查询词典 methylation

Pyrolytic methylation of G. biloba leaves in the injector at 300℃ in the presence of an organic alkali, tetramethylammonium hydroxide (TMAH, 25% methanol), allowed quantitative analysis of ginkgolic acids as their corresponding methyl derivatives.

银杏叶样品与衍生化试剂四甲基氢氧化铵（TMAH，25%甲醇溶液）同时进样，在300℃的进样口瞬间生成了银杏酸甲基衍生物，银杏叶中6种银杏酸得到很好的分离。

DNA methylation on CpGs constitutes an epigenetic mark generally correlated with transcriptionally silent condensed chromatin.

DNA序列中CpGs结构的甲基化对表观遗传的调节具有显著作用，它可以使染色体转录沉默。

SAMe actually donates a part of itself to form these new compounds through a process called methylation or transmethylation.

其实捐出了自己的一部分一样，形成新化合物或转移的过程称为甲基化。

DNA methylation is essential for silencing transposable elements and some genes in higher eukaryotes, which suggests that this modification must be tightly controlled.

DNA甲基化对于沉默的转座因子和真核细胞的某些基因是必不可少的，这表示DNA甲基化这一过程必须受到严格的控制。

Different opinions about the origination of somaclonal variation, which is a very common phenomenon in plant tissue culture, exist, such as the activation of transposable elements and DNA methylation.

植物体细胞无性系变异是植物组织培养中的普遍现象，关于这些变异的起源存在多种观点，如转座因子的活化、DNA甲基化等。

One role of DNA methylation is to turn off repetitive genes, such as transposable elements that can move or spread throughout a genome and disrupt other gene functions if left unchecked.

DNA甲基化的一个作用就是关闭一些重复的基因，例如一些在不加抑制的情况下能转移或者延伸到基因组的其他地方去阻断基因的转座子。

Then we compared cleavage rate and blastocyst rate among different groups. After that we evaluated the quality of blastocysts by using ICM/TE (Inner cell mass/Trophectoderm cells) ratio via staining with propidium iodide and Hoechest333258, and analyzed the level of genome methylation and histone acetylation by immunofluorescence.

比较各组受精卵的卵裂率和囊胚发育率；并应用碘化丙啶和Hoechest333258对囊胚进行染色，利用ICM/TE值评价各组胚胎体外发育的质量；同时将囊胚进行免疫荧光染色，观察其基因组甲基化和组蛋白乙酰化的水平。

It was found that methylation status of these genes remained identical to that derived from the original unamplified template.

我们发现这些基因甲基化状态与原始的、未经过放大步骤处理模板所做岀之结果为一致的。

This implies that DNA methylation of promoter exon 1_7 may not underly the mechanism of GR up-regulation in GLP-1 -programmed rats.5 Hippocampal expression of GLP-1R and NGFI-A mRNAHippocampal GLP-1R (p =.009) and NGFI-A (p =.001) gene mRNA expression were significantly up-regulated in GP group as compared to VP group.Taken together, neonatal intramuscular injection of plasmid DNA encoding GLP-1 affects behavior and hippocampal GR expression in adolescent rats.

提示GR exon 1_7启动子区域DNA甲基化可能不参与GLP-1导致的GR转录上调。6海马GLP-1R和NGFI-A mRNA表达GP组大鼠GLP-lR(P=。009)和NGFI-A(P=。001)表达均显著高于VP组，表明肌肉注射GLP-1可能通过作用于其海马受体提高NGFI-A表达，进而调控GR表达。

The remainder 12 patients were fourd Id4 unmethylated, 1 case out of whom relapsed within the next 3-month of follow-up (8.33%), while 10 out of 20 patients (50%) with 1d4 methylation relapsed within the same follow-up period.

结果发现，32例完全缓解的ALL患者中20例(62.5%)DNA抑制因子4呈甲基化。12例DNA抑制因子4呈非甲基化的患者中只有1例3个月内复发，复发率8.33%，20例DNA抑制因子4呈甲基化状态的患者中10例3个月内复发，复发率50%。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。