Effect of Hb conformational changes on oxygen transport physiology.

Ziyue Yin, Doudou Li, Qianwen Guo, Rong Wang, Wenbin Li
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Abstract

Red blood cells (RBCs) are the primary mediators of oxygen transport in the human body, and their function is mainly achieved through conformational changes of hemoglobin (Hb). Hb is a tetramer composed of four subunits, with HbA being the predominant Hb in healthy adults, existing in two forms: tense state (T state) and relaxed state (R state). Endogenous regulators of Hb conformation include 2,3-diphosphoglyceric acid, carbon dioxide, protons, and chloride ions, while exogenous regulators include inositol hexaphosphate, inositol tripyrophosphate, benzabate, urea derivative L35, and vanillin, each with different mechanisms of action. The application of Hb conformational regulators provides new insights into the study of hypoxia oxygen supply issues and the treatment of sickle cell disease.

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血红蛋白构象变化对氧气运输生理学的影响
红细胞(RBC)是人体氧气运输的主要媒介,其功能主要通过血红蛋白(Hb)的构象变化来实现。血红蛋白是一种由四个亚基组成的四聚体,健康成人的血红蛋白主要是 HbA,以两种形式存在:紧张状态(T 状态)和松弛状态(R 状态)。Hb 构象的内源性调节剂包括 2,3-二磷酸、二氧化碳、质子和氯离子,外源性调节剂包括六磷酸肌醇、三焦磷酸肌醇、苯甲酸盐、脲衍生物 L35 和香兰素,每种调节剂的作用机制各不相同。血红蛋白构象调节剂的应用为研究缺氧供氧问题和镰状细胞病的治疗提供了新的视角。
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来源期刊
中南大学学报(医学版)
中南大学学报(医学版) Medicine-Medicine (all)
CiteScore
1.00
自引率
0.00%
发文量
8237
期刊介绍: Journal of Central South University (Medical Sciences), founded in 1958, is a comprehensive academic journal of medicine and health sponsored by the Ministry of Education and Central South University. The journal has been included in many important databases and authoritative abstract journals at home and abroad, such as the American Medline, Pubmed and its Index Medicus (IM), the Netherlands Medical Abstracts (EM), the American Chemical Abstracts (CA), the WHO Western Pacific Region Medical Index (WPRIM), and the Chinese Science Citation Database (Core Database) (CSCD); it is a statistical source journal of Chinese scientific and technological papers, a Chinese core journal, and a "double-effect" journal of the Chinese Journal Matrix; it is the "2nd, 3rd, and 4th China University Excellent Science and Technology Journal", "2008 China Excellent Science and Technology Journal", "RCCSE China Authoritative Academic Journal (A+)" and Hunan Province's "Top Ten Science and Technology Journals". The purpose of the journal is to reflect the new achievements, new technologies, and new experiences in medical research, medical treatment, and teaching, report new medical trends at home and abroad, promote academic exchanges, improve academic standards, and promote scientific and technological progress.
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