Resumen: Inflammatory bowel disease is a gut–brain axis disorder that comprises chronic inflammatory conditions affecting the gastrointestinal tract, where alterations in the mood of patients are common. Gut–brain axis is a bidirectional communication that link gut and brain. The close association between inflammatory bowel disease and neuroinflammation has far-reaching implications, as is increasingly recognized as a contributing factor to neuropsychiatric and neurodegenerative diseases. The increasing prevalence and high economic cost, together with the loss of life quality of people suffering from these diseases, point to the need to find alternatives to alleviate them. Exploring new therapeutic avenues prompts us to consider the potential benefits of milk fractions, taking advantage of the use of dairy by-products, such as whey and buttermilk. This study examines the impact of cow’s whey- and buttermilk-based formulas supplemented with bovine lactoferrin and milk fat globule membrane on the expression of cytokines, as well as on the components of immune and serotonergic system of the brain in a murine model of dextran sodium sulfate-induced colitis. Our results show the potential of these dairy by-products, especially whey, as functional foods in ameliorating neuroinflammation and safeguarding the central nervous system function amid the neurological complications induced or concomitant with intestinal inflammatory processes. Idioma: Inglés DOI: 10.1139/bcb-2024-0153 Año: 2024 Publicado en: BIOCHEMISTRY AND CELL BIOLOGY-BIOCHIMIE ET BIOLOGIE CELLULAIRE ISSN: 0829-8211 Financiación: info:eu-repo/grantAgreement/ES/DGA/A20-20R Financiación: info:eu-repo/grantAgreement/ES/DGA/A20-23R Financiación: info:eu-repo/grantAgreement/ES/MINECO/AGL2017-82987 Tipo y forma: Artículo (PostPrint) Área (Departamento): Área Anatom.Anatom.Patológ.Com (Dpto. Anatom.,Embri.Genét.Ani.) Área (Departamento): Área Fisiología (Dpto. Farmac.Fisiol.y Med.L.F.) Área (Departamento): Área Biología Celular (Dpto. Bioq.Biolog.Mol. Celular) Área (Departamento): Área Tecnología de Alimentos (Dpto. Produc.Animal Cienc.Ali.)