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Related Experiment Videos

Intercellular adhesion molecule-1 expression in nasal polyps treated with corticosteroid.

Fehmi Doner1, Ibrahim Sari, Murat Yariktas

  • 1Department of Otorhinolaryngology, Suleyman Demirel University School of Medicin,e, Isparta, Turkey. fehmidoner@hotmail.com

American Journal of Otolaryngology
|November 18, 2004
PubMed
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Topical corticosteroid treatment for nasal polyps did not reduce intracellular adhesion molecule-1 (ICAM-1) levels to match normal turbinate tissue. Nasal polyp formation may persist despite steroid therapy.

Area of Science:

  • Rhinology
  • Immunology
  • Otolaryngology

Background:

  • Nasal polyps are associated with chronic inflammation.
  • Intracellular adhesion molecule-1 (ICAM-1) plays a role in inflammatory cell recruitment.

Purpose of the Study:

  • To compare ICAM-1 expression in nasal polyps treated with topical corticosteroids versus control turbinates.
  • To evaluate the efficacy of topical corticosteroids in reducing ICAM-1 expression in nasal polyps.

Main Methods:

  • Patients with nasal polyps received budesonide nasal spray for 2 months pre-surgery.
  • Control group consisted of nonatopic patients with concha bullosa.
  • Tissue specimens were obtained during endoscopic surgery.

Main Results:

Related Experiment Videos

  • Nasal polyps exhibited significantly higher mean ICAM-1 intensity scores compared to control turbinates.
  • Corticosteroid treatment did not reduce ICAM-1 levels in polyps to those of turbinate tissue.

Conclusions:

  • Topical corticosteroid therapy does not normalize ICAM-1 expression in nasal polyps.
  • The underlying inflammatory processes initiating nasal polyp formation may continue despite treatment.