目的研究应用吸入一氧化氮(iNO)治疗急性A型主动脉夹层(acute type A aortic dissection,ATAAD)手术后严重低氧血症的疗效。方法回顾性分析2015年1月至2020年12月我院手术的ATAAD患者资料,排除术后72h内病死、术后卒中和截瘫患者,共48...目的研究应用吸入一氧化氮(iNO)治疗急性A型主动脉夹层(acute type A aortic dissection,ATAAD)手术后严重低氧血症的疗效。方法回顾性分析2015年1月至2020年12月我院手术的ATAAD患者资料,排除术后72h内病死、术后卒中和截瘫患者,共48例严重低氧血症(氧合指数<100 mm Hg)患者入组。2018年9月之前采用常规疗法,共28例,归入CON组;2018年10月之后应用吸入一氧化氮治疗共20例,归入iNO组,该组除了常规方法外给予吸入体积分数为5×10^(-6)的一氧化氮。结果两组术前资料、术中手术方式、时间和输血量等均无统计学差异。术后CON组低氧血症改善缓慢,iNO组氧合指数上升明显加快。术后早期病死率iNO组(10%)与CON组(10.7%)相比差异无统计意义。iNO组机械通气时间(87.3±13.1)h低于CON组(128.5±16.6)h,ICU停留时间iNO组(12.1±1.57)d低于CON组(14.4±1.93)d,术后住院时间iNO组(19.8±1.64)d短于CON组(21.4±1.93)d。结论i NO治疗ATAAD术后严重低氧血症安全有效,可显著促进患者氧合功能改善和缩短气管插管呼吸机使用时间。展开更多
报道了浙江蔷薇科Rosaceae悬钩子属Rubus L.植物分类研究中的若干新发现:(1)描述了1新种--掌叶山莓R.palmatiformisZ.H.Chen,F.ChenetF.G.Zhang;2新变种--圆叶悬钩子R.amphidasysFockevar.suborbiculatus Z. H. Chen, W. Y. Xie et F. G...报道了浙江蔷薇科Rosaceae悬钩子属Rubus L.植物分类研究中的若干新发现:(1)描述了1新种--掌叶山莓R.palmatiformisZ.H.Chen,F.ChenetF.G.Zhang;2新变种--圆叶悬钩子R.amphidasysFockevar.suborbiculatus Z. H. Chen, W. Y. Xie et F. G. Zhang和展毛悬钩子R. hakonensis Franch. et Sav. var. villosulusZ. H.Chen, W. Y. Xie et F. G. Zhang。(2)恢复了箱根悬钩子R. hakonensis Franch. et Sav.的种级地位,纠正了以往的错误鉴定;将三裂中南悬钩子R.grayanusMaxim.var.trilobatusT.T.YuetL.T.Lu和无毛光果悬钩子R.glabricarpus var. glabratus C. Z. Zheng et Y. Y. Fang作为武夷悬钩子R. jiangxiensis Z. X. Yu, W. T. Ji et H. Zheng的新异名。(3)报道了3个植物分布新记录,其中攀枝莓R. flagelliflorus Focke ex Diels.和铅山悬钩子R. tsangii Merr.var.yanshanensis(Z.X.YuetW.T.Ji)L.T.Lu为浙江分布新记录,黄果蓬蘽R.hirsutusThunb.f.xanthocarpus(Nakai) M. Kim为中国分布新记录。展开更多
Pinus tabulaeformis seedlings were grown under a factorial design to measure biomass accumulation and P, Na and K concentrations of plants, with 3 different ectomycorrhizal fungus (EMF) strains (Boletus edulis, Xeroco...Pinus tabulaeformis seedlings were grown under a factorial design to measure biomass accumulation and P, Na and K concentrations of plants, with 3 different ectomycorrhizal fungus (EMF) strains (Boletus edulis, Xerocomus chrysenteron and Gomphidius viscidus) and two P treatments (with or without extra P). Growth and mineral nutrition of pine seedlings were stimulated by three EMF under salinity stress. Na concentrations were changed and plant K and P concentrations were increased significantly by EMF. Adding extra P made no difference in accumulation of seedlings biomass, and did not assist element absorption of plants. Although three strains of EMF can all enhance the tolerance of pine seedlings to salinity stress, they may utilize different mechanisms because of different performance in absorption of elements. The increased P and K accumulation and the balance of ion concentrations might be due to the enhanced tolerance of EMF-inoculated plants to saline conditions.展开更多
文摘目的研究应用吸入一氧化氮(iNO)治疗急性A型主动脉夹层(acute type A aortic dissection,ATAAD)手术后严重低氧血症的疗效。方法回顾性分析2015年1月至2020年12月我院手术的ATAAD患者资料,排除术后72h内病死、术后卒中和截瘫患者,共48例严重低氧血症(氧合指数<100 mm Hg)患者入组。2018年9月之前采用常规疗法,共28例,归入CON组;2018年10月之后应用吸入一氧化氮治疗共20例,归入iNO组,该组除了常规方法外给予吸入体积分数为5×10^(-6)的一氧化氮。结果两组术前资料、术中手术方式、时间和输血量等均无统计学差异。术后CON组低氧血症改善缓慢,iNO组氧合指数上升明显加快。术后早期病死率iNO组(10%)与CON组(10.7%)相比差异无统计意义。iNO组机械通气时间(87.3±13.1)h低于CON组(128.5±16.6)h,ICU停留时间iNO组(12.1±1.57)d低于CON组(14.4±1.93)d,术后住院时间iNO组(19.8±1.64)d短于CON组(21.4±1.93)d。结论i NO治疗ATAAD术后严重低氧血症安全有效,可显著促进患者氧合功能改善和缩短气管插管呼吸机使用时间。
文摘报道了浙江蔷薇科Rosaceae悬钩子属Rubus L.植物分类研究中的若干新发现:(1)描述了1新种--掌叶山莓R.palmatiformisZ.H.Chen,F.ChenetF.G.Zhang;2新变种--圆叶悬钩子R.amphidasysFockevar.suborbiculatus Z. H. Chen, W. Y. Xie et F. G. Zhang和展毛悬钩子R. hakonensis Franch. et Sav. var. villosulusZ. H.Chen, W. Y. Xie et F. G. Zhang。(2)恢复了箱根悬钩子R. hakonensis Franch. et Sav.的种级地位,纠正了以往的错误鉴定;将三裂中南悬钩子R.grayanusMaxim.var.trilobatusT.T.YuetL.T.Lu和无毛光果悬钩子R.glabricarpus var. glabratus C. Z. Zheng et Y. Y. Fang作为武夷悬钩子R. jiangxiensis Z. X. Yu, W. T. Ji et H. Zheng的新异名。(3)报道了3个植物分布新记录,其中攀枝莓R. flagelliflorus Focke ex Diels.和铅山悬钩子R. tsangii Merr.var.yanshanensis(Z.X.YuetW.T.Ji)L.T.Lu为浙江分布新记录,黄果蓬蘽R.hirsutusThunb.f.xanthocarpus(Nakai) M. Kim为中国分布新记录。
基金Supported by the National Natural Science Foundation of China (No.4002101)
文摘Pinus tabulaeformis seedlings were grown under a factorial design to measure biomass accumulation and P, Na and K concentrations of plants, with 3 different ectomycorrhizal fungus (EMF) strains (Boletus edulis, Xerocomus chrysenteron and Gomphidius viscidus) and two P treatments (with or without extra P). Growth and mineral nutrition of pine seedlings were stimulated by three EMF under salinity stress. Na concentrations were changed and plant K and P concentrations were increased significantly by EMF. Adding extra P made no difference in accumulation of seedlings biomass, and did not assist element absorption of plants. Although three strains of EMF can all enhance the tolerance of pine seedlings to salinity stress, they may utilize different mechanisms because of different performance in absorption of elements. The increased P and K accumulation and the balance of ion concentrations might be due to the enhanced tolerance of EMF-inoculated plants to saline conditions.
