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Reference values for exhaled nitric oxide (reveno) study.

Mario Olivieri1, Giorgio Talamini, Massimo Corradi

  • 1Department of Medicine and Public Health, University of Verona, Italy. mario.olivieri@univr.it

Respiratory Research
|July 4, 2006
PubMed
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This study establishes normal fractional exhaled nitric oxide (FENO) levels in healthy adults. Gender-specific reference values for FENO are necessary due to significant differences observed between men and women.

Area of Science:

  • Respiratory Medicine
  • Pulmonary Physiology
  • Biomarker Research

Background:

  • Fractional exhaled nitric oxide (FENO) is a key biomarker for airway inflammation.
  • Current literature lacks established normal FENO values for a large cohort of healthy adults.

Purpose of the Study:

  • To define reference values for FENO in healthy adults.
  • To align with international guidelines for biomarker assessment.

Main Methods:

  • FENO was measured in 204 healthy, non-smoking adults.
  • Participants had normal spirometry results.
  • The on-line single-breath technique with chemiluminescent analysis was employed.

Main Results:

  • A significant difference in FENO levels was observed between men and women.

Related Experiment Videos

  • FENO reference ranges were established: 2.6–28.8 ppb for men and 1.6–21.5 ppb for women at 50 ml/s expiratory flow.

    • Conclusions:

    • Gender-specific FENO reference values are proposed for healthy adults.
    • These values can aid clinical diagnosis and research applications.