PMID- 31754388 OWN - NLM STAT- MEDLINE DCOM- 20200828 LR - 20200828 IS - 1838-7640 (Electronic) IS - 1838-7640 (Linking) VI - 9 IP - 26 DP - 2019 TI - The gut microbiota-inflammation-brain axis in end-stage renal disease: perspectives from default mode network. PG - 8171-8181 LID - 10.7150/thno.35387 [doi] AB - The gut-brain axis in end-stage renal disease (ESRD) is attracting more and more attention. However, the mechanism of gut-brain axis based cognitive disorders in ESRD patients remains unclear. The purpose of this study was to investigate the linkages between the gut microbiota, inflammatory cytokines, brain default mode network (DMN) and cognitive function in ESRD patients. Methods: This prospective study enrolled 28 ESRD patients (13 males and 15 females, mean age of 44 +/- 14 years) and 19 healthy controls (HCs) (12 males and 7 females, mean age of 44 +/- 10 years). All subjects underwent stool microbiota analysis, blood inflammatory cytokines examination, brain MRI scans and cognitive assessments. Resting state functional MRI (rs-fMRI) data were used to construct DMN and graph theory was applied to characterize network topological properties. Two samples t-test was applied for the comparisons between ESRD and HCs. Correlation analysis and mediation analysis were conducted among factors with significant group differences. Results: ESRD patients displayed gut microbiota alterations, increased systemic inflammation and worse cognitive performance compared to HCs (all p < 0.05). Graph analysis revealed disrupted DMN topological organization, aberrant nodal centralities and functional connectivities (FCs) in ESRD patients relative to HCs (all p < 0.05, FDR corrected). Significant correlations were found between gut microbiota, inflammatory cytokines, DMN network measures and cognitive assessments. Mediation analysis found that gut microbiota alteration impaired DMN connectivity by increasing systemic inflammation. Conclusion: The present study first revealed gut microbiota alterations, systemic inflammation, DMN dissociation and cognitive dysfunction in ESRD patients simultaneously and further illuminated their inner relationship. CI - (c) The author(s). FAU - Wang, Yun Fei AU - Wang YF AD - Department of Medical Imaging, Medical Imaging Center, Jinling Hospital, Medical School of Nanjing University, 305 Zhongshan East Road, Xuanwu District, Nanjing, Jiangsu Province, 210002, China. FAU - Zheng, Li Juan AU - Zheng LJ AD - Department of Medical Imaging, Medical Imaging Center, Jinling Hospital, Medical School of Nanjing University, 305 Zhongshan East Road, Xuanwu District, Nanjing, Jiangsu Province, 210002, China. FAU - Liu, Ya AU - Liu Y AD - Department of Medical Imaging, Medical Imaging Center, Jinling Hospital, Medical School of Nanjing University, 305 Zhongshan East Road, Xuanwu District, Nanjing, Jiangsu Province, 210002, China. FAU - Ye, Yu Bing AU - Ye YB AD - Department of Medical Imaging, Medical Imaging Center, Jinling Hospital, Medical School of Nanjing University, 305 Zhongshan East Road, Xuanwu District, Nanjing, Jiangsu Province, 210002, China. FAU - Luo, Song AU - Luo S AD - Department of Medical Imaging, Medical Imaging Center, Jinling Hospital, Medical School of Nanjing University, 305 Zhongshan East Road, Xuanwu District, Nanjing, Jiangsu Province, 210002, China. FAU - Lu, Guang Ming AU - Lu GM AD - Department of Medical Imaging, Medical Imaging Center, Jinling Hospital, Medical School of Nanjing University, 305 Zhongshan East Road, Xuanwu District, Nanjing, Jiangsu Province, 210002, China. FAU - Gong, Dehua AU - Gong D AD - National Clinical Research Center of Kidney Disease, Jinling Hospital, Medical School of Nanjing University, 305 Zhongshan East Road, Xuanwu District, Nanjing, Jiangsu Province, 210002, China. FAU - Zhang, Long Jiang AU - Zhang LJ AD - Department of Medical Imaging, Medical Imaging Center, Jinling Hospital, Medical School of Nanjing University, 305 Zhongshan East Road, Xuanwu District, Nanjing, Jiangsu Province, 210002, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20191018 PL - Australia TA - Theranostics JT - Theranostics JID - 101552395 RN - 0 (Cytokines) SB - IM MH - Adult MH - Brain/*pathology MH - Brain Mapping MH - Cognitive Dysfunction/physiopathology MH - Cytokines/analysis MH - Female MH - *Gastrointestinal Microbiome MH - Humans MH - Inflammation/physiopathology MH - *Kidney Failure, Chronic/microbiology/pathology MH - Magnetic Resonance Imaging MH - Male MH - Middle Aged MH - Prospective Studies PMC - PMC6857049 OTO - NOTNLM OT - default mode network OT - end-stage renal disease OT - gut microbiota OT - inflammatory cytokine OT - resting state fMRI COIS- Competing Interests: The authors have declared that no competing interest exists. EDAT- 2019/11/23 06:00 MHDA- 2020/08/29 06:00 PMCR- 2019/01/01 CRDT- 2019/11/23 06:00 PHST- 2019/04/01 00:00 [received] PHST- 2019/09/11 00:00 [accepted] PHST- 2019/11/23 06:00 [entrez] PHST- 2019/11/23 06:00 [pubmed] PHST- 2020/08/29 06:00 [medline] PHST- 2019/01/01 00:00 [pmc-release] AID - thnov09p8171 [pii] AID - 10.7150/thno.35387 [doi] PST - epublish SO - Theranostics. 2019 Oct 18;9(26):8171-8181. doi: 10.7150/thno.35387. eCollection 2019.