國家衛生研究院 NHRI:Item 3990099045/1210
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    題名: Sympathoinhibitory action of nociceptin in the rat spinal cord
    作者: Brailoiu, GC;Lai, CC;Chen, CT;Hwang, LL;Lin, HH;Dun, NJ
    貢獻者: Division of Biotechnology and Pharmaceutical Research
    摘要: 1. Whole-cell patch recordings were made from antidromically identified sympathetic preganglionic neurons (SPN) of immature rat spinal cord slices. Bath application of nociceptin (0.1-1 mumol/L) suppressed excitatory postsynaptic potentials (EPSP) and hyperpolarized a population of SPN; these effects were naloxone (1 mumol/L) insensitive. 2. Nociceptin suppressed the amplitude of EPSP without causing a concomitant change in glutamate-induced depolarizations, suggesting a presynaptic inhibitory action. 3. Analysis of current-voltage relationships showed that nociceptin hyperpolarized SPN by increasing an inwardly rectifying K+ current. 4. Intrathecal injection of nociceptin (3, 10 and 30 nmol) to urethane-anaesthetized rats dose-dependently reduced the mean arterial pressure and heart rate; these effects were not prevented by prior intravenous injection of naloxone (1 mg/kg). 5. Results from our in vitro and in vivo experiments suggest that nociceptin suppresses spinal sympathetic outflow either by attenuating excitatory synaptic responses or hyperpolarizing SPN.
    關鍵詞: Pharmacology & Pharmacy;Physiology
    日期: 2002-03
    關聯: Clinical and Experimental Pharmacology and Physiology. 2002 Mar;29(3):233-237.
    Link to: http://dx.doi.org/10.1046/j.1440-1681.2002.03635.x
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=0305-1870&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000174646700015
    Cited Times(Scopus): http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0036126491
    顯示於類別:[陳炯東] 會議論文/會議摘要

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