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学科主题: Environmental Sciences & Ecology; Toxicology; Water Resources
题名: Anemia Induced by Repeated Exposure to Cyanobacterial Extracts with Explorations of Underlying Mechanisms
作者: Zhang, Xuezhen ; Xie, Ping ; Li, Dapeng ; Shi, Zechao ; Wang, Jun ; Yuan, Gailing ; Zhao, Yanyan ; Tang, Rong
通讯作者: Xie, P (reprint author), Huazhong Agr Univ, Coll Fisheries, Key Lab Agr Anim Genet Breeding & Reprod, Minist Educ, Wuhan 430070, Peoples R China ; xieping@ihb.ac.cn
关键词: microcystins ; anemia ; bone marrow ; erythropoietin ; hematotoxicology
刊名: ENVIRONMENTAL TOXICOLOGY
发表日期: 2011
卷: 26, 期:5, 页:472-479
收录类别: SCI
部门归属: [Zhang, XZ; Xie, P; Li, DP; Wang, J; Yuan, GL; Zhao, YY; Tang, R] Huazhong Agr Univ, Coll Fisheries, Key Lab Agr Anim Genet Breeding & Reprod, Minist Educ, Wuhan 430070, Peoples R China; [Xie, P] Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Shi, ZC] Chinese Acad Fishery Sci, Yangtze River Fisheries Res Inst, Jinzhou 434000, Peoples R China
资助者: National Natural Science Foundation of China[30800160]; State Key Laboratory of Freshwater Ecology and Biotechnology[2008FB015]; Huazhong Agricultural University
摘要: Hematological abnormalities or derangements have been demonstrated in patients suffering form microcystins (MCs) in hemodialysis unit in Caruaru, Brazil, 1996. While experimental study on hematological effect of microcystins has been rare and the underlying mechanisms are still puzzling. In the present study, microcystins were repeatedly intraperitoneally injected with a dose of 6 mu g/kg/day in rabbits (Oryctolagus cuniculus) for 14 days, and the prolonged effects of extracted microcystins on hematotoxicology were investigated. Significant decreases were observed in the hematological indices red blood cell counts, hematocrit, hemoglobin, and platelet count, while an obvious anemia occurred in rabbits after 14-day exposure. Moreover, red blood cell volume distribution width, mean corpuscular volume, and mean corpuscular hemoglobin did not vary significantly, indicating that rabbits suffered from normocytic anemia. In bone marrow, on the 14th day after toxin exposure, the frequency of micronucleus increased significantly, and the viability of bone marrow cells decreased markedly compared with the control. Serum erythropoietin levels declined on the 7th and 14th day, which suggested that the ability to regulate differentiation and maturation of erythrocytes was impaired. These results indicate that repeated exposure of microcystins can result in normocyte anemia, and the bone marrow injures and the sharp decreases of erythropoietin levels were responsible for the anemia. (C) 2011 Wiley Periodicals, Inc. Environ Toxicol 26: 472-479, 2011.
语种: 英语
WOS记录号: WOS:000295035600005
ISSN号: 1520-4081
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/16265
Appears in Collections:淡水生态学研究中心_期刊论文

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Zhang, Xuezhen; Xie, Ping; Li, Dapeng; Shi, Zechao; Wang, Jun; Yuan, Gailing; Zhao, Yanyan; Tang, Rong.Anemia Induced by Repeated Exposure to Cyanobacterial Extracts with Explorations of Underlying Mechanisms,ENVIRONMENTAL TOXICOLOGY,2011,26(5):472-479
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