阻断剂

In order to verify nicotine effect to heart of rat , analyzing the electrograph Based on these results , it was demonstrated that nicotine can induce to release acetylcholine locally or act on muscarinic cholinoreceptor controlled by parasympathetic nerve .

为进一步确定烟碱对大鼠心脏的作用，对描记烟碱作用后大鼠心电图进行分析，发现烟碱能引起大鼠心电图显示较长的QT间期，增加了PR间期及T波面积，与肾上腺素或去甲肾上腺素引起的QT间期延长相似，且能被M受体阻断剂阿托品所阻断，说明烟碱能够诱导局部释放乙酰胆碱或者作用于部分副交感神经控制的毒蕈碱受体。

On the normotensive rat, pretreatment with verapamil (0.25 ug/0.1 ul/site), the blocker of calcium channels, by microinjection into the rVLM bilaterally, not only caused a complete block effect on the elevation of BP, HR and the pressor response to defense stimulation by the subsequent microinjection of physostigmine, glucocorticoid or mineralocorticoid (the same dosage as mentioned above) into the same sites, but also led to a slight reduction on the basal cardiovascular activities to a certain extent.

四、在正常血压大鼠上预先用钙通道阻断剂维拉帕米(0.25μg/0.1μl/site)微量注射至双侧rVLM，不仅能阻断随后在同部位微量注射毒扁豆碱(0.4μg/0.1μl/site)、肾上腺糖、盐皮质激素(分别为40ng/0.1μl/site)所致的升压、加快心率、以及电刺激dPAG诱发的防御性升压反应，而且能引起上述指标不同程度的较弱的降低。

CGP35348, a GABA_B antagonist can completely stop the effect, while Picrotoxin, a GABA_A antagonist didnt affect this effect.

GABAB的阻断剂CGP35348可以完全阻断这种效应，而GABAA拮抗剂Picrotoxin无法阻断此效应。

Phasic GABA receptorswere selectively blocked using the GABAA antagonist gabazineand tonic responses were blocked using the chloride channelblocker picrotoxin.

使用GABAA拮抗剂gabazine选择性阻断相位性GABA受体，采用氯离子通道阻断剂印防己毒素阻断持续性反应。

It was demonstrated that toosendanin was a selective presynaptic blocker, which blocked the neurotransmitter release both in peripheral and central nervous system.

已有的研究表明，它是一种作用于突触前的特异性传递阻断剂，通过抑制神经递质释放阻断神经肌肉接头和中枢神经系统的兴奋传递。

Selenium on the role of tumor cells mainly as follows: Se is the destruction of tumor cells; Selenium is blocking tumor cell energy; selenium is the effect of anticancer drugs enhancer. 1999, the Chinese Academy of Agricultural Sciences, the experts in the integration of the Western anti-tumor the essence, the trace element selenium and medicine Xiancao "fungus spores on" organic combination of the successful production of the anti-tumor products combining Chinese and Western - Se Ganoderma Po.

硒对肿瘤细胞的作用主要表现为：硒是肿瘤细胞的杀伤剂；硒是肿瘤细胞的能量阻断剂；硒是抗肿瘤药物的药效增强剂。1999年，中国农业科学院的专家们融合中西方抗肿瘤理论精髓，将微量元素硒与中药仙草"灵芝孢子粉"有机地结合在一起，成功研制出了中西结合抗肿瘤产品———富硒灵芝宝。

Selective α2-AR blocker yohimbine (15 μ mol/L) partly abolished the inhibitory effect of Agm on baroreceptor.

预先灌流α2-AR阻断剂育亨宾(15 μmol/L)可部分阻断Agm的抑制效应。

These epileptoid bursts were not blocked by a mixture of CNQX, AP-5 and Bic, but by low dose of TTX.

这种放电不被突触阻断剂CNQX+AF-5+Bic阻断，但能被小剂量TTX阻断。

Beta blockers halt this process by blocking adrenaline receptors and slowing the heart rate.

beta-受体阻断剂通过阻断肾上腺素受体而阻断肾上腺素的这种正性肌力作用，减缓心率。

In a 12-week study of 40 obese people, those using the starch neutraliser lost an average of 3.5kg (7lb 11oz) each, compared with an average weight loss of 1.2kg (2lb 10oz) by those in the control group.

2在为期12周的研究中， 40个肥胖的人，那些服用淀粉阻断剂的一组平均每人减少三点五公斤（七磅11盎司），而没有服用淀粉阻断剂的控制组平均每人失重一点二公斤。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。