{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,22]],"date-time":"2026-10-22T15:49:10Z","timestamp":1792684150659,"version":"4.5.0"},"reference-count":100,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2023,3,1]],"date-time":"2023-03-01T00:00:00Z","timestamp":1677628800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Background: A bidirectional kidney\u2013gut axis was described in patients with chronic kidney disease (CKD). On the one hand, gut dysbiosis could promote CKD progression, but on the other hand, studies reported specific gut microbiota alterations linked to CKD. Therefore, we aimed to systematically review the literature on gut microbiota composition in CKD patients, including those with advanced CKD stages and end-stage kidney disease (ESKD), possibilities to shift gut microbiota, and its impact on clinical outcomes. Materials and methods: We performed a literature search in MEDLINE, Embase, Scopus, and Cochrane databases to find eligible studies using pre-specified keywords. Additionally, key inclusion and exclusion criteria were pre-defined to guide the eligibility assessment. Results: We retrieved 69 eligible studies which met all inclusion criteria and were analyzed in the present systematic review. Microbiota diversity was decreased in CKD patients as compared to healthy individuals. Ruminococcus and Roseburia had good power to discriminate between CKD patients and healthy controls (AUC = 0.771 and AUC = 0.803, respectively). Roseburia abundance was consistently decreased in CKD patients, especially in those with ESKD (p &lt; 0.001). A model based on 25 microbiota dissimilarities had an excellent predictive power for diabetic nephropathy (AUC = 0.972). Several microbiota patterns were observed in deceased ESKD patients as compared to the survivor group (increased Lactobacillus, Yersinia, and decreased Bacteroides and Phascolarctobacterium levels). Additionally, gut dysbiosis was associated with peritonitis and enhanced inflammatory activity. In addition, some studies documented a beneficial effect on gut flora composition attributed to synbiotic and probiotic therapies. Large randomized clinical trials are required to investigate the impact of different microbiota modulation strategies on gut microflora composition and subsequent clinical outcomes. Conclusions: Patients with CKD had an altered gut microbiome profile, even at early disease stages. Different abundance at genera and species levels could be used in clinical models to discriminate between healthy individuals and patients with CKD. ESKD patients with an increased mortality risk could be identified through gut microbiota analysis. Modulation therapy studies are warranted.<\/jats:p>","DOI":"10.3390\/jcm12051948","type":"journal-article","created":{"date-parts":[[2023,3,2]],"date-time":"2023-03-02T01:39:21Z","timestamp":1677721161000},"page":"1948","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":70,"title":["Gut Microbiota in Chronic Kidney Disease: From Composition to Modulation towards Better Outcomes\u2014A Systematic Review"],"prefix":"10.3390","volume":"12","author":[{"given":"Luminita","family":"Voroneanu","sequence":"first","affiliation":[{"name":"Nephrology Department, Dialysis and Renal Transplant Center, \u201cDr. C.I. Parhon\u201d University Hospital, 700503 Iasi, Romania"},{"name":"Faculty of Medicine, \u2018Grigore T. Popa\u2019 University of Medicine, 700115 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3424-1588","authenticated-orcid":false,"given":"Alexandru","family":"Burlacu","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, \u2018Grigore T. Popa\u2019 University of Medicine, 700115 Iasi, Romania"},{"name":"Department of Interventional Cardiology, Cardiovascular Diseases Institute \u201cProf. Dr. George I.M. Georgescu\u201d, 700503 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6253-3203","authenticated-orcid":false,"given":"Crischentian","family":"Brinza","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, \u2018Grigore T. Popa\u2019 University of Medicine, 700115 Iasi, Romania"},{"name":"Department of Interventional Cardiology, Cardiovascular Diseases Institute \u201cProf. Dr. George I.M. Georgescu\u201d, 700503 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andreea","family":"Covic","sequence":"additional","affiliation":[{"name":"Nephrology Department, Dialysis and Renal Transplant Center, \u201cDr. C.I. Parhon\u201d University Hospital, 700503 Iasi, Romania"},{"name":"Faculty of Medicine, \u2018Grigore T. Popa\u2019 University of Medicine, 700115 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2919-4940","authenticated-orcid":false,"given":"Gheorghe G.","family":"Balan","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, \u2018Grigore T. Popa\u2019 University of Medicine, 700115 Iasi, Romania"},{"name":"Institute of Gastroenterology and Hepatology, St. 1 Spiridon Emergency County Hospital, 700111 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ionut","family":"Nistor","sequence":"additional","affiliation":[{"name":"Nephrology Department, Dialysis and Renal Transplant Center, \u201cDr. C.I. Parhon\u201d University Hospital, 700503 Iasi, Romania"},{"name":"Faculty of Medicine, \u2018Grigore T. Popa\u2019 University of Medicine, 700115 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cristina","family":"Popa","sequence":"additional","affiliation":[{"name":"Faculty of Medicine, \u2018Grigore T. Popa\u2019 University of Medicine, 700115 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Simona","family":"Hogas","sequence":"additional","affiliation":[{"name":"Nephrology Department, Dialysis and Renal Transplant Center, \u201cDr. C.I. Parhon\u201d University Hospital, 700503 Iasi, Romania"},{"name":"Faculty of Medicine, \u2018Grigore T. Popa\u2019 University of Medicine, 700115 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9985-2486","authenticated-orcid":false,"given":"Adrian","family":"Covic","sequence":"additional","affiliation":[{"name":"Nephrology Department, Dialysis and Renal Transplant Center, \u201cDr. C.I. Parhon\u201d University Hospital, 700503 Iasi, Romania"},{"name":"Faculty of Medicine, \u2018Grigore T. Popa\u2019 University of Medicine, 700115 Iasi, Romania"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,3,1]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"8787","DOI":"10.3748\/wjg.v21.i29.8787","article-title":"Role of the normal gut microbiota","volume":"21","author":"Jandhyala","year":"2015","journal-title":"World J. 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