Asymmetric dimethylarginine levels in allergic rhinitis and nasal polyposis

Results: The mean ADMA serum concentration was 0.52 ± 0.08 µmol/L in the AR group, 0.62 ± 0.10 µmol/L in the NP group, and 0.67 ± 0.09 µmol/L in the control group. The ADMA serum concentration in the AR group was significantly lower than in the control group (P < 0.001). Considered together, the NP and AR groups had ADMA levels that were significantly lower than in the control group (P < 0.001). Conclusion: In the present study, lower ADMA levels were found in the AR and NP groups.