[Applications of genome wide association studies and whole genome sequencing in pancreatic cancer].
Li Zhang, Jie Chen
Abstract
Li Zhang, Jie Chen
Abstract
一、全基因组关联研究(genome wide association studies,GWAS)的概念GWAS借助于单核苷酸多态性(single nucleotide polymorphism,SNP)芯片等新技术,可以同时分析基因组中的上百万个SNP,找出在患者和健康人中等位基因频率显著不同的SNP,这些SNP即是和疾病发生相关联的.SNP往往位于某致病基因周围,SNP本身不造成疾病,而是用来决定发病的可能性.SNP也可以用来预测患者对某种药物的敏感性.复杂疾病的遗传致病因素可以由众多常见SNP,即高频率SNP(minor allele frequency,MAF> 5%)联合组成,每个SNP贡献一定的致病风险。
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一、全基因组关联研究(genome wide association studies,GWAS)的概念GWAS借助于单核苷酸多态性(single nucleotide polymorphism,SNP)芯片等新技术,可以同时分析基因组中的上百万个SNP,找出在患者和健康人中等位基因频率显著不同的SNP,这些SNP即是和疾病发生相关联的.SNP往往位于某致病基因周围,SNP本身不造成疾病,而是用来决定发病的可能性.SNP也可以用来预测患者对某种药物的敏感性.复杂疾病的遗传致病因素可以由众多常见SNP,即高频率SNP(minor allele frequency,MAF> 5%)联合组成,每个SNP贡献一定的致病风险。
Key concepts: Pancreatic cancer, Genome, Whole genome sequencing, Biology, Computational biology, Cancer genome sequencing, Genome-wide association study, Genetics