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Trace elements in nasal polyps.

Erdogan Okur1, Asiye Gul, Metin Kilinc

  • 1Department of Otorhinolaryngology, School of Medicine, Afyon Kocatepe University, ANS Arastirma ve Uygulama Hastanesi KBB Klinigi, İzmir yolu 7.km, 03200 Afyonkarahisar, Turkey. erdoganokur@yahoo.com

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Summary

Nasal polyps show significantly lower levels of zinc, selenium, and superoxide dismutase (SOD). These trace elements and antioxidants may play a role in the development of nasal polyps.

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Area of Science:

  • Otolaryngology
  • Biochemistry
  • Trace Element Research

Background:

  • Nasal polyps are inflammatory growths in the nasal cavity.
  • The role of trace elements and antioxidants in nasal polyp development is not fully understood.

Purpose of the Study:

  • To evaluate selenium and zinc levels in nasal polyp tissues.
  • To investigate the role of antioxidants, including superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px), in nasal polyps.

Main Methods:

  • Compared trace element and antioxidant levels in nasal polyp tissues (37 patients) versus conchal mucosa (27 controls).
  • Measured zinc, selenium, SOD, and GSH-Px using graphite and flame spectrophotometry.
  • Utilized Shimatsu UV.1601 spectrophotometer and Perkin Elmer atomic spectrometer.

Main Results:

  • Significantly lower mean tissue levels of zinc (2.55 μg/g vs 4.37 μg/g) and selenium (30.03 pg/g vs 44.95 pg/g) in patients compared to controls.
  • Significantly lower mean tissue SOD levels (4.27 U/mg protein vs 7.09 U/mg protein) in patients.
  • No significant difference in glutathione peroxidase (GSH-Px) levels between groups (P = 0.465).

Conclusions:

  • Nasal polyps exhibit significantly reduced levels of zinc, selenium, and SOD.
  • These deficiencies suggest a potential role for these trace elements and SOD in the pathogenesis of nasal polyps.