基固定剂作为组织学保存的新方法:与甲基固定剂进行比较研究
Omar Younis Altaey1, Ali Ahmed Hasan1, Adnan Ali Hasso1
1Department of Anatomy, College of Veterinary Medicine, University of Mosul, Mosul, Iraq.
Open veterinary journal
|November 15, 2024
概括
一种新的以为基础的固定剂EZAT提供了优越的组织保存和比甲更快的固定. 这种无甲溶液提供了出色的组织学细节和最小的收缩,使其成为实验室的理想选择.
科学领域:
- 组织学和组织病理学.
- 生物材料科学 生物材料科学
- 实验室医学 实验室医学
背景情况:
- 形式素是一种常见的组织学固定剂,具有显著的缺点,包括致癌性,核酸保存不良和长时间的固定时间.
- 甲素的局限性需要开发更安全,更有效的组织固定方法.
研究的目的:
- 开发和评估一种新的,具有成本效益的,不含甲的基固定剂 (EZAT溶液).
- 评估EZAT溶液在透率,组织缩和组织质量方面的疗效,与传统的甲胺基固定剂相比.
主要方法:
- 鼠标组织样本 (肝脏,脏,大脑,小肠) 使用甲 (4%,10%,NBF) 和EZAT溶液进行固定.
- 在48小时内测量固定透深度和收缩比.
- 组织学部分由专家评估染色亲和力,细胞细节和整体组织结构.
主要成果:
- EZAT溶液的透率更高,在24小时内达到最佳固定,超过了基于甲的固定剂.
- 与10%的甲素和NBF相比,EZAT导致组织缩显著减少.
- 显微镜评估显示了优越的染色亲和力,精细的组织学细节,并加强了细胞形态与EZAT.
结论:
- EZAT固定剂为例行组织学和组织病理学提供了安全,高效和高质量的替代形式素.
- 建议进一步研究EZAT在组织化学和免疫组织化学中的实用性.
更多相关视频
09:50Use of Synaptic Zinc Histochemistry to Reveal Different Regions and Laminae in the Developing and Adult Brain
Published on: October 29, 2017
7.2K
07:42Improved Swiss-rolling Technique for Intestinal Tissue Preparation for Immunohistochemical and Immunofluorescent Analyses
Published on: July 13, 2016
68.6K
相关概念视频
Fixation and Sectioning
4.2K
Two basic types of preparation are used to visualize specimens with a light microscope: wet mounts and fixed specimens.
The simplest type of preparation is the wet mount, in which the specimen is placed in a drop of liquid on the slide. A liquid specimen can be directly deposited on the slide using a dropper. Solid specimens, such as skin scraping, can be placed on the slide before adding a drop of liquid to prepare the wet mount. Sometimes the liquid is simply water, but stains are often added...
The simplest type of preparation is the wet mount, in which the specimen is placed in a drop of liquid on the slide. A liquid specimen can be directly deposited on the slide using a dropper. Solid specimens, such as skin scraping, can be placed on the slide before adding a drop of liquid to prepare the wet mount. Sometimes the liquid is simply water, but stains are often added...
4.2K
Preparation of Samples for Electron Microscopy
5.4K
To be visualized by an electron microscope, either transmission or scanning, biological samples need to be fixed (stabilized) so the electron beam does not destroy them and dried thoroughly (desiccated/dehydrated) so the vacuum does not affect them. Fixation needs to be done as quickly as possible because the sample properties will start changing as soon as it is removed from its natural environment. For example, in a tissue sample, the oxygen levels begin decreasing, causing an altered...
5.4K
