跳至主要内容

LDL receptor-deficient rabbit

LDL 受体缺失兔在普通或高胆固醇饲料下出现高胆固醇血症和主动脉粥样硬化病变,可用于研究 LDL 清除障碍驱动的病变。

结局指标

获得可用于兔主动脉斑块组织学分级和组成的 HE 染色切片。

实验动物

动脉组织石蜡切片 H&E 染色
年龄
not reported in the cited source
组织
aortic root; thoracic aorta

实验步骤

H&E staining **Dewaxing:** Paraffin sections are placed in xylene for 3 x 00:03:00 H&E staining **Rehydration: ** Paraffin sections are placed in - 100% EtOH for 3 x 00:03:00 - 95% EtOH for 1 x 00:03:00 - Rinse with water H&E staining **Hematoxylin staining: ** Paraffin sections are stained with hematoxylin for 00:00:20 and rinse under running water for 00:01:00 H&E staining **Differentiation and bluing:** Paraffin sections are placed into the bluing reagent for 00:01:00 and rinse under running water for 00:01:00 _This step results in a blue coloration of the nuclei._ H&E staining **Eosin staining:** Parrafin sections are counterstained with Eosin for 00:00:10 _This step results in a pink coloration of the cytoplasmic components and connective tissue fibers._ H&E staining **Dehydration and Clearing:** Paraffin sections are placed in - 95% EtOH for 00:02:00 - 100% EtOH for 2 x 00:02:00 - Xylene for 2 x 00:02:00 H&E staining **Mounting:** Parrafin sections are mounted with a glass coverslip using Permount.

模型身份

模型名称
LDL receptor-deficient rabbit
物种
rabbit
基因型/合子状态
Ldlr -/-
等位基因
Ldlr

生物学特性

表型出现阶段
高胆固醇饲料下病变明显;普通饲料下进展取决于遗传背景和年龄。
适用研究问题
LDL 受体缺失兔的脂蛋白代谢和主动脉病变;基因编辑兔用于动脉粥样硬化研究的适用性。
模型局限
基因编辑兔的品系和突变细节需按具体来源核对;兔模型成本高、繁殖周期长;病变仍不能完全复制人类斑块破裂和血栓事件。

实验方法

实验方案

配套试剂与材料

参考文献

  1. Fan J, et al. Rabbit models for the study of human atherosclerosis: from pathophysiological mechanisms to translational medicine. Pharmacology & Therapeutics. 2015;146:104-119. DOI:10.1016/j.pharmthera.2014.09.009; PMID:25277507.
  2. protocols.io · vv1 · Nathalia L. Oliveira; samantha.gruenheid · This is an open access protocol distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
  3. ARRIVE 2.0 官方规范