目的探讨维生素D受体(vitamin D receptor,VDR)基因遗传多态性及环境因素与青少年身高发育状况的关系,为了解遗传和环境因素对青春期学生身高的影响提供依据。方法分层随机抽取绍兴市212名青少年进行体格检查及问卷调查,对VDR基因进行PC...目的探讨维生素D受体(vitamin D receptor,VDR)基因遗传多态性及环境因素与青少年身高发育状况的关系,为了解遗传和环境因素对青春期学生身高的影响提供依据。方法分层随机抽取绍兴市212名青少年进行体格检查及问卷调查,对VDR基因进行PCR扩增,采用基因测序技术检测基因多态性,以多元回归分析法探讨维生素D受体基因遗传多态性及环境因素对青春期身高发育的影响。结果多因素分析结果显示,BsmI,Tru9I,ApaI位点基因多态性及性别、父母身高、身体状况、体育锻炼情况、睡眠状况、喜欢肉类食品、非独生子女、母亲职业等与身高发育密切相关(P值均<0.05),其中性别和父母身高可解释青少年身高总变异的71.9%,而BsmI,Tru9I,ApaI位点等位基因多态性引起的变异只占身高总变异的2.8%。结论维生素D受体基因遗传多态性及环境因素的改变均会影响青少年身高发育,但单个基因位点的多态性对身高的影响是微小的。展开更多
AIM: To examine the effect of the potential interaction between KIF1 B variants(rs17401966 and rs3748578) and environmental factors on the risk of hepatocellular carcinoma(HCC) in a high-risk region in China.METHODS: ...AIM: To examine the effect of the potential interaction between KIF1 B variants(rs17401966 and rs3748578) and environmental factors on the risk of hepatocellular carcinoma(HCC) in a high-risk region in China.METHODS: Three hundred and six patients with HCC and 306 hospital-based control participants residing in the Shunde region of Guangdong Province, China were enrolled. Clinical characteristics were collected by reviewing the complete medical histories from the patient archives, and epidemiological data were collected using a questionnaire and clinical examination. Two single nucleotide polymorphisms(SNPs) of KIF1B(rs17401966 and rs3748578) were chosen for the current study. All subjects were genotypedusing a Taq Man real-time polymerase chain reaction. Multiplicative and additive logistic regression models were used to evaluate various gene-environment interactions.RESULTS: Smoking, frequent consumption of raw freshwater fish, hepatitis B virus(HBV) infection, and a family history of HCC were important risk factors for HCC in this population. Chronic infection with HBV was the most important environmental risk factor for HCC [odds ratio(OR) = 12.02; 95% confidence interval(95%CI): 6.02-24.00]. No significant association was found between the KIF1 B variants alone and the risk of HCC. Nevertheless, a significant additive effect modification was observed between rs17401966 and alcohol consumption(P for additive interaction = 0.0382). Compared with non-drinkers carrying either the AG or GG genotype of rs17401966, individuals classified as alcohol consumers with the AA genotype of rs17401966 had a significantly increased risk of HCC(OR = 2.36; 95%CI: 1.49-3.74).CONCLUSION: The gene-environment interaction between the KIF1 B rs17401966 variant and alcohol consumption may contribute to the development of HCC in Chinese individuals.展开更多
文摘目的探讨维生素D受体(vitamin D receptor,VDR)基因遗传多态性及环境因素与青少年身高发育状况的关系,为了解遗传和环境因素对青春期学生身高的影响提供依据。方法分层随机抽取绍兴市212名青少年进行体格检查及问卷调查,对VDR基因进行PCR扩增,采用基因测序技术检测基因多态性,以多元回归分析法探讨维生素D受体基因遗传多态性及环境因素对青春期身高发育的影响。结果多因素分析结果显示,BsmI,Tru9I,ApaI位点基因多态性及性别、父母身高、身体状况、体育锻炼情况、睡眠状况、喜欢肉类食品、非独生子女、母亲职业等与身高发育密切相关(P值均<0.05),其中性别和父母身高可解释青少年身高总变异的71.9%,而BsmI,Tru9I,ApaI位点等位基因多态性引起的变异只占身高总变异的2.8%。结论维生素D受体基因遗传多态性及环境因素的改变均会影响青少年身高发育,但单个基因位点的多态性对身高的影响是微小的。
文摘AIM: To examine the effect of the potential interaction between KIF1 B variants(rs17401966 and rs3748578) and environmental factors on the risk of hepatocellular carcinoma(HCC) in a high-risk region in China.METHODS: Three hundred and six patients with HCC and 306 hospital-based control participants residing in the Shunde region of Guangdong Province, China were enrolled. Clinical characteristics were collected by reviewing the complete medical histories from the patient archives, and epidemiological data were collected using a questionnaire and clinical examination. Two single nucleotide polymorphisms(SNPs) of KIF1B(rs17401966 and rs3748578) were chosen for the current study. All subjects were genotypedusing a Taq Man real-time polymerase chain reaction. Multiplicative and additive logistic regression models were used to evaluate various gene-environment interactions.RESULTS: Smoking, frequent consumption of raw freshwater fish, hepatitis B virus(HBV) infection, and a family history of HCC were important risk factors for HCC in this population. Chronic infection with HBV was the most important environmental risk factor for HCC [odds ratio(OR) = 12.02; 95% confidence interval(95%CI): 6.02-24.00]. No significant association was found between the KIF1 B variants alone and the risk of HCC. Nevertheless, a significant additive effect modification was observed between rs17401966 and alcohol consumption(P for additive interaction = 0.0382). Compared with non-drinkers carrying either the AG or GG genotype of rs17401966, individuals classified as alcohol consumers with the AA genotype of rs17401966 had a significantly increased risk of HCC(OR = 2.36; 95%CI: 1.49-3.74).CONCLUSION: The gene-environment interaction between the KIF1 B rs17401966 variant and alcohol consumption may contribute to the development of HCC in Chinese individuals.
