目的:系统评价预后营养指数(PNI)与原发性肝癌(HCC)肝切除病人预后的关系。方法:全面检索PubMed、百度学术、CINAHL、Google Scholar、Web of Science、OVID、中国生物医学文献数据库、中国知网、万方数据库和维普数据库中关于PNI和肝...目的:系统评价预后营养指数(PNI)与原发性肝癌(HCC)肝切除病人预后的关系。方法:全面检索PubMed、百度学术、CINAHL、Google Scholar、Web of Science、OVID、中国生物医学文献数据库、中国知网、万方数据库和维普数据库中关于PNI和肝癌肝切除病人预后关系的文献,检索时限为建库至2022年5月31日,使用RevMan 5.2软件进行Meta分析。结果:共纳入6篇文献,涉及1 459例病人。Meta分析结果显示,低PNI与原发性肝癌肝切除病人的总生存期(OS)[HR=1.94,95%CI(1.53,2.44),P<0.001]、无复发生存期(RFS)[HR=1.59,95%CI(1.34,1.89),P<0.001]相关。亚组分析显示:中国人群[HR=1.95,95%CI(1.53,2.48)]与日本人群[HR=1.96,95%CI(1.21,3.18)]的PNI对肝癌肝切除病人的预测价值均有明显差异,同时PNI值为45.00~49.50对肝癌肝切除病人有较好的预测效果。结论:现有证据表明,PNI水平与肝癌肝切除病人OS、RFS明显相关,低PNI可作为此类病人预后预测的有效标志物。展开更多
Nasopharyngeal carcinoma(NPC)has been a focus of medical research for more than 100 years,with significant interest emerging over the last 58 years following the identification of the link between the disease and Epst...Nasopharyngeal carcinoma(NPC)has been a focus of medical research for more than 100 years,with significant interest emerging over the last 58 years following the identification of the link between the disease and Epstein-Barr virus(EBV)infection.NPC possesses several distinctive characteristics among human cancers,notably its well-documented global epidemiology,which reveals localized high-incidence regions primarily in Southeast Asia,particularly in the Southern provinces of China near the Pearl river,as well as in Greenland and North Africa.Epidemiological data indicate a marked male predominance,early disease onset,and a nearly 100%prevalence of latent EBV infection in the tumors.Due to lack of consistent pattern of cancer-related mutations in NPC genomes and excessive DNA-methylation in the tumor cells,NPC can be considered"an epigenetic cancer".Despite extensive researches,convincing biological explanations for these unique characteristics remain elusive.Recently,suggestive evidence has been published that specific local variants of EBV may represent major high risk factors.In spite of tumor and virus specific immunity,it has not been possible to use this for improved treatment.Ongoing studies on the role of the local microflora and tumor microenvironment are essential for a comprehensive understanding of host-EBV-tumor interactions.Ultimately,this knowledge aims to enhance diagnosis,disease fractionation,treatment strategies,and potentially prevention of NPC.展开更多
文摘Nasopharyngeal carcinoma(NPC)has been a focus of medical research for more than 100 years,with significant interest emerging over the last 58 years following the identification of the link between the disease and Epstein-Barr virus(EBV)infection.NPC possesses several distinctive characteristics among human cancers,notably its well-documented global epidemiology,which reveals localized high-incidence regions primarily in Southeast Asia,particularly in the Southern provinces of China near the Pearl river,as well as in Greenland and North Africa.Epidemiological data indicate a marked male predominance,early disease onset,and a nearly 100%prevalence of latent EBV infection in the tumors.Due to lack of consistent pattern of cancer-related mutations in NPC genomes and excessive DNA-methylation in the tumor cells,NPC can be considered"an epigenetic cancer".Despite extensive researches,convincing biological explanations for these unique characteristics remain elusive.Recently,suggestive evidence has been published that specific local variants of EBV may represent major high risk factors.In spite of tumor and virus specific immunity,it has not been possible to use this for improved treatment.Ongoing studies on the role of the local microflora and tumor microenvironment are essential for a comprehensive understanding of host-EBV-tumor interactions.Ultimately,this knowledge aims to enhance diagnosis,disease fractionation,treatment strategies,and potentially prevention of NPC.
