumour necrosis factor α (TNFα) and fibrinogen were determined from blood samples. Cognitive performance was evaluated and six cognitive com posites were obtained: working memory, cognitive flexibility, inhibitory control, decision-making, verbal memory, and fine motor speed. A single multivariate general lineal model was used to assess the influence of the four inflammatory biomarkers, as well as participants' BMI, sex, and age on the 6 cognitive indexes. Results: An inverse relationship between BMI and inhibitory control (F = 5.688, p = .019; β = − 0.212, p = .031), verbal memory (F = 5.404, p = .022; β = − 0.255, p = .009) and fine motor speed (F = 9.038, p = .003; β = − 0.319, p = .001) was observed. Levels of TNFα and fibrinogen were inversely related to inhibitory control (F = 5.055, p = .027; β = − 0.226, p = .021) and verbal memory (F = 4.732, p = .032; β = − 0.274, p = .005), respectively. Limitations: The cross-sectional nature of the study, the use of cognitive tests designed for clinical purposes, and the use of BMI as a proxy for adiposity are limitations of our study that must be taken into account when interpreting results. Conclusions: Our data indicate that some components of executive functions, together with verbal memory, are sensitive to specific obesity-related inflammatory agents at early ages. 2023-06-08T17:21:58Z 2024-05-23T05:10:16Z 2023-05-23 2023-06-08T17:21:58Z info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Versió postprint del document publicat a: https://doi.org/10.1016/j.psyneuen.2023.106298 Psychoneuroendocrinology, 2023, vol. 156, p. 106298 https://doi.org/10.1016/j.psyneuen.2023.106298 cc-by-nc-nd (c) Elsevier Ltd, 2023 https://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Elsevier Ltd Articles publicats en revistes (Psicologia Clínica i Psicobiologia)