کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4347234 1296828 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Interleukin-1 receptor null mutant mice show decreased anxiety-like behavior and enhanced fear memory
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب (عمومی)
پیش نمایش صفحه اول مقاله
Interleukin-1 receptor null mutant mice show decreased anxiety-like behavior and enhanced fear memory
چکیده انگلیسی
IL-1β is a proinflammatory cytokine that contributes to psychological stress responses and has been implicated in various psychiatric disorders most notably depression. Preclinical studies also demonstrate that IL-1β modulates anxiety- and fear-related behaviors, although these findings are difficult to assess because IL-1β infusions influence locomotor activity and nociception. Here we demonstrate that IL-1RI null mice exhibit a behavioral phenotype consistent with a decrease in anxiety-related behaviors. This includes significant effects in the elevated plus maze, light-dark, and novelty-induced hypophagia tests compared to wild-type mice, with no differences in locomotor activity. With regard to fear conditioning, IL-1RI null mice showed more freezing in auditory and contextual fear conditioning tests, and there was no effect on pain sensitivity. Taken together, the results indicate that the IL-1β/IL-1RI signaling pathway induces anxiety-related behaviors and impairs fear memory.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience Letters - Volume 456, Issue 1, 29 May 2009, Pages 39-43
نویسندگان
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