WGA

妙用病毒载体开展环路示踪工作

神经元之间的环路连接非常复杂，完整而准确地显示这些环路的结构和变化，对揭示许多疾病的病因和新治疗方法的开发具有非常重要的意义。传统的神经示踪方法如电镜、Golgi染色、染料、肽类标记物等可以显示神经元的形态和投射，少数示踪剂如WGA、TTC等还可以实现跨突触标记，但这些方法都具有信号间接、方向不特异、跨突触后信号衰减严重等缺点，最重要的是，这些染料无法携带基因，因此只能显色。自20世纪80年代，Kristensson首次应用单纯疱疹病毒（HSV）跨突触标记神经元后，各种各样病毒载体在环路示踪

Whole genome amplification protocol for ChIP-chip

to a genomic tiling array. Therefore, we have adapted the standard protocol for whole genome amplification using the Sigma GenomePlex WGA kit to amplify our ChIP sample (O'Geen et al., 2006). Using Oct4 ChIP-chip assays as an example, we have compared

Profiling DNA Methylation from Small Amounts of Genomic DNA Starting Material: Efficient Sodium Bisulfite Conversion and Subsequent Whole-Genome Ampli

conversion method followed by whole-genome amplification (WGA). WGA is a useful method to overcome the problem of low initial amount of DNA and/or severe DNA degradation during conventional sodium bisulfite treatment in studies investigating DNA methylation