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Nitric oxide sera levels as an inflammatory marker in asthma.
Erika de Arruda-Chaves1, Daniel De Conti, Thais Tebaldi
1Pathology Department, University of Uberlândia, MG, Brazil. arbochav@terra.com.pe
Journal of Investigational Allergology & Clinical Immunology
|October 10, 2002
Summary
Higher nitric oxide (NO) levels in blood serum can help diagnose asthma. This finding offers a new diagnostic marker, particularly for children where exhaled NO testing is challenging.
Area of Science:
- Biochemistry
- Immunology
- Pulmonology
Background:
- Nitric oxide (NO) is a key regulator of physiological processes.
- NO's role in asthma pathophysiology, particularly exhaled NO, is well-documented.
Purpose of the Study:
- To investigate serum NO levels in patients with varying asthma severity.
- To assess serum NO as a diagnostic and treatment efficacy parameter for asthma.
Main Methods:
- Serum NO was quantified using the Griess reaction.
- The study included 90 asthma patients and 34 healthy controls.
Main Results:
- Asthmatic patients exhibited significantly higher serum NO levels (56.54 ± 33.37) compared to controls (3.06 ± 4.48).
- A statistically significant difference (p < 0.0001) was observed between the groups.
Conclusions:
- Serum NO levels serve as a valuable inflammatory marker for asthma.
- This method can be an auxiliary diagnostic tool, especially for children, complementing exhaled NO analysis.