电离辐射对大鼠下颌下腺旁细胞途径分泌的影响
Q257; 目的 探讨电离辐射引起的紧密连接(TJ)蛋白claudin-4的改变及其对大鼠下颌下腺旁细胞分泌功能的影响.方法 将24只Wistar大鼠随机分为对照组和照射组,照射组又分为照射后1、4、12周组,照射组一次性给予20 Gy射线局部照射实验侧下颌下腺区.照射后1、4及12周,用Schirmer实验检测分泌量;苏木精-伊红(HE)染色观察腺体组织病理变化;透射电镜观察TJ超微结构;免疫荧光染色和蛋白质印迹(Western blot)检测毒蕈碱型乙酰胆碱受体(M受体)亚型M3、水通道蛋白5(AQP5)及claudin-4的蛋白表达.结果 电离辐射后1、4、12周,腺体分泌量逐渐降低(P...
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          | Published in | 华西口腔医学杂志 Vol. 39; no. 3; pp. 267 - 273 | 
|---|---|
| Main Authors | , , , , , , | 
| Format | Journal Article | 
| Language | Chinese | 
| Published | 
            新疆医科大学,乌鲁木齐830054%新疆维吾尔自治区人民医院口腔颌面外科,乌鲁木齐830001%山东大学齐鲁医院口腔颌面外科,济南250012
    
        01.06.2021
     山东大学口腔医学研究所,济南250012  | 
| Subjects | |
| Online Access | Get full text | 
| ISSN | 1000-1182 | 
| DOI | 10.7518/hxkq.2021.03.004 | 
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| Abstract | Q257; 目的 探讨电离辐射引起的紧密连接(TJ)蛋白claudin-4的改变及其对大鼠下颌下腺旁细胞分泌功能的影响.方法 将24只Wistar大鼠随机分为对照组和照射组,照射组又分为照射后1、4、12周组,照射组一次性给予20 Gy射线局部照射实验侧下颌下腺区.照射后1、4及12周,用Schirmer实验检测分泌量;苏木精-伊红(HE)染色观察腺体组织病理变化;透射电镜观察TJ超微结构;免疫荧光染色和蛋白质印迹(Western blot)检测毒蕈碱型乙酰胆碱受体(M受体)亚型M3、水通道蛋白5(AQP5)及claudin-4的蛋白表达.结果 电离辐射后1、4、12周,腺体分泌量逐渐降低(P<0.01);1周时腺体组织以间质水肿为主,随时间进行出现核固缩,腺泡细胞数目减少,小灶性腺体坏死伴炎症浸润,12周时最明显;照射组腺体不同时期TJ超微结构表现为模糊、崩塌、电子密度降低,TJ宽度显著减少(P<0.01);M3及AQP5表达随时间依赖性下调,荧光强度在照射后明显减弱,而claudin-4表达及荧光强度则表现为不同程度增强.结论 下颌下腺照射后TJ结构改变,claudin-4表达上调,旁细胞水分泌途径损伤参与了下颌下腺电离辐射后分泌低下. | 
    
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| AbstractList | Q257; 目的 探讨电离辐射引起的紧密连接(TJ)蛋白claudin-4的改变及其对大鼠下颌下腺旁细胞分泌功能的影响.方法 将24只Wistar大鼠随机分为对照组和照射组,照射组又分为照射后1、4、12周组,照射组一次性给予20 Gy射线局部照射实验侧下颌下腺区.照射后1、4及12周,用Schirmer实验检测分泌量;苏木精-伊红(HE)染色观察腺体组织病理变化;透射电镜观察TJ超微结构;免疫荧光染色和蛋白质印迹(Western blot)检测毒蕈碱型乙酰胆碱受体(M受体)亚型M3、水通道蛋白5(AQP5)及claudin-4的蛋白表达.结果 电离辐射后1、4、12周,腺体分泌量逐渐降低(P<0.01);1周时腺体组织以间质水肿为主,随时间进行出现核固缩,腺泡细胞数目减少,小灶性腺体坏死伴炎症浸润,12周时最明显;照射组腺体不同时期TJ超微结构表现为模糊、崩塌、电子密度降低,TJ宽度显著减少(P<0.01);M3及AQP5表达随时间依赖性下调,荧光强度在照射后明显减弱,而claudin-4表达及荧光强度则表现为不同程度增强.结论 下颌下腺照射后TJ结构改变,claudin-4表达上调,旁细胞水分泌途径损伤参与了下颌下腺电离辐射后分泌低下. | 
    
| Author | 吴言辉 许辉 路利丹 姚清婷 石亮 刘少华 艾皮孜古丽·亚库普  | 
    
| AuthorAffiliation | 新疆医科大学,乌鲁木齐830054%新疆维吾尔自治区人民医院口腔颌面外科,乌鲁木齐830001%山东大学齐鲁医院口腔颌面外科,济南250012;山东大学口腔医学研究所,济南250012 | 
    
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| Author_FL | Lu Lidan Liu Shaohua Shi Liang Xu Hui Wu Yanhui Yao Qingting YAKUPU Aipiziguli  | 
    
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| Keywords | 下颌下腺 电离辐射 紧密连接 claudin-4 旁细胞途径  | 
    
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| Publisher | 新疆医科大学,乌鲁木齐830054%新疆维吾尔自治区人民医院口腔颌面外科,乌鲁木齐830001%山东大学齐鲁医院口腔颌面外科,济南250012 山东大学口腔医学研究所,济南250012  | 
    
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| Title | 电离辐射对大鼠下颌下腺旁细胞途径分泌的影响 | 
    
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