کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5829240 1558984 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Minocycline restores spatial but not fear memory in olfactory bulbectomized rats
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب سلولی و مولکولی
پیش نمایش صفحه اول مقاله
Minocycline restores spatial but not fear memory in olfactory bulbectomized rats
چکیده انگلیسی
We investigated the effects of minocycline, a microglia suppressant, on olfactory bulbectomized (OBX) rats, a model of cognitive and behavioral impairments arising from neurodegenerative processes. Previously, we demonstrated that the major OBX-induced behavioral and cognitive impairments develop between day 3 and 7 following bulbectomy. Here we show that the onset of these cognitive changes parallel in time with signs of microglia activation (increased mRNA levels of IL-1β and CD68) in hippocampus. Next, rats were treated with minocycline (50 mg/kg, i.p.) once daily for 4 weeks. OBX surgery was done at day 3 of drug treatment. Animals were tested in a battery of behavioral assays: open field, passive avoidance (fear learning and memory-acquired prior to OBX) and T-maze (spatial memory, conducted post bulbectomy). Minocycline normalized OBX-induced hyperactivity in the open field. Minocycline failed to prevent fear memory loss, but protected the OBX rats against hippocampal-dependent spatial memory deficit. Our findings suggest that treatment with minocycline may be effective in the early phase of a neurodegenerative disease.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Journal of Pharmacology - Volume 697, Issues 1–3, 15 December 2012, Pages 59-64
نویسندگان
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