The objective of the study is the cytocidal and inhibitory effect of energy-controllable pulse on ovarian cancer cell line SKOV3. Ovarian cancer cell suspension were treated by electric pulse with different parameters...The objective of the study is the cytocidal and inhibitory effect of energy-controllable pulse on ovarian cancer cell line SKOV3. Ovarian cancer cell suspension were treated by electric pulse with different parameters. The inhibitory rate (IR) was assayed by modified colorimetric MTT methods, the growth curves of two test groups and one control group were also measured, and the ultrastructural changes were observed under electron microscopy (EM) and scan electron microscopy (SEM). It was found that the treated SKOV3 cell proliferated more slowly. IR was increased with the enhancement of pulse parameters. The ultrastructural study showed that morphological changes occurred obviously. Swollen mitochondria, fractured ridges, cyto-plasmic vacuoles and membrane holes appeared in most of the processed cells, and a part of bilayer membrane was ruptured. It is indicated that irreversible electric breakdown occurred in some of the treated cells, and the electric pulse could kill cancer cell and inhibit its recovery and growth.展开更多
Seleno- malt is an organic Selenium product recently developed in China . Seleno- malt itself is not genotixic. It antagonized the mutagenic effect of aflatoxin B1. The antagonistic activity was, 10- 15 times higher t...Seleno- malt is an organic Selenium product recently developed in China . Seleno- malt itself is not genotixic. It antagonized the mutagenic effect of aflatoxin B1. The antagonistic activity was, 10- 15 times higher than Seleno-yeast may be used as a food additive in areas with low selenium level for the prevention of Ke- Shan disease and Cancer.展开更多
To make a comprehensive assessment on mono-sodium glutamate(MSG)wastewater pollution,a pollution exposure experiment was carried out on the seed germination and root elongation of wheat,Chinese cabbage and tomato by u...To make a comprehensive assessment on mono-sodium glutamate(MSG)wastewater pollution,a pollution exposure experiment was carried out on the seed germination and root elongation of wheat,Chinese cabbage and tomato by using the wastewater discharged from different processing phases of MSG production.The results showed that there were significantly positive linear relationships between the inhibitory rates of wheat seed germination and root elonga-tion and the CODcr of the mother liquor scraps.The toxicity of MSG wastewater to the test crops was in the order of tomato>Chinese cabbage>wheat,indicating that tomato was the most sensitive to the wastewater,and could be considered as an ideal toxic bioindicator.The half-effect concentrations(IC50)based on the seed germination and root elongation of the test crops exposed to the wastewater discharged from various processing phases of MSG produc-tion was 22.0-32432 and 17.3-3320 mg/L,respectively.展开更多
文摘The objective of the study is the cytocidal and inhibitory effect of energy-controllable pulse on ovarian cancer cell line SKOV3. Ovarian cancer cell suspension were treated by electric pulse with different parameters. The inhibitory rate (IR) was assayed by modified colorimetric MTT methods, the growth curves of two test groups and one control group were also measured, and the ultrastructural changes were observed under electron microscopy (EM) and scan electron microscopy (SEM). It was found that the treated SKOV3 cell proliferated more slowly. IR was increased with the enhancement of pulse parameters. The ultrastructural study showed that morphological changes occurred obviously. Swollen mitochondria, fractured ridges, cyto-plasmic vacuoles and membrane holes appeared in most of the processed cells, and a part of bilayer membrane was ruptured. It is indicated that irreversible electric breakdown occurred in some of the treated cells, and the electric pulse could kill cancer cell and inhibit its recovery and growth.
文摘Seleno- malt is an organic Selenium product recently developed in China . Seleno- malt itself is not genotixic. It antagonized the mutagenic effect of aflatoxin B1. The antagonistic activity was, 10- 15 times higher than Seleno-yeast may be used as a food additive in areas with low selenium level for the prevention of Ke- Shan disease and Cancer.
基金This work was supported by the National Natural Science Foundation and the Ministry of Science and Technology of China(Grant No.20225722,20337010,and 2004CB418503).
文摘To make a comprehensive assessment on mono-sodium glutamate(MSG)wastewater pollution,a pollution exposure experiment was carried out on the seed germination and root elongation of wheat,Chinese cabbage and tomato by using the wastewater discharged from different processing phases of MSG production.The results showed that there were significantly positive linear relationships between the inhibitory rates of wheat seed germination and root elonga-tion and the CODcr of the mother liquor scraps.The toxicity of MSG wastewater to the test crops was in the order of tomato>Chinese cabbage>wheat,indicating that tomato was the most sensitive to the wastewater,and could be considered as an ideal toxic bioindicator.The half-effect concentrations(IC50)based on the seed germination and root elongation of the test crops exposed to the wastewater discharged from various processing phases of MSG produc-tion was 22.0-32432 and 17.3-3320 mg/L,respectively.
