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pubmed-article:18316033pubmed:dateCreated2008-4-15lld:pubmed
pubmed-article:18316033pubmed:abstractTextMicroRNAs are important posttranscriptional regulators of gene expression in animals and plants. A sensitive and specific detection method is urgently needed for intensive studies on differential expression and regulatory roles of microRNA. Here we present a simple and reliable method for the quantification of microRNA. The hybridization products of target microRNA with capture probe and gold nanoparticle probe are immobilized onto the surface of a streptavidin-coated microplate, and the signal is amplified by silver enhancement. Distribution of miR-122a/miR-128 in mouse brain and liver tissue was detected by this method, and synthetic miRNA122a was quantified. This method allowed a lower detect limit of 10 fM with a linear dynamic range from 10 pM to 10 fM and a high specificity to discriminate one single oligonucleotide mismatch of the target microRNA.lld:pubmed
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pubmed-article:18316033pubmed:statusMEDLINElld:pubmed
pubmed-article:18316033pubmed:monthMaylld:pubmed
pubmed-article:18316033pubmed:issn1096-0309lld:pubmed
pubmed-article:18316033pubmed:authorpubmed-author:RamS BSBlld:pubmed
pubmed-article:18316033pubmed:authorpubmed-author:ZhengHaoHlld:pubmed
pubmed-article:18316033pubmed:authorpubmed-author:MiaoLiLlld:pubmed
pubmed-article:18316033pubmed:authorpubmed-author:XuShun-QingSQlld:pubmed
pubmed-article:18316033pubmed:authorpubmed-author:LiYuan-YuanYYlld:pubmed
pubmed-article:18316033pubmed:authorpubmed-author:ChenTianTlld:pubmed
pubmed-article:18316033pubmed:authorpubmed-author:LiXiao-BoXBlld:pubmed
pubmed-article:18316033pubmed:authorpubmed-author:YangWen-JieWJlld:pubmed
pubmed-article:18316033pubmed:authorpubmed-author:ZhaoLi-FanLFlld:pubmed
pubmed-article:18316033pubmed:authorpubmed-author:HeWen-LeiWLlld:pubmed
pubmed-article:18316033pubmed:authorpubmed-author:GaoYu-QiuYQlld:pubmed
pubmed-article:18316033pubmed:authorpubmed-author:WanYan-JianYJlld:pubmed
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pubmed-article:18316033pubmed:pagination183-8lld:pubmed
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pubmed-article:18316033pubmed:year2008lld:pubmed
pubmed-article:18316033pubmed:articleTitleQuantification of microRNA by gold nanoparticle probes.lld:pubmed
pubmed-article:18316033pubmed:affiliationMOE Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, wuhan 430030, China.lld:pubmed
pubmed-article:18316033pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:18316033pubmed:publicationTypeResearch Support, Non-U.S. Gov'tlld:pubmed