工程疗法用于排毒血红蛋白,血红蛋白和铁
Ivan S Pires1, François Berthiaume2, Andre F Palmer1
1William G. Lowrie Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, Ohio, USA;
血液溶解释放出无细胞的血红蛋白 (Hb),血红素 (h) 和铁 (Fe),这些可以压倒自然防御. 新的生物仿真蛋白质策略正在开发中,以对抗这些溶血副产品的毒性影响.
科学领域:
- 生物医学工程 生物医学工程
- 生物化学 生物化学
- 毒理学 毒理学 毒理学
背景情况:
- 血液溶解,或红细胞溶解,释放无细胞的血红蛋白 (Hb),血红素 (h) 和铁 (Fe) 进入循环.
- 通常情况下,血蛋白会清除Hb/h/Fe的轻微增加,但病理状况可能会压倒这些系统.
- 累积的Hb/h/Fe会引起不良影响,包括血管收缩,高血压和氧化器官损伤.
研究的目的:
- 审查天然血清理器对Hb/h/Fe.的特性.
- 介绍新的生物模拟蛋白质结构,用于清理溶血副产品.
- 为了解决与累积的Hb/h/Fe.相关的毒性.
主要方法:
- 对血液溶解和血清除蛋白现有文献的综述.
- 描述开发新型生物模拟清理器的工程方法.
- 对Hb/h/Fe产生毒性的机制的分析.
主要成果:
- 天然的血蛋白,如哈普托格洛宾和血素是关键的清洁剂,但可以被压倒.
- 工程蛋白质结构在同时清理多种血溶性物种方面表现有前途.
- 这些新的方法旨在减轻自由Hb,血红素和铁的有害影响.
结论:
- 由于血液溶解而导致的自然清洁系统的过多导致Hb/h/Fe的有毒积累.
- 工程仿生蛋白提供了一个有前途的治疗策略来管理血液溶解诱导的毒性.
- 对于临床应用而言,对这些工程清理器的进一步开发至关重要.
更多相关视频
06:52Experimental Column Setup for Studying Anaerobic Biogeochemical Interactions Between Iron OxyHydroxides, Trace Elements, and Bacteria
Published on: December 19, 2017
05:23Continuous Manual Exchange Transfusion for Patients with Sickle Cell Disease: An Efficient Method to Avoid Iron Overload
Published on: March 14, 2017
相关概念视频
Enhanced Elimination of Poison
Antidotes serve a crucial role in counteracting the effects of poison by inhibiting enzymes responsible for producing harmful drug metabolites. In some cases, these toxic metabolites can be neutralized by endogenous cosubstrates, which are maintained at specific concentrations to prevent interaction with cellular macromolecules and subsequent cell death.
Renal excretion is the...
Antidotes
Specific antidotes operate by inhibiting the enzymes that control biochemical pathways, reducing the production of harmful metabolites.
An example of an antidote is atropine, which counteracts the detrimental effects of cholinesterase inhibitors. It achieves this by deactivating muscarinic receptors,...
Phase II Reactions: Glutathione Conjugation and Mercapturic Acid Formation
Several distinctive characteristics distinguish glutathione conjugation from other phase II...
Phase II Reactions: Miscellaneous Conjugation Reactions
A key example involves the conjugation of cyanide ions, which impair cellular respiration and alter hemoglobin into non-oxygen-carrying cyanmethemoglobin. To neutralize this threat, a sulfur atom from thiosulphate is transferred to the cyanide ion, catalyzed by the enzyme rhodanese, resulting in an inactive compound called thiocyanate. The production of...
Prevention of Further Absorption of Poison
The Periodic Table and Organismal Elements
