脂酶

The effects of drought stress on lipid peroxidation and protective enzyme systems in leaf of Toona sinensisA.

苗进行盆栽实验，研究干旱胁迫对香椿叶片膜脂过氧化和保护酶系统的影响。

It is concluded that acute cadmium toxication would cause lipid peroxidation and excessive free radical production,and inhibit the activities of antioxidases leading to severe injury of hepatocytes.

镉可引起肝脏脂质过氧化及自由基的大量产生，抑制抗氧化酶的活力，造成细胞的严重损伤。

Objective: To investigate the cellular signal transudation pathway of vascular smooth muscle cell proliferation and cytokins secretion stimulated by oxidized low density lipoprotein and insulin-like growth factor-1 (IGF-1) and the intervention effect of HMGcoA reductase inhibitor, atovastatin and immune supppressor, rapamycin.

目的：探讨氧化低密度脂蛋白，胰岛素样生长因子-1(IGF-1)促血管平滑肌细胞增殖及分泌功能改变的细胞内信号转导机制及三羟基三甲基戊二酰辅酶A抑制剂阿托伐他汀与免疫抑制剂雷帕霉素干预作用。

Objective: To investigate the cellular signal transudation pathway of vascular smooth muscle cell proliferation and cytokins secretion stimulated by oxidized low density lipoprotein and insulin-like growth factor-1(IGF-1) and the intervention effect of HMG-coA reductase inhibitor, atovastatin and immune supppressor .rapamycin.

目的：探讨氧化低密度脂蛋白，胰岛素样生长因子-1(IGF-1)促血管平滑肌细胞增殖及分泌功能改变的细胞内信号转导机制及三羟基三甲基戊二酰辅酶A抑制剂阿托伐他汀与免疫抑制剂雷帕霉素干预作用。

The protection of AF－1 was observed with the measurement of transudatory rate of LDH ,the breaking rate of DNA and contents of LPO and SOD,Results:The intotoxincation of glutamate was decreased by AF－1 which reduced the transudatory rate of LDH,the breaking rate of DNA and the content of LPO,and increased the content of SOD in culture significantly.

通过测定乳酸脱氢酶漏出率、DNA断裂率、超氧化物歧化酶和脂质过氧化物，观察AF－1药物的保护作用。结果：高浓度的谷氨酸可增加培养神经细胞的LDH释放率和DNA断裂率，并诱导自由基产生。AF－1明显降低谷氨酸的神经细胞毒性，使LDH释放率及DNA断裂率明显降低，LPO含量明显下降，SOD含量明显升高。

Observe the formula's effects to the diabetic nephropathy rat model cause by small dose STZ injured, high lipin feed and hemiresection, the results showed that can decrease significantly blood sugar after diet 2h, control availably hyperplasia of glomerulus mesenteric cell, inhibite tumefaction of glomerulus capillary endothelial cell, keep integrality of podocytic process and basement membrane, relieve vasal cavum stricture, reduce the GFR and excretory rate of 〓-MG, improve the status of high blood lipin, specially decrease significantly TC, reduce the 〓 and T/K, improve the status of microcirculation obstacle, elevate the activity of 〓-〓-ATP enzyme.

观察降糖益肾方对小剂量STZ诱导并单侧肾切除，高脂饲料喂养的糖尿病肾病大鼠模型的影响实验结果：对2h后血糖有显著降低作用（p.05），能有效抑制肾小球系膜基质的增生，减轻肾小球毛细血管内皮细胞肿胀，保持足突与基底膜的完整性，减轻血管腔狭窄，降低GFR、尿微量白蛋白以及〓-微球蛋白的排泄率（p.05），能改善高血脂状态，降低血TG、TC含量（p.05），降低〓与T／K比值（p.05），改善微血管循环障碍的状态；能升高肾组织中〓-〓-ATP酶的活性（p.05）。

Ultrastructural observation showed that there was a great deal of damage by Cd2+ pollution:The thylakoids of chloroplast and cristae of mitochondria became swollen or vesiculate and disintegrated finally;The nucleus were distorted and the nuclear membrance was disrupted.

但随着毒害的加重，当超出细胞的保护限度，将会导致保护酶活性降低，抗氧化物质含量下降，而丙二醛等膜脂过氧化产物大量产生，膜透性增加，使植物体受害加剧。

Free radical hurts biological large molecules, lets lipid peroxid- ize and damages membrane, the weakening of antiperoxidation system in vivo (vit E, SOD, GSH-PX) will increase the harmful effect of radical on cells.

自由基损伤生物大分子，使脂类过氧化，造成膜损伤；机体抗氧化体系(维生素E，超氧化物歧化酶，谷胱甘肽过氧化物酶等)作用的削弱会加重自由基的细胞毒作用。

After 8 weeks,PDGF-B measured with reverse transcription polymerise chain reaction and pathologic alter were observed with HE staining.

高脂喂养6周后以球囊拉伤方法建立兔颈总动脉内皮损伤模型。8周时处死动物，以逆转录聚合酶链式反应法检测动脉损伤处PDGF-B mRNA表达，HE染色观察颈动脉组织病理形态学改变。

Unsaturation of fatty acids in thylakoid membrane was accelerated, which might be helpful to stabilize photosynthetic apparatus. Distortion and swelling of grana caused by chilling in the dark probably decreased activities of antioxidant enzymes, which resulted in the accumulation of active oxygen species.

低温弱光胁迫对膜脂脂肪酸组成和叶绿体超微结构的影响均比暗中低温胁迫严重，而活性氧清除酶的活性有所下降，活性氧积累。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。