目的:探讨术前血浆白蛋白与纤维蛋白原比值(albumin to fibrinogen ratio,AFR)及纤维蛋白原与前白蛋白比值(fibrinogen to prealbumin ratio,FPR)对结直肠癌患者生存的预后评价。方法:回顾性分析2012年6月至2014年6月徐州医科大学附属...目的:探讨术前血浆白蛋白与纤维蛋白原比值(albumin to fibrinogen ratio,AFR)及纤维蛋白原与前白蛋白比值(fibrinogen to prealbumin ratio,FPR)对结直肠癌患者生存的预后评价。方法:回顾性分析2012年6月至2014年6月徐州医科大学附属医院行根治性手术切除的286例结直肠癌患者的临床病例资料。通过受试者工作特征(receiver operating characteristic,ROC)曲线确定AFR和FPR的最佳分界值,并通过卡方检验分析AFR和FPR与患者临床病理特征的关系,Kaplan-Meier法进行生存分析,运用log-rank法进行差异性检验,Cox比例风险模型进行多因素回归分析。结果:根据ROC曲线下面积,AFR,FPR对结直肠癌患者预后的预测价值均较好(P<0.05)。术前AFR和FPR均与年龄、大体类型、临床分期、浸润深度、淋巴结转移有密切关系(P<0.05),与性别、肿瘤部位、肿瘤大小、组织学分级、神经侵犯无明显关联(P>0.05)。低FPR水平患者的总生存期(overall survival,OS)明显高于高FPR水平患者(P<0.05);高AFR水平患者的OS明显高于低AFR水平患者(P<0.05)。单因素分析显示:临床分期、浸润深度、淋巴结转移、术后放化疗、AFR、FPR、纤维蛋白原浓度、血浆白蛋白、前白蛋白水平是影响结直肠癌患者OS的危险因素(P<0.05);多因素分析结果表明:临床分期、浸润深度、淋巴结转移、术后放化疗、pAlb、FPR是影响结直肠癌患者术后OS的独立危险因素。结论:术前FPR对结直肠癌患者预后有较好的预测能力,有望成为评估结直肠癌患者预后的必要指标之一。展开更多
FAM 19A4 is an abbreviation for family with sequence similarity 19 （chemokine （C-C motif）-Iike） member A4, which is a secretory protein expressed in low levels in normal tissues. The biological functions of FAM19A...FAM 19A4 is an abbreviation for family with sequence similarity 19 （chemokine （C-C motif）-Iike） member A4, which is a secretory protein expressed in low levels in normal tissues. The biological functions of FAM19A4 remain to be determined, and its potential receptor（s） is unclarified. In this study, we demonstrated that FAM 19A4 was a classical secretory protein and we verified for the first time that its mature protein is composed of 95 amino acids. We found that the expression of this novel cytokine was upregulated in lipopolysaccharide （LPS）-stimulated monocytes and macrophages and was typically in polarized M 1. FAM 19A4 shows chemotactic activities on macrophages and enhances the macrophage phagocytosis of zymosan both in vitro and in vivo with noticeable increases of the phosphorylation of protein kinase B （Akt）. FAM 19A4 can also increase the release of reactive oxygen species （ROS） upon zymosan stimulation. Furthermore, based on receptor internalization, radio ligand binding assays and receptor blockage, we demonstrated for the first time that FAM19A4 is a novel ligand of formyl peptide receptor 1 （FPR1）. The above data indicate that upon inflammatory stimulation, monocyte/macrophage-derived FAM 19A4 may play a crucial role in the migration and activation of macrophages during pathogenic infections.展开更多
Germinal matrix hemorrhage is one of the leading causes of morbidity,mortality,and acquired infantile hydrocephalus in preterm infants in the United States,with little progress made in its clinical management.Blood cl...Germinal matrix hemorrhage is one of the leading causes of morbidity,mortality,and acquired infantile hydrocephalus in preterm infants in the United States,with little progress made in its clinical management.Blood clots have been shown to elicit secondary brain injury after germinal matrix hemorrhage,by disrupting normal cerebrospinal fluid circulation and absorption after germinal matrix hemorrhage causing post-hemorrhagic hydrocephalus development.Current evidence suggests that rapid hematoma resolution is necessary to improve neurological outcomes after hemorrhagic stroke.Various articles have demonstrated the beneficial effects of stimulating the polarization of microglia cells into the M2 phenotype,as it has been suggested that they play an essential role in the rapid phagocytosis of the blood clot after hemorrhagic models of stroke.N-formyl peptide receptor 2(FPR2),a G-protein-coupled receptor,has been shown to be neuroprotective after stroke.FPR2 activation has been associated with the upregulation of phagocytic macrophage clearance,yet its mechanism has not been fully explored.Recent literature suggests that FPR2 may play a role in the stimulation of scavenger receptor CD36.Scavenger receptor CD36 plays a vital role in microglia phagocytic blood clot clearance after germinal matrix hemorrhage.FPR2 has been shown to phosphorylate extracellular-signal-regulated kinase 1/2(ERK1/2),which then promotes the transcription of the dual-specificity protein phosphatase 1(DUSP1)gene.In this review,we present an intrinsic outline of the main components involved in FPR2 stimulation and hematoma resolution after germinal matrix hemorrhage.展开更多
文摘目的:探讨术前血浆白蛋白与纤维蛋白原比值(albumin to fibrinogen ratio,AFR)及纤维蛋白原与前白蛋白比值(fibrinogen to prealbumin ratio,FPR)对结直肠癌患者生存的预后评价。方法:回顾性分析2012年6月至2014年6月徐州医科大学附属医院行根治性手术切除的286例结直肠癌患者的临床病例资料。通过受试者工作特征(receiver operating characteristic,ROC)曲线确定AFR和FPR的最佳分界值,并通过卡方检验分析AFR和FPR与患者临床病理特征的关系,Kaplan-Meier法进行生存分析,运用log-rank法进行差异性检验,Cox比例风险模型进行多因素回归分析。结果:根据ROC曲线下面积,AFR,FPR对结直肠癌患者预后的预测价值均较好(P<0.05)。术前AFR和FPR均与年龄、大体类型、临床分期、浸润深度、淋巴结转移有密切关系(P<0.05),与性别、肿瘤部位、肿瘤大小、组织学分级、神经侵犯无明显关联(P>0.05)。低FPR水平患者的总生存期(overall survival,OS)明显高于高FPR水平患者(P<0.05);高AFR水平患者的OS明显高于低AFR水平患者(P<0.05)。单因素分析显示:临床分期、浸润深度、淋巴结转移、术后放化疗、AFR、FPR、纤维蛋白原浓度、血浆白蛋白、前白蛋白水平是影响结直肠癌患者OS的危险因素(P<0.05);多因素分析结果表明:临床分期、浸润深度、淋巴结转移、术后放化疗、pAlb、FPR是影响结直肠癌患者术后OS的独立危险因素。结论:术前FPR对结直肠癌患者预后有较好的预测能力,有望成为评估结直肠癌患者预后的必要指标之一。
文摘FAM 19A4 is an abbreviation for family with sequence similarity 19 （chemokine （C-C motif）-Iike） member A4, which is a secretory protein expressed in low levels in normal tissues. The biological functions of FAM19A4 remain to be determined, and its potential receptor（s） is unclarified. In this study, we demonstrated that FAM 19A4 was a classical secretory protein and we verified for the first time that its mature protein is composed of 95 amino acids. We found that the expression of this novel cytokine was upregulated in lipopolysaccharide （LPS）-stimulated monocytes and macrophages and was typically in polarized M 1. FAM 19A4 shows chemotactic activities on macrophages and enhances the macrophage phagocytosis of zymosan both in vitro and in vivo with noticeable increases of the phosphorylation of protein kinase B （Akt）. FAM 19A4 can also increase the release of reactive oxygen species （ROS） upon zymosan stimulation. Furthermore, based on receptor internalization, radio ligand binding assays and receptor blockage, we demonstrated for the first time that FAM19A4 is a novel ligand of formyl peptide receptor 1 （FPR1）. The above data indicate that upon inflammatory stimulation, monocyte/macrophage-derived FAM 19A4 may play a crucial role in the migration and activation of macrophages during pathogenic infections.
基金supported in part by the National Institutes of Health grant 5R01NS117364-02(to JT)。
文摘Germinal matrix hemorrhage is one of the leading causes of morbidity,mortality,and acquired infantile hydrocephalus in preterm infants in the United States,with little progress made in its clinical management.Blood clots have been shown to elicit secondary brain injury after germinal matrix hemorrhage,by disrupting normal cerebrospinal fluid circulation and absorption after germinal matrix hemorrhage causing post-hemorrhagic hydrocephalus development.Current evidence suggests that rapid hematoma resolution is necessary to improve neurological outcomes after hemorrhagic stroke.Various articles have demonstrated the beneficial effects of stimulating the polarization of microglia cells into the M2 phenotype,as it has been suggested that they play an essential role in the rapid phagocytosis of the blood clot after hemorrhagic models of stroke.N-formyl peptide receptor 2(FPR2),a G-protein-coupled receptor,has been shown to be neuroprotective after stroke.FPR2 activation has been associated with the upregulation of phagocytic macrophage clearance,yet its mechanism has not been fully explored.Recent literature suggests that FPR2 may play a role in the stimulation of scavenger receptor CD36.Scavenger receptor CD36 plays a vital role in microglia phagocytic blood clot clearance after germinal matrix hemorrhage.FPR2 has been shown to phosphorylate extracellular-signal-regulated kinase 1/2(ERK1/2),which then promotes the transcription of the dual-specificity protein phosphatase 1(DUSP1)gene.In this review,we present an intrinsic outline of the main components involved in FPR2 stimulation and hematoma resolution after germinal matrix hemorrhage.
