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微卫星标记位点的分离及其在美洲剑线虫群体分类鉴定上的应用 被引量:1
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作者 沈培垠 李红梅 +1 位作者 heyu MauriceMoens 《检验检疫科学》 2004年第4期16-19,22,共5页
在美洲剑线虫群体 (Xiphinemaamericanumgroup)上 ,应用简并寡核苷酸引物聚合酶链式反应 (DOP -PCR)技术 ,克服了基因组DNA样本不足的难题 ,成功在微量基因组DNA条件下分离和标记了微卫星重复子 (Mi crosatellite)。研究中 ,目标DNA片... 在美洲剑线虫群体 (Xiphinemaamericanumgroup)上 ,应用简并寡核苷酸引物聚合酶链式反应 (DOP -PCR)技术 ,克服了基因组DNA样本不足的难题 ,成功在微量基因组DNA条件下分离和标记了微卫星重复子 (Mi crosatellite)。研究中 ,目标DNA片段被克隆前 ,DOP -PCR产物首先被连接到载体上 ,然后通过寡核苷酸 (CA) 9和载体上游引物 ,对包含微卫星位点的左侧DNA片段进行PCR扩增 ,该过程后的产物用于克隆和DNA序列分析 ;依据已分析的部分左侧序列 ,设计引物并与载体下游引物一起 ,对DOP -PCR产物再进行PCR扩增 ,使包含整个微卫星及其右侧连接部分被扩增 ,重复克隆和DNA序列分析并结合已分析的左侧序列 ,获得了包含全部微卫星重复子的DNA片段的完整序列。这种分离含微卫星标记位点DNA片段的路径新颖、高效 ,有效克隆率提高到了 93.3%。研究中 ,发现和分析了 9个包含微卫星重复子的片段 ,美洲剑线虫 (X .americanumsensustricto)和美洲剑线虫亚群组(X .americanumsubgroup)的标记性引物被设计和检测。 展开更多
关键词 微卫星标记 分离 美洲剑线虫群体 微卫星重复子 DOP-PCR 线形动物门
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CuZnAl Mixed Oxide Catalyst Prepared from Hydrotalcite-like Precursor for Catalytic Wet Oxidation of Phenol
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作者 SUNYing YANGMin +3 位作者 DOUHerui heyu WANGWei SUNChenglin 《催化学报》 SCIE CAS CSCD 北大核心 2003年第8期563-564,共2页
关键词 CUZNAL 铜锌铝复合氧化物 催化剂 制备 水滑石 催化反应 苯酚 氧化反应
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Relationship between Polymorphism of Estrogen Receptor α PvuⅡ and XbaⅠ Gene and Benign Positional Vertigo
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作者 WEIXueying LINYuchan +2 位作者 ZHANGAnni heyu ZHOUTengfei 《外文科技期刊数据库(文摘版)医药卫生》 2022年第11期069-072,共4页
Objective: this study mainly discussed the relationship between the polymorphism of PuvⅡ and XbaⅠ gene of estrogen α receptor and benign paroxysmal positional vertigo (BPPV). Methods: polymerase chain reaction-rest... Objective: this study mainly discussed the relationship between the polymorphism of PuvⅡ and XbaⅠ gene of estrogen α receptor and benign paroxysmal positional vertigo (BPPV). Methods: polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was used to analyze the genotypes of 40 patients with benign positional vertigo and 40 healthy people, and the gene polypeptide of PvuⅡ (RS4986938) and XbaⅠ (RS9340799) was detected. SPSS13.0 statistical software was used to analyze the correlation between gene polypeptide of PvuⅡ and XbaⅠ and BPPV. Results: 1. There are three genotypes of PVU ⅱ, namely Pp, pp, PP, and the distribution frequency of genotypes between BPPV group and control group is statistically significant (28.498, p0.014). The frequency of P gene in PvuⅡ allele is statistically significant (29.452, p0.02). 2. There are three genotypes in the restriction site of XbaⅠ. There is no significant difference in the distribution frequency of Xba Ⅰ genotype between BPPV group and control group (21.953, P 0.377). There was no significant difference in the frequencies of P and P genes in XbaⅠ allele between BPPV group and control group (22.020, p0.155). 3. There are 9 combined genotypes of ERα PvuⅡ and XbaⅠ. There was no significant difference between the two groups (21.953 p0.377, P > 0.05). 展开更多
关键词 estrogen receptor benign positional vertigo gene property PvuⅡ XbaⅠ
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Clinical Study on Sheqingyan Decoction in Treating 30 Cases of Acute Pharyngitis
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作者 XINHua XIUHaibo +2 位作者 XIETingting heyu ZHANGWeiwei 《外文科技期刊数据库(文摘版)医药卫生》 2022年第4期053-056,共4页
Objective: to explore the clinical efficacy of Sheshao Qingyan Decoction in treating 30 cases of acute pharyngitis. Methods: from March 2020 to January 2022, 30 patients with acute pharyngitis due to wind-heat syndrom... Objective: to explore the clinical efficacy of Sheshao Qingyan Decoction in treating 30 cases of acute pharyngitis. Methods: from March 2020 to January 2022, 30 patients with acute pharyngitis due to wind-heat syndrome were treated with Sheshao Qingyan Decoction in our hospital, and the clinical effect was observed and analyzed. Results: the total effective rate was 96.66%, and the incidence of adverse reactions was 3.33%. Conclusion: for acute pharyngitis patients with wind-heat syndrome, the application of Sheshao Qingyan Decoction can not only effectively improve the symptoms of patients to a certain extent, but also reduce the incidence of adverse reactions after treatment, so it is worthy of further clinical application. 展开更多
关键词 acute pharyngitis Chinese herbal medicine sheshao qingyan decoction clinical efficacy
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