Author, as appears in the article.: Llaurador-Coll, M; Rios, S; García-Gavilán, JF; Babio, N; Vilella, E; Salas-Salvadó, J
Department: Medicina i Cirurgia Bioquímica i Biotecnologia
URV's Author/s: Babio Sánchez, Nancy Elvira / García Gavilán, Jesús Francisco / LLAURADOR COLL, MARTÍ / Rios Azuara, Santiago / Salas Salvadó, Jorge / Vilella Cuadrada, Elisabet
Keywords: Protein extension assay Predimed-plus trial Older subjects Metabolic syndrome Cognitive impairment Cholesterol Body mass index protein extension assay predimed-plus trial older subjects metabolic syndrome impairment cohort cognitive impairment brain
Abstract: Cognitive impairment is present in a broad spectrum of medical conditions and in aging. Here, we aimed to identify plasma proteins related to cognitive function in a sample of older adults with overweight/obesity and metabolic syndrome. A total of 129 subjects (mean age 64.7 years; 36% females) were grouped according to low (l-GCF, N=65) or high (h-GCF, N=64) global cognitive function and matched according to education, sex, age, and body mass index. Cognitive performance was assessed using neuropsychological tests. Plasma levels of 92 neurology-related proteins were assessed using a proximity extension assay. An elastic net regression analysis was used to identify proteins more associated with cognitive performance. Additionally, the protein expression levels were compared between the two groups by means of a t-test with false discovery rate correction. Pearson correlations were used to assess associations between the protein levels and scores from the neurocognitive tests. Six proteins (alpha-2-MRAP, HAGH, Siglec-9, MDGA1, IL12, and EDA2R) were identified as potential contributors to cognitive performance, remaining significantly increased in l-GCF compared to h-GCF participants after correction for multiple testing. Negative correlations (r= -0.23 to -0.18, i.e., lower protein levels, higher cognitive function) were found between global cognitive function and Siglec-9, NMNAT1, HAGH, LXN, gal-8, alpha-2-MRAP, IL12, PDGF-R-alpha, NAAA, EDA2R, CLEC1B, and LAT. Mini-mental state examination z scores showed the strongest correlations with protein levels, specifically negative correlations with CLEC1b, LXN, LAT, PLXNB3, NMNAT1, gal-8, HAGH, NAAA, CTSS, EZR, KYNU, MANF (r=-0.38 to -0.26) and a positive correlation with ADAM23 (r= 0.26). In summary, we identified several plasma proteins that were significantly associated with cognitive performance in older adults with obesity and metabolic syndrome, although further research is needed to replicate the results in larger samples and to include a predictive perspective.© 2023. The Author(s).
Thematic Areas: Veterinary (miscellaneous) Geriatrics and gerontology Geriatrics & gerontology Complementary and alternative medicine Cardiology and cardiovascular medicine Aging
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: jesusfrancisco.garcia@urv.cat marti.llaurador@urv.cat elisabet.vilella@urv.cat marti.llaurador@urv.cat jesusfrancisco.garcia@urv.cat jordi.salas@urv.cat nancy.babio@urv.cat
Author identifier: 0000-0001-7095-7041 0000-0002-1887-5919 0000-0001-7095-7041 0000-0003-2700-7459 0000-0003-3527-5277
Record's date: 2024-08-03
Papper version: info:eu-repo/semantics/publishedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Geroscience.
APA: Llaurador-Coll, M; Rios, S; García-Gavilán, JF; Babio, N; Vilella, E; Salas-Salvadó, J (2023). Plasma levels of neurology-related proteins are associated with cognitive performance in an older population with overweight/obesity and metabolic syndrome. Geroscience, (), -. DOI: 10.1007/s11357-023-00764-y
Entity: Universitat Rovira i Virgili
Journal publication year: 2023
Publication Type: Journal Publications
Repositori URV