Antioxidative Effect of Selenium in Cadmium-Exposed Tardigrade ( H. exemplaris )

摘要: On a daily basis, aquatic ecosystem is exposed to heavy metals, drugs, and chemicals; the continuous exposure results in toxic effect, depending on dose duration of exposure. Studies have confirmed tardigrade be highly tolerant very high temperature, pressure, gravity, etc. This study aimed at confirming various damages caused by cadmium solution antioxidative effect selenium amelioration effects. To model environmental route exposure, toxicants were added (H. exemplaris) culture done deionized water remove non-bioavailability culturing tardigrades agar medium. As was observed pure tardigrades, with no cadmium, there alteration metabolism tardigrades. However, when solutions (at concentrations 0.5 ppb, 1.0 ppb), increased sensitivity oxidative stress as well significantly reduced observed. More specifically, after 6 h dropped relative control organism. The produced reactive oxygen species fluorescence microscopy. Finally, treating did not ameliorate effects tardigrades; instead, reduced, this due only diluting toxicants. 0.5 ppm selenium, using sodium selenite counteracted cadmium-induced over 6-h period from point through period. enzymes (catalase (CAT), superoxide dismutase (SOD), acetylcholine (Ach)) quantified assay methods. In conclusion, an perspective, relevant antioxidant appropriate dosage.