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Effect of Probiotic and Synbiotic Supplementation on Inflammatory Markers in Health and Disease Status: A Systematic Review and Meta-Analysis of Clinical Trials Publisher Pubmed



Kazemi A1 ; Soltani S2 ; Ghorabi S3 ; Keshtkar A4 ; Daneshzad E3 ; Nasri F5 ; Mazloomi SM1
Authors
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Authors Affiliations
  1. 1. Nutrition Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
  2. 2. Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
  3. 3. Department of Clinical Nutrition, School of Nutritional Sciences and Dietetic, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Department of Health Science Educational Development, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  5. 5. Department Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran

Source: Clinical Nutrition Published:2020


Abstract

The current systematic review and meta-analysis investigated the effect of probiotic/synbiotic on a wide range of inflammatory and anti-inflammatory markers in healthy and various disease conditions. PubMed, SCOPUS and Web of Science databases were searched. All clinical trials which investigated the effect of oral administration of probiotic or synbiotic on inflammatory markers (C-reactive protein (CRP), interleukin (IL) 1β, IL-4, IL-6, IL-8, IL-10, IL-12, tumor necrosis factor (TNF) α, interferon (IFN) γ and transforming growth factor (TGF) β) for more than one week with concurrent control groups were included. One-hundred sixty seven publications was analysed. Results were as follows: CRP decreased in healthy, metabolic disorders, inflammatory bowel disease (IBD), arthritis and critically ill condition but not in renal failure. IL-1B: no change in healthy subjects and arthritis. TNF-α: decreased in healthy, fatty liver, IBD and hepatic cirrhosis, no change in diabetes, metabolic syndrome (MS) + PCOS (polycystic ovary syndrome) and arthritis. IL-6: no change in healthy, metabolic disorders and arthritis, increased in cirrhosis and renal failure, decreased in PCOS + MS. IL-10: no change in healthy, IBD and metabolic disorders, increased in arthritis. IL-4, IL-8, IL-12, IFN-g and TGF-b: no change in healthy subjects. In conclusion, probiotic/synbiotic decreased some of the inflammatory markers. The intervention was most effective in CRP and TNF-α reduction in healthy or disease state. Moreover, the intervention decreased inflammation most effectively in the following disease conditions, respectively: IBD, arthritis, fatty liver. PROSPERO registration number: CRD42018088688. © 2019 Elsevier Ltd and European Society for Clinical Nutrition and Metabolism
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