The relationship between murine IgE, IgG, and IgG1 level and birosarcoma induced by 3-Methyl-cholanthrene in NIH mice was studied. The results showed that IgE, IgG or IgGl had no significant effect on tumor incidence;...The relationship between murine IgE, IgG, and IgG1 level and birosarcoma induced by 3-Methyl-cholanthrene in NIH mice was studied. The results showed that IgE, IgG or IgGl had no significant effect on tumor incidence; the high IgE level could extend the survival time of 3-Methylcholanthrene injected mice (P<0.05) and survival time of tumor bearing mice (P<0.01), while IgG or IgGl could not. The data from this study did not show that IgE, IgG or IgGl had any significant effect on the tumor size and the tumor growth rate. The probable mechanism involved was discussed.展开更多
A prospective study on the relationship between garlic and gastric cancer of 4552 subjects was made from Oct., 1980 through 1985. The volunteers, aged 50-59, were healthy males and came from different incidence areas ...A prospective study on the relationship between garlic and gastric cancer of 4552 subjects was made from Oct., 1980 through 1985. The volunteers, aged 50-59, were healthy males and came from different incidence areas of gastric cancer where they lived for long periods. The result of this study showed that the death rates of gastric cancer in < 2500 g and >500 g groups of annual garlic intake were 10.40/ 10000 and 0, respectively. The relative risk of gastric cancer was significantly much higher in the former than in the latter, and showed a dose-response relationship. Protective effect of garlic for the population equal annual garlic intake was roughly the same in different districts. It was further confirmed that garlic played important role in preventing gastric cancer and had no regional differences.展开更多
A method for the analysis of the relationship between the helical structure and optical activity was proposed by the study of the conformations and X-ray diffraction structures of some cyclic esters prepared by esteri...A method for the analysis of the relationship between the helical structure and optical activity was proposed by the study of the conformations and X-ray diffraction structures of some cyclic esters prepared by esterification of L-(-)-2.3-O-methylidene threitol and L-(+)-2,3-O-isopropplidene threitol with alkanedioyl dichlorides and o-,m-,and p-phthaloyl dichlorides.展开更多
文摘The relationship between murine IgE, IgG, and IgG1 level and birosarcoma induced by 3-Methyl-cholanthrene in NIH mice was studied. The results showed that IgE, IgG or IgGl had no significant effect on tumor incidence; the high IgE level could extend the survival time of 3-Methylcholanthrene injected mice (P<0.05) and survival time of tumor bearing mice (P<0.01), while IgG or IgGl could not. The data from this study did not show that IgE, IgG or IgGl had any significant effect on the tumor size and the tumor growth rate. The probable mechanism involved was discussed.
文摘A prospective study on the relationship between garlic and gastric cancer of 4552 subjects was made from Oct., 1980 through 1985. The volunteers, aged 50-59, were healthy males and came from different incidence areas of gastric cancer where they lived for long periods. The result of this study showed that the death rates of gastric cancer in < 2500 g and >500 g groups of annual garlic intake were 10.40/ 10000 and 0, respectively. The relative risk of gastric cancer was significantly much higher in the former than in the latter, and showed a dose-response relationship. Protective effect of garlic for the population equal annual garlic intake was roughly the same in different districts. It was further confirmed that garlic played important role in preventing gastric cancer and had no regional differences.
文摘A method for the analysis of the relationship between the helical structure and optical activity was proposed by the study of the conformations and X-ray diffraction structures of some cyclic esters prepared by esterification of L-(-)-2.3-O-methylidene threitol and L-(+)-2,3-O-isopropplidene threitol with alkanedioyl dichlorides and o-,m-,and p-phthaloyl dichlorides.
