Effective-Component Compatibility of Bufei Yishen Formula III Protects Lung Air-Blood Barrier by Regulating the Oxidative Stress: via the Nuclear Factor-E2-Related Factor 2 Pathway.
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引用次数: 0
Abstract
Purpose: Bufei Yishen formula (BYF) is an effective treatment strategy for chronic obstructive pulmonary disease (COPD). Effective-component compatibility of BYF III (ECC-BYF III), composed of 5 active ingredients (ginsenoside Rh1, paeonol, astragaloside, icariin and nobiletin) from BYF, has similar effects to BYF in intervening COPD. The abnormal structure and hypofunction of lung air-blood barrier induces inefficiency gas exchange and promotes development of COPD. However, the role of ECC-BYF III in the air-blood barrier remains unknown. This study dedicated to exploring the effect and mechanism of ECC-BYF III improve structure and function of lung air-blood barrier in COPD.
Methods: A COPD rat model was established to study the treatment of ECC-BYF III against COPD. The protective effect of ECC-BYF III on COPD was evaluated through pulmonary function and lung tissue pathology. The structure damage of the lung air-blood barrier was assessed using electron microscopy and immunofluorescence. Finally, we proved the regulating effect of ECC-BYF III in oxidative via the Nrf2 pathway.
Results: The ECC-BYF III could significantly alleviate reduced pulmonary function, decrease damage of lung tissue and regulate oxidative stress in COPD rats. And ECC-BYF III reduced thickness of respiratory membrane, ameliorated damage of pulmonary capillary endothelial cells (PCECs) and alveolar epithelial cells (AECs) in COPD rats. Also, ECC-BYF III protected the function and normal cell morphology of type I alveolar epithelial cell (AT I) and type II alveolar epithelial cell (AT II) in COPD rats. Lastly, ECC-BYF III was indicated to adjust the Nrf2 pathway to improve oxidative stress and protect lung air-blood barrier in COPD rats.
Conclusion: ECC-BYF III protects lung air-blood barrier in COPD by regulating oxidative stress via Nrf2 pathway.
期刊介绍：
An international, peer-reviewed journal of therapeutics and pharmacology focusing on concise rapid reporting of clinical studies and reviews in COPD. Special focus will be given to the pathophysiological processes underlying the disease, intervention programs, patient focused education, and self management protocols. This journal is directed at specialists and healthcare professionals
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