外源性EGF對中年大鼠運動活性及紋狀體多巴胺含量的影響
[Abstract]:Aim: to investigate the effects of epidermal growth factor (EGF) on motor activity and dopamine content in striatum of middle-aged rats. Methods: healthy 18-month-old rats were given different doses of EGF (0.010.05U 0.150.30 mg/ml). The changes of exercise behavior and dopamine content were detected by open-field experiment and HPLC / tandem mass spectrometry respectively. The changes of dopamine content in rats were analyzed by HPLC and tandem mass spectrometry (LC-MS). Results: compared with the control group, there was no change in the behavioral parameters in the open field test of the rats in the low dose EGF group (0. 01 鹵0. 05 mg/ml), while in the middle dose EGF group (0. 1 0. 15 mg/ml), the sniffing behavior, exploratory behavior, contact behavior, motor behavior and hairdressing behavior of the rats in the middle dose EGF group (0. 1 0. 15 mg/ml) were improved. The behavioral parameters of large dose EGF (0. 3 mg/m1) group were decreased in open field experiment. Compared with the control group, the contents of dopamine and its metabolites DOPAC and HVA in striatum began to increase in the low dose EGF (0. 01 mg/rnl) group, reached the peak in the middle dose EGF (0. 1 mg/ml) group, and decreased in the high dose EGF (0. 3 mg/ml) group. Conclusion: EGF has an effect on motor activity and dopamine content in striatum of middle-aged rats.
【作者單位】: 河北醫(yī)科大學(xué)解剖教研室;南陽市第二人民醫(yī)院影像科;
【基金】:河北省衛(wèi)生廳青年科技基金(20090310)
【分類號】:R339.38
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