Connexin 43, angiotensin II, endothelin 1, and type III collagen alterations in heart of rats having undergone fatal electrocution

The American Journal of Forensic Medicine and Pathology
Quan-Yong HuangShui-Ping Liu

Abstract

Death due to accidental electrocution occurs frequently. The aim of this study was to investigate alterations in cardiac connexin 43 (Cx43), angiotensin II (Ang II), endothelin 1 (ET-1), and type III collagen associated with fatal electrocution.Twenty-four Sprague-Dawley rats were divided into control, fatal electrocution (220 V, 50 Hz, 60 seconds), and electrical injury (220 V, 50 Hz, 60 seconds) groups. Animals were deeply anesthetized with sodium pentobarbital before each treatment, with the anode connected to the left foreleg and the cathode to the right hindleg, followed by cervical dislocation. Control animals received cervical dislocation alone. Immunohistochemical analysis was performed to evaluate the cardiac protein expression of Cx43, Ang II, ET-1, and type III collagen. Sections were analyzed by digital image analysis.The expression of Cx43 was significantly reduced after fatal electrocution, with the integrated optical density also lower when compared with control (P < 0.05). Expression of both Ang II and ET-1 was significantly increased after fatal electrocution, supported by integrated optical density when compared with control (P < 0.05). But no significant difference was found in type III collagen expression be...Continue Reading

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Citations

Jun 7, 2014·Canadian Journal of Physiology and Pharmacology·Srikanth GivvimaniSuresh C Tyagi
Jul 3, 2015·Experimental and Therapeutic Medicine·Xue-Fang LiShui-Ping Liu
Mar 14, 2016·Journal of Forensic and Legal Medicine·Sachil KumarAnoop K Verma
Jul 29, 2015·Forensic Science International : Synergy·C CattaneoD Gibelli
Apr 24, 2016·Veterinary Pathology·C SchulzeP Wohlsein
Jan 6, 2018·The Medico-legal Journal·Cristina MondelloElvira Ventura Spagnolo
Jun 17, 2014·The American Journal of Forensic Medicine and Pathology·Shuiping LiuXinbiao Liao
May 29, 2016·The Journal of Biological Chemistry·Hanjun LiPaul L Sorgen
Dec 11, 2019·Journal of Forensic Sciences·Guendalina GentileRiccardo Zoja
Jul 28, 2021·International Journal of Legal Medicine·Xin JinGuangtao Xu

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