RT Journal Article T1 Acetate correlates with disability and immune response in multiple sclerosis A1 Perez-Perez, Silvia A1 Dominguez-Mozo, Maria Inmaculada A1 Alonso-Gomez, Aitana A1 Medina, Silvia A1 Villarubia, Noelia A1 Fernandez-Velasco, Jose Ignacio A1 Garcia-Martinez, Maria Angel A1 Garcia-Calvo, Estefania A1 Estévez Sánchez, Héctor A1 Costa-Frossard, Luciene A1 Alvarez-Cermeño, Jose C. A1 Luque García, José Luis A1 Arroyo, Rafael A1 Villar, Luisa M. A1 Alvarez-Lafuente, Roberto AB Background. Gut microbiota has been related to multiple sclerosis (MS) etiopathogenesis. Short-chain fatty acids (SCFA) are compounds derived from microbial metabolismthat have a role in gut-brain axis.Objectives. To analyse SCFA levels in plasma of MS patients and healthy donors (HD),and the possible link between these levels and both clinical data and immune cellpopulations.Methods. Ninety-five MS patients and 54 HD were recruited. Patients were selectedaccording to their score in the Expanded Disability Status Scale (EDSS) (49 EDSS ≤ 1.5,46 EDSS ≥ 5.0). SCFA were studied in plasma samples by liquid chromatography-massspectrometry. Peripheral blood mononuclear cells were studied by flow cytometry.Gender, age, treatments, EDSS and Multiple Sclerosis Severity Score (MSSS) wereevaluated at the recruitment.Results. Plasma acetate levels were higher in patients than in HD (p = 0.003). Patientswith EDSS ≥ 5.0 had higher acetate levels than those with EDSS≤ 1.5 (p = 0.029),and HD (p = 2.97e–4). Acetate levels correlated with EDSS (r = 0.387; p = 1.08e–4)and MSSS (r = 0.265;p = 0.011). In untreated MS patients, acetate levels correlatedinversely with CD4+ naïve T cells (r = −0.550,p = 0.001) and directly with CD8+IL-17+ cells (r = 0.557;p = 0.001).Conclusions. Plasma acetate levels are higher in MS patients than in HD. In MS thereexists a correlation between plasma acetate levels, EDSS and increased IL-17+ T cells.Future studies will elucidate the role of SCFA in the disease. YR 2020 FD 2020 LK https://hdl.handle.net/20.500.14352/105862 UL https://hdl.handle.net/20.500.14352/105862 LA eng NO Pérez-Pérez S, Domínguez-Mozo MI, Alonso-Gómez A, Medina S, Villarrubia N, Fernández-Velasco JI, García-Martínez MÁ, García-Calvo E, Estévez H, Costa-Frossard L, Alvarez-Cermeño JC, Luque-Garcia JL, Arroyo R, Villar LM, Alvarez-Lafuente R. 2020. Acetate correlates with disability and immune response in multiple sclerosis. PeerJ 8:e10220 https://doi.org/10.7717/peerj.10220 DS Docta Complutense RD 26 dic 2025