| 6 | Effects of Cd^(+2),Cu^(+2),Ba^(+2) and Co^(+2) ions on Entamoeba histolytica cysts显示文摘AIM:The effects of cobalt, copper, cadmium and barium ions on the cysts of Entarnoeba histolytica (E.histolytica),an amebic dysentery agent,cultured in Robinson medium were investigated.METHODS: E.histolytica cysts and trophozoites isolated from a patient with amebiasis were cultivated in the medium,incubated at 37℃ for a period of 4 days and 40×10^4/ml amebic cysts were then transferred to a fresh medium. At the second stage, 0.05, 0.1 and 0.2mM of selected metal ions were added to the medium,and the effects of these ions on parasitic reproduction compared with the control group were observed.RESULTS:It was determined that the number of living parasites in all the groups containing metal ions decreased significantly starting from 30 minutes (P<0.01). CuCl2 showed the highest lethal effect on E. histolytica cysts, whereas the lowest lethal effect was observed with CoCl2. It was also seen that the number of living cells was decreased as the ion concentration and exposure time were increased, and that there were no living parasites in the medium at the end of 24h (P<0.01).CONCLUSION:It may be stated that the effect of everincreasing contamination of the environment with metal waste materials on parasites should be investigated further. | Umit Aksoy Sebnem Ustun Hande Dagci Süleyman Yazar | 2004 | World Journal of Gastroenterology2004，10，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员