Effect of soluble amyloid precursor protein α on nerve cell apoptosis and neurological function in subarachnoid hemorrhage rats
Chang Haigang
Hui Lei
Ma Pengju
Li Xiangsheng
Liu Ruihua
Jin Baozhe
Abstract：Objective To study the effect of soluble amyloid precursor protein α (sAPPα) on nerve cell apoptosis and neurological function in subarachnoid hemorrhage (SAH) rats.Methods Sixty male SD rats were randomly divided into control group (n=20),SAH+saline group (n=20) and SAH+sAPPα group (n=20).A SAH model was established by injecting autologous blood into cistern magna in rats.After a SAH model was established for SAH + saline group and SAH + sAPPα group by injecting saline and sAPPα respectively into the cistern magna of rats,the apoptotic cells were detected by immunofluorescene with TUNEL staining and the neurological function was scored in 10 rats from each group on day 3 after injection of sAPPα and saline.Results The number of apoptotic cells in brain tissue was significantly greater in SAH+saline group than in control group (P＜0.05) and was significantly smaller in SAH+sAPPα group than in SAH+ saline group (P＜0.05).The neurological function score was 26.7±0.5,13.9±0.7 and 23.0±0.8 respectively in control group,SAH + saline group and SAH + sAPPα group.Conclusion sAPPα alleviates secondary damage of neurological function by inhibiting the apoptosis of nerve cells in rats after SAH and can thus improve their neurological function.
Keywords：amyloid beta-protein precursorsubarachnoid hemorrhageneuronsapoptosisAlzheimer disease
Publication Date：2018-06-02
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 639-641 )