20Oct 2022
Urinary total conjugated 3-bromotyrosine, asthma severity, and exacerbation risk

Urinary total conjugated 3-bromotyrosine, asthma severity, and exacerbation risk

Predicting exacerbations and reducing their frequency is critical for treating severe asthma. This study aimed to investigate whether urinary total conjugated bromotyrosine can discriminate asthma severity and predict asthma exacerbations. The majority of 3-bromotyrosine in urine was found to exist in conjugated forms. Total conjugated bromotyrosine was poorly correlated with blood (r2 = 0.038) or sputum eosinophils (r2 = 0.0069). Compared with nonsevere asthma, participants with severe asthma had significantly higher urinary total conjugated bromotyrosine levels. Urinary total conjugated bromotyrosine was independently associated with asthma severity, correlated with the number of asthma exacerbations, and served as a predictor of asthma exacerbation risk over 1-yr of follow-up.

  • #pulmonology

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