大鼠機械性腦損傷動態(tài)變化的蛋白質(zhì)組學(xué)研究
[Abstract]:Aim: to establish an animal model of cultured nerve cells and traumatic brain injury (TBI) in vitro, to study the morphological changes of cultured neurons and the proteome expression in hippocampus of rats after injury, and to search for different biomarkers. Methods: SD rats within 24 hours were selected and cultured for 10-14 days. The rats were randomly divided into two groups: the control group and the control group. The Scott's nerve cells were induced by hydraulic shock for 24 hours and 48 hours after the injury. The morphology of nerve cells was observed. Adult male SD rats were randomly divided into two groups: the control group and the control group. The rats were divided into two groups at 4 h, 8 h, 12 h and 48 h after injury. The model of brain injury was induced by Marmarou's falling body. Two-dimensional gel electrophoresis was used to analyze the changes of proteome expression in hippocampus of rats after closed brain injury at different time points. Results: 1 Stability evaluation of the hydraulic shock injury device for cultured nerve cells in vitro: the hydraulic impact injury pressure was measured by recording the pressure in the chamber and in the plexiglass tube. There was a linear relationship between the pressure in the chamber and the pressure in the organic tube (YY 4.4763X 0.2986 Y for the pressure in the plexiglass tube and X for the pressure in the chamber), and the damage force of the cells was determined by the pressure of the chamber. The pressure of plexiglass tube and chamber increases with the increase of pendulum angle. The falling angles of pendulum for 0.1MPa, 0.2MPa and 0.3MPa were 13.5 擄, 21.5 擄and 27 擄respectively. The nerve cells were stained with toluidine blue, the nuclei of normal neurons were blue and the cytoplasm was light blue. In the injured group, the nerve cells in the injured group were mainly concentrated in the cell bodies, pyknosis of the nuclei, deep staining and dark blue. Most of them are necrotic injury cells.
【學(xué)位授予單位】:河北醫(yī)科大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2006
【分類號】:R363
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