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神内清

木虫 (著名写手)

[求助] 英译汉

Gene expression analyses revealed specific downregulation of a subset of well-known activity-induced CREB-dependent genes, including c-fos, Bdnf and Nr4a2, in the hippocampus of memory-impaired APP(Sw,Ind) transgenic mice. Activity-dependent CREB transcription induced by calcium/cAMP signals is disrupted through a mechanism involving deregulation of calcium/calcineurin-mediated dephosphorylation and activation of CRTC1. Expression of CRTC1 and pharmacological activation of L-type voltage-gated calcium channels reverse the deficits in CRTC1-mediated transcription in APP(Sw,Ind) neurons. CONCLUSION: Our results suggest that CRTC1 dysfunction caused by Abeta accumulation underlies changes in gene expression required for hippocampal-dependent memory in AD transgenic mice.
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zjpa

木虫 (正式写手)

【答案】应助回帖

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神内清: 金币+20, 有帮助, 不错,翻译的还可以,确实还可以,有点小问题 2013-01-19 16:09:18
sallyfly8807: 金币+3, 谢谢你的热心应助。 2013-01-19 16:25:51
基因表达分析显示,记忆受损APP(Sw,Ind)转基因小鼠的海马区中活性诱导CREB依赖性基因子集包括c-fos、BDNF和Nr4a2特异性下调。
由钙离子/cAMP信号诱导的活性依赖性CREB 转录通过钙离子/钙调磷酸酶介导去磷酸化失调和CRTC1活化有关机制阻断。CRTC1表达和L-型电压门控钙离子通道的药理学活化逆转APP(Sw,Ind)神经元中的CRTC1介导去磷酸化(作用)转录。
结论:我们的研究结果表明,β淀粉状蛋白质蓄积引起的CRTC1功能障碍表明AD转基因小鼠的海马依赖性记忆中所需基因表达的变化的重要性。
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tryandjusttry
2楼2013-01-19 13:14:18
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3楼2013-01-19 16:39:33
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dsm2012

金虫 (小有名气)

还不错

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4楼2013-01-20 00:55:24
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