Disease Score gda Association Type Type Original DB Sentence supporting the association PMID PMID Year
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 GeneticVariation disease BEFREE The purpose of the current study is to assess the contribution of the CYP2A6*2 rs1801272 and CYP2A6*9 rs28399433 gene polymorphisms and tobacco smoking in the risk of lung cancer in an Egyptian population. 29724170 2018
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 Biomarker disease BEFREE These findings suggest that CYP2A6 activity provides information on lung cancer risk that is not captured by smoking history or a (short-term) biomarker of dose. 28542511 2017
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 GeneticVariation disease BEFREE We aimed to compare CYP2A6 genetic variation and CYP2A6 enzyme activity (representative of the rate of nicotine metabolism) between the two tribal populations as these have previously been associated with differences in smoking, quitting, and lung cancer risk. 28181923 2017
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 GeneticVariation disease BEFREE Thus the reduced risk of lung cancer in smokers with lower CYP2A6 activity may be explained by lower consumption of cigarettes, less intense smoking and reduced CYP2A6-catalyzed activation of the tobacco-specific lung carcinogen NNK. 28182203 2017
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 Biomarker disease BEFREE Yet only in Asian populations, both Japanese and Chinese, which have a high prevalence of genetic variants, has a link between CYP2A6, smoking dose, and lung cancer been established. 28092945 2017
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 GeneticVariation disease BEFREE Genetic variation in CYP2A6 may affect smoking behavior and contribute to lung cancer risk. 26662855 2016
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 GeneticVariation disease BEFREE However, no study has evaluated the relationship between CYP2A6 genetic variants and the CYP2A6 activity ratio (total 3-hydroxycotinine/cotinine) and their influence on smoking intensity [total nicotine equivalents (TNE)], across five racial/ethnic groups found to have disparate rates of lung cancer. 26818358 2016
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 AlteredExpression disease BEFREE The present data support the hypothesis that a greater CYP2A6 activity causes smokers to smoke more extensively and be exposed to higher levels of carcinogens, resulting in an increased risk for lung cancer. 27488534 2016
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 GeneticVariation disease BEFREE We and others have previously reported that CYP2A6*4, a whole-gene deletion polymorphism, is associated with lower risk of lung cancer than the wild-type allele. 26091970 2015
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 Biomarker disease CTD_human We confirmed the major role that CYP2A6 plays in nicotine metabolism, and made novel findings with respect to genome-wide significance and associations with CPD, abstinence and lung cancer risk. 26132489 2015
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 GeneticVariation disease BEFREE These findings support a contribution of genetic variation in CYP2A6 to lung cancer risk among African American smokers, particularly men, whereby CYP2A6 genotypes associated with reduced metabolic activity confer a lower risk of developing lung cancer. 25416559 2015
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 Biomarker disease BEFREE We confirmed the major role that CYP2A6 plays in nicotine metabolism, and made novel findings with respect to genome-wide significance and associations with CPD, abstinence and lung cancer risk. 26132489 2015
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 GeneticVariation disease BEFREE Genome-wide significant associations with cigarettes per day (CPD) and risk for lung cancer and chronic obstructive pulmonary disease (COPD) were previously reported in a region of 19q13, including CYP2A6 (nicotine metabolism enzyme) and EGLN2 (hypoxia response). 24045616 2014
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 GeneticVariation disease BEFREE When stratified by smoking, the effects of CYP1A1 and CYP2A6 polymorphisms on lung cancer susceptibility were found to be significant only in heavy smokers who had smoked 40 pack years or more (54% of all cases) but no associations were seen for lighter smokers. 23178447 2013
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 GeneticVariation disease BEFREE Overall, we found that CYP2A6 *1/*1 genotype was associated with an increased risk of lung cancer relative to *4/*4 genotype (OR = 2.65, 95 % CI: 1.84-3.81, P < 0.001). 23733493 2013
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 GeneticVariation disease BEFREE The whole gene deletion of CYP2A6 may decrease the risk of lung cancer in Asian samples. 23585826 2013
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 Biomarker disease BEFREE In 2005, we examined functional CYP2A6 variants associated with reduced metabolism (CYP2A6*2, CYP2A6*9, CYP2A6*4), smoking history, and change in smoking in 878 adult smokers undergoing lung cancer screening in an urban setting. 23528144 2013
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 GeneticVariation disease BEFREE Previously we found that variation in CYP2A6 and CHRNA5-CHRNA3-CHRNB4 combined to increase lung cancer risk in a case-control study in European American ever-smokers (n = 860). 23591849 2013
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 GeneticVariation disease BEFREE The results of this meta-analysis suggest that the reduced-activity CYP2A6 genotype may decrease the risk of lung cancer in smokers only. 23203414 2013
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 GeneticVariation disease BEFREE These results indicated that the three-order interaction of CYP2A6, CYP1A1, and CYP2D6 polymorphisms might increase genetic susceptibility to lung cancer. 23471717 2013
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 GeneticVariation disease BEFREE Overall, no significant association was observed in CYP2A6*4 with the risk of lung cancer under any genetic model for all samples after correction. 23649654 2013
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 GeneticVariation disease BEFREE It has been reported that the plasma concentration of cotinine, a major metabolite of nicotine, in carriers of wild-type alleles of CYP2A6 is considerably higher than that in carriers of null or reduced-function alleles of CYP2A6, raising the possibility that cotinine plays an important role in the development of lung cancer. 22687995 2012
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 Biomarker disease BEFREE CYP2A6 and CHRNA5-A3-B4 appear to be more strongly associated with smoking behaviors and lung cancer risk, respectively. 21747048 2011
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 GeneticVariation disease BEFREE These data indicate that CYP2A6 deletions may be associated with lung cancer in the Japanese population studied. 21791872 2011
CUI: C0242379
Disease: Malignant neoplasm of lung
Malignant neoplasm of lung
0.400 GeneticVariation disease BEFREE One of these loci is the CYP2A6 deletion, previously linked to reduced susceptibility to lung cancer. 20506136 2010