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Title: Effect of iron loading on isolated rat myocardium
Other Title: 铁负荷对离体大鼠心脏和分离心室肌细胞的作用
Authors: Chen, YY
Cao, CM
Xu, MH
Shen, YL
Qian, ZM
Xia, Q
Issue Date: 2002
Source: 中国病理生理杂志 (Chinese journal of pathophysiology), 2002, v. 18, no. 8, p. 985-987
Abstract: 目的: 研究水溶性Fe3+ 和透膜的脂溶性Fe3+ 复合物对心肌功能和心肌脂质过氧化水平的影响。
方法: 采用离体灌流心脏和酶解分离心室肌细胞模型 ,检测心肌力学指标、乳酸脱氢酶 (LDH)、肌酸激酶 (CK)、丙二醛(MDA)及冠脉流量等指标。
结果: FeCl3缩短舒张期心室肌细胞长度 ,5、1 5μmol/LFeCl3增加细胞收缩幅度和速度 ;FeCl3使灌流心脏LVDP、±dp/dtmax、心率、冠脉流量增大 ,对心肌LDH、CK释放量和MDA无明显影响。Fe -HQ使心室肌细胞舒张期长度、收缩幅度和±dL/dtmax减小 ,引起灌流心脏LVDP、±dp/dtmax、心率、冠脉流量先增加后降低的双相变化 ,高浓度时可使冠脉流出液LDH和CPK量明显增高 ,心肌MDA增高 ,心律失常加重。
结论: 心肌细胞内铁增加可引起心功能受损和脂质过氧化程度增高 ,水溶性Fe3+ 对心肌细胞功能的影响较脂溶性Fe3+ 小。
Keywords: Iron
Heart
Myocardial injuries
Lipid peroxidation
Publisher: 中國學術期刊(光盤版)電子雜誌社
Journal: 中国病理生理杂志 (Chinese journal of pathophysiology) 
ISSN: 1000-4718
Rights: © 2002 中国学术期刊电子杂志出版社。本内容的使用仅限于教育、科研之目的。
© 2002 China Academic Journal Electronic Publishing House. It is to be used strictly for educational and research purposes.
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