این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Iranian Journal of Basic Medical Sciences، جلد ۲۷، شماره ۴، صفحات ۴۶۱-۴۶۵
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Orexin and cannabinoid systems modulate long-term potentiation of the hippocampus CA1 area in anesthetized rats
چکیده انگلیسی مقاله Objective(s): Long-term potentiation (LTP) is a kind of synaptic plasticity and has a key role in learning and memory. Endocannabinoids and orexins are the endogenous systems that can modulate synaptic plasticity. Given that new studies have shown an interaction between cannabinoid and orexin systems in the brain, we decided to examine this interaction between the two systems on LTP induction in rat’s hippocampus.Materials and Methods: Twenty-eight male Wistar rats were used for evaluating the effects of co-administrating of cannabinoid-1 receptor (CB1R) antagonist (AM251) and orexin-2 receptor (OX2R) antagonist (TCS OX2 29) on the induction of LTP in the Schaffer collateral-CA1 synapses of rat hippocampus. The drugs were microinjected into the CA1 area of rat hippocampus 30 min before inducing of LTP.Results: Results showed that sole administration of the antagonists inhibited LTP, with respect to the control group. Also, co-administrating of them reduced LTP as compared to the control group, but not significantly more than that when the antagonists were solely microinjected into the CA1. Nonetheless, the inhibitory effect of concurrent administration of the antagonists on LTP lasted until the end of the recording. Conclusion: These results propose that endogenous cannabinoids and orexins play a role in the expression of LTP, at least by CA1-CB1Rs and CA1-OX2Rs, respectively. Finally, there is no interaction between CB1R and OX2R on the induction of LTP in the Schaffer collateral-CA1 synapses; therefore, these two systems possibly act through common signaling pathways in the hippocampus’s CA1 region.
کلیدواژه‌های انگلیسی مقاله AM251, Cannabinoid receptors, Hippocampus, Long-term potentiation, Orexin receptors, TCS OX2 29
نویسندگان مقاله | Reza Fartootzadeh
Department of Physiology, Ramsar Campus, Mazandaran University of Medical Sciences, Ramsar, Iran|Department of Physiology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran


| Ramezan Taheri
Nanobiotechnology Research Centre, Baqiyatallah University of Medical Sciences, Tehran, Iran


| Mohammad Reza Nourani
Nanobiotechnology Research Centre, Baqiyatallah University of Medical Sciences, Tehran, Iran


| Kamelya Goudarzi
Department of Psychiatry, Ramsar Campus, Mazandaran University of Medical Sciences, Ramsar, Iran
نشانی اینترنتی https://ijbms.mums.ac.ir/article_23565.html
فایل مقاله فایلی برای مقاله ذخیره نشده است
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده Original Article
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات