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Related Experiment Videos

Microbiology of "normal" tonsils.

I Brook1, P A Foote

  • 1Department of Pediatrics, National Naval Medical Center, Bethesda, Maryland.

The Annals of Otology, Rhinology, and Laryngology
|December 1, 1990
PubMed
Summary

Normal tonsils harbor polymicrobial flora. Bacterial numbers and encapsulation increase in tonsils affected by recurrent tonsillitis, indicating a role in the inflammatory process.

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Area of Science:

  • Microbiology
  • Otolaryngology
  • Pediatrics

Background:

  • Tonsils are key components of the immune system.
  • The microbial flora within tonsils is not fully understood, especially in relation to inflammation.

Purpose of the Study:

  • To investigate the bacterial flora in normal versus inflamed tonsils.
  • To compare the microbial composition and characteristics in tonsils from children with velopharyngeal insufficiency versus recurrent tonsillitis.

Main Methods:

  • Core tonsillar cultures were performed on surgically removed tonsils.
  • Aerobic and anaerobic bacteria were cultured from four normal tonsils and four tonsils with recurrent tonsillitis.

Main Results:

  • Polymicrobial flora was present in the core of normal, noninflamed tonsils.
  • An increased number and encapsulation of bacteria were observed in tonsils from children with recurrent tonsillitis.

Conclusions:

  • Normal tonsils contain a diverse bacterial community.
  • Bacterial proliferation and encapsulation are associated with the inflammatory process in recurrent tonsillitis.

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