کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6257240 | 1612947 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
NK3 receptor agonism reinstates temporal order memory in the hemiparkinsonian rat
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب رفتاری
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چکیده انگلیسی
Animals treated with unilateral 6-hydroxydopamine (6-ODHA) injections, an animal model of Parkinson's disease, exhibit deficits in memory for temporal order, but show intact novel object recognition. Since senktide, a potent neurokinin-3 receptor (NK3-R) agonist, has been shown to have promnestic effects in the aged rat and to alleviate scopolamine-induced impairment, the present study aimed to assess possible promnestic effects of senktide in the hemiparkinsonian rat model. Animals received unilateral 6-ODHA microinjections into the medial forebrain bundle. Two weeks later, they were randomly assigned to treatment with vehicle, 0.2, or 0.4Â mg/kg senktide. Temporal order memory and place recognition tests were conducted, locomotor activity and turning behavior were assessed in the open field and anxiety-related behavior was measured in the light-dark box. Treatments were administered 30Â min prior to behavioral testing with an interval of seven days between tests. The animals treated with 0.2Â mg/kg senktide exhibited temporal order memory, unlike the vehicle-treated group. No significant treatment effects were found in the open field and light-dark box. Administration of 0.2Â mg/kg senktide may influence the prefrontal cortex and hippocampus, leading to compensations for deficits in memory for temporal order.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Behavioural Brain Research - Volume 285, 15 May 2015, Pages 208-212
Journal: Behavioural Brain Research - Volume 285, 15 May 2015, Pages 208-212
نویسندگان
Owen Y. Chao, An-Li Wang, Susanne Nikolaus, Maria A. de Souza Silva,