CCK-8對足底電擊誘導的嗎啡CPP重燃的影響
[Abstract]:Objective to establish (CPP) model of morphine conditioned place preference (CPP) and to observe the effect of exogenous CCK-8 on the reburning of morphine CPP induced by plantar electric shock, and to explore its mechanism. Methods the model of morphine CPP reburning induced by plantar electric shock was established. CCK-8 (0.1 渭 g),) was injected into the lateral ventricle before CPP reburning to observe the effect of exogenous CCK-8 on morphine CPP reburning induced by plantar electric shock. In addition, intraventricular injection of CCK-8 and CCK receptor antagonist (CCK1 receptor antagonist L-364CK 2 receptor antagonist L-365260) and opioid receptor antagonist (non-selective opioid receptor antagonist naloxone) were given to the lateral ventricle before reburning. CTAP), a highly selective 渭 opioid receptor antagonist, was used to investigate the mechanism of CCK-8 inhibiting the reburning of morphine CPP induced by plantar shock. Results 1the expression of CPP was successfully reactivated by plantar shock, and 0.1 渭 g CCK-8 and 1 渭 g CCK-8 effectively inhibited the inhibitory effect of CCK-8 on the reburning of morphine CPP induced by plantar shock. Both L-364718 and naloxone antagonists could block the inhibitory effect of CCK-8 on morphine CPP reburning induced by plantar electroshock. Conclusion CCK-8 can inhibit morphine CPP reburning induced by plantar electric shock through CCK1 receptor, and this effect is related to opioid receptor.
【作者單位】: 武警后勤學院;河北醫(yī)科大學基礎醫(yī)學院法醫(yī)學系河北省法醫(yī)學重點實驗室;云南省第二人民醫(yī)院急診內(nèi)科;
【基金】:國家自然科學基金資助項目(No 81273337) 河北省自然科學基金資助項目(No H2013206157)
【分類號】:R96
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