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- 2017
EPO对唾液腺放射性损伤防护作用的研究
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Abstract:
摘要 目的:通过研究促红细胞生成素(Erythropoietin,EPO)对大鼠下颌下腺放射性损伤的防护作用,为临床进一步探索唾液腺放射性损伤的预防和保护提供实验基础。 方法:将30只Wistar大鼠平均分为3组,即对照组(模拟照射+注射盐水)、单放组(照射+注射盐水)、给药组(照射+注射药物)。大鼠头颈部一次性接受15 Gy大剂量放射线照射,给药组放射前30 min腹腔注射EPO,照射后隔日给药,持续2周,药物剂量为每次3000 IU/kg。放射后第90天测量大鼠唾液流率,测量完毕后取大鼠颌下腺制作石蜡切片,行HE染色、Masson染色,并通过免疫组织化学染色观察切片PCNA表达情况。结果:给药组大鼠唾液流率大于单放组,组织学观察给药组腺体损伤程度较单放组明显减轻,每高倍视野(×400)给药组PCNA阳性细胞数多于单放组。结论:EPO对唾液腺放射性损伤有较好的防护作用
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