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    题名 作者 年代 出处 被引量
1Mechanical microenvironments as key cellular regulator in the liver显示文摘Tissue stiffness, shear stress, and interstitial pressure make up major factors of liver mechanical microenvironment, which play the key regulatory role to control cell behaviors in the liver and progress of liver diseases. In this review, we focus on the characteristics of liver mechanical microenvironments and summarize cellular responses to mechanobiological changes during liver pathogenesis, especially in hepatic fibrosis and cirrhosis. A better understanding of the indispensable contributions of mechanical cues to liver homeostasis and pathogenesis is significant to identify new therapeutic targets for liver diseases such as hepatic fibrosis or cirrhosis.Zhifeng You Lyu Zhou Wenjing Li Chenyu Huang Yanan Du 2019Acta Mechanica Sinica2019,35,2:3
2脂肪肝对小鼠肝血窦内血流状况的影响显示文摘目的由于脂肪肝状态下肝细胞的体积变化可能导致肝内血液流动特征改变,本研究拟通过观测肝内的形态学、血流速度和迂曲度的变化,为脂肪肝的诊治提供帮助。方法小鼠背部皮下注射四氯化碳或橄榄油溶液建立脂肪肝模型,取小鼠肝组织进行HE与油红O染色;采用激光多普勒仪测量肝左叶浅表血管内的血流速度;小鼠尾静脉注射德克萨斯红荧光染料,双光子荧光显微镜下观察及测量小鼠肝血窦内红细胞的流动速度及血管内径状况,并进行肝血窦迂曲度检测。结果给予小鼠四氯化碳注射2周(n=16)和4周(n=16)后,油红O染色可见肝细胞内出现不同程度的红色脂滴沉积,且主要集中在中央静脉周围,肝血窦存在明显的变形和缩窄,且4周组更加明显。随着模型制作时间的延长,肝左叶的的浅表区域和肝血窦内的血流速度逐渐降低,且肝血窦的内径变小,迂曲度增加。结论脂肪肝状态下,肝血窦内径减小,血窦内血流速度下降,迂曲度增加,为脂肪肝早期诊断和治疗提供了可视化的形态学实验依据。陈重九 樊婧 王宇辰 全葳 王建伟 李石良 张卫光 2019解剖学报2019,50,5:1
3Mechanotransduction of liver sinusoidal endothelial cells under varied mechanical stimuli显示文摘Liver sinusoidal endothelial cells(LSECs)are the gatekeeper of liver to maintain hepatic homeostasis.They are formed into the highly specialized endothelium between vascular lumen and the space of Disse and are mechanosensitive to respond varied microenvironments.Shear stress and mechanical stretch induced by blood perfusion and substrate stiffness enhancement derived from deposition of extracellular matrix(ECM)are major mechanical stimuli that surround LSECs.This review introduces how LSECs respond to the external forces in both physiological and pathological cases and what is the interplay of LSECs with other hepatic cells.Molecular mechanisms that potentiate LSECs mechanotransduction are also discussed.Xinyu Shu Ning Li Yi Wu Wang Li Xiaoyu Zhang Peiwen Li Dongyuan Lu Shouqin Lu Mian Long 2021Acta Mechanica Sinica2021,37,2:0
4肝窦内纳米粒子特性及其清除率的数值模拟显示文摘肝脏对纳米粒子的非特异性清除严重阻碍了纳米药物的临床转化。由于实验手段的限制,通过数学模型探究纳米粒子在肝窦内的运动特性对其肝脏清除的影响,具有重要应用价值。本研究利用基于有限元法(FEM)的欧拉-拉格朗日方法模拟了纳米粒子在仿生小鼠肝窦中的运动。结果表明,颗粒尺寸和肝窦的弯曲程度能够通过改变纳米粒子与窦内细胞的碰撞频率而影响其肝脏清除率;而颗粒密度对粒子运动特性及其肝脏清除率无显著影响。本研究从纳米粒子的运动特性角度出发,为面对肝脏清除的纳米载体的设计提供了理论指导,进而推进其临床转化进程。张家锐 葛丹 刘洋 马学虎 孙冰冰 2023高校化学工程学报2023,37,3:0
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