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Genome-wide association studies: inherent limitations and future challenges
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《医学前沿(英文)》 2012年 第6卷 第4期 页码 444-450 doi: 10.1007/s11684-012-0225-3
Genome-wide association studies (GWAS) have achieved great success in identifying genetic variants related to complex human diseases such as cancer and have provided valuable insights into their genetic architecture. Recently, GWAS is quite the fashion in China. However, there are issues related to its nature. Enormous work needs to be done in the post-GWAS era. Deep sequencing followed by functional studies will be needed to elucidate the underpinning biological mechanisms and further translate GWAS findings into medical practice. Along with pharmacogenomics, the success of GWAS in identifying genetic risk factors and genetic differences in drug response has been gradually enabling personalized medicine. In this article, we used hepatocellular carcinoma (HCC) as an example to demonstrate some of the inherent limitations and summarized future challenges of GWAS.
关键词: genome-wide association studies (GWAS) genetic variant cancer limitation challenge
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《医学前沿(英文)》 2015年 第9卷 第2期 页码 146-161 doi: 10.1007/s11684-014-0373-8
Obesity prevalence has increased in recent years. Lifestyle change fuels obesity, but genetic factors cause more than 50% of average variations in obesity. The advent of genome-wide association studies (GWAS) has hastened the progress of polygenic obesity research. As of this writing, more than 73 obesity susceptibility loci have been identified in ethnic groups through GWAS. The identified loci explain only 2% to 4% of obesity heritability, thereby indicating that a large proportion of loci remain undiscovered. Thus, the next step is to identify and confirm novel loci, which may exhibit smaller effects and lower allele frequencies than established loci. However, achieving these tasks has been difficult for researchers. GWAS help researchers discover the causal loci. Moreover, numerous biological studies have been performed on the polygenic effects on obesity, such as studies on fat mass- and obesity-associated gene (FTO), but the role of these polygenic effects in the mechanism of obesity remains unclear. Thus, obesity-causing variations should be identified, and insights into the biology of polygenic effects on obesity are needed.
关键词: obesity genetics genome-wide association studies body mass index fat mass- and obesity-associated gene
毕建欣,张岐山
《中国工程科学》 2005年 第7卷 第4期 页码 88-94
介绍了关联规则挖掘算法的基本原理,并按照挖掘中涉及到的变量数目(维数)、数据的抽象层次和处理变量的类别(布尔型和数值型),依次对关联规则挖掘算法的研究进行综述,并对一些典型的算法进行分析和比较,最后展望了关联规则挖掘算法的研究方向。
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《医学前沿(英文)》 2012年 第6卷 第3期 页码 322-328 doi: 10.1007/s11684-012-0204-8
The aim of this study was to determine the prevalence of overweight and obese subjects in the Shanghai population of China and its association with undiagnosed hypertension, by taking age, gender and place of residence (urban or suburban) into account. A cross-sectional population-based survey was conducted in 2007. The sample included 13 359 participants aged 15–69 years. Weight, height, and blood pressure were recorded, and information about gender, age and place of residence was obtained. Overweight and obesity prevalence were calculated by the body mass index (BMI) definition recommended by Working Group on Obesity in China (normal weight, 18.5–23.9 kg/m2; overweight, 24–27.9 kg/m2; obesity,≥28 kg/m2). Undiagnosed hypertension was defined by China criteria in accord with that of WHO-ISH (subjects with systolic pressure≥140 mmHg, and/or diastolic pressure≥90 mmHg). Multiple logistic regression analyses were used to assess the association of overweight or obesity with undiagnosed hypertension by adjusting for age, gender and place of residence. The overall overweight, obesity, and undiagnosed hypertension prevalence were 27.6% (95% CI: 26.8–28.4), 6.6% (95% CI: 6.2–7.0), and 15.5% (95% CI: 14.9–16.1), respectively. Compared to normal weight subjects, the odds ratios (OR) for subjects who were overweight and had hypertension was 2.33 (95% CI: 2.10–2.59); that for obesity and hypertension was 4.27 (95% CI: 3.66–4.99). These data suggest that overweight and obesity prevalence and their association with undiagnosed hypertension are high in our study population.
关键词: overweight obesity undiagnosed hypertension prevalence association
Genome-wide association study of the backfat thickness trait in two pig populations
Dandan ZHU,Xiaolei LIU,Rothschild MAX,Zhiwu ZHANG,Shuhong ZHAO,Bin FAN
《农业科学与工程前沿(英文)》 2014年 第1卷 第2期 页码 91-95 doi: 10.15302/J-FASE-2014005
关键词: backfat thickness SNP chip genome-wide association study compressed mixed linear model pig
How to judge the association of postmenopausal hormone therapy and the risk of breast cancer
Ling XU
《医学前沿(英文)》 2010年 第4卷 第3期 页码 290-293 doi: 10.1007/s11684-010-0093-7
关键词: breast cancer postmenopausal hormone therapy unopposed estrogen therapy combined estrogen-progestin therapy
Abiotic association of phthalic acid esters with humic acid of a sludge landfill
Xiaoli CHAI, Yongxia HAO, Xin ZHAO, Guixiang LIU, Ying ZHU, Rong JI, Jun WU, Huanhuan TONG, Youcai ZHAO
《环境科学与工程前沿(英文)》 2012年 第6卷 第6期 页码 778-783 doi: 10.1007/s11783-012-0434-7
关键词: abiotic association phthalic acid esters (PAEs) humic acid sludge landfill
《环境科学与工程前沿(英文)》 2022年 第16卷 第3期 doi: 10.1007/s11783-021-1469-4
• Distribution of ARGs in decentralized sewage facilities were investigated.
关键词: Decentralized sewage treatment facilities Antibiotic resistance genes Virus Metagenomics Network analysis
A post-GWAS replication study confirming the association of
Shaohua YANG,Chao QI,Yan XIE,Xiaogang CUI,Yahui GAO,Jianping JIANG,Li JIANG,Shengli ZHANG,Qin ZHANG,Dongxiao SUN
《农业科学与工程前沿(英文)》 2014年 第1卷 第4期 页码 321-330 doi: 10.15302/J-FASE-2014037
关键词: GWAS functional annotation Chinese Holstein milk production traits C14H8orf33 gene single nucleotide polymorphisms association study
Xingwang WANG, Rongrong DING, Jianping QUAN, Linxue YANG, Ming YANG, Enqin ZHENG, Dewu LIU, Gengyuan CAI, Zhenfang WU, Jie YANG
《农业科学与工程前沿(英文)》 2017年 第4卷 第3期 页码 335-341 doi: 10.15302/J-FASE-2017152
关键词: Duroc pigs genome-wide association analysis intramuscular fat
Joint user association and resource partition for downlink-uplink decoupling in multi-tier HetNets Article
Zhi-yong FENG, Ze-bing FENG, T. Aaron GULLIVER
《信息与电子工程前沿(英文)》 2017年 第18卷 第6期 页码 817-829 doi: 10.1631/FITEE.1700031
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《医学前沿(英文)》 2015年 第9卷 第4期 页码 478-486 doi: 10.1007/s11684-015-0420-0
Telomeres play a critical role in biological ageing by maintaining chromosomal integrity and preventing chromosome ends fusion. Epidemiological studies have suggested that inter-individual differences of telomere length could affect predisposition to multiple cancers, but evidence regarding esophageal squamous cell carcinoma (ESCC) was still uncertain. Several telomere length-related single nucleotide polymorphisms (TL-SNPs) in Caucasians have been reported in genome-wide association studies. However, the effects of telomere length and TL-SNPs on ESCC development are unclear. Therefore, we conducted a case-control study (1045 ESCC cases and 1433 controls) to evaluate the associations between telomere length, TL-SNPs, and ESCC risk in Chinese population. As a result, ESCC cases showed overall shorter relative telomere length (RTL) (median: 1.34) than controls (median: 1.50, P<0.001). More interestingly, an evident nonlinear U-shaped association was observed between RTL and ESCC risk (P<0.001), with odds ratios (95% confidence interval) equal to 2.40 (1.84–3.14), 1.36 (1.03–1.79), 1.01 (0.76–1.35), and 1.37 (1.03–1.82) for individuals in the 1st (the shortest), 2nd, 3rd, and 5th (the longest) quintile, respectively, compared with those in the 4th quintile as reference group. No significant associations were observed between the eight reported TL-SNPs and ESCC susceptibility. These findings suggest that either short or extremely long telomeres may be risk factors for ESCC in the Chinese population.
关键词: esophageal squamous cell carcinoma telomere length genetic variants susceptibility genome-wide association study
《医学前沿(英文)》 2023年 第17卷 第1期 页码 156-164 doi: 10.1007/s11684-022-0932-3
关键词: dietary zinc intake new-onset hypertension general population CHNS
ZHANG Yuxi, WU Feipeng, LI Miaozhen, WANG Erjian
《化学科学与工程前沿(英文)》 2007年 第1卷 第1期 页码 68-71 doi: 10.1007/s11705-007-0014-8
关键词: aqueous solution homopolyacrylic copolymer solution significant structure presence
Protein aggregation in association with delayed neuronal death in rat model of brain ischemia
GE Pengfei, FU Shuanglin, LI Wenchen, WANG Chonghao, ZHOU Chuibing, LUO Yinan, LUO Tianfei
《医学前沿(英文)》 2008年 第2卷 第1期 页码 70-74 doi: 10.1007/s11684-008-0013-2
标题 作者 时间 类型 操作
Advancement in genetic variants conferring obesity susceptibility from genome-wide association studies
null
期刊论文
Obesity and overweight prevalence and its association with undiagnosed hypertension in Shanghai population
null
期刊论文
Genome-wide association study of the backfat thickness trait in two pig populations
Dandan ZHU,Xiaolei LIU,Rothschild MAX,Zhiwu ZHANG,Shuhong ZHAO,Bin FAN
期刊论文
How to judge the association of postmenopausal hormone therapy and the risk of breast cancer
Ling XU
期刊论文
Abiotic association of phthalic acid esters with humic acid of a sludge landfill
Xiaoli CHAI, Yongxia HAO, Xin ZHAO, Guixiang LIU, Ying ZHU, Rong JI, Jun WU, Huanhuan TONG, Youcai ZHAO
期刊论文
Distribution of antibiotic resistance genes and their association with bacteria and viruses in decentralized
期刊论文
A post-GWAS replication study confirming the association of
Shaohua YANG,Chao QI,Yan XIE,Xiaogang CUI,Yahui GAO,Jianping JIANG,Li JIANG,Shengli ZHANG,Qin ZHANG,Dongxiao SUN
期刊论文
Genome-wide association analysis reveals genetic loci and candidate genes associated with intramuscular
Xingwang WANG, Rongrong DING, Jianping QUAN, Linxue YANG, Ming YANG, Enqin ZHENG, Dewu LIU, Gengyuan CAI, Zhenfang WU, Jie YANG
期刊论文
Joint user association and resource partition for downlink-uplink decoupling in multi-tier HetNets
Zhi-yong FENG, Ze-bing FENG, T. Aaron GULLIVER
期刊论文
U-shaped association between telomere length and esophageal squamous cell carcinoma risk: a case-control
null
期刊论文
J-shaped association between dietary zinc intake and new-onset hypertension: a nationwide cohort study
期刊论文
Solution properties and self-association of multi-blocks like copolymer P(AM/AA) prepared by template
ZHANG Yuxi, WU Feipeng, LI Miaozhen, WANG Erjian
期刊论文