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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Wang, Biao Xing, Wei Zhao, Yan Deng, Xin |
| Description | Country affiliation: China Author Affiliation: Wang B ( Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences of China Medical University, No. 92, Beier Road, Heping District, Shenyang 110001, China.) |
| Abstract | OBJECTIVE: To investigate the effects of chronic aluminum (Al) exposure on memory of rats by recording long-term potentiation (LTP) induction in CA1 region of Schaffer collateral (SC) of hippocampus and observing the changes of key LTP induction-related kinases. METHODS: Forty weaned Wistar rats were divided into 4 groups ad libitum, each group 10 rats. Three groups were fed with 0.2%, 0.4% and 0.6% AlCl(3) in drinking water for three months individually to set up the aluminum exposure models and the rest group was the control. After behavioral test, electrophysiological recordings were made at area CA1 from hippocampal SC branch followed by biochemical examination for several key kinases involved in LTP induction and formation. RESULTS: Chronic exposure of Al significantly decrease the activities of protein kinase C (PKC) and mitogen-activated protein kinase (MAPK) and reduced the expression levels of extracellular signal-regulated kinases (ERK1/2) and Ca(2+)-calmodulin dependent protein kinase II (CaMKII) in hippocampus, attenuating the population spike (PS) amplitude of LTP from the hippocampal CA1 region, causing impaired memory abilities of rats. CONCLUSIONS: Aluminum accumulation in the hippocampus affects several crucial kinases involved in LTP induction and formation, resulting in impairment of memory. |
| File Format | HTM / HTML |
| ISSN | 13826689 |
| Issue Number | 3 |
| Journal | Environmental Toxicology and Pharmacology |
| Volume Number | 29 |
| e-ISSN | 18727077 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2010-05-01 |
| Publisher Place | Netherlands |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Environmental Health Discipline Pharmacology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Health, Toxicology and Mutagenesis Medicine Toxicology Pharmacology |
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