Abstract:
BACKGROUND AND AIM:Genetic variants in the mammalian target of rapamycin (mTOR) gene have become an interesting topic for the study of genetic susceptibility to cancer, but their associations with the risk of gastric cancer have not been fully investigated. MATERIALS AND METHODS:In a hospital-based case-control study of 1002 gastric cancer patients and 1003 cancer-free controls, we genotyped four potentially functional single nucleotide polymorphisms (SNPs) (rs1034528G>C, rs17036508T>C, rs3806317A>G, and rs2295080T>G) of mTOR and assessed their associations with the risk of gastric cancer using univariate and multivariate logistic regression analyses. We also used the multifactorial dimension reduction analysis to explore possible interactions and the false-positive report probabilities to assess significant findings. RESULTS:We found that rs1034528 CG/CC and rs3806317 GA/GG variant genotypes were associated with an increased risk of gastric cancer under a dominant model (adjusted odds ratio=1.27 and 1.22, respectively). In the combined analysis of all four SNPs under investigation, patients with 3-4 risk genotypes of mTOR had a significantly increased risk of gastric cancer (adjusted odds ratio=1.46, 95% confidence interval=1.19-1.79) compared with those with 0-2 risk genotypes. Stratified analysis indicated that this risk was more pronounced in subgroups of men, never-smokers, never-drinkers, and clinical stages III+IV. The multifactorial dimension reduction analysis suggested some evidence of interactions between the combined genotypes and other risk factors for gastric cancer. CONCLUSION:These findings suggest that potentially functional SNPs of mTOR may individually or collectively contribute to the risk of gastric cancer. Larger studies with diverse ethnic populations are warranted to validate our findings.
journal_name
Pharmacogenet Genomicsjournal_title
Pharmacogenetics and genomicsauthors
Wang MY,Li QX,He J,Qiu LX,Wang YN,Li J,Sun MH,Wang XF,Yang YJ,Wang JC,Jin L,Wei QYdoi
10.1097/FPC.0000000000000163subject
Has Abstractpub_date
2015-11-01 00:00:00pages
521-30issue
11eissn
1744-6872issn
1744-6880journal_volume
25pub_type
杂志文章abstract:OBJECTIVE:Genetic polymorphisms are associated with lipid-lowering response to statins, but generalizeability to disease endpoints is unclear. The association between 82 common single nucleotide polymorphisms (SNPs) in six lipid-related or statin-related genes (ABCB1, CETP, HMGCR, LDLR, LIPC, NOS3) and incident nonfata...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/FPC.0b013e3283033528
更新日期:2008-08-01 00:00:00
abstract::UGT1A1 is induced by phenobarbital. We investigated whether three common UGT1A1 variants are associated with the variability in UGT1A1 inducibility. Human hepatocytes were incubated with 2 mM phenobarbital for 2 and 6 days followed by 5 microM SN-38 (1 h), a UGT1A1 probe. SN-38 glucuronidation in the cell media was me...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/01.fpc.0000182784.77630.48
更新日期:2006-02-01 00:00:00
abstract:OBJECTIVES:Controversy exists regarding the effects of polymorphisms in the endothelial nitric oxide synthase (eNOS) gene on nitrites/nitrates (NOx) plasma concentrations. In this study we compared the distribution of haplotypes involving three relevant eNOS polymorphisms (T-786C in the promoter region; b/a in intron 4...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/01.fpc.0000167328.85163.44
更新日期:2005-08-01 00:00:00
abstract::The human cytochrome P450 2A6 (CYP2A6) enzyme metabolizes several xenobiotic compounds of clinical or toxicological importance. We aimed to identify genetic variants and major CYP2A6 haplotypes associated with CYP2A6 phenotypic variation. CYP2A6 mRNA level, protein level, activity and haplotypes were determined in Cau...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/01.fpc.0000171517.22258.f1
更新日期:2005-09-01 00:00:00
abstract::The present study aimed to determine whether a polymorphism in CYP3A5, encoding the major CYP3A enzyme in the human kidney, is associated with blood pressure in Caucasians. A homogenous group of 115 young, white male students with normal or mildly elevated, but untreated blood pressure was included. Blood pressure was...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/01.fpc.0000175599.49764.98
更新日期:2005-10-01 00:00:00
abstract:BACKGROUND/OBJECTIVES:The polymorphic hepatic enzyme CYP2C19 catalyzes the metabolism of clinically important drugs such as clopidogrel, proton-pump inhibitors, and others and clinical pharmacogenetic testing for clopidogrel is increasingly common. The CYP2C19*10 single-nucleotide polymorphism (SNP) is located 1 bp ups...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/FPC.0000000000000068
更新日期:2014-08-01 00:00:00
abstract::Fumaric acid esters (FAE) are beneficial in the treatment of psoriasis. However, about a third of psoriasis patients do not respond to FAE. We aimed to determine whether glutathione-S-transferase (GST) M1 and GSTP1 polymorphisms are associated with treatment outcome in psoriasis patients treated with FAE. We studied 8...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/FPC.0000000000000218
更新日期:2016-05-01 00:00:00
abstract::The existence of genetic polymorphisms in metabolizing enzymes can be regarded as one of the principal causes of interindividual variation in response to drugs and adverse reactions. In the case of enzyme CYP2C9, the presence of genetic coding variants could be considered a risk factor for suffering from gastrointesti...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章,评审
doi:10.1097/FPC.0b013e328346d2bb
更新日期:2011-07-01 00:00:00
abstract:OBJECTIVE:Maldescended testes are the most common genital anomaly in newborns and are associated with testicular malignancy and infertility. As the inguinoscrotal phase of testis descent is androgen-dependent and requires integrity of the luteinizing hormone/chorionic gonadotropin receptor (LHCGR), we investigated whet...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/FPC.0b013e3282f4e98c
更新日期:2008-03-01 00:00:00
abstract:OBJECTIVES:The objective of this study was to examine the relationship between renin-angiotensin system genotypes and the pharmacogenetics of angiotensin-converting enzyme (ACE) inhibitors in Chinese patients with coronary artery disease (CAD). METHODS:Patients with angiographic CAD were recruited from 1995 to 2003. T...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/FPC.0b013e32835a0ffa
更新日期:2013-04-01 00:00:00
abstract:OBJECTIVE:The present study was designed to investigate whether genetic polymorphisms of the aryl hydrocarbon receptor (AHR) signaling pathway are involved in the molecular basis of essential hypertension (EH). METHODS:A total of 2160 unrelated Russian individuals comprising 1341 EH patients and 819 healthy controls w...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/FPC.0000000000000261
更新日期:2017-02-01 00:00:00
abstract:BACKGROUND:Organic anion transporting polypeptides (OATPs) are emerging as major determinants of pharmacokinetics for numerous drugs, with the 1B1 isoform-mediating hepatic uptake. The 521 T>C polymorphism has been correlated earlier with higher plasma concentrations of several drugs and the aim of this study was to de...
journal_title:Pharmacogenetics and genomics
pub_type: 临床试验,杂志文章
doi:10.1097/FPC.0b013e3283402efb
更新日期:2010-12-01 00:00:00
abstract:BACKGROUND/AIM:MicroRNAs (miRNAs) are small noncoding RNAs that have been implicated in mechanisms underlying various types of cancers including hepatocellular carcinoma (HCC). Reports have indicated that single nucleotide polymorphisms in miRNA-196A2 and miRNA-146A genes may contribute to the risk of progression of he...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/FPC.0000000000000187
更新日期:2016-02-01 00:00:00
abstract::A possible association between the combination of genetic variations in hepatocyte nuclear factor 4α (HNF4α) and constitutive androstane receptor (CAR) and the stable doses of warfarin was examined in patients from the Ewha-Severance Treatment (EAST) Group of Warfarin. Around 42.5% of the overall interindividual varia...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/FPC.0000000000000103
更新日期:2015-01-01 00:00:00
abstract:OBJECTIVE:Clinical response to antipsychotic medications can vary markedly in patients with schizophrenia. Identifying genetic variants associated with treatment response could help optimize patient care and outcome. To this end, we carried out a large-scale candidate gene study to identify genetic risk factors predict...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/FPC.0000000000000122
更新日期:2015-04-01 00:00:00
abstract::Recent investigations suggest genetic susceptibility of allopurinol-induced severe cutaneous adverse reactions (SCARs). However, the strength of association was variable according to phenotypes and ethnic backgrounds. To explore genetic markers for allopurinol-induced SCARs in Koreans, we genotyped human leukocyte ant...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/FPC.0b013e32834282b8
更新日期:2011-05-01 00:00:00
abstract:OBJECTIVE:A meta-analysis was carried out of published studies on the effect of the CYP3A5 6986A>G polymorphism in liver donors and transplant recipients on tacrolimus pharmacokinetics. METHODS:Cohort studies that evaluated the relationship between the CYP3A5 polymorphism in liver donors and transplant recipients and ...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章,meta分析,评审
doi:10.1097/FPC.0b013e3283642fb3
更新日期:2013-10-01 00:00:00
abstract::The genetically polymorphic cytochrome P450 2C9 (CYP2C9) metabolizes many important drugs. Among them, phenytoin has been used as a probe to determine CYP2C9 phenotype by measuring the urinary excretion of its major metabolite, S-enantiomer of 5-(4-hydroxyphenyl)-5-phenylhydantoin (p-HPPH). Phenytoin pharmacokinetic i...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/01.fpc.0000174787.92861.91
更新日期:2005-11-01 00:00:00
abstract:OBJECTIVE:A genome-wide association study has identified several gene polymorphisms associated with loss of renal function. The effect of these variants on renal function in kidney transplant recipients receiving immunosuppressive treatment is unknown. MATERIALS AND METHODS:A cohort of 189 kidney transplant recipients...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/FPC.0000000000000251
更新日期:2017-01-01 00:00:00
abstract:OBJECTIVES:Prolonged activation of the β-1 adrenergic receptor (ADRB1) is associated with receptor desensitization. This process has been suggested to have important pathophysiological and clinical implications in conditions such as congestive heart failure. The contribution of genetic factors to this process is a subj...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/FPC.0000000000000338
更新日期:2018-06-01 00:00:00
abstract:OBJECTIVE:Glutathione S-transferase enzymes (GSTs; EC: 2.5.1.18) constitute the principal phase II superfamily, which plays a key role in cellular detoxification. GST genes are organized in chromosomal clusters; most of these genes are polymorphic, mainly due to single nucleotide substitutions. Different studies proved...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/FPC.0b013e328349da4d
更新日期:2011-10-01 00:00:00
abstract:OBJECTIVES:To analyze whether gene variants leading to impaired drug metabolism are related with acute gastrointestinal bleeding after nonsteroidal anti-inflammatory drugs (NSAID) use. METHODS:Common CYP2C8 and CYP2C9 polymorphisms were studied in a cross-sectional study, involving 134 NSAID-related bleeding patients ...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/FPC.0b013e3282f305a9
更新日期:2008-01-01 00:00:00
abstract:OBJECTIVES:The methyltransferase genotype and pregnancy both influence the arsenic metabolism phenotype, but it is unknown whether these factors interact, explaining the drastic changes in the efficiency of arsenic metabolism observed among pregnant women. The aim of this study was to evaluate the relative contribution...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/FPC.0b013e3283535d6a
更新日期:2012-07-01 00:00:00
abstract:OBJECTIVE:To examine the hypothesis that genetic variation in enzymes and transporters associated with synthesis, storage, release, and metabolism of catecholamines contributes to the interindividual variability in plasma catecholamine concentrations at rest and after exercise. METHODS:We measured plasma norepinephrin...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/FPC.0b013e328350a274
更新日期:2012-04-01 00:00:00
abstract::Genotyping N-acetyltransferase 2 (NAT2) is of high relevance for individualized dosing of antituberculosis drugs and bladder cancer epidemiology. In this study we compared a recently published tagging single nucleotide polymorphism (SNP) (rs1495741) to the conventional 7-SNP genotype (G191A, C282T, T341C, C481T, G590A...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/FPC.0b013e3283493a23
更新日期:2011-10-01 00:00:00
abstract:OBJECTIVE:Genome-wide single nucleotide polymorphism (SNP) association studies recently identified two SNPs (rs11833579 and rs12425791) on chromosome 12p13 that are associated with ischemic stroke (IS) in Caucasian or Black persons from America and the Netherlands. Our aim was to determine whether these SNPs were assoc...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/FPC.0b013e32834911d0
更新日期:2011-09-01 00:00:00
abstract:OBJECTIVES:Nine different functional UGT1A enzymes are generated from a single UGT1A gene by alternative splicing, with each enzyme having a unique exon 1. SN-38, the active metabolite of the anticancer agent irinotecan, is metabolized by both UGT1A1 and UGT1A9. We aim to characterize the UGT1A9-UGT1A1 haplotypes in As...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/01213011-200505000-00004
更新日期:2005-05-01 00:00:00
abstract::We recently showed an association between the FCGR3A V/F polymorphism and the biological response [assessed on the basis of a C-reactive protein (CRP) concentration decrease] to infliximab in Crohn's disease. The CRP and FCGR3A genes are located on the same 1q23 locus. The present study aimed: (i) to exclude a linkage...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/01.fpc.0000182776.57437.d8
更新日期:2006-01-01 00:00:00
abstract::Rapid development in the annotation of human genetic variation has increased the numbers of single nucleotide polymorphisms (SNPs) in candidate genes by several orders of magnitude. The selection of both useful target SNPs for disease-gene association studies and SNPs associated with the treatment response is therefor...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/01.fpc.0000194422.12770.fb
更新日期:2006-03-01 00:00:00
abstract:OBJECTIVE:To investigate the effect of the Taq1A variant in the Dopamine D2 receptor gene (DRD2) and common functional genetic variants in the cytochrome P450 2D6 gene (CYP2D6) on prolactin levels in risperidone-treated boys with autism spectrum disorders and disruptive behavior disorders. METHODS:Forty-seven physical...
journal_title:Pharmacogenetics and genomics
pub_type: 杂志文章
doi:10.1097/FPC.0b013e3283647c33
更新日期:2013-09-01 00:00:00