The effect of captopril on the expression of MMP-9 and the prognosis of neurological function in herpes simplex encephalitis mice
2016
Background and purpose: Early increased matrix metalloproteinase-9 (MMP-9) expression is involved in the evolution of herpes simplex encephalitis (HSE) by facilitating the development of cerebrovascular complications. However, the molecular mechanism underlying the detrimental effects of MMP-9 in HSE has not been elucidated. Recent research finds angiotensin II plays an important role in regulation of MMP-9 activity. The aim of this work was to identify the influence of angiotensin-converting enzyme inhibitor (ACEI) captopril on MMP-9 activation after herpes simplex virus 1 (HSV-1) infection.Methods: Animal models of HSE were established by intracerebral inoculation of HSV-1 into mice. Brain tissue ROS levels were measured by staining with dihydroethidium. MMP-9 protein expression was detected by immunofluorescence and brain water content was measured with dry-wet weight method. Neurological function score was quantified 5 d after HSV-1 infection. Microglial cells were treated with various concentrations ...
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