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Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing
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Uveitis and the gut microbiota.

Shilpa Kodati1, H Nida Sen1

  • 1National Eye Institute, National Institutes of Health, USA.

Best Practice & Research. Clinical Rheumatology
|April 13, 2020
PubMed
Summary
This summary is machine-generated.

The gut microbiota plays a role in uveitis development. Altering gut bacteria through antibiotics or germ-free conditions reduced disease severity in mouse models, suggesting therapeutic potential.

Keywords:
Antigenic mimicryDysbiosisMicrobiomeUveitis

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Area of Science:

  • Ophthalmology
  • Immunology
  • Microbiology

Background:

  • Uveitis, an intraocular inflammatory condition, is a major cause of vision loss.
  • The gut microbiota's role in autoimmune diseases, including uveitis, is an emerging area of research.
  • Previous studies suggest a link between gut bacteria and uveitis pathogenesis.

Purpose of the Study:

  • To investigate the influence of gut microbiota on the development and severity of uveitis.
  • To explore potential mechanisms by which gut microbes may trigger or modulate uveitis.
  • To identify therapeutic strategies targeting the gut microbiota for uveitis management.

Main Methods:

  • Utilizing mouse models of experimental autoimmune uveitis and spontaneous uveitis (RI61H model).
  • Administering oral broad-spectrum antibiotics to assess disease severity.
  • Comparing disease outcomes in germ-free versus conventionally raised mice.
  • Analyzing differences in gut microbiota composition between uveitis patients and healthy controls.

Main Results:

  • Reduced uveitis disease severity was observed in mice treated with antibiotics.
  • Germ-free conditions also led to decreased disease severity in uveitis models.
  • Distinct gut microbiota compositions were reported in human uveitis patients compared to controls.
  • Antigenic mimicry and immune dysregulation due to dysbiosis are proposed mechanisms.

Conclusions:

  • The gut microbiota is implicated in the pathogenesis of uveitis.
  • Modulating the gut microbiota may offer a novel therapeutic approach for uveitis.
  • Further research into microbiota-targeted therapies like probiotics and fecal microbiota transplants is warranted.