目的探讨血清中性粒细胞/淋巴细胞比值(NLR)预测老年胃癌根治术患者术后认知功能障碍(POCD)的价值。方法选择择期行胃癌根治术患者100例,男67例,女33例,年龄≥65岁,ASAⅡ或Ⅲ级。患者手术均在气管插管全麻下进行,在术前及术后第7天通过...目的探讨血清中性粒细胞/淋巴细胞比值(NLR)预测老年胃癌根治术患者术后认知功能障碍(POCD)的价值。方法选择择期行胃癌根治术患者100例,男67例,女33例,年龄≥65岁,ASAⅡ或Ⅲ级。患者手术均在气管插管全麻下进行,在术前及术后第7天通过Z计分法评估患者认知功能,根据评分结果将患者分为两组:POCD组和NPOCD组。记录术前1 d、术后1、3 d血清中NLR的变化。应用受试者工作特征(ROC)曲线,分析各时点血清NLR对老年胃癌根治术患者发生POCD的预测价值。结果术后7 d发生POCD患者22例(22%)。与术前1 d比较,术后1、3 d两组NLR明显升高(P<0.05)。术后1、3 d POCD组血清NLR明显高于NPOCD组(P<0.05)。术后3 d血清中NLR预测老年胃癌根治术患者发生POCD的最佳界值为6.986,预测POCD发生的AUC为0.818(95%CI 0.728~0.888),敏感性和特异性分别为88.5%和68.2%,高于术后1 d NLR的AUC为0.799(95%CI 0.707~0.872)。结论老年胃癌根治术患者术后3 d NLR对术后7 d POCD发生的预测价值较高,血清中NLR的升高可能与术后POCD的发生相关,术后NLR升高是发生POCD的危险因素。展开更多
Improving grain quality is an important goal in breeding new elite rice varieties,requiring effective tools for the identification of target genotypes.Molecular marker-aided selection(MAS),combined with conventional b...Improving grain quality is an important goal in breeding new elite rice varieties,requiring effective tools for the identification of target genotypes.Molecular marker-aided selection(MAS),combined with conventional breeding approaches,enables us to pre-cisely identify the individual genotypes that are associated with different grain quality features,which can dramatically improve the breeding efficiency.However,to date,the number of molecular markers used in MAS for grain quality improvement is still somewhat limited.In this study,based on our previous study that rice grain quality is strongly associated with starch synthesis in the endosperm,we developed 51 gene-tagged molecular markers according to sequence variations in 18 starch synthesis-related genes from 16 typical rice cultivars.These markers can discriminate the different alleles among rice germplasms.These novel markers will provide effective tools in improving grain quality via the breeding new elite rice varieties.展开更多
文摘目的探讨血清中性粒细胞/淋巴细胞比值(NLR)预测老年胃癌根治术患者术后认知功能障碍(POCD)的价值。方法选择择期行胃癌根治术患者100例,男67例,女33例,年龄≥65岁,ASAⅡ或Ⅲ级。患者手术均在气管插管全麻下进行,在术前及术后第7天通过Z计分法评估患者认知功能,根据评分结果将患者分为两组:POCD组和NPOCD组。记录术前1 d、术后1、3 d血清中NLR的变化。应用受试者工作特征(ROC)曲线,分析各时点血清NLR对老年胃癌根治术患者发生POCD的预测价值。结果术后7 d发生POCD患者22例(22%)。与术前1 d比较,术后1、3 d两组NLR明显升高(P<0.05)。术后1、3 d POCD组血清NLR明显高于NPOCD组(P<0.05)。术后3 d血清中NLR预测老年胃癌根治术患者发生POCD的最佳界值为6.986,预测POCD发生的AUC为0.818(95%CI 0.728~0.888),敏感性和特异性分别为88.5%和68.2%,高于术后1 d NLR的AUC为0.799(95%CI 0.707~0.872)。结论老年胃癌根治术患者术后3 d NLR对术后7 d POCD发生的预测价值较高,血清中NLR的升高可能与术后POCD的发生相关,术后NLR升高是发生POCD的危险因素。
文摘目的观察超声引导下腹横肌平面阻滞(transverse abdominal muscle plane block,TAPB)对胃癌根治术患者外周血中性粒细胞与淋巴细胞比率(neutrophil/lymphocyte ratio,NLR)、血小板与淋巴细胞比率(platelet/lymphocyte ratio,PLR)的影响。方法选取择期行胃癌根治术的患者100例,采用随机数字表法分为TAPB+全身麻醉组(TAP+GA组)和全身麻醉组(GA组),每组50例。TAP+GA组和GA组分别在超声引导TAPB辅助全身麻醉和单纯全身麻醉下行胃癌根治术。记录两组患者手术时间、麻醉时间、失血量、芬太尼用量、瑞芬太尼用量。比较两组患者术前及术后24、72 h外周血中性粒细胞、血小板、淋巴细胞计数和NLR、PLR水平,记录两组患者术后24、48 h VAS疼痛评分及不良反应、住院时间。结果两组患者手术时间、麻醉时间、失血量及芬太尼用量比较,差异均无统计学意义(P>0.05);与GA组比较,TAP+GA组瑞芬太尼用量明显减少(P<0.05)。两组患者术前外周血中性粒细胞、血小板、淋巴细胞计数和PLR、NLR差异均无统计学意义(P>0.05);与GA组比较,术后24、72 h TAP+GA组外周血中性粒细胞计数明显降低(P<0.05),淋巴细胞、血小板计数和PLR的差异无统计学意义(P>0.05);术后24 h两组外周血NLR差异无统计学意义(P>0.05),术后72 h TAP+GA组外周血NLR明显低于GA组(P<0.05)。TAP+GA组术后24、48 h VAS疼痛评分明显低于GA组(P<0.05),TAP+GA组术后恶心呕吐次数明显少于GA组(P<0.05),两组住院时间及术后肺部感染、吻合口瘘、肠梗阻发生情况差异均无统计学意义(P>0.05)。结论超声引导下TAPB辅助全身麻醉有助于降低患者术后外周血中性粒细胞及NLR水平,且可以改善术后疼痛、减少术后恶心呕吐的发生。
基金supported by the National High Technology Research and Development Program of China(2006AA10Z118,2006AA10A102,2005CB120804)National Natural Science Foundation of China(30530470)+1 种基金Fok Ying Tung Young Teachers'Fund(10103)National Postdoctoral Fellowship(20060390966)
文摘Improving grain quality is an important goal in breeding new elite rice varieties,requiring effective tools for the identification of target genotypes.Molecular marker-aided selection(MAS),combined with conventional breeding approaches,enables us to pre-cisely identify the individual genotypes that are associated with different grain quality features,which can dramatically improve the breeding efficiency.However,to date,the number of molecular markers used in MAS for grain quality improvement is still somewhat limited.In this study,based on our previous study that rice grain quality is strongly associated with starch synthesis in the endosperm,we developed 51 gene-tagged molecular markers according to sequence variations in 18 starch synthesis-related genes from 16 typical rice cultivars.These markers can discriminate the different alleles among rice germplasms.These novel markers will provide effective tools in improving grain quality via the breeding new elite rice varieties.
