نتایج جستجو برای: neutrophil activation
تعداد نتایج: 463084 فیلتر نتایج به سال:
Neutrophils are abundant, short-lived leukocytes, and their death by apoptosis is central to hemostasis and the resolution of inflammation, yet the trigger for their entry into apoptosis is unknown. We show here that death receptor signaling, including CD95 death-inducing signaling complex (DISC) formation and caspase 8 activation, occurred early in neutrophil apoptosis. However, death receptor...
INTRODUCTION Positive pressure ventilation with large tidal volumes has been shown to cause release of cytokines, including macrophage inflammatory protein-2 (MIP-2), a functional equivalent of human IL-8, and neutrophil infiltration. Hyperoxia has been shown to increase ventilator-induced lung injury, but the mechanisms regulating interaction between a large tidal volume and hyperoxia are uncl...
signaling amp-activated protein kinase (ampk), an energy sensing enzyme, has been implicated in controlling inflammation. in this study we investigated whether activation of ampk by metformin could protect the lung from lipopolysaccharide (lps)-induced acute injury by inhibitingng tlr4 pathway. male wistar rats were randomly divided into 3 groups (n=6): control group received normal saline (0.5...
Neutrophil recruitment to the site of inflammation plays a pivotal role in host defense. However, overwhelming activation and accumulation of neutrophils in the tissue may cause tissue damage and autoimmunity due to the release of cytokines, oxidants, and proteases. Neutrophil adhesion in acute inflammation is initiated by activation of αLβ2 (LFA-1), which can be induced by rolling on E-selecti...
Surfactant protein D (SP-D) and neutrophils participate in the early innate immune response to influenza A virus (IAV) infection. SP-D increases neutrophil uptake of IAV and modulates neutrophil respiratory burst responses to IAV; however, neutrophil proteases have been shown to degrade SP-D, and human neutrophil peptide defensins bind to SP-D and can cause precipitation of SP-D from bronchoalv...
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