Oxidative stress may be involved in distant organ failure in tourniquet shock model mice

Legal Medicine
Rie NishikataKouichi Hiraiwa

Abstract

Crush syndrome is characterized by prolonged shock resulting from extensive muscle damage and multiple organ failure. However, the pathogenesis of multiple organ failure has not yet been completely elucidated. Therefore, we investigated the molecular biological and histopathological aspects of distant organ injury in crush syndrome by using tourniquet shock model mice. DNA microarray analysis of the soleus muscle showed an increase in the mRNA levels of Cox-2, Hsp70, c-fos, and IL-6, at 3h after ischemia/reperfusion injury at the lower extremity. In vivo staining with hematoxylin and eosin (HE) showed edema and degeneration in the soleus muscle, but no change in the distant organs. Immunohistological staining of the HSP70 protein revealed nuclear translocation in the soleus muscle, kidney, liver, and lung. The c-fos mRNA levels were elevated in the soleus muscle, kidney, and liver, displaying nuclear translocation of c-FOS protein. Terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL) analysis suggested the involvement of apoptosis in ischemia/reperfusion injury in the soleus muscle. Apoptotic cells were not found in greater quantities in the kidney. Oxidative stress, as determined using a free radical elective e...Continue Reading

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Citations

Jun 4, 2020·European Journal of Trauma and Emergency Surgery : Official Publication of the European Trauma Society·Mengyang YuShike Hou
Sep 1, 2019·European Journal of Trauma and Emergency Surgery : Official Publication of the European Trauma Society·Emine KadıoğluFatma Emel Koçak
Jan 8, 2018·Turkish Journal of Medical Sciences·Demet AcarBaşar Cander

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