Cancer is a leading cause of death worldwide. Cancer treatments by chemotherapeutic agents, surgery, and radiation have not been highly effective in reducing the incidence of cancers and increasing the survival rate o...Cancer is a leading cause of death worldwide. Cancer treatments by chemotherapeutic agents, surgery, and radiation have not been highly effective in reducing the incidence of cancers and increasing the survival rate of cancer patients. In recent years, plant-derived compounds have attracted considerable attention as alternative cancer remedies for enhancing cancer prevention and treatment because of their low toxicities, low costs, and low side effects. Ellagic acid(EA) is a natural phenolic constituent. Recent in vitro and in vivo experiments have revealed that EA elicits anticarcinogenic effects by inhibiting tumor cell proliferation, inducing apoptosis, breaking DNA binding to carcinogens, blocking virus infection, and disturbing inflammation, angiogenesis, and drug-resistance processes required for tumor growth and metastasis. This review enumerates the anticarcinogenic actions and mechanisms of EA. It also discusses future directions on the applications of EA.展开更多
Objective To probe into the protective mechanism of electro-acupuncture （EA） on anti-oxygen stress in dementia-model rats. Methods A total of 30 male SD rats of cleaning grade were randomized into three groups, name...Objective To probe into the protective mechanism of electro-acupuncture （EA） on anti-oxygen stress in dementia-model rats. Methods A total of 30 male SD rats of cleaning grade were randomized into three groups, named sham-operation （n = 10）, model （n = 10）, model＋ EA （n = 10）. The dementia-model rat was made with hippocampal GA1 lesions by quinolinic acid （QA）. On the second day of modeling, in model＋ EA group, EA （3 Hz, 2-4 mA, continuous waves） was applied to ＂Dàzhuī＂ （大椎 GV 14） and ＂Shènshū＂ （肾俞 BL 23） for 10 min. The capability of learning and memory was evaluated by step-down test to observe the changes of nitric oxide （NO）, nitric oxide synthase （NOS） activity, superoxide dismutase （SOD） activity and malondialdehyde （MDA） of the hippocampal tissues in rats separately by biochemical methods. Results EA improved learning and memory of dementia rats with hippocampal CA1 lesions induced by QA at different degrees. It significantly increased SOD activity, reduced MDA content and improved NO level and NOS activity. Conclusion EA improves significantly the learning and memory of the dementia rats due to hippocampal CA1 lesions induced by QA, which is probably relevant with the anti-oxygen stress of EA.展开更多
基金supported in part by grants from The National Science and Technology Foundation for Rural Development in China during the "12th Five-Year-Plan" (Grant No. 2011BAD33B02)The National Natural Science Foundation of China (Grant No. 81300323)
文摘Cancer is a leading cause of death worldwide. Cancer treatments by chemotherapeutic agents, surgery, and radiation have not been highly effective in reducing the incidence of cancers and increasing the survival rate of cancer patients. In recent years, plant-derived compounds have attracted considerable attention as alternative cancer remedies for enhancing cancer prevention and treatment because of their low toxicities, low costs, and low side effects. Ellagic acid(EA) is a natural phenolic constituent. Recent in vitro and in vivo experiments have revealed that EA elicits anticarcinogenic effects by inhibiting tumor cell proliferation, inducing apoptosis, breaking DNA binding to carcinogens, blocking virus infection, and disturbing inflammation, angiogenesis, and drug-resistance processes required for tumor growth and metastasis. This review enumerates the anticarcinogenic actions and mechanisms of EA. It also discusses future directions on the applications of EA.
基金a grant from the National Natural Science Foundation of China ( No.30772836)Education Bureau,Jiangsu Province (06KJD360146)
文摘Objective To probe into the protective mechanism of electro-acupuncture （EA） on anti-oxygen stress in dementia-model rats. Methods A total of 30 male SD rats of cleaning grade were randomized into three groups, named sham-operation （n = 10）, model （n = 10）, model＋ EA （n = 10）. The dementia-model rat was made with hippocampal GA1 lesions by quinolinic acid （QA）. On the second day of modeling, in model＋ EA group, EA （3 Hz, 2-4 mA, continuous waves） was applied to ＂Dàzhuī＂ （大椎 GV 14） and ＂Shènshū＂ （肾俞 BL 23） for 10 min. The capability of learning and memory was evaluated by step-down test to observe the changes of nitric oxide （NO）, nitric oxide synthase （NOS） activity, superoxide dismutase （SOD） activity and malondialdehyde （MDA） of the hippocampal tissues in rats separately by biochemical methods. Results EA improved learning and memory of dementia rats with hippocampal CA1 lesions induced by QA at different degrees. It significantly increased SOD activity, reduced MDA content and improved NO level and NOS activity. Conclusion EA improves significantly the learning and memory of the dementia rats due to hippocampal CA1 lesions induced by QA, which is probably relevant with the anti-oxygen stress of EA.
基金supported by the National Natural Science Foundation of China(No.81000058)the Priority Academic Program Development of Jiangsu Higher EducationInstitutions(PAPD)~~
