甲基化的

To study the performance of inorganic composite catalyst for the SPC oxidation of p-methyl anisole, Cu2-Co2-KBr is used as catalyst of sodium percarbonate oxidation for p-methyl anisole synthesized by paracresol methylating. Effect of reaction conditions, such as the factors of catalyst composition, catalyst quantity, solvent, reaction temperature and time on oxidation of p-methyl anisole, is investigated.

研究了无机复合催化剂催化SPC氧化对甲基苯甲醚的反应性能：以Cu2-Co2-KBr为催化剂，利用过碳酸钠氧化对甲酚甲基化产物对甲基苯甲醚，系统研究了催化剂组成比例、催化剂用量、溶剂、反应温度、反应时间等因素对反应的影响。

Aberrant DNA methylation patterns go beyond the fields of epigenesis. Its mainly about a reaction of cytosine transformation into S-methylcytosine mediated by methyltransferases.

DNA甲基化是表遗传学上研究最深入的一种机制，是由甲基转移酶介导，将胞嘧啶变为S—甲基胞嘧啶的一种反应。

Three formyl group functional cross-linking polystyrene resins of p -formylphenoxymethyl, p -formyl-2-methoxphenoxymethyl,and p -formyl-3-methoxphenoxymethyl were facilely and rapidly synthesized from Merrifield resin under phase transfer catalytic condition coupling with microwave irradiation in a domestic microwave oven.

以Merrifield树脂为原料，家用微波炉为反应装置，在微波照射的相转移催化条件下，简便快速地合成了3种甲酰基功能化的交联聚苯乙烯树脂——对甲酰基苯氧基甲基树脂、对甲酰基-2-甲氧基苯氧基甲基树脂和对甲酰基-3-甲氧基苯氧基甲基树脂。

Three formyl group functional cross-linking polystyrene resins of methoxphenoxymethyl, and p-formyl-3-methoxphenoxymethyl were facilely and p-formylphenoxymethyl, p-formyl-2-rapidly synthesized from Merrifield resin under phase transfer catalytic condition coupling with microwave irradiation in a domestic microwave oven.

以Merrifield树脂为原料，家用微波炉为反应装置，在微波照射的相转移催化条件下，简便快速地合成了3种甲酰基功能化的交联聚苯乙烯树脂--对甲酰基苯氧基甲基树脂、对甲酰基-2-甲氧基苯氧基甲基树脂和对甲酰基-3-甲氧基苯氧基甲基树脂。

Ingle nucleotide polymorphism genotying and deoxyribonucleic acid methylation are significant in molecular biology, but their tradition analyse methods have some limitations, and liquid chromatography - mass spectrometry are favourable for analyzing them.

NP分型和DNA甲基化在分子生物学中具有重要的研究意义，但它们传统的分析方法存在较大的缺陷，而液-质联用技术在SNP分型和DNA甲基化分析中显示出良好的应用前景。

All date above showed that SDG714 was involved in heterochromatin stability and the mechanism of histone methylation controlling DNA methylation was conserved in monocot.

表明SDG714影响异染色质的功能和染色体的稳定性，H3K9组蛋白的甲基化控制DNA的甲基化这一特性，在水稻中同样具有保守性。

30 Of the benign lesions is similar with the adjacent pathologicallly normal mammary tissue (104. 20±36. 56). In all of the paired benign and malignant samples, there was concordance between the expression of NES1mRNA and protein.

在所有43例患者的对照正常乳腺组织中均未发现有NES1基因CpG岛的甲基化。30例乳腺恶性肿瘤组的NES1基因的甲基化率明显高于15例乳腺良性病变组，两组差异有显著性意义（x〓=8.72，P＜0.01）。

Furthermore, besides considering changes in DNA methylation as mechanisms of disease, the role of epigenetics in general and DNA methylation in particular in transgenerational carcinogenesis, in memory formation and behavior establishment are brought about as mechanisms based on the cellular memory of gene expression patterns.

而且，除了考虑DNA甲基化改变作为疾病的机制外，表观遗传学一般的及DNA甲基化特别的在隔代致癌中的作用，在记忆形成和行为确立被引发作为基于基因表达模式的细胞记忆的机制。

Takeshi Nagasaka, M.D., of the Department of Gastroenterological Surgery and Surgical Oncology at the Okayama University of Graduate School of Medicine, and colleagues analyzed methylation of the RAS腾讯QQ2 and 腾讯QQRP2 gene promoter腾讯QQrom 788 primary gastric and colorectal tissue specimens to determine whether methylation patterns could act as stage-dependent biomarkers of gastrointestinal tumorigenesis.

Takeshi Nagasaka医学博士来自冈山大学医学研究所胃肠外科和肿瘤外科部门，他和同事一起检测了788例早期胃癌和结直肠癌病人的组织样本中的RAS腾讯QQ2和腾讯QQRP2两个基因启动因子的甲基化现象。以确定甲基化模式可否作为胃肠道肿瘤发生的阶段性生物标记物。

RT-PCR was used to detect the mRNA expression of p16 and MGMT before and after treatment with 5-Aza-dC, respectively. Results: Promoter hypermethylation of the p16 and MGMT gene were detected in MGC-803 cells, and p16 and MGMT were absent before treatment.

应用5-Aza-dC处理体外培养的胃癌细胞MGC-803后，甲基化特异性PCR法检测用药前后细胞中p16和MGMT基因的甲基化状态，RT-PCR法检测用药前后细胞中p16和MGMT mRNA表达的变化。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。