http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Classification of Colon Cancer Patients Based on the Methylation Patterns of Promoters
Choi, Wonyoung,Lee, Jungwoo,Lee, Jin-Young,Lee, Sun-Min,Kim, Da-Won,Kim, Young-Joon Korea Genome Organization 2016 Genomics & informatics Vol.14 No.2
Diverse somatic mutations have been reported to serve as cancer drivers. Recently, it has also been reported that epigenetic regulation is closely related to cancer development. However, the effect of epigenetic changes on cancer is still elusive. In this study, we analyzed DNA methylation data on colon cancer taken from The Caner Genome Atlas. We found that several promoters were significantly hypermethylated in colon cancer patients. Through clustering analysis of differentially methylated DNA regions, we were able to define subgroups of patients and observed clinical features associated with each subgroup. In addition, we analyzed the functional ontology of aberrantly methylated genes and identified the G-protein-coupled receptor signaling pathway as one of the major pathways affected epigenetically. In conclusion, our analysis shows the possibility of characterizing the clinical features of colon cancer subgroups based on DNA methylation patterns and provides lists of important genes and pathways possibly involved in colon cancer development.
Sub-㎜ 스케일 과산화수소 이용 메탄올 자열 개질기를 위한 Cu-ZnO/Al₂O₃-Ni foam 촉매 합성
최원영(Wonyoung Choi),진정근(Jungkeun Jin),권세진(Sejin Kwon),신현동(Hyun Dong Shin) 한국연소학회 2008 KOSCOSYMPOSIUM논문집 Vol.- No.-
Micro scale fuel cell is an alternative of conventional battery for power source of mobile devices. Hydrogen which is indispensable to fuel cell is supplied by fuel reformer from conventional hydrocarbon fuel. In this work, copper-zinc oxide/alumina catalyst for a sub-millimeter scale methanol reformer was fabricated. Alumina was coated on a tailored porous nickel foam by clip coating of alumina slurry consisted alumina sol and gamma-alumina powder. Brunauer-Emmett-Teller surface area and Barrett-Joyner-Halenda pore size distribution of alumina-nickel foam support were measured by nitrogen adsorption and desorption. The catalyst was impregnated on the support and validated by X-ray diffractometry. The quantity of alumina on the nickel foam linearly increased as the number of repetition of dip coating. Pore condensation occurred during adsorption and desorption. The pore diameter in the alumina was in 5~20 ㎚. Therefore, the support was mesoporous material. Copper and zinc oxide were coated on the support after calcination and reduction.