CHOP在间歇低氧大鼠认知功能减退中的表达及意义
目的探讨C/EBP同源蛋白（CHOP）在间歇性低氧大鼠认知功能减退中的表达变化及其意义。方法将75只雄性Wistar大鼠随机分为正常组（NC组）、5%间歇低氧组（5%CIH组）、10%间歇低氧组（10%CIH组）,每组25只;每组又各分为3、7、14、21、28d时间亚组,每个时间亚组5只。正常组暴露于空气中,间歇低氧组分别暴露于间歇性低氧条件下（暴露时间每天8h,持续时间3、7、14、21、28d）。采用Morris水迷宫检测大鼠学习记忆功能,免疫组化检测海马CA1区CHOP表达,TUNEL法检测海马CA1区神经细胞凋亡。结果 1与NC组比较,2个CIH组动物逃避潜伏期随低氧时间的延长而延长...
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| Published in | 西安交通大学学报（医学版） Vol. 36; no. 3; pp. 332 - 336 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
河北联合大学 附属医院呼吸内科，河北唐山 063000
2015
河北联合大学 呼吸病研究所，河北唐山 063000%河北联合大学 附属医院呼吸内科,河北唐山,063000%河北联合大学 康复医学院社区护理学，河北唐山 063000 河北联合大学 呼吸病研究所，河北唐山 063000 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1671-8259 |
| DOI | 10.7652/jdyxb201503009 |
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| Abstract | 目的探讨C/EBP同源蛋白（CHOP）在间歇性低氧大鼠认知功能减退中的表达变化及其意义。方法将75只雄性Wistar大鼠随机分为正常组（NC组）、5%间歇低氧组（5%CIH组）、10%间歇低氧组（10%CIH组）,每组25只;每组又各分为3、7、14、21、28d时间亚组,每个时间亚组5只。正常组暴露于空气中,间歇低氧组分别暴露于间歇性低氧条件下（暴露时间每天8h,持续时间3、7、14、21、28d）。采用Morris水迷宫检测大鼠学习记忆功能,免疫组化检测海马CA1区CHOP表达,TUNEL法检测海马CA1区神经细胞凋亡。结果 1与NC组比较,2个CIH组动物逃避潜伏期随低氧时间的延长而延长（P〈0.05）,跨越目标象限的时间随低氧时间的延长而缩短（P〈0.05）,海马神经元凋亡指数随缺氧时间的延长均逐渐升高（P〈0.05）;与10%CIH组比较,5%CIH组上述变化有统计学意义（P〈0.05）。2与NC组比较,2个CIH组CHOP蛋白的表达随缺氧时间的延长于各个时间点均增加（P〈0.05）,其中10%CIH组于28d达峰,5%CIH组于21d达峰后下降。3双变量相关分析显示,2个CIH组其CHOP表达与凋亡指数、动物逃避潜伏期时间均呈正相关,与跨越目标象限时间均呈负相关。结论间歇性低氧可以引起不同程度的认知功能减退,可能与其诱导CHOP高表达并激活CHOP介导的神经细胞凋亡密切相关。 |
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| AbstractList | 目的探讨C/EBP同源蛋白（CHOP）在间歇性低氧大鼠认知功能减退中的表达变化及其意义。方法将75只雄性Wistar大鼠随机分为正常组（NC组）、5%间歇低氧组（5%CIH组）、10%间歇低氧组（10%CIH组）,每组25只;每组又各分为3、7、14、21、28d时间亚组,每个时间亚组5只。正常组暴露于空气中,间歇低氧组分别暴露于间歇性低氧条件下（暴露时间每天8h,持续时间3、7、14、21、28d）。采用Morris水迷宫检测大鼠学习记忆功能,免疫组化检测海马CA1区CHOP表达,TUNEL法检测海马CA1区神经细胞凋亡。结果 1与NC组比较,2个CIH组动物逃避潜伏期随低氧时间的延长而延长（P〈0.05）,跨越目标象限的时间随低氧时间的延长而缩短（P〈0.05）,海马神经元凋亡指数随缺氧时间的延长均逐渐升高（P〈0.05）;与10%CIH组比较,5%CIH组上述变化有统计学意义（P〈0.05）。2与NC组比较,2个CIH组CHOP蛋白的表达随缺氧时间的延长于各个时间点均增加（P〈0.05）,其中10%CIH组于28d达峰,5%CIH组于21d达峰后下降。3双变量相关分析显示,2个CIH组其CHOP表达与凋亡指数、动物逃避潜伏期时间均呈正相关,与跨越目标象限时间均呈负相关。结论间歇性低氧可以引起不同程度的认知功能减退,可能与其诱导CHOP高表达并激活CHOP介导的神经细胞凋亡密切相关。 R563.8; 目的：探讨 C/EBP 同源蛋白(CHOP)在间歇性低氧大鼠认知功能减退中的表达变化及其意义。方法将75只雄性 Wistar 大鼠随机分为正常组(NC 组)、5%间歇低氧组(5% CIH 组)、10%间歇低氧组(10% CIH 组),每组25只；每组又各分为3、7、14、21、28 d 时间亚组,每个时间亚组5只。正常组暴露于空气中,间歇低氧组分别暴露于间歇性低氧条件下(暴露时间每天8 h,持续时间3、7、14、21、28 d)。采用 Morris 水迷宫检测大鼠学习记忆功能,免疫组化检测海马 CA1区 CHOP 表达,TUNEL 法检测海马 CA1区神经细胞凋亡。结果①与 NC 组比较,2个 CIH 组动物逃避潜伏期随低氧时间的延长而延长(P <0.05),跨越目标象限的时间随低氧时间的延长而缩短(P <0.05),海马神经元凋亡指数随缺氧时间的延长均逐渐升高(P <0.05)；与10% CIH 组比较,5% CIH 组上述变化有统计学意义(P <0.05)。②与 NC 组比较,2个 CIH 组 CHOP 蛋白的表达随缺氧时间的延长于各个时间点均增加(P <0.05),其中10% CIH 组于28 d 达峰,5% CIH 组于21 d 达峰后下降。③双变量相关分析显示,2个 CIH 组其 CHOP 表达与凋亡指数、动物逃避潜伏期时间均呈正相关,与跨越目标象限时间均呈负相关。结论间歇性低氧可以引起不同程度的认知功能减退,可能与其诱导 CHOP 高表达并激活 CHOP 介导的神经细胞凋亡密切相关。 |
| Abstract_FL | Objective To explore the expression changes of C/EBP homologous binding protein (CHOP)in intermittent hypoxic rats with cognitive function decline and clinical significance.Methods We randomly divided 75 adult male Wistar rats into normal group (NC group),5% intermittent hypoxia group (5% CIH group)and 10%intermittent hypoxia group (10% CIH group),with 25 rats in each.Then the three groups were further divided into 3 d,7 d,14 d,21 d and 28 d subgroups,and each time a subgroup had 5 rats.The control group was exposed to the air while 10% CIH group and 5% CIH group were exposed to CIH for eight hours from 8:00 to 1 6:00 each day. After exposure for 3 d,7 d,14 d,21 d and 28 d,the cognitive function of rats was assessed with Morris water maze, the expression of CHOP in the hippocampus was assayed qualitatively by immunohistochemical technique,and the apoptosis of neurons was detected by TUNEL method.Results ① With prolonged hypoxia,the time of escape latency obviously prolonged,the time spent crossing the target quadrant shortened (P < 0.05 ),and the apoptosis index of hippocampal neurons in the CIH groups was increased gradually compared with those in control group (P <0.05).The above-mentioned indexes changed more significantly in 5% CIH group than in 10% CIH group (P <0.05).②.The expression of CHOP protein at each time point was increased (P <0.05 ).In 10% CIH group it reached the peak at 28 d while in 5% CIH group it decreased after it peaked at 21 d.③ The expression of CHOP in the two CIH groups was positively correlated with apoptosis index and animal escape latency time,but negatively correlated with the target quadrant time.Conclusion Intermittent hypoxia,which is likely to induce the high expression of CHOP and activation of neural CHOP mediated apoptosis,causes cognitive impairment of various degrees. |
| Author | 王红阳 段丽君 赵雅宁 韩广超 张敏 王亚囡 王玲 曹进丽 |
| AuthorAffiliation | 河北联合大学附属医院呼吸内科,河北唐山063000 河北联合大学康复医学院社区护理学,河北唐山063000 河北联合大学呼吸病研究所,河北唐山063000 |
| AuthorAffiliation_xml | – name: 河北联合大学 附属医院呼吸内科，河北唐山 063000; 河北联合大学 呼吸病研究所，河北唐山 063000%河北联合大学 附属医院呼吸内科,河北唐山,063000%河北联合大学 康复医学院社区护理学，河北唐山 063000; 河北联合大学 呼吸病研究所，河北唐山 063000 |
| Author_FL | WANG Ling HAN Guang-chao WANG Hong-yang ZHANG Min CAO Jin-li DUAN Li-jun ZHAO Ya-ning WANG Ya-nan |
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| Author_xml | – sequence: 1 fullname: 王红阳 段丽君 赵雅宁 韩广超 张敏 王亚囡 王玲 曹进丽 |
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| ClassificationCodes | R563.8 |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DOI | 10.7652/jdyxb201503009 |
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| Keywords | 细胞凋亡 obstructive sleep apnea-hypopnea syndrome Morris 水迷宫 Morris water maze apoptosis C/EBP homologous binding protein (CHOP) intermittent hypoxia 阻塞性睡眠呼吸暂停低通气综合征 间歇性低氧 C/EBP 同源蛋白 |
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| Notes | WANG Hong-yang, DUAN Li-jun, ZHAO Ya-ning, HAN Guang-chao, ZHANG Min, WANG Ya-nan, WANG Ling, CAO Jin-li （Hebei United University. 1. Department of Respiratory Medicine of Affiliated Hospital~ 2. Community Nursing of Rehabilitation Medicine School~ 3. Institute of Respiratory Disease, Tangshan 063000, China） obstructive sleep apnea-hypopnea syndrome; intermittent hypoxia; apoptosis; C/EBP homologous binding protein （CHOP） ; Morris water maze Objective To explore the expression changes of C/EBP homologous binding protein （CHOP）in intermittent hypoxic rats with cognitive function decline and clinical significance.Methods We randomly divided 75 adult male Wistar rats into normal group （NC group）,5% intermittent hypoxia group （5% CIH group）and 10%intermittent hypoxia group （10% CIH group）,with 25 rats in each.Then the three groups were further divided into 3 d,7 d,14 d,21 d and 28 d subgroups,and each time a subgroup had 5 rats.The control group was exposed to the air while 10% CIH group and 5% CIH group were expos |
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| PublicationTitle | 西安交通大学学报（医学版） |
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| PublicationYear | 2015 |
| Publisher | 河北联合大学 附属医院呼吸内科，河北唐山 063000 河北联合大学 呼吸病研究所，河北唐山 063000%河北联合大学 附属医院呼吸内科,河北唐山,063000%河北联合大学 康复医学院社区护理学，河北唐山 063000 河北联合大学 呼吸病研究所，河北唐山 063000 |
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| Snippet | 目的探讨C/EBP同源蛋白（CHOP）在间歇性低氧大鼠认知功能减退中的表达变化及其意义。方法将75只雄性Wistar大鼠随机分为正常组（NC组）、5%间歇低氧组（5%CIH组）、10%间歇低... R563.8; 目的：探讨 C/EBP 同源蛋白(CHOP)在间歇性低氧大鼠认知功能减退中的表达变化及其意义。方法将75只雄性 Wistar 大鼠随机分为正常组(NC 组)、5%间歇低氧组(5% CIH ... |
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| SubjectTerms | C/EBP同源蛋白 Morris水迷宫 细胞凋亡 间歇性低氧 阻塞性睡眠呼吸暂停低通气综合征 |
| Title | CHOP在间歇低氧大鼠认知功能减退中的表达及意义 |
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