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peripheral filament
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  “peripheral filament”译为未确定词的双语例句
     Burn serum induced a striking reorganization of actin cytoskeleton with a weakening of fluorescent intensity of the peripheral filament bands and formation of the long and thick stress fibers, lamellipodia and filopodia.
     烧伤血清刺激后 ,肌动蛋白细胞骨架重组 ,出现应力纤维 ,同时周边肌动蛋白丝带模糊 ,内皮单层对白蛋白通透性增高。
短句来源
  相似匹配句对
     PERIPHERAL PSUDOANEURYSMS
     周围动脉假性动脉瘤
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     (2) peripheral;
     (2)周边强化型;
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     Boron filament and it's application
     硼纤维及其应用
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     What is the "Current Filament"?
     什么是“电流细丝”现象?
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  peripheral filament
Differences in basal, mid-epidermal and peripheral filament-containing cells have been characterised.
      


AIM: To investigate whether small GTPase RhoA's downstream effector Rho kinase mediates burn serum-induced endothelial hyperpermeability. METHODS: Primary cultured rat dermal microvascular endothelial cells (DMECs) were exposed to serum isolated from burned or sham burn rats for 6 hours and 8 hours, respectively, and did or didn't pretreated or post-treated with Y-27632 (30 μmol/L), a specific inhibitor of Rho kinase. ECs were then prepared for routine scanning electron microscopy observation, or stained with...

AIM: To investigate whether small GTPase RhoA's downstream effector Rho kinase mediates burn serum-induced endothelial hyperpermeability. METHODS: Primary cultured rat dermal microvascular endothelial cells (DMECs) were exposed to serum isolated from burned or sham burn rats for 6 hours and 8 hours, respectively, and did or didn't pretreated or post-treated with Y-27632 (30 μmol/L), a specific inhibitor of Rho kinase. ECs were then prepared for routine scanning electron microscopy observation, or stained with rhodamine-phalloidin for F-actin visualization. Permeability to FITC-albumin was evaluated using EC monolayers. RESULTS: Stimulation with 15% burn serum for 6 h changed the ultrastructure on cellular surface of DMECs with appearance of ripple marks instead of microvillus. The small protuberances at cellular lateral were shorten and the gaps were seen between adjacent cells. Post-treatment of Y-27632 reversed the changes of ultrastructure on the cellular surface. Burn serum induced a striking reorganization of actin cytoskeleton with a weakening of fluorescent intensity of the peripheral filament bands and formation of the long and thick stress fibers, lamellipodia and filopodia. The stress fibers were diminished by pretreatment or post-treatment of Y-27632. But lamellipodia and filopodia were not influenced by pretreatment or post-treatment of Y-27632. Pre-treatment of Y-27632 also attenuated significantly the increase in EC monolayer permeability stimulated by burn serum for 6 h. However, post-treatment of Y-27632 could not attenuated burn serum-induced endothelial hyperpermeability response although their Pa values were lower than simple burn serum group's. CONCLUSION: These findings indicate that Rho kinase is involved in the mediation of burn serum-induced endothelial actin cytoskeleton reorganization and early stage of barrier dysfunction. [

目的 :观察大鼠烧伤血清对内皮屏障功能的影响及Rho激酶特异抑制剂Y - 2 76 32的作用。方法 :原代培养的大鼠皮肤微血管内皮细胞按实验分组分别用大鼠对照血清、烧伤血清、Y - 2 76 32单独处理或联合处理。用扫描电镜观察细胞表面超微结构 ,罗丹明 -鬼笔毒环肽荧光染色观察肌动蛋白细胞骨架的改变。通过检测荧光标记白蛋白透过内皮单层的通量分析内皮单层通透性 ,以通透系数Pa表示。结果 :正常内皮细胞生长良好 ,表面有许多凹陷和微绒毛 ,细胞侧面的突起细而长 ,与相邻细胞侧面的小突起相互融合 ,紧密连接。烧伤血清刺激 6h ,细胞表面微绒毛被波浪状皱纹取代 ,细胞侧面突起变短 ,细胞间出现缝隙。正常内皮细胞F -actin主要分布在细胞周边 ,形成周边肌动蛋白丝带 ,在融合的内皮细胞单层 ,周边肌动蛋白丝带相互连接成网状。烧伤血清刺激后 ,肌动蛋白细胞骨架重组 ,出现应力纤维 ,同时周边肌动蛋白丝带模糊 ,内皮单层对白蛋白通透性增高。烧伤血清刺激 6h后 ,加Y - 2 76 32孵育 4 5min ,细胞表面微绒毛与波浪状皱纹并存 ,细胞侧面突起细长 ,与相邻细胞相互融合 ,连接紧密。周边肌动蛋白丝带...

目的 :观察大鼠烧伤血清对内皮屏障功能的影响及Rho激酶特异抑制剂Y - 2 76 32的作用。方法 :原代培养的大鼠皮肤微血管内皮细胞按实验分组分别用大鼠对照血清、烧伤血清、Y - 2 76 32单独处理或联合处理。用扫描电镜观察细胞表面超微结构 ,罗丹明 -鬼笔毒环肽荧光染色观察肌动蛋白细胞骨架的改变。通过检测荧光标记白蛋白透过内皮单层的通量分析内皮单层通透性 ,以通透系数Pa表示。结果 :正常内皮细胞生长良好 ,表面有许多凹陷和微绒毛 ,细胞侧面的突起细而长 ,与相邻细胞侧面的小突起相互融合 ,紧密连接。烧伤血清刺激 6h ,细胞表面微绒毛被波浪状皱纹取代 ,细胞侧面突起变短 ,细胞间出现缝隙。正常内皮细胞F -actin主要分布在细胞周边 ,形成周边肌动蛋白丝带 ,在融合的内皮细胞单层 ,周边肌动蛋白丝带相互连接成网状。烧伤血清刺激后 ,肌动蛋白细胞骨架重组 ,出现应力纤维 ,同时周边肌动蛋白丝带模糊 ,内皮单层对白蛋白通透性增高。烧伤血清刺激 6h后 ,加Y - 2 76 32孵育 4 5min ,细胞表面微绒毛与波浪状皱纹并存 ,细胞侧面突起细长 ,与相邻细胞相互融合 ,连接紧密。周边肌动蛋白丝带清晰 ,应力纤维消失。内皮单层Pa值虽较单纯烧伤组低 14 16 % ,但P >0 0 5。细胞用Y - 2 76 32预处理 1h后再用烧伤

Objective To investigate the changes in endothelial cytoskeletal reorganization and the role of Rho in the signal transduction pathway. Methods ECV304 cells were cultured and randomly divided into following groups: i. e. sham(with normal rat serum treatment), burn (with burn rat serum treatment), Y( with 30 μmol/L Rho kinase inhibitor Y-27632 treatment), burn plus Y (pretreatment of cells with burn serum before treated with 30 μmol/L Y-27632), Y plus burn (pretreatment of cells with Y-27632 for 1 hour before...

Objective To investigate the changes in endothelial cytoskeletal reorganization and the role of Rho in the signal transduction pathway. Methods ECV304 cells were cultured and randomly divided into following groups: i. e. sham(with normal rat serum treatment), burn (with burn rat serum treatment), Y( with 30 μmol/L Rho kinase inhibitor Y-27632 treatment), burn plus Y (pretreatment of cells with burn serum before treated with 30 μmol/L Y-27632), Y plus burn (pretreatment of cells with Y-27632 for 1 hour before treated with burn serum), LPA (with normal rat serum and 13 μmol/L LPA), and LPA plus Y (pretreatment of cells with LPA before treated with Y-27632) groups. The indices were examined at 6,7 and 8 posttreatment hours (PTH) in all groups except in Y group. The endothelial morphology was observed with HE staining. Endothelial cytoskeleton was observed by dual-fluorescence labeling of filamenta (F) with Rhodamind-phalloidin and monomer (G) with oregon green labeled DNAase. The actin content in the cells in all groups was measured with flow cytometry. Results In sham and control group, the cells were in fusiform or polygonal shape, with satisfactory growth; filamentous actin (F-actin) was mainly distributed in the peripheral site of the cytoplasm and formed peripheral filamental band. The cells became confluent to form a single layer with reticular structure. Globular actin (G-actin) was concentrated in the nucleus and perinucleus. In burn group, after 6 hours of burn serum treatment, the ability of cells to adhere to vessel wall was weakened, and a striking reorganization of the actin cytoskeleton and the formation of the stress fibers were found. Furthermore, the fluorescent intensity of the peripheral filament bands was weakened, and dispersed actin monomers were seen in the cytoplasm. This reaction was enhanced along with elapse of stimulation time. In burn plus Y or Y plus burn group, the cells grew and adhered well to the wall of culture vessel. The distribution of the filamentous actin was the same as the sham group, while the stress fiber decreased in amount obviously. The structure of globular actin was condensed with little G-actin in the cytoplasm. The changes in actin cytoskeleton in LPA group was similar to that in burn group. The effects of LPA on actin reorganization could also be reversed by Y-27632. The content of F-actin in burn group at 6 PTH (0.63±0.07) was lower than that in sham group(0.75±0.08), while the content of G-actin in burn group(1.28±0.27) was higher than that in sham group(1.16±0.16, P >0.05).Conclusion Burn serum induces vascular endothelial actin cytoskeleton reorganization in endothelial cells via the Rho-dependent signal pathway. Similar to the effect of LPA, this effect could be reversed by Y-27632.

目的 观察烧伤血清刺激下血管内皮细胞骨架的变化及Rho信号转导通路所起的作用。 方法 常规培养人脐静脉血管内皮细胞系ECV304,随机分为空白对照组、实验对照组、烧伤组、Y -27632组、烧伤+Y -27632组、Y- 27632+烧伤组、溶血磷脂酸(LPA)组和LPA+Y- 27632组,分别用正常大鼠血清、烧伤大鼠血清、30μmol/LRho激酶抑制剂Y -27632、13μmol/LRhoA激动剂LPA单独刺激或联合刺激。采用HE染色于光镜下观察各组内皮细胞形态。于荧光倒置相差显微镜下观察内皮细胞骨架变化,除Y -27632组外,各组均在刺激后6、7、8h3个时相点进行观察。用流式细胞仪检测实验对照组、烧伤组、Y -27632组、烧伤+Y- 27632组、LPA组和LPA+Y 27632组刺激6h的肌动蛋白含量。 结果 空白对照组、实验对照组细胞呈梭形或多边形,生长良好;丝状肌动蛋白主要分布在细胞周边,形成周边肌动蛋白丝带,细胞生长融合为单层后呈网状结构;球状肌动蛋白集中在细胞中央。烧伤组烧伤血清刺激6h,细胞贴壁差,丝状肌动蛋白重组,应力纤维形成,周边肌动蛋白丝带模糊;球状肌动蛋白松散,胞浆中可见散...

目的 观察烧伤血清刺激下血管内皮细胞骨架的变化及Rho信号转导通路所起的作用。 方法 常规培养人脐静脉血管内皮细胞系ECV304,随机分为空白对照组、实验对照组、烧伤组、Y -27632组、烧伤+Y -27632组、Y- 27632+烧伤组、溶血磷脂酸(LPA)组和LPA+Y- 27632组,分别用正常大鼠血清、烧伤大鼠血清、30μmol/LRho激酶抑制剂Y -27632、13μmol/LRhoA激动剂LPA单独刺激或联合刺激。采用HE染色于光镜下观察各组内皮细胞形态。于荧光倒置相差显微镜下观察内皮细胞骨架变化,除Y -27632组外,各组均在刺激后6、7、8h3个时相点进行观察。用流式细胞仪检测实验对照组、烧伤组、Y -27632组、烧伤+Y- 27632组、LPA组和LPA+Y 27632组刺激6h的肌动蛋白含量。 结果 空白对照组、实验对照组细胞呈梭形或多边形,生长良好;丝状肌动蛋白主要分布在细胞周边,形成周边肌动蛋白丝带,细胞生长融合为单层后呈网状结构;球状肌动蛋白集中在细胞中央。烧伤组烧伤血清刺激6h,细胞贴壁差,丝状肌动蛋白重组,应力纤维形成,周边肌动蛋白丝带模糊;球状肌动蛋白松散,胞浆中可见散在分布的絮状球状肌动蛋白,且这些反应随着刺激时间延长而增强。烧伤+Y- 27632组或Y -27632+烧伤组细胞生长、贴壁良好,丝状肌动蛋白的分布与空白对照组、实验对

 
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