Glutamate enhances caspase-3 immunoreactivity in cultured spinal cord neurons of newborn rats |
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Authors: | Manabe Y Wang J M Shiote M Murakami T Nagano I Shoji M Abe K |
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Institution: | Department of Neurology, Graduate School of Medicine and Dentistry, Okayama University, 2-5-1 Shikata-cho, Okayama 700-8558, Japan. manabe@cc.okayama-u.ac.jp |
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Abstract: | The role of glutamate in the mechanism of spinal neuron death is not fully understood. With addition of glutamate to primary culture of 11-day-old rat spinal cord, the number of caspase-3 positive small neurons of the dorsal horn greatly increased at 6-24 h in contrast to the case with vehicle. The addition of glutamate made caspase-3 immunoreactivity stronger in the cytoplasm of large motor neurons in the ventral horn. The present results show that excessive amount of glutamate enhances apoptotic pathway through caspase-3 in cultured spinal neurons of newborn rat. |
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