【摘要】 背景:将中医中药与干细胞移植学科相结合,开辟了传统中药学在干细胞移植学科应用方面的新道路,希望可以采用中药干预的方法来提高耳蜗干细胞的存活比率和分化为毛细胞的比例。目的:观察归芪地黄汤干预对耳蜗干细胞治疗感音性耳聋的影响。方法:将感音性耳聋豚鼠分成耳蜗干细胞移植+中药干预组,干细胞移植组和空白对照组,分别向内耳耳蜗移植含有药物血清的耳蜗干细胞悬液,耳蜗干细胞悬液和生理盐水。于移植后7,28,56 d 3个时间点进行ABR检测和免疫荧光观测实验。结果与结论:(1)在耳蜗干细胞移植+中药干预组和干细胞移植组观测到Nestin阳性细胞和MyosinⅦA阳性细胞,耳蜗干细胞移植+中药干预组的Nestin阳性细胞和MyosinⅦA阳性细胞数量要多于干细胞移植组;(2)耳蜗干细胞移植+中药干预组和干细胞移植组ABR检测数值都下调,耳蜗干细胞移植+中药干预组豚鼠的听力恢复优于干细胞移植组;(3)结果表明,归芪地黄汤干预可以显著提高耳蜗干细胞的存活率和分化为毛细胞的比例。更多还原

【Abstract】 BACKGROUND: Combining Chinese medicine with stem cell transplantation opens up a new avenue for the use of traditional Chinese medicine in the stem cell transplantation. It is expected to improve survival and differentiation of cochlear stem cells into hair cells through Chinese medicine interventions. OBJECTIVE: To observe the influence of Guiqi Dihuang Tang on the treatment of sensorineural deafness with cochlear stem cells. METHODS: Guinea pigs with sensorineural deafness were randomly assigned into three groups: combined group intervened with cochlear stem cell suspension with medicated serum, cell transplantation group with cochlear stem cell suspension, and blank control group with normal saline injection. At 7, 28 and 56 days after treatment, all guinea pigs were detected for auditory brainstem response and immunofluorescent observation. RESULTS AND CONCLUSION: Nestin positive cells and Myosin VIIA positive cells were observed in the combined and cell transplantation groups, and the number of positive cells was higher in the combined group than the cell transplantation group. Auditory brainstem response threshold of guinea pigs was decreased in the combined and cell transplantation groups, and the recovery of hearing was better in the former group. These findings indicate that the intervention of Guiqi Dihuang Tang can remarkably improve the survival rate of transplanted stem cells and the differentiation ratio of transplanted cells into hair cells.更多还原