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Protective effects of Bifidobacterium adolescentis on collagen-induced arthritis in rats depend on timing of administration.

  • 2020
  • Food & Function 11(5)
    • Zhexin Fan
    • Bo Yang
    • R. Ross
    • C. Stanton
    • Jianxin Zhao
    • G. Shi
    • Hao Zhang
    • Wei Chen

Abstract

Emerging studies have addressed the role of probiotics in inflammation modulation via modifying gut microbiota. Perturbed gut microbiota is recognized as a pivotal trigger in the pathogenesis of rheumatoid arthritis (RA), and manipulating gut microbiota at the early phase may be helpful to alleviate the disease based on the fact that dysbiosis occurred prior to clinical arthritis. The current study compared the effects of preventive and therapeutic treatment with Bifidobacterium adolescentis on collagen induced arthritis (CIA) in rats. Early B. adolescentis administration before CIA modelling performed better than late B. adolescentis treatment in reducing the clinical symptoms, rebalancing the pro- and anti-inflammatory responses and maintaining the fecal concentration of short chain fatty acids (SCFAs), as well as restoring the intestinal dysbiosis. Preventive B. adolescentis treatment restored the gut microbiota to a normal level while late B. adolescentis fed rats showed clearly different gut microbial profiles. In addition, there were slight discrepancies between early- and late- treatment of B. adolescentis in the production of specific auto-antibodies and tight junction proteins. All those results highlighted that early treatment of probiotics in arthritis might be a better timing for alleviating arthritis.

Research Insights

SupplementHealth OutcomeEffect TypeEffect Size
Bifidobacterium adolescentisMaintained Fecal Short Chain Fatty Acid LevelsBeneficial
Moderate
Bifidobacterium adolescentisNormalized Gut MicrobiotaBeneficial
Large
Bifidobacterium adolescentisReduced Clinical Symptoms of ArthritisBeneficial
Large
Bifidobacterium adolescentisRestored Intestinal Microbiota BalanceBeneficial
Large
Bifidobacterium adolescentis iVS-1Normalized Gut MicrobiotaBeneficial
Large
Bifidobacterium adolescentis iVS-1Restored Intestinal Microbiota BalanceBeneficial
Large
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