大分子物质

脑血管对大分子物质通透性增加在脑水肿形成中的作用

The role of cerebrovascular permeability to macromolecular substances in the

肠粘膜通透性明显升高时，一些细菌毒素、细菌、大分子物质都可以穿过肠屏障进入血液或者腹腔。

Some bacterial toxins , bacteria , macromolecular substances can pass through the intestinal mucosal barrier into the blood or abdominal cavity when intestinal mucosal permeability significantly increased .

有机大分子物质（包括多胺、碳水化合物、纤维素）作为有机衬质参与了植物的Si沉积过程；

Big organic molecules ( including polyamines , carbohydrate and cellulose ) participate in silicon accumulation as matrixes ;

用电导法研究悬浮介质中大分子物质对红血球细胞（RBC）聚集的一种抑制效应

An inhibition effect of macromolecules on RBC aggregation studied with conductive method

晚期糖基化终末产物（AGEs）是蛋白质、脂质或核酸等大分子物质的非酶糖基化产物。

Advanced glycation end products ( AGEs ) are formed in proteins , lipids or RNAse by combined nonenzymatic glycation and oxidation ( glycoxidation ) reaction .

以苜蓿转化细胞系和对照细胞系为材料，利用同位素标志方法研究了3种大分子物质&DNA、RNA和蛋白质的合成动态。

The synthesis of three kinds of macromolecular substances-DNA , RNA and protein in transformed and control cell line of Alfalfa was studied using isotope-tracing methods .

对于腐殖质对重金属元素的络合，堆肥后大分子物质结合更多的Mn，但小分子物质更易与Zn结合；

For the combination of humus to heavy metals , through composting the giant molecule substance combined more Mn , the little molecule substance easily combined Zn ;

这种不具ER的简单胞间连丝对于大分子物质的运输，特别是原生质、染色质及细胞核的胞间迁移，可能是一种更有效的通道。

The plasmodesma without ER might be a more effective pathway for macromolecules intercellular transport , particularly , for the intercellular movement of protoplasm , chromatin and nucleus .

花青素及其降解产物在人和动物体内能有效地阻止DNA等大分子物质的氧化损害，具有预防、治疗疾病与身体保健等功能。

The anthocyanins and degraded metabolic products in body of human and animal can effectively prevent the macromolecules such as DNA from damaging by oxidation , thus with functions of the preventing and curing diseases , protecting health and so on .

硝酸纤维素（NC）膜是最早商业化的微孔膜，近十几年来由于其对生物大分子物质的非特异吸附性能而被广泛应用于生化领域。

Nitrocellulose ( NC ) membrane is the fist commercialized micro-porous membrane , which was widely used in the last twenty years in the fields of biology and medicine because of its strong absorption ability for biological macromolecules .

通常认为悬浮介质中的大分子物质促进RBC聚集的桥联作用，使RBC聚集，但在高浓度时，大分子物质反而抑制RBC聚集。

The macromolecules in suspending medium were usually looked upon as an agent bridging two erythrocytes and enhancing RBC aggregation . But , macromolecules in high concentration can inhibit RBC aggregation .

结果超滤后，病人的血细胞及蛋白等大分子物质的浓度明显提高，而IL－8、ET和尿素氮、肌酐这些中小分子物质的浓度经白蛋白校正后明显降低，TNF浓度无明显变化。

Results After ultrafiltration , hematocrit and the concentrations of macromolecular substances such as the concentration of IL - 8 . ET. BUN and Cr were decreased significantly , but the concentration of TNF did not change obviously .

在AMI后，OPN及整合素合成增加，可能调节成纤维细胞增殖、迁移和分泌Ⅰ型胶原和Ⅲ型胶原等大分子物质，进一步加重心室重塑，具体机制不清，国内也未见文献报道。

After AMI , OPN is also likely to regulate the process of cardiac fibroblasts proliferation , migration , secretion collagen type ⅰ and collagen type ⅲ, and aggravate ventricular remodeling .

过去认为主要是高浓度大分子物质影响了RBC表面势能，但我们在研究中发现，在一定条件下低浓度的大分子物质也能抑制红细胞聚集。

The reason was considered to be that macromolecules in high concentration can enhance RBC surface potential . But , we found macromolecules in low concentration can also inhibit RBC aggregation under certain condition .

采用溶血试验，小鼠肝、肾组织脂质过氧化产物丙二醛（MDA）测定，受照质粒构象改变等方法测定茶多酚对生物大分子物质氧自由基损伤的保护作用。

The protective actions of Tea Polyphenols ( TP ) on free radical damage were determined by using hemolysis test , assay of MDA level in mice tissue homogenates and the change of conformation of plasmid PUC 18 irradiated .

重度HIE患儿可能存在着血脑屏障的破坏，Epo可能透过血脑屏障。胶质瘤性脑水肿不一定是血浆等大分子物质通透性增加的结果。

Impaired blood - brain barrier might account for the increased CSF Epo levels . The edema induced by glioma cells may not be the result of hyperpermeability of blood CSF barrier to macromolecules in plasma .

用炭黑政性聚丙烯腈原丝，制得了富含中孔的活性炭纤维，研究了它对大分子物质VB12的吸附性能。

The mesoporous activated carbon fibers have been manufactured from polyacrylonitrile fibers with carbon black addition , then its adsorption of VB12 has been studied .

MBR系统中由于膜对大分子物质的截留作用，运行前120d出现溶解性微生物产物的积累，但随着微生物的驯化，这些积累的微生物产物最后得到降解。

Soluble microbial products accumulated in the MBR during the first 120 days in operation due to membrane interception of macromolecules , but these accumulated substances were degraded at last with microbial acclimation .

推测某些大分子物质能激活CR1，中小分子量血浆物质中C3b片段和C3b灭活因子（KAF）在调节红细胞免疫粘附功能中起着重要作用。

It could be deduced that some large molecule substances could activate CR1 and C3b fragments , and the KAF might play important role in modulating red blood cell immune function .

背景与目的肾素-血管紧张素系统（RAS）和激肽释放酶-激肽系统（KKS）都是由许多大分子物质组成，参与许多生理和病理过程。

BACKGROUND AND OBJECTIVES The renin – angiotensin system ( RAS ) and the kallikrein – kinin system ( KKS ) each encompasses a large number of molecules that participate in many diverse aspects of physiology and pathophysiology .

获得了一个可能在c-AM核-质穿梭过程中具有调控作用的蛋白：核孔蛋白p62。核孔复合物（NPC）是大分子物质进行核。

One c-Abl binding protein of particular interest was nucleoporin p62 of nuclear pore complex ( NPC ), which is embedding in the nuclear envelope and as the unique channel for trafficking macromolecules between the nuclear and cytoplasmic compartments .

用酚氯仿去除重复缺氧鼠脑匀浆液中的蛋白质等大分子物质，以乳酸脱氢酶（LDH）透出率为指标，观察去蛋白匀浆提取液对缺氧突触体的保护作用。

To observe protective effect of protein free brain homogenate taken from mice exposed repetitively to hypoxia on hypoxic insult of synaptosome , protein and macromolecular substances were removed by phenol chloroform from the homogenate , and efflux rate of lactate dehydrogenase ( LDH ) was measured as an index .

初步研究了不同碳源对降解菌G8产酶活力的影响及其几丁质酶的基本特性，期望通过酶消化法对废渣进行预处理，释放残抗及其他胞内大分子物质，提高废渣的厌氧消化效率。

Preliminary study of different carbon sources on the G8 enzyme activity of chitinase and its basic characteristics , expectations through enzymatic digestion of the echinocandin B fermentation residue to release the residual antibiotic and other intracellular materials to improve the efficiency of their anaerobic digestion .

文章对细胞穿透肽PEP-1在大分子物质体内外跨膜转导中的应用进行了综述，为进一步研究PEP-1介导有潜在治疗价值的大分子物质跨膜转导进行疾病的蛋白治疗提供了依据。

The purpose is to review the application of macromolecule transduction mediated by cell-penetrating peptide PEP-1 in vitro as well in vivo and to provide a basis for the transduction of macromolecule mediated by PEP-1 in protein therapy of many diseases .

煤是复杂的网状大分子物质。

The coal is a material of complex aromatic cross-linked macromolecule .

凝集素是一种能作用于细胞使其凝聚的大分子物质，大多属糖蛋白。

Lectin is a large molecule glucoprotein and can agglomerate the cell .

天然大分子物质主要包括蛋白、核酸和糖类。

Natural big molecular substances mainly include protein , nucleic acid and sugars .

凝胶萃取浓缩分离大分子物质

Concentration and Separation of Macromolecular Solution by Gel Extraction

它们常会分泌酶类以利于将大分子物质消化分解然后吸收可溶物质。

Saprobes usually secrete enzymes on their food and absorb the soluble breakdown products .

大分子物质构型和柔顺性及其在肾小球的通透性糖皮质激素对肾小球滤过膜通透性的影响

Influence of macromolecular configuration on glomerular permeability