热敏灸对腹泻型肠易激综合征模型大鼠结肠BDNF和TrkB表达的影响

China Journal of Traditional Chinese Medicine and Pharmacy(2023)

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Abstract
目的:探究热敏灸对腹泻型肠易激综合征(IBS-D)模型大鼠结肠脑源性神经营养因子(BDNF)和酪氨酸激酶受体B(TrkB)表达的影响,以及热敏灸治疗IBS-D的可能机制.方法:将42只雄性SD大鼠随机分为空白组,造模组.模型组成功建立IBS-D大鼠模型后随机分为模型组、7,8-DHF组、ANA-12组、艾灸组,各组根据分组方式分别予以对应干预措施,干预周期14 d后,将艾灸组大鼠根据尾温变化分为热敏灸组(≥1℃)及非热敏灸组(<1℃).期间观察各组大鼠一般情况,HE染色观察结肠组织病理形态学变化,免疫组织化学法及免疫印迹法检测结肠BDNF和TrkB蛋白表达情况.结果:与模型组比较,热敏灸组可显著降低BDNF及TrkB蛋白表达(P<0.05,P<0.01).结论:热敏灸可有效改善IBS-D大鼠胃肠动力异常,可能是通过调节BDNF、TrkB蛋白表达产生作用.
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Key words
Diarrhea-predominant irritable bowel syndrome (IBS-D),Heat-sensitive moxibustion,Brain-derived neurotrophic factors (BDNF),Tyrosine kinase receptor B (TrkB),Intestinal motility
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