中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (45): 6795-6800.doi: 10.3969/j.issn.2095-4344.2016.45.016

• 干细胞移植 stem cell transplantation • 上一篇    下一篇

脐血干细胞移植干预妊娠期高血压模型大鼠的作用

崔雪梅,景笑笑   

  1. 郑州大学附属郑州中心医院妇产科,河南省郑州市  450007
  • 修回日期:2016-09-29 出版日期:2016-11-04 发布日期:2016-11-04
  • 通讯作者: 景笑笑,硕士,医师,郑州大学附属郑州中心医院妇产科,河南省郑州市 450007
  • 作者简介:崔雪梅,女,1974年生,河南省柘城县人,汉族,1999年河南医科大学毕业,副主任医师,主要从事妊娠特有疾病方面的研究。

Interventional effect of umbilical cord blood stem cell transplantation in rats with gestational hypertension

Cui Xue-mei, Jing Xiao-xiao   

  1. Department of Gynecology and Obstetrics, Zhengzhou Central Hospital of Zhengzhou University, Zhengzhou 450007, Henan Province, China
  • Revised:2016-09-29 Online:2016-11-04 Published:2016-11-04
  • Contact: Jing Xiao-xiao, Master, Physician, Department of Gynecology and Obstetrics, Zhengzhou Central Hospital of Zhengzhou University, Zhengzhou 450007, Henan Province, China
  • About author:Cui Xue-mei, Associate chief physician, Department of Gynecology and Obstetrics, Zhengzhou Central Hospital of Zhengzhou University, Zhengzhou 450007, Henan Province, China

摘要:

文章快速阅读:

文题释义:
内皮素:
是一种内源性长效血管收缩调节因子。内皮素还有强大的正性肌力作用,并且缩血管升血压效应可反射性引起心率抑制,造成心肌供血不足,还可诱发心肌细胞糖超载,心律失常以及心肌能量代谢障碍。目前大量研究表明严重心绞痛、心肌梗死、心肌缺血再灌注损伤、经皮腔内成形术的机体内皮素合成和释放明显增加,或血管对内皮素反应性亢进,都可能促进上述病理过程的发生发展,而应用内皮素抗体或内皮素阻断剂则可防治缺血性心脏病。
血管紧张素Ⅱ:是已知最强的缩血管活性物质之一。人体的血管平滑肌、肾上腺皮质球状带细胞以及脑的一些部位、心脏和肾脏器官的细胞上存在血管紧张素受体。血管紧张素Ⅱ与血管紧张素受体结合,引起相应的生理效应。血管紧张素作用于血管平滑肌,可使全身微动脉收缩,动脉血压升高。血管紧张素Ⅱ作用于外周血管,使静脉收缩,回心血量增加。

 

摘要
背景:
随着对间充质干细胞认识的不断加深,人们发现间充质干细胞在免疫调节和抗炎方面有突出的治疗效果。
目的:探讨脐血干细胞对内毒素诱导的妊娠期高血压模型大鼠的治疗作用。
方法:将24只妊娠SD大鼠随机分为3组:对照组、模型组及实验组,每组8只。模型组和实验组建立内毒素诱导的妊娠期高血压模型,造模同时实验组静脉注射脐血干细胞悬液1 mL,对照组和模型组静脉注射等量生理盐水。通过检测各组大鼠收缩压、尿蛋白浓度及白细胞数量,内皮相关因子AngⅡ及ET-1的表达,观察脐血干细胞治疗妊娠期高血压疾病模型的疗效。
结果与结论:①与对照组比较,模型组大鼠收缩压、尿蛋白及血清白细胞数量明显升高,差异有显著性意义(P < 0.05),并且随着内毒素作用时间的延长,模型组大鼠收缩压、尿蛋白和血清白细胞数量不断升高;②与模型组比较,实验组大鼠收缩压、尿蛋白和白细胞数量均明显降低,差异有显著性意义(P < 0.05);③与对照组比较,模型组内皮损伤因子AngⅡ和ET-1均有明显升高,与模型组相比,实验组大鼠内皮损伤因子AngⅡ和ET-1表达降低,差异有显著性意义(P < 0.05);④结果表明,脐血干细胞对妊娠期高血压模型大鼠有一定的治疗作用,可能是通过是调节内皮损伤相关因子的表达来实现的。

 

 

关键词: 干细胞, 移植, 脐血干细胞, 大鼠, 妊娠期高血压疾病, 血压, 尿蛋白, 白细胞, AngⅡ, ET-1

Abstract:

BACKGROUND: With the depth understanding of mesenchymal stem cells, mesenchymal stem cells are found to exert a prominent effect on immune regulation and anti-inflammation.
OBJECTIVE: To investigate the therapeutic effect of umbilical cord blood stem cell transplantation on endotoxin-induced hypertension in pregnant rats.
METHODS: Twenty-four pregnant Sprague-Dawley rats were randomized into three groups with eight rats in each group: control, model and experimental groups. Endotoxin-induced hypertension models were made in the model and experimental groups. Meanwhile, rats were given intravenous injection of umbilical cord blood stem cell suspension (1 mL) in the experimental groups and the same volume of normal saline in the control and model groups. Therapeutic effects of umbilical cord blood stem cell transplantation were observed through detection of systolic blood pressure, urine protein level, serum white blood cell quantity and Ang II and ET-1 expression.
RESULTS AND CONCLUSION: Compared with the control group, the systolic blood pressure, urine protein level and serum white blood cell quantity of rats were increased significantly in the model group, and over time, endotoxin continuously promoted these parameters in the model group. After cell transplantation, a significant reduction in systolic blood pressure, urine protein level and serum white blood cell quantity of rats was found in the experimental group compared with the model group (P < 0.05). After modeling, the expression levels of Ang II and ET-1 were decreased significantly, while these levels were increased significantly after cell transplantation (P < 0.05). These findings indicate that umbilical cord blood stem cell transplantation may have a certain therapeutic effect on gestational hypertension in rats, which may be realized by regulating the secretion of endothelial injury-related factors.

 

 

Key words: Cord Blood Stem Cell Transplantation, Hypertension, Pregnancy-Induced, Tissue Engineering

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