کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4350974 | 1297001 | 2006 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Impaired hippocampal long-term potentiation in melatonin MT2 receptor-deficient mice
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
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چکیده انگلیسی
The pineal product melatonin that acts on specific melatonin receptors has been implicated in pathobiological mechanisms of neuropsychiatric disorders including Alzheimer's disease. We used mice lacking melatonin MT2 receptors (MT2 knockouts) to investigate the role of these receptors in synaptic plasticity and learning-dependent behavior. In field CA1 of hippocampal slices from wild-type mice, theta burst stimulation induced robust and stable long-term potentiation that was smaller and decremental in slices from MT2 knockouts. Tested in an elevated plus-maze on two consecutive days, wild-type mice showed shorter transfer latencies to enter a closed arm on the second day; this experience-dependent behavior did not occur in MT2 knockouts. These results suggest that MT2 receptors participate in hippocampal synaptic plasticity and in memory processes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience Letters - Volume 393, Issue 1, 23 January 2006, Pages 23-26
Journal: Neuroscience Letters - Volume 393, Issue 1, 23 January 2006, Pages 23-26
نویسندگان
John Larson, Ruth E. Jessen, Tolga Uz, Ahmet D. Arslan, Murat Kurtuncu, Marta Imbesi, Hari Manev,