《英文msh词典》Anti-Carcinogenic Agents
[入口词] Anti-Carcinogenic Agents
[主题词] Anticarcinogenic Agents
[英文释义] Agents that reduce the frequency or rate of spontaneous or induced tumors independently of the mechanism involved. They differ f+更多解释...rom antineoplastic agents in that they prevent neoplasms from forming. The anticarcinogenic substances can be divided into three categories. The first consists of compounds that prevent the formation of carcinogens from precursor substances. The second group consists of blocking agents which inhibit carcinogenesis by preventing carcinogenic agents from reaching or reacting with critical target sites in the tissues. The third group is the suppressor agents which act by suppression of expression of neoplasia in cells previously exposed to carcinogens that would otherwise cause neoplasms.
