首页> 外文期刊>Journal of vascular research >Spontaneous elastic tissue lesions in the rat abdominal aorta, a genetically determined phenotype.
【24h】

Spontaneous elastic tissue lesions in the rat abdominal aorta, a genetically determined phenotype.

机译:大鼠腹主动脉中的自发性弹性组织损伤,这是基因决定的表型。

获取原文
获取原文并翻译 | 示例
           

摘要

In this study, phenotypic expression of spontaneous elastic laminae defects within the rat abdominal aorta was examined. Lesions in Brown Norway (BN) rats were compared with those of New Zealand genetically hypertensive (GH) rats. BN and GH rats were cross-bred to determine the phenotypic expression of these lesions in successive F(1) and F(2) generations. Lesions were assessed by distribution, number and a semiquantitative index of severity. All BN aortae contained numerous elastic tissue defects. In comparison, GH aortae contained only occasional elastic tissue lesions. F(1) aortae contained lesions in numbers similar to those of the parental BN strain; however, F(1) lesions were of significantly greater severity. Within the F(2) generation, a wide range in both lesion numbers and severity indices was observed, with approximately a quarter of animals having lesion numbers analogous to the GH parental strain. In conclusion, this study indicates that the spontaneous elastic tissue lesions observed within BN rats are consistent with an autosomal dominant, possibly single gene, effect. Moreover, epistatic effects, derived from the GH strain, may influence the severity of these lesions. The gene(s) responsible may be important in the development of conditions such as arteriosclerosis and aneurysms in humans. Copyright 2000 S. Karger AG, Basel.
机译:在这项研究中,检查了大鼠腹主动脉内自发性弹性薄片缺损的表型表达。将布朗挪威(BN)大鼠的病变与新西兰遗传性高血压(GH)大鼠的病变进行了比较。 BN和GH大鼠杂交以确定连续F(1)和F(2)世代中这些病变的表型表达。通过分布,数量和严重程度的半定量指标评估病变。所有的BN主动脉都包含许多弹性组织缺陷。相比之下,GH主动脉仅包含偶发的弹性组织病变。 F(1)主动脉包含的损伤数量与亲本BN菌株相似;但是,F(1)病变的严重程度明显更高。在F(2)代内,观察到病变数和严重性指数均较宽,大约四分之一的动物具有与GH亲本株相似的病变数。总之,这项研究表明,在BN大鼠体内观察到的自发性弹性组织损伤与常染色体显性,可能是单个基因的效应一致。而且,源自GH菌株的上位性作用可能影响这些病变的严重性。负责任的基因可能在人类动脉硬化和动脉瘤等疾病的发展中发挥重要作用。版权所有2000 S. Karger AG,巴塞尔。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号