目的探讨儿童支原体肺炎患儿降钙素原(PCT)、C反应蛋白(CRP)、T淋巴细胞亚群、免疫球蛋白的变化及临床意义,为患者的临床诊疗提供参考。方法选取2017年2月至2018年2月在西安交通大学附属红会医院就诊的90例支原体肺炎患儿作为观察组,其...目的探讨儿童支原体肺炎患儿降钙素原(PCT)、C反应蛋白(CRP)、T淋巴细胞亚群、免疫球蛋白的变化及临床意义,为患者的临床诊疗提供参考。方法选取2017年2月至2018年2月在西安交通大学附属红会医院就诊的90例支原体肺炎患儿作为观察组,其中大叶性肺炎40例,支气管肺炎50例;选择同期健康体检者90例作为对照组。测定并比较观察组和对照组以及观察组中大叶性肺炎与支气管肺炎患儿间的T淋巴细胞、免疫球蛋白A (IgA)、免疫球蛋白G (IgG)、免疫球蛋白M (IgM)、PCT、CRP水平。结果观察组和对照组受检者的CD4^+[(34.12±4.02)%vs (42.23±3.45)%]和CD8^+[(21.78±2.25)%vs (32.12±2.28)%]水平比较,观察组明显低于对照组,而CD4^+/CD8^+[(3.27±0.42) vs (1.82±0.39)]比较,观察组明显高于对照组,差异均有统计学意义(P<0.05);观察组和对照组受检者的IgA [(1.12±0.21) g/L vs (1.69±0.32) g/L]比较,观察组明显低于对照组;IgG [(14.78±2.45) g/L vs (10.21±1.21) g/L]、IgM [(2.45±0.37) g/L vs (1.62±0.29) g/L]比较,观察组明显高于对照组,差异均有统计学意义(P<0.05);观察组和对照组受检者的PCT [(0.56±0.12) ng/m L vs (0.23±0.06) ng/m L]和CRP [(25.12±5.11)μg/m L vs (6.12±1.26)μg/m L]水平比较,观察组明显高于对照组,差异均有统计学意义(P<0.05);大叶性肺炎患儿CD8^+、IgG、IgM、PCT、CRP的表达水平均明显高于支气管肺炎患儿,而CD4^+、CD4^+/CD8^+、IgA明显低于支气管肺炎患儿,差异均有统计学意义(P<0.05)。结论 T淋巴细胞亚群、免疫功能、PCT及CRP表达水平可准确了解患儿病情动态变化,在支原体肺炎患儿疾病的诊断、鉴别中有重要意义。展开更多
A study on liquid liquid extraction of cadmium based on KI ethanol in the presence of ammonium sulphate has been performed. It shows that the charged complex compound CdI 2- 4 could be easily extracted into the ethano...A study on liquid liquid extraction of cadmium based on KI ethanol in the presence of ammonium sulphate has been performed. It shows that the charged complex compound CdI 2- 4 could be easily extracted into the ethanol phase. Common ions such as Fe 3+ , Co 2+ , Ni 2+ , Mn 2+ , Zn 2+ , Al 3+ and Cr 3+ would not be extracted into the ethanol phase and Cd 2+ could be separated completely from them by mixture of 3.0 g (NH 4) 2SO 4 and 0.2 g KI in 10.0 mL 30%(volume fraction) ethanol solution at pH=1～5.展开更多
Mercury ion separation from another metal ions has been carried out in phase system consisted of propanol, NaCl and KI. The results showed that propanol could extract the associates formed by mercury with iodide. Hg(...Mercury ion separation from another metal ions has been carried out in phase system consisted of propanol, NaCl and KI. The results showed that propanol could extract the associates formed by mercury with iodide. Hg(Ⅱ) can be separated completely from Fe(Ⅲ), Co(Ⅱ), Mn(Ⅱ), Mo(Ⅵ) and Zn(Ⅱ) in solution system of pH=2.0.展开更多
V isualMODFLOW是目前最流行并被各国机构认可的三维地下水水流和溶质数值模拟评价的标准可视化专业软件.本文介绍了V isualModflow可视化三维地下水流动模拟软件的特点、软件构架、设计理论基础及模拟计算过程,探讨了应用中应注意的几...V isualMODFLOW是目前最流行并被各国机构认可的三维地下水水流和溶质数值模拟评价的标准可视化专业软件.本文介绍了V isualModflow可视化三维地下水流动模拟软件的特点、软件构架、设计理论基础及模拟计算过程,探讨了应用中应注意的几个问题.展开更多
文摘目的探讨儿童支原体肺炎患儿降钙素原(PCT)、C反应蛋白(CRP)、T淋巴细胞亚群、免疫球蛋白的变化及临床意义,为患者的临床诊疗提供参考。方法选取2017年2月至2018年2月在西安交通大学附属红会医院就诊的90例支原体肺炎患儿作为观察组,其中大叶性肺炎40例,支气管肺炎50例;选择同期健康体检者90例作为对照组。测定并比较观察组和对照组以及观察组中大叶性肺炎与支气管肺炎患儿间的T淋巴细胞、免疫球蛋白A (IgA)、免疫球蛋白G (IgG)、免疫球蛋白M (IgM)、PCT、CRP水平。结果观察组和对照组受检者的CD4^+[(34.12±4.02)%vs (42.23±3.45)%]和CD8^+[(21.78±2.25)%vs (32.12±2.28)%]水平比较,观察组明显低于对照组,而CD4^+/CD8^+[(3.27±0.42) vs (1.82±0.39)]比较,观察组明显高于对照组,差异均有统计学意义(P<0.05);观察组和对照组受检者的IgA [(1.12±0.21) g/L vs (1.69±0.32) g/L]比较,观察组明显低于对照组;IgG [(14.78±2.45) g/L vs (10.21±1.21) g/L]、IgM [(2.45±0.37) g/L vs (1.62±0.29) g/L]比较,观察组明显高于对照组,差异均有统计学意义(P<0.05);观察组和对照组受检者的PCT [(0.56±0.12) ng/m L vs (0.23±0.06) ng/m L]和CRP [(25.12±5.11)μg/m L vs (6.12±1.26)μg/m L]水平比较,观察组明显高于对照组,差异均有统计学意义(P<0.05);大叶性肺炎患儿CD8^+、IgG、IgM、PCT、CRP的表达水平均明显高于支气管肺炎患儿,而CD4^+、CD4^+/CD8^+、IgA明显低于支气管肺炎患儿,差异均有统计学意义(P<0.05)。结论 T淋巴细胞亚群、免疫功能、PCT及CRP表达水平可准确了解患儿病情动态变化,在支原体肺炎患儿疾病的诊断、鉴别中有重要意义。
文摘A study on liquid liquid extraction of cadmium based on KI ethanol in the presence of ammonium sulphate has been performed. It shows that the charged complex compound CdI 2- 4 could be easily extracted into the ethanol phase. Common ions such as Fe 3+ , Co 2+ , Ni 2+ , Mn 2+ , Zn 2+ , Al 3+ and Cr 3+ would not be extracted into the ethanol phase and Cd 2+ could be separated completely from them by mixture of 3.0 g (NH 4) 2SO 4 and 0.2 g KI in 10.0 mL 30%(volume fraction) ethanol solution at pH=1～5.
文摘Mercury ion separation from another metal ions has been carried out in phase system consisted of propanol, NaCl and KI. The results showed that propanol could extract the associates formed by mercury with iodide. Hg(Ⅱ) can be separated completely from Fe(Ⅲ), Co(Ⅱ), Mn(Ⅱ), Mo(Ⅵ) and Zn(Ⅱ) in solution system of pH=2.0.
