any agent that causes a narrowing of an opening of a blood vessel: cold or stress or nicotine or epinephrine or norepinephrine or angiotensin or vasopressin or certain drugs; maintains or increases blood pressure
5. Endothelin (ET) is a recently discovered potent vasoconstrictor peptide exerting effects through combination with its receptor.
内皮素(et)是一种血管收缩肽，与et受体结合而发挥作用。
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6. In acutely sympathetically denervated areas, the skin or extremity is warm because of loss of sympathetic vasoconstrictor tone.
急性失交感神经支配的皮肤或者肢端由于失去了交感性缩血管神经紧张作用，皮肤是温暖的。
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7. Endothelin-1(ET-1) is a powerful intrinic vasoconstrictor, which plays an important role in the development of pulmonary hypertension.
内皮素（ET）-1是强有力的内源性血管收缩剂，在肺动脉高压的发病机制中发挥重要作用。
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8. Conclusion: Vasoconstrictor can increase tumor blood flow, increase flow velocity, decrease ri and it can be used in tumor hemodynamic study.
结论：血管收缩剂引起肿瘤血供增加，血液流速增快，阻力指数降低，可用于肿瘤的血流动力学研究。
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9. ACE inhibitors work by inhibiting the conversion of angiotensin I to the potent vasoconstrictor, angiotensin II, thereby improving blood flow and blood pressure.
ACE抑制剂的工作，通过抑制血管紧张素I的转化可以强化血管，血管紧张素Ⅱ可改善血流和血压。
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10. An adrenergic drug, C9H13NO2, that is a powerful vasoconstrictor and is used to relieve nasal congestion, dilate the pupils, and maintain blood pressure during anesthesia.
11. Conclusion CRA seems to be relate to the renal and splenic hemodynamics, also relate to the histology, the Doppler parameters of portal hypertension and the activity of vasoconstrictor systems.
12. The results show; (1) The increased hepatic vasoconstrictor reactivity and the adhesive function of platelets in viral infection are the basic mechanism of the hepatic microcirculatory disturbance.
结果提示：（1）在病毒感染中肝血管收缩反应性上升及血小板粘附功能增强是肝微循环障碍发生的基础。
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13. The results show; (1) The increased hepatic vasoconstrictor reactivity and the adhesive function of platelets in viral infection are the basic mechanism of the hepatic microcirculatory disturbance.
结果提示：（1）在病毒感染中肝血管收缩反应性上升及血小板粘附功能增强是肝微循环障碍发生的基础。
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用作形容词 (adj.)
Various mechanisms have been reported, including vasoconstrictor substances, pharmacologic stimuli, and neurohumoral effects. 各种机转曾被报告过，包括促血管收缩物质，药物的刺激及神经荷尔蒙的影响。
Since the reduced effective volume is due to extreme vasodilation then a vasoconstrictor can be used and the vasoconstrictor for which there is the most experience is Terlipressin. 由于减少的有效血容量起因于血管扩张，血管收缩剂可以用于治疗此病，有效的血管收缩剂是特利加压素。
