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寡核苷酸芯片

寡核苷酸芯片的相关文献在2001年到2022年内共计173篇,主要集中在肿瘤学、分子生物学、基础医学 等领域,其中期刊论文139篇、会议论文9篇、专利文献234140篇;相关期刊103种,包括生物工程学报、生物化学与生物物理进展、生物技术通报等; 相关会议9种,包括福建省第八届猪病学术研讨会、中国畜牧兽医学会动物传染病学分会第四次猪病学术研讨会、第二届中国生物产业大会等;寡核苷酸芯片的相关文献由546位作者贡献,包括王升启、韩金祥、丁雨等。

寡核苷酸芯片—发文量

期刊论文>

论文:139 占比:0.06%

会议论文>

论文:9 占比:0.00%

专利文献>

论文:234140 占比:99.94%

总计:234288篇

寡核苷酸芯片—发文趋势图

寡核苷酸芯片

-研究学者

  • 王升启
  • 韩金祥
  • 丁雨
  • 李瑶
  • 陈苏红
  • 马文丽
  • 文思远
  • 杨玉秀
  • 郑文岭
  • 鲁艳芹
  • 期刊论文
  • 会议论文
  • 专利文献

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    • 王小强; 袁军; 韩锐郡; 营思思
    • 摘要: A new method that combined universal primer-multiplex asymmetric PCR and oligonucleotide microarray technology was developed for the simultaneous detection of seven common foodbome pathogens including Listeria monocytogenes,Salmonella,E.coli O157:H7,Staphylococcus aureus,Yersinia enterocolitica,Vibrio parahaemolyticu and a standard strain of Escherichia coli.The 5'-end of forward or reverse primer specific to each pathogen was linked with a non-homologous common sequence.Target fragments of all seven pathogens were enriched and labeled simultaneously by one-step multiplex asymmetric PCR using the Cy3-1abeled common sequence as the universal primer.The labeled single-stranded amplicons were captured by the specific oligonucleotide probes immobilized on microarrays,followed by microarray scanning and analysis of fluorescence signal intensity.The results for reference strains indicated that the assay could unambiguously discriminate all seven pathogens in single and multiple infections,and it had a detection sensitivity of 0.1-1 pg of genomic DNA.Ninety-five artificially contaminated samples and retail food samples were tested by this assay,and the results agreed with those obtained with traditional culture methods and real-time PCR.This developed oligonucleotide microarray assay can provide a useful method for rapid,specific,sensitive and high-throughput detection of foodbome pathogens.%应用通用多重不对称聚合酶链式反应(polymerase chain reaction,PCR)和寡核酸芯片技术建立一种同时检测7种常见食源性致病菌的方法.每种致病菌上游或下游引物5'端连接一段异源的共有序列.以荧光标记的该共有序列作为通用引物,与限制性特异引物经一步多重不对称PCR同时获得所有目标菌的单链标记靶序列,可被芯片上固定的特异性寡核苷酸探针捕获.通过芯片扫描、分析荧光信号完成检测.标准菌株检测结果证实,该方法可特异地检测单一和混合感染的目标菌,基因组DNA的检测灵敏度为0.1~1 pg.95份模拟污染和零售食品样本芯片检测结果与常规的分离与生化鉴定及荧光定量PCR结果一致.建立的寡核苷酸芯片方法可为快速、特异、灵敏及高通量地鉴定食源性致病菌提供一种有效的检测手段.
    • 叶映泉; 朱忠政; 王亮亮; 鲍玲玲; 丛文铭; 闻炳基
    • 摘要: Objective To detect the differentially expressed Wnt signaling pathway genes in hepatocellular carcinoma ( HCC) , and investigate the relationship between HCC and Wnt signaling pathway. Methods The expression levels of 78 genes relat-ed Wnt signaling pathway were measured using Affymetrix GeneChip Human Genome U133 Plus 2. 0 array in 93 cases of HCC tissues and paired non-tumor liver tissues. Results A total of 10 up-regulated genes ( TCF19, MMP-12, DKK1, Bcl-9, SFRP4, MMP-1, PYGO2, FZD6, MMP-9 and Wnt6) , and 5 down-regulated genes ( SFRP1, TCF21, SFRP5, FZD1 and Wnt2) were identified to be significantly differentially expressed in HCC tissues, compared with paired non-tumor liver tissues. The expression level of TCF19, the most over-expressed gene in this series (fold change=9. 61, P=1. 07×10-26), was significantly correlated with FZD1, FZD6, Bcl-9, Wnt6, MMP-1 and MMP-12 ( P<0. 05) . The expression of TCF19 was significantly associated with the number of tumor ( P=0. 017) and Edmondson-Steiner grade ( P=0. 046) . Conclusion Multiple differentially expressed genes in Wnt signaling pathway in HCC are screened. Increased expression of TCF19, a downstream transcription factor, may be the key terminal effect of the Wnt signaling path-way activation, and its biological and pathological significance in HCC merits further investigations.%目的 检测肝细胞癌(HCC)中Wnt信号传导通路相关基因的差异表达情况,探讨HCC与该信号通路的关系.方法 采用Affymetrix U133 Plus2.0基因芯片检测93例HCC及其配对癌旁组织中78个Wnt信号通路相关基因的mRNA表达差异.结果 与癌旁肝组织相比,HCC组织中TCF19、MMP-12、DKK1、Bcl-9、SFRP4、MMP-1、PYGO2、FZD6、MMP-9、Wnt6共10个基因表达上调,而SFRP1、TCF21、SFRP5、FZD1、Wnt2共5个基因表达下调.其中,TCF19表达上调倍数最多,达9.61倍(P=1.07×10-26).TCF19表达与FZD1、FZD6、Bcl-9、Wnt6、MMP-1和MMP-12表达呈正相关(均P<0.05).TCF19表达与肿瘤数目(P=0.017)和分化程度(P=0.046)有关.结论 HCC中存在Wnt信号通路多基因异常表达.下游转录因子TCF19高表达可能是Wnt信号通路激活的关键终末效应,其在HCC中的生物学和病理学意义有待进一步研究.
    • 付静静
    • 摘要: 本文对基因芯片包括cDNA芯片和寡核苷酸芯片等在乳腺癌研究中的应用做一综述,包括预测乳腺癌对化疗的敏感性、对单抗联合化疗治疗的敏感性及其他方面的应用。
    • 孙恒文; 胡义德; 曾子君; 潘燚; 方良毅; 谭佩欣; 曾向伟
    • 摘要: 研制人线粒体 DNA(mitochondrial DNA,mtDNA)表达谱芯片,鉴定芯片的特异性和稳定性,完善芯片的制备和使用程序,优化实验参数,为线粒体功能研究提供物质基础及技术保障。以人 mtDNA 剑桥序列为标准,设计 mtDNA 编码的13种 mRNA、2种 rRNA 和9种 tRNA 基因及蛋白产物定位于线粒体的核 DNA (nDNA)编码的5种凋亡相关基因寡核苷酸探针。芯片点样仪点制芯片,进行荧光显示和洗脱,用其检测人宫颈癌上皮 Hela 细胞和人肾小管上皮 Hc1细胞 cDNA 文库 mtDNA 编码基因及 nDNA 编码凋亡相关基因的差异表达情况。所点制的芯片扫描结果显示,样点分布均匀、清晰,规整度好,无漏点、连点。cDNA 文库杂交鉴定结果显示,整张芯片荧光信号均匀一致,背景清晰,各基因重复样点杂交结果一致,各质控点能正常显示。成功制备了人 mtDNA 基因表达谱芯片,完善了该芯片的制备和使用程序,通过初步应用,证明所研制的人 mtDNA 基因表达谱芯片具有特异性高、稳定性好等优点,可用于不同组织或细胞样本 cDNA 文库 mtDNA基因的差异表达分析。%To manufacture and identificate the expressing microarray of human mtDNA genes.In the process of conformation,the specificity and stability of the new microarray were evaluated,the procedure of preparing and applying of the new microarray were con-summated,and the experimental parameter were optimised to provide the substance support and technology guarantee for the function research of mitochondrial genome.Design of the oligonucleotide probes of 13 mRNA、2 rRNA、9 tRNA encoded by mtDNA was based on the mtDNA Cambridge Sequence,and the oligonucleotide probes of 5 apoptosis related genes encoded by nuclear genome was based on the database of Genebank.The microarray was printed with microarray robots.Fluorescence background manifest and deletion were ac-cording to the standard process.The primary microarray was firstly used to detect the differential expressions of mtDNA genes and apop-tosis related genes between cDNA library of human cervix epithelia carcinoma cell line Hela and human renal tubule epithelia cell line Hc1.The printed spots on the primary microarray show distinct and regular on the scanned imagine,and the background of the slides is nearly undetected.The hybridized imagine of cDNA library from cell lines show a good quality in size and color contrast.Twenty mini -blocks are printed in the first round.
    • 张雪峰
    • 摘要: Targeting to DNA, preparation of oligonucleotide microarray for the bacteria to be detected under hybridization conditions were found, and then re-establishment of oligonucleotide microarray, to judge by similarity of the results of sample types. Using universal primers SUA and G07B in the detection after ampliifcation and label involved more than 40 more for different species and genus of blend modes, increase their ability to distinguish between each other, as when there are multiple strains can also be detected in a sample and provide the basis for the clinical diagnosis. The detection technology is a good value.%本文以DNA为靶标,针对待检细菌制备寡核苷酸芯片,根据杂交条件进行摸索,然后重新确立寡核苷酸芯片,通过结果的相似性来判断样本的种类。检测中利用通用引物SUA和GO7B对涉及40多个进行扩增和标记后,针对不同的种、属的混合模式,增加它们相互之间的分辨能力,同样样品中存在多个菌种时也可检测出来,并为临床诊断提供依据。综合比较,该项检测技术具有良好的使用价值。
    • 尚欣欣
    • 摘要: 目的:浅析肠杆菌科食源性感染常见致病菌的快速检测方法。方法:采用带有正电荷的尼龙膜作为寡核苷酸芯片的载体,利用寡核苷酸芯片的技术进行肠杆菌刻食源性感染常见致病菌的检验方法进行检测。结果:在同样的条件下,可以检测到多种细菌的的基因突显。结论:寡核苷酸芯片技术可以作为快速检测肠杆菌常见致病菌的有效方法之一,可以快速诊断并预防食源性感染病菌。
    • 张永江; 辛言言; 朱水芳; 李世访
    • 摘要: 苹果锈果类病毒属是重要的植物类病毒属,目前尚无有效的筛查方法.通过对该属类病毒的核苷酸序列进行分析筛选,设计了35条用于该属类病毒筛查的属级特异性探针并制备了寡核苷酸芯片.应用苹果锈果类病毒及柑橘矮化类病毒标准样品对该芯片进行验证,结果表明所建立的属级芯片可以获得有效的杂交信号,其灵敏度与RT-PCR电泳法相当.该芯片可用于苹果锈果类病毒属类病毒的筛查,为该属类病毒的检疫与防控提供技术支撑.
    • 陈圣军; 孔繁德; 徐淑菲; 张吉红; 唐泰山
    • 摘要: 为建立牛传染性鼻气管炎病毒(IBRV)和赤羽病病毒(AKAV)的双重快速检测方法,本研究根据IBRVgB基因和AKAV S基因序列设计合成了2对特异引物和探针,建立了同时检测这两种病毒的基因芯片检测方法,即以合成探针的5’端添加poly T 10尾并氨基化固定于经处理的玻璃基片表面作为捕捉序列,采用荧光素Cy3标记正向引物的5’端,对样品的PCR扩增产物进行检测,并通过试验确定其适宜杂交温度为38°C.该方法检测IBRV和AKAV重组质粒的灵敏度分别为3.6×103拷贝/25μL和9.26×104拷贝/25 μL,同时通过对牛的腺病毒、牛病毒性腹泻病毒、牛水泡性口炎病毒、口蹄疫病毒及牛白血病病毒等的检测均无交叉反应,表明其特异性强.该检测方法的建立对于加强进出口牛的IBRV和AKAV检验检疫具有十分重要的意义.
    • 付静静
    • 摘要: 本文根据文献对基因芯片在乳腺癌组织与正常乳腺组织的差异研究、乳腺癌分型与分期、乳腺癌预后预测、高转移性与低转移性乳腺癌的差异研究、乳腺癌细胞表面ER、Her2表达状况判断方面的应用做一综述.
    • 杨昊; 张帆; 张笋华; 陈伟华; 徐栋
    • 摘要: Objective: To compare the oligonucleotide chip, real-time PCR and sequencing for genotyping of hepatitis B virus in Chinese patients with chronic hepatitis B. Methods: Clinical serum samples with different hepatitis B virus genotype from 126 chronic hepatitis B patients were tested for hepatitis B virus genotypes by oligonucleotide chip, real-time PCR and sequencing of PCR products, respectively. Then, clinical performances, time required and costs of the three assays were evaluated. Results: Oligonucleotide chips and real-time PCR can detect 1 % and 0.1 % genotypes, respectively, in mixed samples. In the 126 clinical samples from patients with chronic hepatitis B, genotype B was detected in 41 (33 %), 41 (33 %) and 45 (36 %) samples, and genotype C in 76 (60 %), 76 (60 %) and 81 (64 %) samples, by oligonucleotide chip, real-time PCR and sequencing, respectively. Oligonucleotide chip and real-time PCR detected mixed genotypes B and C in 9 samples. Realtime PCR was the rapidest and cheapest method among the three assays. Conclusions: Oligonucleotide Chip and real-time PCR are able to detect mixed genotypes, while sequencing only detects the dominant genotype in clinical samples.%目的:比较寡核苷酸芯片法、实时荧光PCR和测序法在对慢性乙肝患者病毒基因分型的比较和方法学评价.方法:对126例不同基因型的慢性乙肝患者的血清样本分别用寡核苷酸芯片法、实时荧光PCR法和测序法进行基因分型,并评价各种方法的临床表现、所需时间和检测成本.结果:寡核苷酸芯片法、实时荧光PCR分别能检测到1%和0.1%比例的基因型.在126例慢性乙肝患者的临床样本中,寡核苷酸芯片法、实时荧光PCR和测序法分别检测出41(33%)、41(33%)和45(36%)例为B型,76(60%)、76(60%)、81(64%)例为C型.寡核苷酸芯片法、实时荧光PCR均检出9例B、C混合基因型.在三种检测方法中实时荧光PCR是最快速和廉价的.结论:寡核苷酸芯片法、实时荧光PCR能检出B、C混合基因型,而测序法只能检测出样本的主导基因型.
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