查询词典 phosphatidylcholine

In this thesis the planar bilayer lipid membranes inlaid with oxide cholesterol , phosphatidylcholine or cephalin have been prepared .The effects of membranes formulas on membranes stability and zinc ions transfer ability have also been studied.

中文摘要采用氧化胆固醇与磷脂混合作为成膜液制备双分子层脂质膜的方法，研究了制备平板双分子层脂质膜的配方和成膜条件，并对制得的双分子层脂质膜的稳定性、离子通透性、离子选择通过性能、双层膜中氧化胆固醇对通透性的影响等进行了研究。

But when the cholesterol was substituted by its oxide result, the membrane life time extended to nearly 60 hrs ;besides the diameter of the hole on which the membrane exists 、temperature、PH value cause great effects to the life time of the membrane, and the diameter was the most important element. When the diameter larger than 3mm it is almost no way to form a membrane on the hole under experiment condition. Between 1mm and 3mm it has a better result by change the prescription of the membrane. when it is 0.5mm all the membrane can last more than 40 hrs ,and the prescription like Och : phosphatidylcholine / cephalin＝4:1; 3:1; 2:1; 1:1; 2:3 need the request of the experiment basically, when cooperate with multi hole structure it is very to detect the concentration and found the model.

研究结果说明，成膜在普通胆固醇/磷脂配方下不能达到满意的结果，无论如何改变外界条件成膜始终超不过7小时，而将胆固醇换成氧化胆固醇再和磷脂按照一定配比的时候，成膜时间则大大延长，可达60h左右；另外除成膜配方，成膜孔径、温度、PH值等因素对成膜有着很重要的影响，成膜孔径对膜的影响最为关键，在3mm以上的孔径时成膜比较困难，在1－3mm适当提高成膜液浓度可以改善，孔径为0.5mm左右成膜比较稳定基本都能达到40h以上，合适的几个配方如卵/脑磷脂：氧化胆固醇＝4：1；3：1；2：1；1：1；2：3基本满足实验要求，配合一板多孔结构，可以保证单位时间的离子传输量的检测和计算。

Lecithin contains phosphatidylcholine, a rich source of choline in the body.

卵磷脂含有卵磷脂，具有丰富资料来源的胆碱在体内。

Objective To investigate the effect of soybean phosphatidylcholine on the motor and cognitive function impaired by cerebral palsy of neonatal rats.The immunoreactivity of brain derived GhAT were pevformed by immunohistochemicel method in hippocampus formation.

目的 研究大豆磷脂酰胆碱对脑瘫幼鼠运动、认识功能的影响，应用免疫组化的方法观察乙酰胆碱转移酶在海马CA1区的表达变化，探讨PC对脑瘫鼠运动、认知功能障碍改善作用的机理。

Lecithin, Phosphatidylcholine, Phosphatidylserine, Evening primrose, Flax Linum usitatissimum,Lactobacillus acidophilus(25,000 viable cells;, Lipid-digesting minerals

蛋黄素，卵磷脂，磷脂酰丝氨酸，月见草，亚麻（亚麻，嗜酸乳杆菌（ 25000活细胞；），脂质消化矿物

It reflected lower phosphatidylcholine and phosphatidylcholine and sphingomyelin content in serum of leukemia patients, especially for original untreatment patient.

结果，白血病人血清中的磷脂信号强度相对正常人明显偏低，反映了对应的PC及含量相对正常人偏低，尤其对初发未治疗的病人，差别更加明显。

Objective: Novel liposomes composed of hydrogenated soybean phosphatidylcholine and soybean phosphatidylcholine was prepared to encapsulate total alkaloids from seed of Strychnos nux-vomica. The pharmaceutical properties of the novel liposomes were compared with corresponding HSPC or SPC liposomes.

中文摘要：目的：制备了以氢化大豆磷脂和普通大豆磷脂为膜材的马钱子总生物碱复合磷脂脂质体，并与相应的单一磷脂脂质体比较药剂学性质。

Objective:To detect the rat model of non-alcohol fatty liver disease the effect of medical intervention Methods: The Wistar rats were fed with high fatty chow for 12 weeks to induce NAFLD.And then,these rats were fed the low fatty chow,and separately intervened by Rhizoma polygoni cuspidate,Polyene phosphatidylcholine and metformin hydrychloride or controlled by distill water for 4 weeks.The total RNA of adipose tissue was extracted and reversely translated into cDNA.

Non-alcohol fatty liver disease；Intervention；Rhizoma polygoni cuspidatei；Polyene phosphatidylcholine；Metformin hydrychloride非酒精性脂肪肝病（Non-alcohol fatty liver disease，NAFLD）是无过量饮酒史的肝实质细胞脂肪积贮和变性的病理综合症，是由于肝脏本身和各种肝外因素引起的肝脏脂肪代谢功能障碍，导致肝细胞内脂类物质蓄积过多的一种病理变化，常见原因有营养缺乏、肥胖、糖尿病、妊娠、糖皮质激素、肝炎及药物或毒物的损伤等[1]，发病机理尚未完全清楚。

Phosphatidylcholine-specific phospholipase C might play a key role in the signal transduction. The PC-PLC hydrolyses phosphatidylcholine to DAG. DAG is the second message in the cells and activates protein kinase C and mitogen-activated protein kinase.

磷脂酰胆碱特异性磷脂酶C在信号传递过程中具有重要作用，能特异性水解磷脂酰胆碱产生第二信使——二酯酰甘油，而DAG又可以激活蛋白激酶C，进一步把信号传递给丝裂原活化蛋白激酶，从而参与调控细胞增殖、分化和凋亡。

To reduce the water content of soybean phosphatidylcholine product, the vacuum freeze-drying of soybean phosphatidylcholine was conducted.

以降低大豆卵磷脂产品的含水量为目标，对大豆卵磷脂进行了真空冷冻干燥的实验研究。

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。