目的分析2例疑似中链酰基辅酶A脱氢酶缺乏症(MCADD)新生儿及其父母外周血基因突变检测结果.方法2例新生儿,采集足跟血采用串联质谱检测技术检测足跟血中链脂肪酸(氨基酸、有机酸和肉碱),进行遗传代谢病筛查.采集2例新生儿及其父母外周...目的分析2例疑似中链酰基辅酶A脱氢酶缺乏症(MCADD)新生儿及其父母外周血基因突变检测结果.方法2例新生儿,采集足跟血采用串联质谱检测技术检测足跟血中链脂肪酸(氨基酸、有机酸和肉碱),进行遗传代谢病筛查.采集2例新生儿及其父母外周血进行高通量、Sanger测序,分析其基因突变情况.结果2例新生儿均存在足跟血中链脂肪酸异常,其中链酰基肉碱C6~C10均升高,其中辛酰肉碱C8升高尤为明显,外周血辛酰基肉碱水平分别为2.34、2.95μmol/L,C8/C10比值分别为8.67、7.02.患儿1存在ACADM基因11号外显子c.1040G>T位点纯合突变;患儿1父母均为ACADM基因11号外显子c.1040G>T杂合突变.患儿2存在ACADM基因5号内含子c.387+1 del G和7号外显子c.587G>A位点复合杂合突变;患儿2父亲可见ACADM基因7号外显子c.587G>A突变,未见5号内含子c.387+1 del G突变;患儿2母亲可见ACADM基因5号内含子c.387+1 del G突变,未见7号外显子c.587G>A突变.2例患儿均确诊MCADD.结论2例MCADD患儿存在足跟血中链脂肪酸异常,其中C6~C10升高,C8升高更明显,均确诊MCADD.2例MCADD患儿的发病与ACADM基因有关,并遗传自父母.展开更多
The extraction of uranium ((Ⅵ) from nitric acid solution with N-octanoyl-2-methylpiperidine (OMPPD)in eight diluents and the dependence of distribution ratio on temperature and concentrations of both aqueous nitricac...The extraction of uranium ((Ⅵ) from nitric acid solution with N-octanoyl-2-methylpiperidine (OMPPD)in eight diluents and the dependence of distribution ratio on temperature and concentrations of both aqueous nitricacid and OMPPD were investigated. The interaction among OMPPD, the extracted species and diluent has been dis-cussed. The experiments show that the extraction ability of OMPPD decreases gradually for eight diluents in the fol-lowing order: benzene, toluene, n-octane, sulfonated kerosene, cyclohexane, carbon tetrachloride, 1,2-dichloroetheneand chloroform. It cannot be interpreted only on the basis of polarity of diluents.展开更多
Five caffeoyl conjugates were isolated from the ethyl acetate soluble fraction of Erigeron breviscapus (Van.) Hand_Mazz for the first time. Along with them, nine other chemical constituents were also identified. O...Five caffeoyl conjugates were isolated from the ethyl acetate soluble fraction of Erigeron breviscapus (Van.) Hand_Mazz for the first time. Along with them, nine other chemical constituents were also identified. One new caffeoyl conjugate, erigoster A (1) with a novel basic skeleton was mainly assigned by the using a combination of two_dimensional NMR techniques.展开更多
Extraction of uranium with N-octanoylpyrrolidine (OPOD) in sulfonated kerosene from aqueous nitric acid media has been studied. The dependence of the extraction distribution ratios on the concentrations of aqueous nit...Extraction of uranium with N-octanoylpyrrolidine (OPOD) in sulfonated kerosene from aqueous nitric acid media has been studied. The dependence of the extraction distribution ratios on the concentrations of aqueous nitric acid, extractant, salting-out agent and the temperature was investigated. The constitution of extracted complex was established, and the related thermodynamic functions were calculated.展开更多
文摘目的分析2例疑似中链酰基辅酶A脱氢酶缺乏症(MCADD)新生儿及其父母外周血基因突变检测结果.方法2例新生儿,采集足跟血采用串联质谱检测技术检测足跟血中链脂肪酸(氨基酸、有机酸和肉碱),进行遗传代谢病筛查.采集2例新生儿及其父母外周血进行高通量、Sanger测序,分析其基因突变情况.结果2例新生儿均存在足跟血中链脂肪酸异常,其中链酰基肉碱C6~C10均升高,其中辛酰肉碱C8升高尤为明显,外周血辛酰基肉碱水平分别为2.34、2.95μmol/L,C8/C10比值分别为8.67、7.02.患儿1存在ACADM基因11号外显子c.1040G>T位点纯合突变;患儿1父母均为ACADM基因11号外显子c.1040G>T杂合突变.患儿2存在ACADM基因5号内含子c.387+1 del G和7号外显子c.587G>A位点复合杂合突变;患儿2父亲可见ACADM基因7号外显子c.587G>A突变,未见5号内含子c.387+1 del G突变;患儿2母亲可见ACADM基因5号内含子c.387+1 del G突变,未见7号外显子c.587G>A突变.2例患儿均确诊MCADD.结论2例MCADD患儿存在足跟血中链脂肪酸异常,其中C6~C10升高,C8升高更明显,均确诊MCADD.2例MCADD患儿的发病与ACADM基因有关,并遗传自父母.
文摘The extraction of uranium ((Ⅵ) from nitric acid solution with N-octanoyl-2-methylpiperidine (OMPPD)in eight diluents and the dependence of distribution ratio on temperature and concentrations of both aqueous nitricacid and OMPPD were investigated. The interaction among OMPPD, the extracted species and diluent has been dis-cussed. The experiments show that the extraction ability of OMPPD decreases gradually for eight diluents in the fol-lowing order: benzene, toluene, n-octane, sulfonated kerosene, cyclohexane, carbon tetrachloride, 1,2-dichloroetheneand chloroform. It cannot be interpreted only on the basis of polarity of diluents.
文摘Five caffeoyl conjugates were isolated from the ethyl acetate soluble fraction of Erigeron breviscapus (Van.) Hand_Mazz for the first time. Along with them, nine other chemical constituents were also identified. One new caffeoyl conjugate, erigoster A (1) with a novel basic skeleton was mainly assigned by the using a combination of two_dimensional NMR techniques.
文摘Extraction of uranium with N-octanoylpyrrolidine (OPOD) in sulfonated kerosene from aqueous nitric acid media has been studied. The dependence of the extraction distribution ratios on the concentrations of aqueous nitric acid, extractant, salting-out agent and the temperature was investigated. The constitution of extracted complex was established, and the related thermodynamic functions were calculated.