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New Zinc Compounds Study Findings Have Been Reported by Investigators at Theodor Bilharz Research Institute (Ecotoxicological Effect of Sublethal...

August 19, 2014



New Zinc Compounds Study Findings Have Been Reported by Investigators at Theodor Bilharz Research Institute (Ecotoxicological Effect of Sublethal Exposure to Zinc Oxide Nanoparticles on Freshwater Snail Biomphalaria alexandrina)

By a News Reporter-Staff News Editor at Life Science Weekly -- Current study results on Zinc Compounds have been published. According to news originating from Giza, Egypt, by NewsRx correspondents, research stated, "Freshwater snails are used as sensitive biomarkers of aquatic ecosystem pollution. The potential impacts of zinc oxide nanoparticles (ZnONPs) on aquatic ecosystems have attracted special attention due to their unique properties."

Our news journalists obtained a quote from the research from Theodor Bilharz Research Institute, "The present investigation was designed to evaluate the possible mechanisms of ecotoxicological effects of ZnONPs on freshwater snail Biomphalaria alexandrina. ZnONPs showed molluscicidal activity against B. alexandrina snails, and the LC50 was 145 mu g/ml. Two tested concentrations of ZnONPs were selected: The first concentration was equivalent to LC10 (7 mu g/ml), and the second was equivalent to LC25 (35 mu g/ml). Exposure to ZnONPs (7 and 35 mu g/ml) for three consecutive weeks significantly induced malondialdehyde and nitric oxide with concomitant decreases in glutathione and glutathione-S-transferase levels in hemolymph and soft tissues of treated snails. Moreover, ZnONPs elicited a significant decrease in total protein and albumin contents coinciding with enhancement of total lipids and cholesterol levels as well as activities of aspartate aminotransferase, alanine aminotransferase, and alkaline phosphatase in hemolymph and soft tissues of treated snails."

According to the news editors, the research concluded: "This study highlights the potential ecological implications of ZnONP release in aquatic environments and may serve to encourage regulatory agencies in Egypt to more carefully monitor and regulate the industrial use and disposal of ZnONPs."

For more information on this research see: Ecotoxicological Effect of Sublethal Exposure to Zinc Oxide Nanoparticles on Freshwater Snail Biomphalaria alexandrina. Archives of Environmental Contamination and Toxicology, 2014;67(2):192-202. Archives of Environmental Contamination and Toxicology can be contacted at: Springer, 233 Spring St, New York, NY 10013, USA. (Springer - www.springer.com; Archives of Environmental Contamination and Toxicology - www.springerlink.com/content/0090-4341/)

The news correspondents report that additional information may be obtained from S.R. Fahmy, Theodor Bilharz Res Inst, Medical Malacol Department, Giza, Egypt. Additional authors for this research include F. Abdel-Ghaffar, F.A. Bakry and D.A. Sayed (see also Zinc Compounds).

Keywords for this news article include: Giza, Egypt, Africa, Chemicals, Chemistry, Zinc Oxide, Nanoparticle, Nanotechnology, Zinc Compounds, Aminotransferase, Emerging Technologies, Enzymes and Coenzymes

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Life Science Weekly


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