Evidences of Herbal Medicine-Derived Natural Products Effects in Inflammatory Lung Diseases

Figure 2

Possible mechanism involved in the effects of herbal-derived natural products on pulmonary inflammation in respiratory diseases. It is believed that the natural products derived from plants inhibit the pulmonary inflammation by the inhibition of the transcription of NF-κB to the nucleus, thus preventing the development of all the inflammatory processes triggered by allergen, cigarette smoke, virus, or bacteria. Therefore, these products can reduce the inflammatory cytokines release and oxidative stress. These effects together culminate with the improvement of lung function and with the reduction of pulmonary inflammation.