微绒毛
- 名microvillus
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SEM下见细胞表面大量的微绒毛;
SEM verified the abundant microvilli on the surface of the cells .
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超微病理改变表现为肺泡上皮细胞水肿,I型上皮细胞肿胀,n型上皮细胞微绒毛脱落,板层体排空,血管内皮细胞肿胀,肺泡隔间隙明显增厚。
Ultrastructural changes showed the edema of epithelial cells and endothelial cells , both type I and type II cell injuries .
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扫描电镜发现Pc滋养体丝状伪足和微绒毛稀疏、变短甚至脱落,表膜出现缺损。
Under SEM , filopodia and microvilli became sparse , short and fell off , a breach appeared in the surface membrane in Pc trophozoites .
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内质网和空泡膜等细胞内膜系统以及细胞表面的微绒毛和纤毛呈POD弱阳性。
Cilia and microvilli on the surface of the epithelial cells in the gill and the labial palps presented weak-ly positive of POD .
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肠化上皮细胞CEA主要分布在吸收细胞的微绒毛及杯状细胞粘液颗粒之间;
In intestinal metaplasia CEA was found among the microvilli of absorptive cells and the mucus particles of goblet cells .
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VD模型组:纤毛和微绒毛均明显减少,且室管膜细胞表面凹凸不平。
VD group : The quantities of cilia and microvilli on the uneven surface of ependyma were reduced obviously .
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结果:TS可破坏S180肿瘤细胞超微结构,使其细胞膜微绒毛变粗短,数量减少,线粒体肿胀;
Result : TS damaged the ultrastructure of S180 cancer cells , shortened and thickened the microvillus , swelled mitochondria .
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B组部分肺泡Ⅱ型上皮细胞表面微绒毛有脱落现象,肺泡隔胶原纤维组织增生,上皮细胞基底部变窄。
Rabbits of group B had the following changes : microvillus of some type ⅱ epithelial cell surface of pulmonary alveoli developed shedding , the collagen fibers tissue of pulmonary alveoli compartment proliferated , and the base of endothelial cell narrowed .
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目的:研究的目的是阐明在ATP缺乏的免近端小管(PT)中,自微绒毛内肌动蛋白细胞骨架上崩解的肌动蛋白是否与非肌动蛋白结合。
Objective : To demonstrate whether the actin breakdown from actin-cytoskeleton in microvilli was bound to any non-actin protein ( s ) in ATP-depleted rabbit proximal tubules ( PT ) .
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我们以往的研究表明,肾脏近端小管上皮细胞ATP缺乏时,从微绒毛脱落的肌动蛋白是和非肌动蛋白结合在一起的。
Our previous study showed that the actin broken down from the microvillar F-actin filaments was bound to non-actin protein ( s ) in pellet of renal PT during ATP-depletion .
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2.5%DMSO处理的ARS,大细胞减少,小细胞增多,微绒毛明显缩短减少。
Under the action of 2.5 % DMSO , large cells were reduced , small cells were increased and microvilli markedly decreased and shortened .
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结果:急性缺血后再灌注2h肾小管上皮细胞腔面微绒毛重新出现,肾小管PCNA阳性细胞开始增加;
RESULTS : After acute ischemia , microvilli in renal tubular cells appeared again after 2h of reperfusion . At the same time , the PCNA-positive cells were initially increased .
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用体外培养和荧光双重标记技术研究小鼠卵母细胞骨架、染色体及细胞质膜表面(微绒毛,conA结合位点)三者间相互关系。
Experiment was carried out to determine the relationship Among the cytoskeleton , chromosomes and plasma membrance ( microvilli , Con A ) in mouse oocyte double stained with fluorescent probes .
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作用72h后,扫描电镜下可见细胞表面的微绒毛数量减少、长度变小、细胞一端有较大的球状突;
After 72 hours , GNM cells became shortened and , the number of microvilli of the cellular surface was observed under the SEM and TEM .
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TEM观察发现,经1.0mg/mlMat处理24h的细胞出现了胞膜上微绒毛消失,染色质边集、核浓缩、核碎裂,凋亡小体形成。
In result of TEM , microvillus disappear , electron density of cytoplasm is high , large deciduous apoptosis bodies appear after being treated with 1.0mg/ml Mat for 24 houres .
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室管膜细胞为柱状或立方状,表面有纤毛和微绒毛,纤毛可与Reissner氏纤维接触。
The ependymal cells are columnar or cubic in shape . Their apical surfaces are provided with microvilli and cilia which may contact with Reissner 's fiber .
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14天光感受器细胞及内节已基本正常,外节再生但盘膜排列稀疏,RPE顶端出现微绒毛。
While on the 14th day after light expose the nuclei of photoreceptors and the inner segments were nearly normal ; the outer segment renewed but the arrangement of the disk was lose ;
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电镜显示使用Dil后肺泡Ⅱ型细胞板层体较多,微绒毛完整。
After using Dil , there are more lamellar bodies in alveolus cell II and the mini-villuses are complete under the electron microscope .
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cAMP对人胃腺癌细胞系SGC-7901的影响微绒毛和Na~+K~+ATP酶活性变化的电镜观察
In vitro effect of 3 ′, 5 ′ - camp on human stomach glandular carcinoma cell line sgc-7901 & electronic microscopic observations of the microvilli and cytochemical changes of na ~ + - k ~ + - atpase activity
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UBIO治疗后白细胞表面微绒毛普遍增多、变粗,其细胞内中性颗粒、天青胺颗粒明显增多,疗效优于药物组。
Microvilli on the surface of leucocyte increased and thickened , the neutrophilic grains became denser in UBIO group which had better effects than medicine-treated group .
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扫描电镜显示:1,25(OH)2D3有抑制ROS17/2.8细胞表面微绒毛的作用。
The decrease of microvillus . on surface of ROS 17 / 2 . 8 cells after 1 , 25 ( OH ) 2D3 treatment was observed by scanning electron microscopy .
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而胃癌细胞CEA除分布腔面微绒毛外,尚分布细胞侧面,基底面或整个胞膜,还见于胞浆内膜结构中。
But in gastric cancer , CEA was distributed on the lateral and basal surfaces or even over the entire surface of the cancer cells , besides on the apical microvilli surface . CEA was also found in intracellular membrane structure .
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Hanks液及BSS滴浴1.5~3小时,大部分角膜上皮细胞的微绒毛保持正常的细长指状,偶见上皮细胞的微绒毛皱缩变短或呈簇状。
Bathed with Hanks solution and BSS for 1.5 to 3 hours , the microvilli in most corneal epithelia remained normal slender finger shape . In a few corneal epithelia , the microvilli shortened or tufted .
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经50μg/mlLTA作用72h后细胞微绒毛消失,细胞质电子密度加深,出现大量脱落的凋亡小体。
After being treated with 50 μ g / ml LTA for 72 hours , microvillus disappear , electron density of cytoplasm is high and organells is not clear , large deciduous apoptosis bodies appear .
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第50天上皮细胞已具成年大鼠主细胞的超微结构,微绒毛发达,微吞饮内褶和多泡体丰富,Golgi复合体发达。
Golgi appartus developed , at 50 days , the epithelial cells have had the ultrastructure of the principal cell of adult rat , microvilli and Golgi apparatus were developed . Micro-invaginations and multivesicular bodies were abundant .
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结论毛细胞的微绒毛特点是HCL超微结构诊断的重要特征,胞核和胞质特点可用做HCL鉴别诊断的参考特征,核糖体板层复合体不一定是HCL的诊断特征。
Conclusion The features of microvilli of hairy cell are important characteristics of ultrastructural diagnosis of HLC . The features of nucleus and cytoplasm were reference characteristics of differential diagnosis of HCL . But R-LC was not certain for characteristics of diagnosis of HCL .
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扫描和透射电镜观察可见各实验组细胞表面微绒毛明显减少或消失、胞膜发泡、细胞固缩和核染色质浓缩边集,并出现凋亡小体,热疗+工SDN组的凋亡细胞数量更多。
With electron microscopy , great changes of cell apoptosis were observed , including microvilli disappearance or reduction , cell shrinkage , chromatin condensation or margination and the presence of " apoptosis bodies " .
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细胞膜微绒毛断裂,细胞破裂。结论甘肃猫儿眼不饱和脂肪酸对人BEL-7402细胞具有毒性作用,其机制可能与破坏细胞膜结构,抑制细胞分裂,损伤线粒体结构有关。
Conclusion The unsaturated fatty acid from mao er yan of gansu origin has significantly cytotoxic effects on BEL-7402 strain cells and their mechanisms may be related to inhibit cell division , destroy the structure of cell membrane and mitochondria .
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结果(1)热缺血2h组和胆总管吻合组均在吻合口附近发生明显的上皮细胞破损和微绒毛脱落(P<0.001),术后4周均可完全恢复;
Results ( 1 ) In group C and group B , the bile tract epithelia were all necrotic and the epithelial microvilli were all lost ( P < 0.001 , vs group A ), but it was all recovered in 4 weeks after operation ;
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Caco-2细胞来源于人结肠腺癌细胞,在培养条件下形成极性单细胞层,具有微绒毛以及紧密连接等类似于人体小肠上皮细胞刷状缘侧的分化特征。
Caco-2 cell came from human adenocarcinoma of colon cells and form polarity monolayer spontaneously in condition of cultivation , which have the differentiation characteristic of microvillus and tight junction which was similar to human small intestine epithelium striated border .