Canadian Respiratory Journal · Published 2026-01-01 · DOI 10.1155/carj/4397833
Radiation pneumonitis can result in respiratory dysfunction and progress to radiation fibrosis, and in severe cases, respiratory failure may occur. Hence, we investigated the effects of Oroxylin A from Scutellaria baicalensis in radiation pneumonia (RP) and the underlying mechanism. Oroxylin A improved pulmonary fibrosis, reduced oxidative stress, and promoted cell growth in model of RP. Oroxylin A suppressed ferroptosis and induced Nrf2 protein expressions in liver cells of model of RP. Moreover, Nrf2 inhibitor reduced the effects of Oroxylin A on pulmonary fibrosis in model of RP by oxidative stress. Collectively, these data suggest that Oroxylin A from Scutellaria baicalensis improved pulmonary fibrosis of RP through ferroptosis by Nrf2 axle.
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