PMID- 35269702 OWN - NLM STAT- MEDLINE DCOM- 20220408 LR - 20230308 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 23 IP - 5 DP - 2022 Feb 25 TI - Imbalances in TCA, Short Fatty Acids and One-Carbon Metabolisms as Important Features of Homeostatic Disruption Evidenced by a Multi-Omics Integrative Approach of LPS-Induced Chronic Inflammation in Male Wistar Rats. LID - 10.3390/ijms23052563 [doi] LID - 2563 AB - Chronic inflammation is an important risk factor in a broad variety of physical and mental disorders leading to highly prevalent non-communicable diseases (NCDs). However, there is a need for a deeper understanding of this condition and its progression to the disease state. For this reason, it is important to define metabolic pathways and complementary biomarkers associated with homeostatic disruption in chronic inflammation. To achieve that, male Wistar rats were subjected to intraperitoneal and intermittent injections with saline solution or increasing lipopolysaccharide (LPS) concentrations (0.5, 5 and 7.5 mg/kg) thrice a week for 31 days. Biochemical and inflammatory parameters were measured at the end of the study. To assess the omics profile, GC-qTOF and UHPLC-qTOF were performed to evaluate plasma metabolome; 1H-NMR was used to evaluate urine metabolome; additionally, shotgun metagenomics sequencing was carried out to characterize the cecum microbiome. The chronicity of inflammation in the study was evaluated by the monitoring of monocyte chemoattractant protein-1 (MCP-1) during the different weeks of the experimental process. At the end of the study, together with the increased levels of MCP-1, levels of interleukin-6 (IL-6), tumour necrosis factor alpha (TNF-alpha) and prostaglandin E2 (PGE2) along with 8-isoprostanes (an indicative of oxidative stress) were significantly increased (p-value < 0.05). The leading features implicated in the current model were tricarboxylic acid (TCA) cycle intermediates (i.e., alpha-ketoglutarate, aconitic acid, malic acid, fumaric acid and succinic acid); lipids such as specific cholesterol esters (ChoEs), lysophospholipids (LPCs) and phosphatidylcholines (PCs); and glycine, as well as N, N-dimethylglycine, which are related to one-carbon (1C) metabolism. These metabolites point towards mitochondrial metabolism through TCA cycle, beta-oxidation of fatty acids and 1C metabolism as interconnected pathways that could reveal the metabolic effects of chronic inflammation induced by LPS administration. These results provide deeper knowledge concerning the impact of chronic inflammation on the disruption of metabolic homeostasis. FAU - Hernandez-Baixauli, Julia AU - Hernandez-Baixauli J AUID- ORCID: 0000-0002-9166-4173 AD - Eurecat, Centre Tecnologic de Catalunya, Unitat de Nutricio i Salut, 43204 Reus, Spain. FAU - Abasolo, Nerea AU - Abasolo N AD - Eurecat, Centre Tecnologic de Catalunya, Centre for Omic Sciences (COS), Joint Unit Universitat Rovira i Virgili-EURECAT, 43204 Reus, Spain. FAU - Palacios-Jordan, Hector AU - Palacios-Jordan H AUID- ORCID: 0000-0002-8628-0765 AD - Eurecat, Centre Tecnologic de Catalunya, Centre for Omic Sciences (COS), Joint Unit Universitat Rovira i Virgili-EURECAT, 43204 Reus, Spain. FAU - Foguet-Romero, Elisabet AU - Foguet-Romero E AD - Eurecat, Centre Tecnologic de Catalunya, Centre for Omic Sciences (COS), Joint Unit Universitat Rovira i Virgili-EURECAT, 43204 Reus, Spain. FAU - Sunol, David AU - Sunol D AD - Eurecat, Centre Tecnologic de Catalunya, Digital Health, 08005 Barcelona, Spain. FAU - Galofre, Mar AU - Galofre M AD - Eurecat, Centre Tecnologic de Catalunya, Digital Health, 08005 Barcelona, Spain. FAU - Caimari, Antoni AU - Caimari A AUID- ORCID: 0000-0001-6144-0294 AD - Eurecat, Centre Tecnologic de Catalunya, Unitat de Nutricio i Salut, 43204 Reus, Spain. FAU - Baselga-Escudero, Laura AU - Baselga-Escudero L AD - Eurecat, Centre Tecnologic de Catalunya, Unitat de Nutricio i Salut, 43204 Reus, Spain. FAU - Del Bas, Josep M AU - Del Bas JM AUID- ORCID: 0000-0002-0700-2004 AD - Eurecat, Centre Tecnologic de Catalunya, Unitat de Nutricio i Salut, 43204 Reus, Spain. FAU - Mulero, Miquel AU - Mulero M AUID- ORCID: 0000-0003-2545-2065 AD - Department of Biochemistry and Biotechnology, Universitat Rovira i Virgili, 43007 Tarragona, Spain. AD - Nutrigenomics Research Group, Department of Biochemistry and Biotechnology, Universitat Rovira i Virgili, 43007 Tarragona, Spain. LA - eng GR - PRIV2019-PREVENTOMICS/Accio-Eurecat/ GR - TECNOMIFOOD project. CER-20191010./Spanish Ministry of Science and Innovation/ PT - Journal Article DEP - 20220225 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 0 (Fatty Acids) RN - 0 (Lipopolysaccharides) RN - 7440-44-0 (Carbon) SB - IM MH - Animals MH - Carbon MH - *Fatty Acids MH - Homeostasis MH - Humans MH - Inflammation MH - *Lipopolysaccharides/toxicity MH - Male MH - Metabolome MH - Rats MH - Rats, Wistar PMC - PMC8910732 OTO - NOTNLM OT - biomarker OT - chronic inflammation OT - energy metabolism OT - lipopolysaccharide OT - metabolome OT - microbiome OT - mitochondria OT - one-carbon metabolism COIS- The authors declare no conflict of interest. EDAT- 2022/03/11 06:00 MHDA- 2022/04/09 06:00 PMCR- 2022/02/25 CRDT- 2022/03/10 15:35 PHST- 2021/12/21 00:00 [received] PHST- 2022/02/21 00:00 [revised] PHST- 2022/02/23 00:00 [accepted] PHST- 2022/03/10 15:35 [entrez] PHST- 2022/03/11 06:00 [pubmed] PHST- 2022/04/09 06:00 [medline] PHST- 2022/02/25 00:00 [pmc-release] AID - ijms23052563 [pii] AID - ijms-23-02563 [pii] AID - 10.3390/ijms23052563 [doi] PST - epublish SO - Int J Mol Sci. 2022 Feb 25;23(5):2563. doi: 10.3390/ijms23052563.