کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4137220 | 1272015 | 2012 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Role of cuneiform nucleus in regulation of sympathetic vasomotor tone in rats
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موضوعات مرتبط
علوم پزشکی و سلامت
پزشکی و دندانپزشکی
آسیبشناسی و فناوری پزشکی
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چکیده انگلیسی
The cuneiform nucleus (CnF) is a sympathoexcitatory area involved in the central cardiovascular regulation. Its role in the maintaining vasomotor tone has, however, not yet been clarified. In the present study the effects of cobalt chloride (CoCl2) a nonselective synapse blocker and NMDA and non-NMDA glutamate receptors on resting mean arterial blood pressure and heart rate of CnF have been evaluated. CoCl2, AP5 (an NMDA receptor antagonist) and CNQX (an AMPA/kinase receptor antagonist) (100Â nl) were microinjected into the CnF of anesthetized rats. The blood pressure and heart rate were recorded throughout the experiment. The responses of blood pressure and heart rate were compared with the pre-injection (paired t-test) and control (independent t-test) values. Microinjection of CoCl2, AP5 and CNQX did not change the basal blood pressure and heart rate. In conclusion, our present study indicates that the CnF is not important in the regulation of cardiovascular tone.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Pathophysiology - Volume 19, Issue 3, June 2012, Pages 151-155
Journal: Pathophysiology - Volume 19, Issue 3, June 2012, Pages 151-155
نویسندگان
Mohammad Naser Shafei, Ali Nasimi, Hojatallah Alaei, Ali Asghar Pourshanazari, Mahmoud Hosseini,