資料載入中.....
|
請使用永久網址來引用或連結此文件:
http://ir.ncue.edu.tw/ir/handle/987654321/11998
|
| 題名: | Cardiopulmonary Response to Vasopressin-Induced Activation on V1A Receptors in the Lateral Ventrolateral Medulla in the Rat |
| 作者: | Cheng, Meng‐Tzu;ChuangChing-Wen;Lin, Jin-Tun;Hwang, Ji-Chuu |
| 貢獻者: | 生物學系 |
| 關鍵詞: | Arginine vasopressin;AVP V1A-receptor antagonist;Ventrolateral medulla;Phrenic nerve activity;Hypercapnia;Blood pressure;rat |
| 日期: | 2004-03
|
| 上傳時間: | 2012-07-03T02:45:09Z
|
| 出版者: | The Chinese Physiological Society & Airiti Press |
| 摘要: | The aim of the study was to examine whether or not arginine vasopressin (AVP) might modulate
cardiopulmonary functions by acting on the lateral area of the ventrolateral medulla (VLM) in the rat.
The rat was anesthetized, bilaterally vagotomized, paralyzed, ventilated, and then placed on a stereotaxic
instrument in a prone position. Activity of the phrenic nerve (PNA) was monitored at normocapnia and
hypercapnia in hyperoxia. Microinjection of AVP into the lateral region of the VLM resulted in a brief
apnea followed by a significant decrease in PNA amplitude and a concomitant significant increase in
blood pressure. The inhibition of PNA with AVP treatment could be partly attenuated by hypercapnia
but not by phentolamine. Both inhibition of PNA and pressor response with AVP microinjection into the
lateral VLM were totally abolished after pretreatment with AVP V1A receptor antagonist. These results
suggest that a vasopressinergic pathway projects to the lateral VLM and modulates cardiopulmonary
functions via AVP V1A receptors on neurons within the lateral VLM. |
| 關聯: | The Chinese Journal of Physiology, 47(1): 31-42 |
| 顯示於類別: | [生物學系] 期刊論文
|
文件中的檔案:
| 檔案 |
大小 | 格式 | 瀏覽次數 |
|---|
| index.html | 0Kb | HTML | 613 | 檢視/開啟 |
|
在NCUEIR中所有的資料項目都受到原著作權保護.
|
