目的探讨血清N末端B型利钠肽前体、高迁移率族蛋白B1检测联合急性生理与慢性健康评分Ⅱ对严重脓毒症患儿的早期预后评估。方法回顾性收集2017年1月至2021年6月上海市第十人民医院128例严重脓毒症患儿临床资料,根据患儿预后情况,分为预...目的探讨血清N末端B型利钠肽前体、高迁移率族蛋白B1检测联合急性生理与慢性健康评分Ⅱ对严重脓毒症患儿的早期预后评估。方法回顾性收集2017年1月至2021年6月上海市第十人民医院128例严重脓毒症患儿临床资料,根据患儿预后情况,分为预后良好组(97例)和预后不良组(31例)。分析影响严重脓毒症患儿预后的相关因素,评价血清N末端B型利钠肽前体、高迁移率族蛋白B1及急性生理与慢性健康评分Ⅱ对患儿预后的判断价值。结果预后不良组重症加强护理病房(intensive care unit,ICU)停留时间、呼吸机使用时间较预后良好组延长,脓毒症休克比例、急性生理与慢性健康评分Ⅱ、血清N末端B型利钠肽前体及高迁移率族蛋白B1水平显著高于预后良好组(P<0.05),而预后不良组氧合指数低于预后良好组(P<0.05)。Logistic回归分析显示,ICU停留时间、呼吸机使用时间、急性生理与慢性健康评分Ⅱ及血清N末端B型利钠肽前体、高迁移率族蛋白B1水平是影响严重脓毒症患儿预后的危险因素(P<0.05)。血清N末端B型利钠肽前体、高迁移率族蛋白B1联合急性生理与慢性健康评分Ⅱ评估严重脓毒症患儿预后的曲线下面积为0.928,预测灵敏度为83.9%,特异度为88.7%。结论血清N末端B型利钠肽前体、高迁移率族蛋白B1检测联合急性生理与慢性健康评分Ⅱ与严重脓毒症患儿预后密切相关,联合分析各项指标有助于早期评估患儿预后情况。展开更多
Solvent extraction of palladium （Ⅱ） from hydrochloric acid solution with 2-n-octyl-4-isothiazolin-3-one （OIT）/cyclohexane was studied. Effects of different parameters on extraction efficiency were evaluated. 99.9...Solvent extraction of palladium （Ⅱ） from hydrochloric acid solution with 2-n-octyl-4-isothiazolin-3-one （OIT）/cyclohexane was studied. Effects of different parameters on extraction efficiency were evaluated. 99.96 % and 98.26 % palladium （Ⅱ） could be effectively extracted with 0.018 mol·L^-1 OIT/cyclohexane of 0.1 and 4.0 mol·L^-1 HCl medium, respectively. Nonpolar solvent and low acidity could improve the extracting efficiency, and successfully strip palladium （Ⅱ） from the loaded organic phase was achieved with 0.5 mol·L^-1 （NH2）2CS solution. It was proposed that the extraction of Pd com-plexes from HCl medium proceeded through the ion-association mechanism by slope method, NMR and FF-IR spectra.展开更多
The title compound bis（1-（4-（dimethylamino）benzylidene）-4-phenylthiosemicar-bazato）-palladium（Ⅱ）（PdL2） was obtained by reacting 1-（4-（dimethylamino）benzylidene）-4-phenyl-thiosemicarbazide with dichloro...The title compound bis（1-（4-（dimethylamino）benzylidene）-4-phenylthiosemicar-bazato）-palladium（Ⅱ）（PdL2） was obtained by reacting 1-（4-（dimethylamino）benzylidene）-4-phenyl-thiosemicarbazide with dichlorobis（benzonitrile）palladium（Ⅱ） in methanol,and its structure was characterized by single-crystal X-ray diffraction.The crystal of PdL2 was obtained in dimethyl-formamide（DMF） solvent with solvent molecules involved in the cell and crystallizes in the monoclinic system,space group C2 with a = 18.485（15）,b = 7.090（5）,c = 17.595（11） ,β = 121.21（3）o,V = 1972（2） 3,Z = 2,Mr = 847.40,Dc = 1.427 g/cm3,μ = 0.624 mm-1,F（000） = 880,R = 0.0607 and wR = 0.1358.The Pd atom adopts a distorted square planar coordination geometry with two Pd-N and two Pd-S bonds.The ligand loses a proton from its tautomeric thiol form and coordinates to the Pd atom via mercapto sulfur and the imine nitrogen atom,which binds to palladium as bidentate N,S-donors forming five-membered chelate rings.The complex formed hydrogen bonding interaction with solvent DMF molecules from the hydrogen of phenylamine to the oxygen of DMF and several intramolecular hydrogen bonds.Pd（Ⅱ） perturbed ligand π-π＊ transition and metal-to-ligand charge transfer（MLCT） transition are observed in its electronic absorption spectra.The complex exhibits intraligand 1π-π＊（IL） state and MLCT state dual fluorescent emissions in organic solvent at room temperature.展开更多
PdCl 2 (CH 3) 3CC 6H 4SC 4H 9- S 2, C 28 H 44 Cl 2S 2Pd, M r =622.0756, triclinic, space group P1, a=10.403(2), b=12.346(2), c=13.475(2) , α=89 11(1)°, β=75.44(1)°, γ=69.52(...PdCl 2 (CH 3) 3CC 6H 4SC 4H 9- S 2, C 28 H 44 Cl 2S 2Pd, M r =622.0756, triclinic, space group P1, a=10.403(2), b=12.346(2), c=13.475(2) , α=89 11(1)°, β=75.44(1)°, γ=69.52(1)°, V=1564.2(5) 3, Z=2, D c =1.32 g/cm 3, Mo Kα radiation, μ =9.00 cm -1 , F(000)=647.95, R =0.0316 for 4561 observed reflections with I≥3σ(I) . Pd(Ⅱ) is coordinated by two chloride atoms and two sulfur atoms of organic ligands, forming a rhombic quadrilateral plane with Pd-S of 2.325(1) and Pd-Cl of 2.295(1) .展开更多
Chemical Department,Liaoning University,Shenyang110036)abstract:( 3 Chemistry Department,Northeast Normal University,Changchun130024)abstract:The mixed l igand complex[Pd(biqu)abstract:(pmal)abstract:]·H 2 O(wher...Chemical Department,Liaoning University,Shenyang110036)abstract:( 3 Chemistry Department,Northeast Normal University,Changchun130024)abstract:The mixed l igand complex[Pd(biqu)abstract:(pmal)abstract:]·H 2 O(where biqu is2,2’-biquinoline,pmal is phenethylmalonate)abstract:has been synthesi zed and its interaction with sperm DNA was determined by fluorescent spectra?UV -Vis spectra and CD-spectra.The binding constant(K b )abstract:of the complex and sperm DNA is1.26×10 4 and its interaction with pBR322plasmid DNA was also determined by gel electr ophoresis.The results show that the complex interact with DNA mainly by展开更多
文摘目的探讨血清N末端B型利钠肽前体、高迁移率族蛋白B1检测联合急性生理与慢性健康评分Ⅱ对严重脓毒症患儿的早期预后评估。方法回顾性收集2017年1月至2021年6月上海市第十人民医院128例严重脓毒症患儿临床资料,根据患儿预后情况,分为预后良好组(97例)和预后不良组(31例)。分析影响严重脓毒症患儿预后的相关因素,评价血清N末端B型利钠肽前体、高迁移率族蛋白B1及急性生理与慢性健康评分Ⅱ对患儿预后的判断价值。结果预后不良组重症加强护理病房(intensive care unit,ICU)停留时间、呼吸机使用时间较预后良好组延长,脓毒症休克比例、急性生理与慢性健康评分Ⅱ、血清N末端B型利钠肽前体及高迁移率族蛋白B1水平显著高于预后良好组(P<0.05),而预后不良组氧合指数低于预后良好组(P<0.05)。Logistic回归分析显示,ICU停留时间、呼吸机使用时间、急性生理与慢性健康评分Ⅱ及血清N末端B型利钠肽前体、高迁移率族蛋白B1水平是影响严重脓毒症患儿预后的危险因素(P<0.05)。血清N末端B型利钠肽前体、高迁移率族蛋白B1联合急性生理与慢性健康评分Ⅱ评估严重脓毒症患儿预后的曲线下面积为0.928,预测灵敏度为83.9%,特异度为88.7%。结论血清N末端B型利钠肽前体、高迁移率族蛋白B1检测联合急性生理与慢性健康评分Ⅱ与严重脓毒症患儿预后密切相关,联合分析各项指标有助于早期评估患儿预后情况。
基金financially supported by the National Natural Science Foundation of China(No.21271073)
文摘Solvent extraction of palladium （Ⅱ） from hydrochloric acid solution with 2-n-octyl-4-isothiazolin-3-one （OIT）/cyclohexane was studied. Effects of different parameters on extraction efficiency were evaluated. 99.96 % and 98.26 % palladium （Ⅱ） could be effectively extracted with 0.018 mol·L^-1 OIT/cyclohexane of 0.1 and 4.0 mol·L^-1 HCl medium, respectively. Nonpolar solvent and low acidity could improve the extracting efficiency, and successfully strip palladium （Ⅱ） from the loaded organic phase was achieved with 0.5 mol·L^-1 （NH2）2CS solution. It was proposed that the extraction of Pd com-plexes from HCl medium proceeded through the ion-association mechanism by slope method, NMR and FF-IR spectra.
基金supported by the National Basic Research Program of China (973 Program,2007CB815301)NSF (No. 20721001)the Science & Technology Innovation Project of Xiamen University (No. K70025)
文摘The title compound bis（1-（4-（dimethylamino）benzylidene）-4-phenylthiosemicar-bazato）-palladium（Ⅱ）（PdL2） was obtained by reacting 1-（4-（dimethylamino）benzylidene）-4-phenyl-thiosemicarbazide with dichlorobis（benzonitrile）palladium（Ⅱ） in methanol,and its structure was characterized by single-crystal X-ray diffraction.The crystal of PdL2 was obtained in dimethyl-formamide（DMF） solvent with solvent molecules involved in the cell and crystallizes in the monoclinic system,space group C2 with a = 18.485（15）,b = 7.090（5）,c = 17.595（11） ,β = 121.21（3）o,V = 1972（2） 3,Z = 2,Mr = 847.40,Dc = 1.427 g/cm3,μ = 0.624 mm-1,F（000） = 880,R = 0.0607 and wR = 0.1358.The Pd atom adopts a distorted square planar coordination geometry with two Pd-N and two Pd-S bonds.The ligand loses a proton from its tautomeric thiol form and coordinates to the Pd atom via mercapto sulfur and the imine nitrogen atom,which binds to palladium as bidentate N,S-donors forming five-membered chelate rings.The complex formed hydrogen bonding interaction with solvent DMF molecules from the hydrogen of phenylamine to the oxygen of DMF and several intramolecular hydrogen bonds.Pd（Ⅱ） perturbed ligand π-π＊ transition and metal-to-ligand charge transfer（MLCT） transition are observed in its electronic absorption spectra.The complex exhibits intraligand 1π-π＊（IL） state and MLCT state dual fluorescent emissions in organic solvent at room temperature.
文摘PdCl 2 (CH 3) 3CC 6H 4SC 4H 9- S 2, C 28 H 44 Cl 2S 2Pd, M r =622.0756, triclinic, space group P1, a=10.403(2), b=12.346(2), c=13.475(2) , α=89 11(1)°, β=75.44(1)°, γ=69.52(1)°, V=1564.2(5) 3, Z=2, D c =1.32 g/cm 3, Mo Kα radiation, μ =9.00 cm -1 , F(000)=647.95, R =0.0316 for 4561 observed reflections with I≥3σ(I) . Pd(Ⅱ) is coordinated by two chloride atoms and two sulfur atoms of organic ligands, forming a rhombic quadrilateral plane with Pd-S of 2.325(1) and Pd-Cl of 2.295(1) .
文摘Chemical Department,Liaoning University,Shenyang110036)abstract:( 3 Chemistry Department,Northeast Normal University,Changchun130024)abstract:The mixed l igand complex[Pd(biqu)abstract:(pmal)abstract:]·H 2 O(where biqu is2,2’-biquinoline,pmal is phenethylmalonate)abstract:has been synthesi zed and its interaction with sperm DNA was determined by fluorescent spectra?UV -Vis spectra and CD-spectra.The binding constant(K b )abstract:of the complex and sperm DNA is1.26×10 4 and its interaction with pBR322plasmid DNA was also determined by gel electr ophoresis.The results show that the complex interact with DNA mainly by
