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儿童腹型过敏性紫癜发生消化道出血的危险因素分析 被引量:16
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作者 黄志宇 唐清 +4 位作者 云翔 黄丽 陈秀奇 杨梅雄 单庆文 《广西医学》 CAS 2018年第9期1004-1008,共5页
目的探讨儿童过敏性紫癜(HSP)发生消化道出血的危险因素。方法回顾性分析172例腹型HSP患儿的临床资料,根据有无消化道出血表现分为出血组77例和非出血组95例,比较两组的一般临床特征、临床症状及体征、辅助检查结果,采用多因素logistic... 目的探讨儿童过敏性紫癜(HSP)发生消化道出血的危险因素。方法回顾性分析172例腹型HSP患儿的临床资料,根据有无消化道出血表现分为出血组77例和非出血组95例,比较两组的一般临床特征、临床症状及体征、辅助检查结果,采用多因素logistic模型分析腹型HSP患儿发生消化道出血的危险因素。结果出血组发生呕吐者、消化道症状早于皮疹者、重度及特重度皮疹分布者比例均高于非出血组(均P<0.05);出血组的WBC计数高于非出血组,而淋巴细胞比例低于非出血组(均P<0.05)。呕吐是腹型HSP患儿发生消化道出血的危险因素(P<0.05)。结论出现呕吐的腹型HSP患儿更易发生消化道出血,而皮疹和消化道症状的出现顺序、皮疹分布程度、WBC及淋巴细胞比例也是影响腹型HSP患儿发生消化道出血不可忽视的因素。 展开更多
关键词 过敏性紫癜 腹型 消化道出血 危险因素 儿童
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Cloning, Sequencing and Phylogenetic Study of rbcL Gene from Cyanobacteria Arthrospira and Spirulina 被引量:2
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作者 刘金姐 Zhang +6 位作者 Xuecheng Sui Zhenghong Mao yunxiang SUN Xue 《High Technology Letters》 EI CAS 2004年第1期76-79,共4页
Large subunit gene of rubisco (rbcL) of cyanobacteria Arthrospira platensis FACHB341, A. Platensis FACHB439, A. Maxima OUQDSM and Spirulina sp. FACHB440 is cloned, sequenced and characterized. Results show that GC con... Large subunit gene of rubisco (rbcL) of cyanobacteria Arthrospira platensis FACHB341, A. Platensis FACHB439, A. Maxima OUQDSM and Spirulina sp. FACHB440 is cloned, sequenced and characterized. Results show that GC content of the gene in strain Spirulina sp. FACHB440 is higher than that in the others. The alignments based on deduced amino acid sequences indicate that Spirulina sp. FACHB440 is different from that in other three samples of Arthrospira, though they have the same conserved functional sites (95, 98, 121, 124, 221, 257). The nucleotide sequence similarity among the three strains of the genus of Arthrospira (96.5~99.6%) is higher than that between Arthrospira and Spirulina (78.1~78.5%). By comparison of the corresponding sequence of other cyanobacteria, a phylogenetic tree with two clusters is constructed. A. Platensis FACHB341, A. Maxima OUQDSM and A. Platensis FACHB439 form the monophyletic linage, which is fully supported by bootstrap values (1000), while Spirulina sp. FACHB440 and Anabaena sp. PCC7120 cluster in another linage with the bootstrap value of 909. 展开更多
关键词 蓝藻细菌 基因克隆 基因序列 系统发生学 螺旋藻 氨基酸
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MS/MS Study of Deoxydinucleotides Bound with Alkali-metal Ions Using ESI-MS 被引量:1
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作者 LiJunLi ZeperABLIZ +1 位作者 MitsuoTAKAYAMA yunxiang 《Chinese Chemical Letters》 SCIE CAS CSCD 2003年第5期499-502,共4页
Positive ion ESI-MS has been used to examine the fragmentation pathways of the complex ions of deoxydinucleotides with H+, Na+, K+ by LCQ instrument. It had been found that the dissociation varied markedly due to the... Positive ion ESI-MS has been used to examine the fragmentation pathways of the complex ions of deoxydinucleotides with H+, Na+, K+ by LCQ instrument. It had been found that the dissociation varied markedly due to the differences of the base sequence. The alkali-metal ion binding site and the characterization of dissociation were directed by the size of metal ion, the sequence of base and the steric hindrance. 展开更多
关键词 MS/MS deoxydinucleotides complex ions.
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