Journal of critical care
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Journal of critical care · Dec 2011
Dynamic changes of matrix metalloproteinases and their tissue inhibitors in severe sepsis.
Little is known about the dynamic changes of matrix metalloproteinases (MMPs) and their inhibitors (TIMPs) in sepsis. Our aim was therefore to investigate the time course of MMPs and their inhibitors in patients experiencing severe sepsis. ⋯ Our research is the first follow-up study dealing with MMPs, TIMPs, and their ratios in severe sepsis. Our results indicate that MMPs and TIMPs may play a crucial role in severe sepsis, especially TIMP-1, MMP-9, and possibly TIMP-2, after an extensive study.
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Journal of critical care · Dec 2011
Acute kidney injury on ventilator initiation day independently predicts prolonged mechanical ventilation in intensive care unit patients.
The purpose of this study is to identify the predictors for prolonged mechanical ventilation (PMV) of more than 21 days among intensive care unit (ICU) patients. ⋯ Acute kidney injury on MV initiation day is an independent risk factor for PMV of more than 21 days, which may be helpful for clinicians to refine their management of these ICU patients early.
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Journal of critical care · Dec 2011
Elevated plasma matrix metalloproteinases and their tissue inhibitors in patients with severe sepsis.
Matrix metalloproteinases (MMPs) are essential for tissue remodeling. Our objectives were to determine (1) the concentrations of MMPs and their tissue inhibitors (TIMPs) in plasma obtained from patients with severe sepsis, (2) to correlate changes in MMP and TIMP levels with disease severity, and (3) to investigate recombinant activated protein C (rAPC) actions on plasma MMP2, 9 activities from severe sepsis patients. ⋯ Most plasma MMPs and TIMPS were elevated in patients with severe sepsis, but only a limited subset of MMPs (7, 9) negatively correlated with disease severity. Recombinant activated protein C does not appear to directly alter MMP2, 9 activities.
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Journal of critical care · Dec 2011
Plasma gelsolin levels and 1-year mortality after first-ever ischemic stroke.
Plasma gelsolin depletion has been associated with poor outcome of critically ill patients. We sought to investigate change in plasma gelsolin level after ischemic stroke and to evaluate its relation with disease outcome. ⋯ Plasma gelsolin level is a useful, complementary tool to predict mortality after ischemic stroke.
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Journal of critical care · Dec 2011
Suppression of high-mobility group box-1 and receptor for advanced glycation end-product axis by polymyxin B-immobilized fiber hemoperfusion in septic shock patients.
Endotoxin plays a role in organ failure in septic shock patients. High-mobility group box 1 (HMGB1) and receptor for advanced glycation end-products (RAGE) axis is also involved in septic shock. We investigated here the effects of endotoxin removal by polymyxin B-immobilized polystyrene fiber (PMX-F) treatment on circulating levels of HMGB1, soluble RAGE (sRAGE), and interleukin-6 (IL-6) in septic shock patients. ⋯ Our present study suggests that PMX-F treatment could block the HMGB1-RAGE axis in patients with septic shock via removal of endotoxin-induced inflammatory reactions.