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观察硝苯地平治疗前及治疗2个月后高血压患者血压、血浆β-内啡肽(β－EP)、亮啡肽(LEK)、精氨酸加压素(AVP)、P物质(SP)、神经降压肽(NT)、去甲肾上腺素(NE)及肾上腺素(E)的变化.发现治疗前SP、NT、β－EP和LEK与对照组比较明显降低(P“,”Plasma concentration of beta-endorphin (β - EP), leucine enkephalin (LEK), arginine vasopressin (AVP), neurotensin (NT), P-substances(SP), norepinephrine (NE) and adrenoceptor (E) were determined before and 2 months after the treatment with Nifedipine in patients with essential hypertention liangdong. Before the treatment, the patients hed lower levels of β - EP, LEK, SP and NT (P