期刊论文

BEHAVIOR OF RADIOACTIVE CERIUM IN A SIMULATED AQUATIC ECOSYSTEM

中文

生态学报

ACTA ECOLOGICA SINICA

1000-0933

1997

17

3

277-281

浙江省自然科学基金

本校为其他机构

目的评价补阳还五汤及其精简方对脑缺血损伤的保护作用。方法体内实验:SD大鼠按体质量随机分为假手术组、局灶性脑缺血(MCAO)模型组、补阳还五汤组和补阳还五汤精简方组,每组10只,观察各组大鼠体质量、脑梗死面积和脑含水量等指标的变化。体外实验:采用过氧化氢(H2O2)对大鼠肾上腺嗜铬细胞瘤细胞(PC12细胞)致损,建立体外氧化应激细胞模型,将PC12细胞分为正常组、空白对照组、补阳还五汤组和补阳还五汤精简方不同浓度组(0.1、0.2、0.5、1.0、2.0、3.5 mg/mL)及模型组,MTT法考察补阳还五汤及其精简方对模型细胞的保护作用。结果体内实验表明,补阳还五汤及其精简方给药7 d后,均能恢复MCAO模型大鼠的...

The dynamics of transport, accumulation and disapperance of 141 Ce in pond watersilt-aquatics system were studied. The results showed that the relation between the concentra-tion of 141 Ce in each compartment and the time could be described by multi-component expo-nential laws. The concentration of 141 Ce in pond water decreased monotonously with time,but the concentration of 141 Ce in silt would increase with time. The concentration of 141 Cein the aquatics increased to their maxima then decreased slowly. 141 Ce could be concentratedby the aquatics to a certain degree, and the magnitude of th...