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Establishment of refractory high intracrinal pressure model in dogs
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作者 许菲璠 《外科研究与新技术》 2011年第3期225-226,共2页
Objective We expect to have a profound understanding of refractory high intracranial pressure after traumatic brain injury by making a reproducible animal model in dogs experimentally. Methods Ten adult dogs were used... Objective We expect to have a profound understanding of refractory high intracranial pressure after traumatic brain injury by making a reproducible animal model in dogs experimentally. Methods Ten adult dogs were used to make acute epidural balloon compression and decompression models. 展开更多
关键词 HIGH Establishment of refractory high intracrinal pressure model in dogs
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The enigmatic processing and secretion of interleukin-33 被引量:2
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作者 Weihua Zhao Zhiqing Hu 《Cellular & Molecular Immunology》 SCIE CAS CSCD 2010年第4期260-262,共3页
Interleukin-33(IL-33)is the most attractive novel cytokine identified as an IL-1 family member.IL-33 was first named NF-HEV(nuclear factor from high endothelial venules),as it was known to interact with nuclear chroma... Interleukin-33(IL-33)is the most attractive novel cytokine identified as an IL-1 family member.IL-33 was first named NF-HEV(nuclear factor from high endothelial venules),as it was known to interact with nuclear chromatin although its exact intracellular functions are still to be clarified.IL-33 is now recognized as the specific ligand for the orphan IL-1 receptor family member ST2 and to be involved in polarization of T cells towards T helper 2 cell phenotype and in activation of mast cells,bosophils,eosinophils and natural killer cells.It is essential for IL-33 to be extracellularly released in order to bind to the ST2 receptor and consequently play a crucial role in inflammatory,infectious and autoimmune diseases.However,like the IL-1 family members,IL-1b and IL-18,IL-33 mRNA is translated without a signal sequence for secretion.Additionally,IL-33 cannot be released by the processing and secretion mechanism shared by IL-1b and IL-18 as IL-33 is not a substrate of caspase-1 and does not require proteolysis for activation.In contrast,IL-33 can be inactivated by apoptotic caspases.Accordingly,IL-33 is proposed to be released as an alarmin from necrotic cells but to be deleted during apoptosis.Besides the known autocrine,paracrine,intracrine,juxtacrine and retrocrine mechanisms of cellular interaction with cytokines,release by necrotic cells is another pathway for a cytokine to display its function,which we suggest might be called‘necrocrine’.This mini review summarizes recent progress of how IL-33 displays potential immunoregulatory roles with a particular focus on its enigmatic production. 展开更多
关键词 INTERLEUKIN-33 Interleukin-1 family CASPASE-1 INTRACRINE Necrocrine
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