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The effect of susceptibility variants identified in never-smoking female lung cancer on male smokers
( Seung Soo Yoo ),( Hyo-gyoung Kang ),( Jin Eun Choi ),( Sun Ha Choi ),( Shin Yup Lee ),( Jaehee Lee ),( Seung Ick Cha ),( Chang Ho Kim ),( Eungbae Lee ),( Jae Yong Park ) 대한결핵 및 호흡기학회 2018 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.126 No.-
Genome wide and candidate gene association studies have identified polymorphisms associated with the risk of lung cancer in never-smokers. This study was conducted to evaluate the association between 11 polymorphisms identified in female never smokers and the lung cancer risk in male smokers. Two polymorphisms were associated with the risk of lung cancer in male smokers, as in female never smokers. Male smokers carrying the rs4975616 variant allele had a significantly decreased risk of lung cancer (in a codominant model: odds ratio=0.77, 95% confidence interval=0.61-0.96, P=0.02). The rs9387478 polymorphism also reduced lung cancer risk in male smokers (in a codominant model: odds ratio=0.85, 95% confidence interval=0.73-1.00, P=0.05). In a stratified analysis, the association between these polymorphisms and the risk of lung cancer was predominant in lighter smokers and for cases of adenocarcinoma. These results suggest that a subset of polymorphisms known to be associated with the risk of lung cancer in female never smokers is also associated with the risk of lung cancer in male smokers.
( Seung Soo Yoo ),( Hyo-gyoung Kang ),( Jin Eun Choi ),( Sook Kyung Do ),( Won Kee Lee ),( Sun Ha Choi ),( So Yeon Lee ),( Shin Yup Lee ),( Jaehee Lee ),( Seung Ick Cha ),( Chang Ho Kim ),( Yangki Seo 대한결핵 및 호흡기학회 2016 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.121 No.-
A number of genome-wide association studies have reported several variants that influence the risk of lung cancer in never- smoking females. We evaluated the impact of these variants on survival outcome in never-smoking females with non-small cell lung cancer (NSCLC). In total, 510 never-smoking females with NSCLC who underwent curative surgery were enrolled. Eleven variants associated with lung cancer susceptibility in never-smoking females, were genotyped and their associations with survival outcome were analyzed. Among these 11 variants, TP63 rs7631358 and CSF1R rs10079250 affected survival outcomes. TP63 rs7631358 G>A was associated with a relatively worse overall survival (under a dominant model; hazard ratio = 2.31, 95% confidence interval = 1.18-4.52, P = 0.01). CSF1R rs10079250 A>G was associated with a relatively better disease- free survival (under a codominant model; hazard ratio = 0.70, 95% confidence interval = 0.53-0.93, P = 0.01). These results suggest that TP63 rs7631358 G>A and CSF1R rs10079250 A>G may affect the prognosis of NSCLC in never-smoking females, as well as the risk of lung cancer.
( Seung Soo Yoo ),( Hyo-gyoung Kang ),( Jin Eun Choi ),( Mi Jeong Hong ),( Sook Kyung Do ),( Jang Hyuck Lee ),( Won Kee Lee ),( Shin Yup Lee ),( Jaehee Lee ),( Seung Ick Cha ),( Chang Ho Kim ),( Eung 대한내과학회 2020 The Korean Journal of Internal Medicine Vol.35 No.4
Background/Aims: Genome wide and candidate gene association studies have identified polymorphisms associated with the risk of lung cancer in never-smokers. This study was conducted to evaluate the association between 11 polymorphisms identified in female never smokers and the lung cancer risk in male smokers. Methods: This study included 714 lung cancer patients and 626 healthy controls. The polymorphisms were genotyped using SEQUENOM MassARRAY iPLEX assay or Taq-Man assay. Results: Two polymorphisms were associated with the risk of lung cancer in male smokers, as in female never smokers. Male smokers carrying the rs4975616 variant allele had a significantly decreased risk of lung cancer (in a codominant model: odds ratio, 0.77; 95% confidence interval, 0.61 to 0.96; p = 0.02). The rs9387478 polymorphism also reduced lung cancer risk in male smokers (in a codominant model: odds ratio, 0.85; 95% confidence interval, 0.73 to 0.997; p = 0.046). In a stratified analysis, the association between these polymorphisms and the risk of lung cancer was predominant in lighter smokers and for cases of adenocarcinoma. Conclusions: These results suggest that a subset of polymorphisms known to be associated with the risk of lung cancer in female never smokers is also associated with the risk of lung cancer in male smokers.
International tourism receipts and economic growth : a cross-country analysis
Hyo-Ju Kim(김효주),Seung-Hoon Yoo(유승훈) 한국무역학회 2008 무역학자 전국대회 발표논문집 Vol.2008 No.8
Evaluating the sources of economic growth is obviously important, and numerous attempts have been made to judge the impact of many different factors on economic growth. Since some empirical studies have reported that International tourism receipts (ITR) is one of the important factors in economic growth, this paper empirically explores the impacts of ITR on economic growth using a cross-country analysis based on data from 102 countries for the year 1995-2005. To this end, a further augmented version of the endogenous growth theory model, explicitly including ITR, is applied. Subject to the appropriate caveats, the results provide further support for several key conclusions of the former studies - investment in physical capital, population growth, and the human capital are important in accounting for economic growth across countries. More importantly, it is concluded that ITR significantly contributes to economic growth. Thus, the suggestion that countries can significantly enhance their economic growth by further increasing ITR seems to be supported by the results of this study.
Seung Won Cheon,Seung-Guk Park,Sunmi Yoo,Hyo-Eun Kim,Hyunji Kim 대한가정의학회 2021 Korean Journal of Family Medicine Vol.42 No.4
Background: This study aimed to investigate trends in the prevalence of current smokers and motivation to quit among Korean male cancer survivors. Methods: Out of 20,012 men who participated in the Korea National Health and Nutrition Examination Survey V (2010–2012), VI (2013–2015), and VII (2016–2017), 742 cancer survivors were included. A cancer survivor was defined as a person who concurred to the item, “The cancer has been diagnosed by a doctor” in the health questionnaire. Smoking status was classified as current, former, and never smokers. Regarding motivation to quit smoking, we defined those who had a willingness to quit within 6 months as the willing group. Logistic regression analysis was conducted to examine trends in the prevalence of current smokers and the proportion of the willing group among current smokers. Results: Overall, 3.7% of Korean men who participated in the study were cancer survivors. Current smokers constituted 19.5%, 19.1%, and 15.3% of cancer survivors in phases V, VI, and VII respectively which did not show significant changes (P for trend=0.33). However, the proportion of current smokers in the non-cancer group was significantly reduced to 46.6%, 41.2%, and 38.9% in phases V, VI, and VII, respectively (P for trend <0.001). The proportion of those with a motivation to quit smoking did not show a significant trend in the cancer survivors (P for trend=0.964) and non-cancer group (P for trend=0.884). Conclusion: Prevalence of current smokers and motivation to quit in Korean male cancer survivors did not show significant trends.
Monte Carlo Few-Group Constant Generation for CANDU 6 Core Analysis
Yoo, Seung Yeol,Shim, Hyung Jin,Kim, Chang Hyo Hindawi Limited 2015 Science and technology of nuclear installations Vol.2015 No.-
<P>The current neutronics design methodology of CANDU-PHWRs based on the two-step calculations requires determining not only homogenized two-group constants for ordinary fuel bundle lattice cells by the WIMS-AECL lattice cell code but also incremental two-group constants arising from the penetration of control devices into the fuel bundle cells by a supercell analysis code like MULTICELL or DRAGON. As an alternative way to generate the two-group constants necessary for the CANDU-PHWR core analysis, this paper proposes utilizing a B1theory augmented Monte Carlo (MC) few-group constant generation method (B1MC method) which has been devised for the PWR fuel assembly analysis method. To examine the applicability of the B1MC method for the CANDU 6 core analysis, the fuel bundle cell and supercell calculations are performed using it to obtain the two-group constants. By showing that the two-group constants from the B1MC method agree well with those from WIMS-AECL and that core neutronics calculations for hypothetical CANDU 6 cores by a deterministic diffusion theory code SCAN with B1MC method generated two-group constants also agree well with whole core MC analyses, it is concluded that the B1MC method is well qualified for both fuel bundle cell and supercell analyses.</P>