Subclinical peripheral inflammation has systemic effects impacting central nervous system proteome in budgerigars Voukali, Eleni Gómez Samblás, María Mercedes Kuttiyarthu Veetil, Nithya Krajzingrová, Tereza Tesicky, Martin Li, Tao Melepat, Balraj Vinkler, Michal Cerebrospinal fluid Dextran sulphate sodium Endotoxin Parrot Plasma Proteomics Regulation of neuroimmune interactions varies across avian species. Little is presently known about the interplay between periphery and central nervous system (CNS) in parrots, birds sensitive to neuroinflammation. Here we investigated the systemic and CNS responses to dextran sulphate sodium (DSS)- and lipopolysaccharide (LPS)-induced subclinical acute peripheral inflammation in budgerigar (Melopsittacus undulatus). Three experimental treatment groups differing in DSS and LPS stimulation were compared to controls. Individuals treated with DSS showed significant histological intestinal damage. Through quantitative proteomics we described changes in plasma (PL) and cerebrospinal fluid (CSF) composition. In total, we identified 180 proteins in PL and 978 proteins in CSF, with moderate co-structure between the proteomes. Between treatments we detected differences in immune, coagulation and metabolic pathways. Proteomic variation was associated with the levels of pro-inflammatory cytokine mRNA expression in intestine and brain. Our findings shed light on systemic impacts of peripheral low-grade inflammation in birds. 2025-09-11T07:28:39Z 2025-09-11T07:28:39Z 2024-10 journal article Voukali E, Divín D, Samblas MG, Veetil NK, Krajzingrová T, Těšický M, Li T, Melepat B, Talacko P, Vinkler M. Subclinical peripheral inflammation has systemic effects impacting central nervous system proteome in budgerigars. Dev Comp Immunol. 2024 Oct;159:105213. doi: 10.1016/j.dci.2024.105213. Epub 2024 Jun 14. PMID: 38880215. https://hdl.handle.net/10481/106233 10.1016/j.dci.2024.105213 eng http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 Internacional Elsevier