目的评估宫腔镜治疗慢性肾功能不全合并异常子宫出血患者的有效性及安全性。方法选择2011年1月至2017年1月于中国医科大学附属盛京医院行宫腔镜治疗慢性肾功能不全合并异常子宫出血患者35例,年龄41～67岁,平均年龄54.4岁。根据肾功能不...目的评估宫腔镜治疗慢性肾功能不全合并异常子宫出血患者的有效性及安全性。方法选择2011年1月至2017年1月于中国医科大学附属盛京医院行宫腔镜治疗慢性肾功能不全合并异常子宫出血患者35例,年龄41～67岁,平均年龄54.4岁。根据肾功能不全分期标准,肾功能不全代偿期18例,肾功能不全失代偿期3例,肾衰竭期4例,尿毒症期10例。对所有患者引起异常子宫出血的病因进行分类,比较治疗前后异常子宫出血改善、贫血纠正情况及对肾功能影响。结果术前、术后患者血清肌酐水平比较[(392.08±357.08)μmol/L vs (380.31±337.50)μmol/L],差异无统计学意义(P> 0.05)。治疗前后血红蛋白及红细胞压积比较[(102.80±23.28) g/L vs (96.86±19.75) g/L、(30.93±7.29)%vs(29.16±6.15)%],差异有统计学意义(P <0.05)。术后1个月随访发现,1例患者再次出现异常子宫出血,考虑为合并子宫腺肌症所致;失访4例;其余患者均明显好转。宫腔镜治疗慢性肾功能不全合并异常子宫出血好转率为96.77%。结论肾功能处于任何程度,宫腔镜治疗对患者肾功能均无影响。宫腔镜治疗慢性肾功能不全合并异常子宫出血患者是安全、有效的。但对于较为严重的子宫腺肌症患者应慎重选择。展开更多
Hollow calcium carbonate（CaCO3） microspheres with different morphologies were synthesized via the precipitation reaction of calcium chloride with sodium carbonate in the presence of different surfactant-polymer comp...Hollow calcium carbonate（CaCO3） microspheres with different morphologies were synthesized via the precipitation reaction of calcium chloride with sodium carbonate in the presence of different surfactant-polymer complexes.The selected anionic surfactants were sodium dodecyl sulfonate（SDS） and sodium dodecyl benzenesulfonate（SDBS）,respectively.The selected water-soluble polymers were polyacrylic acid（PAA） and polyvinyl pyrrolidone（PVP）.In this work,SDS-PVP ＂pearl-necklace model＂ micellar complex was formed via hydrophobic effectiveness between SDS and PVP and it served as the spherical template to generate spherical CaCO3 aggregates with hollow microspheres composed of about 500 nm irregular shaped particles.SDS-PAA complexes and SDBS-PAA complexes formed ＂core-shell model＂ aggregates with calcium ions serving as the medium to link the anionic surfactant and the polymer.SDS-PAA ＂core-shell model＂ aggregates would act as templates for hollow CaCO3 microspheres consisting of 30―50nm irregular shaped crystallites.SDBS-PAA ＂core-shell model＂ aggregates served as the spherical aggregate templates to generate spherical CaCO3 aggregates consisted of many small spherical particles which had grown together.All the obtained CaCO3 hollow microspheres are calcite particles.This research may provide new insight into the control of morphologies of hollow CaCO3 microspheres in the presence of surfactantpolymer complexes.展开更多
Syntheses of zince oxide（ZnO） nanoparticles by direct precipitation and surface modification with oleic acid were reported. ZnO nanoparticles were characterized via X-ray diffractometry（XRD）, transmission electron...Syntheses of zince oxide（ZnO） nanoparticles by direct precipitation and surface modification with oleic acid were reported. ZnO nanoparticles were characterized via X-ray diffractometry（XRD）, transmission electron microscopy（TEM）, infrared spectroscopy（IR） and UV-Vis spectroscopy. The prepared ZnO nanoparticles were nearly spherical and highly crystalline with an average size of 29 nm. In addition, high UV-light absorption properties of oleic acid surface modified ZnO nanoparticles were successfully obtained for a dispersion of ZnO nanoparticles in ethanol.展开更多
文摘目的评估宫腔镜治疗慢性肾功能不全合并异常子宫出血患者的有效性及安全性。方法选择2011年1月至2017年1月于中国医科大学附属盛京医院行宫腔镜治疗慢性肾功能不全合并异常子宫出血患者35例,年龄41～67岁,平均年龄54.4岁。根据肾功能不全分期标准,肾功能不全代偿期18例,肾功能不全失代偿期3例,肾衰竭期4例,尿毒症期10例。对所有患者引起异常子宫出血的病因进行分类,比较治疗前后异常子宫出血改善、贫血纠正情况及对肾功能影响。结果术前、术后患者血清肌酐水平比较[(392.08±357.08)μmol/L vs (380.31±337.50)μmol/L],差异无统计学意义(P> 0.05)。治疗前后血红蛋白及红细胞压积比较[(102.80±23.28) g/L vs (96.86±19.75) g/L、(30.93±7.29)%vs(29.16±6.15)%],差异有统计学意义(P <0.05)。术后1个月随访发现,1例患者再次出现异常子宫出血,考虑为合并子宫腺肌症所致;失访4例;其余患者均明显好转。宫腔镜治疗慢性肾功能不全合并异常子宫出血好转率为96.77%。结论肾功能处于任何程度,宫腔镜治疗对患者肾功能均无影响。宫腔镜治疗慢性肾功能不全合并异常子宫出血患者是安全、有效的。但对于较为严重的子宫腺肌症患者应慎重选择。
基金Supported by the National Natural Science Foundation of China(Nos.20771030,20671025)
文摘Hollow calcium carbonate（CaCO3） microspheres with different morphologies were synthesized via the precipitation reaction of calcium chloride with sodium carbonate in the presence of different surfactant-polymer complexes.The selected anionic surfactants were sodium dodecyl sulfonate（SDS） and sodium dodecyl benzenesulfonate（SDBS）,respectively.The selected water-soluble polymers were polyacrylic acid（PAA） and polyvinyl pyrrolidone（PVP）.In this work,SDS-PVP ＂pearl-necklace model＂ micellar complex was formed via hydrophobic effectiveness between SDS and PVP and it served as the spherical template to generate spherical CaCO3 aggregates with hollow microspheres composed of about 500 nm irregular shaped particles.SDS-PAA complexes and SDBS-PAA complexes formed ＂core-shell model＂ aggregates with calcium ions serving as the medium to link the anionic surfactant and the polymer.SDS-PAA ＂core-shell model＂ aggregates would act as templates for hollow CaCO3 microspheres consisting of 30―50nm irregular shaped crystallites.SDBS-PAA ＂core-shell model＂ aggregates served as the spherical aggregate templates to generate spherical CaCO3 aggregates consisted of many small spherical particles which had grown together.All the obtained CaCO3 hollow microspheres are calcite particles.This research may provide new insight into the control of morphologies of hollow CaCO3 microspheres in the presence of surfactantpolymer complexes.
基金Supported by the Key Project of the National Eleventh Five-Year Research Programe of China(No.2008BAE66B00)
文摘Syntheses of zince oxide（ZnO） nanoparticles by direct precipitation and surface modification with oleic acid were reported. ZnO nanoparticles were characterized via X-ray diffractometry（XRD）, transmission electron microscopy（TEM）, infrared spectroscopy（IR） and UV-Vis spectroscopy. The prepared ZnO nanoparticles were nearly spherical and highly crystalline with an average size of 29 nm. In addition, high UV-light absorption properties of oleic acid surface modified ZnO nanoparticles were successfully obtained for a dispersion of ZnO nanoparticles in ethanol.
