Composition for preventing lung cancer and its preparation method and application
Patent Information
- Authority / Receiving Office
- CN ยท China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ๅผ ่
- Publication Date
- 2011-11-30
- Estimated Expiration
- Not applicable ยท inactive patent
Abstract
Description
technical field
[0001] The invention relates to a composition for preventing lung cancer, a preparation method and application thereof. Background technique
[0002] In the 15th century, in the Schneeberg mine in Germany, miners were prone to suffer from a high-mortality lung disease called "Schneeberg" lung disease. In the 1880s, this disease was confirmed as lung cancer. In 1924, it was proposed that the Lung cancer may be related to radon exposure. Since then, a large number of epidemiological investigations have shown that in a high-concentration radon environment, the radiation of radon daughters can increase the risk of lung cancer. Sacomano et al. calculated that when the cumulative exposure of radon and its progeny exceeded 120 working level months (WLM), the incidence rate began to increase, and when it exceeded 1 800 WLM, it increased significantly by 20-30 times. The mice were exposed to the gas and dust of these mines , can induce lung tumors. The Internationa...