Variant Gene Risk Allele Score vda Association Type Original DB Sentence supporting the association PMID PMID Year
dbSNP: rs165599
rs165599
0.100 GeneticVariation BEFREE Unfortunately, these studies have produced conflicting results.In a previous report, Shifman et al. found a three-marker haplotype (rs737865-rs4680-rs165599) that showed significant association with schizophrenia. 17427186

2007

dbSNP: rs165599
rs165599
0.100 GeneticVariation BEFREE To assess the genetic contribution of other COMT variants to SZ susceptibility, we investigated three single-nucleotide polymorphisms (SNPs) (rs737865, rs4633, rs165599) in addition to the Val/Met variant (rs4680) in a highly selected sample of Australian Caucasian families containing 107 patients with SZ. 15505638

2005

dbSNP: rs165599
rs165599
0.100 GeneticVariation BEFREE We find that P50 and PPI may be influenced by COMT rs4680 polymorphisms in schizophrenia; more excitingly, we find that P50 might be influenced by COMT rs737865 polymorphisms and PPI may be influenced by COMT rs165599 polymorphisms in schizophrenia, and their mutations are associated with the reduction of the risk of P50 or PPI defects in schizophrenia. 23598060

2013

dbSNP: rs165599
rs165599
0.100 GeneticVariation BEFREE We found a significant association of rs737865, with the GG genotype exerting a protective effect and the GA haplotype (rs4680/rs165599) exerting a risk effect for schizophrenia. 28273278

2017

dbSNP: rs165599
rs165599
0.100 GeneticVariation BEFREE To assess this view, the authors conducted a case-control association study (399 patients with schizophrenia and 440 control subjects) for five functional polymorphisms (rs2075507, rs737865, rs6267, rs4680 and rs165599) in Japanese subjects. 17482701

2007

dbSNP: rs165599
rs165599
0.100 GeneticVariation BEFREE Using the NIMH sibling study (SS), a non-independent case-control set, and an independent German (G) case-control set, we performed conditional/unconditional logistic regression to test for epistasis between SNPs in COMT (rs2097603, Val158Met (rs4680), rs165599) and polymorphisms in other schizophrenia susceptibility genes. 17006672

2007

dbSNP: rs165599
rs165599
0.100 GeneticVariation BEFREE The SNP rs165599, which has been mapped to the 3'-UTR region of the COMT gene, was significantly associated with schizophrenia in our family study, and possibly associated with the age of onset, delusion/hallucination symptom dimension, and CPT performance. 19369177

2009

dbSNP: rs165599
rs165599
0.100 GeneticVariation BEFREE In this updated meta-analysis, no evidence was found for an association between Val108/158Met polymorphisms, rs6267, rs165599, and haplotypes (rs7378655-rs4680-rs165599) and schizophrenia, although rs2075507 and rs737865 showed trends for significance in allele-wise analyses (P=0.039 in a multiplicative model, P=0.025 in a recessive model for rs2075507, P=0.018 in a dominant model for rs737865, uncorrected). 19329282

2009

dbSNP: rs165599
rs165599
0.100 GeneticVariation BEFREE Thus, in the sample studied, there was no evidence of any association between schizophrenia and rs165599 (A/G) polymorphism in the non-coding region 3' of the COMT gene. 23295417

2012

dbSNP: rs165599
rs165599
0.100 GeneticVariation BEFREE A recent study found, in a large sample of Ashkenazi Jews, a highly significant association between schizophrenia and a particular haplotype of three polymorphic sites in the catechol-O-methyl transferase, COMT, gene: an IVS 1 SNP (dbSNP rs737865), the exon 4 functional SNP (Val158Met, dbSNP rs165688), and a downstream SNP (dbSNP rs165599). 15098000

2004

dbSNP: rs165599
rs165599
0.100 GeneticVariation BEFREE The COMT gene rs165599 SNP does not appear to be a single-risk factor for schizophrenia. 30165727

2018

dbSNP: rs749437638
rs749437638
0.050 GeneticVariation BEFREE MTHFR C677T and COMT Val158Met interact with CA to increase risk of schizophrenia. 28556887

2017

dbSNP: rs749437638
rs749437638
0.050 GeneticVariation BEFREE We examined the prevalence of the catechol-O-methyltransferase (COMT) 324G>A (Val108/158Met) and methylenetetrahydrofolate reductase (MTHFR) 677C>T polymorphisms in 252 patients with schizophrenia and 405 control subjects.All subjects were of Dutch ancestry. 17716874

2008

dbSNP: rs749437638
rs749437638
0.050 GeneticVariation BEFREE A second polymorphism, methylenetetrahydrofolate reductase (MTHFR) 677C --> T (rs1801133), has been associated with overall schizophrenia risk and executive function impairment in patients, and may influence dopamine signaling through mechanisms upstream of COMT effects. 18988738

2008

dbSNP: rs749437638
rs749437638
0.050 GeneticVariation BEFREE A functional interaction between Catechol-O-Methyltransferase (COMT) Val158Met and methylenetetrahydrofolate reductase (MTHFR) C677T has been shown to differentially affect cognition in patients with schizophrenia and healthy controls; the effect of COMT Val158Met × MTHFR interaction on resilience to stress in patients and controls remains to be examined. 22128864

2012

dbSNP: rs749437638
rs749437638
0.050 GeneticVariation BEFREE Interactive effects of COMT Val108/158Met and MTHFR C677T on executive function in schizophrenia. 18186041

2008

dbSNP: rs165655
rs165655
0.010 GeneticVariation BEFREE The PCR-based restriction fragment length polymorphism (PCR-RFLP) analysis was used to detect three single nucleotide polymorphisms (SNPs), rs165655 (A/G base change) and rs165815 (C/T base change) present in the ARVCF (armadillo repeat gene deletion in velocardiofacial syndrome) locus, and rs756656 (A/C base change) in the LOC128979 (expressed sequence tags, EST) locus, among 100 Chinese family trios consisting of fathers, mothers and affected offspring with schizophrenia. 15861775

2005

dbSNP: rs9332377
rs9332377
0.010 GeneticVariation BEFREE Eight SNPs were nominally associated with SZ in either case-control or family based analyses (p < 0.05, rs7631540 and rs2046496 in DRD3; rs363399 and rs10082463 in SLC18A2; rs4680, rs4646315 and rs9332377 in COMT). rs6271 at DBH was associated in both analyses. 23932573

2013

dbSNP: rs165774
rs165774
0.040 GeneticVariation BEFREE Individuals with schizophrenia were more than twice as likely to carry the GG genotype compared to the AA genotype for both the rs165774 and rs4680 SNPs. 20934310

2012

dbSNP: rs165774
rs165774
0.040 GeneticVariation BEFREE Individuals with schizophrenia were more than twice as likely to carry the GG genotype compared to the AA genotype for both the rs165774 and rs4680 SNPs. 22208661

2011

dbSNP: rs165774
rs165774
0.040 GeneticVariation BEFREE The second-stage study showed that intronic SNP rs165774 (χ(2)  = 8.327, P = 0.0039), CNV6 (χ(2)  = 19.66, P = 0.00005), and CNV8 (χ(2)  = 16.57, P = 0.00025) were significantly associated with schizophrenia. 26852906

2016

dbSNP: rs165774
rs165774
0.040 GeneticVariation BEFREE Remarkably, alleles of <i>COMT</i> rs165774 (G), <i>DRD2</i> rs6277 (T), and <i>DRD3</i> rs6280 (C) were associated with raised predisposition to schizophrenia (all <i>P</i><0.001). 29255361

2017

dbSNP: rs165656
rs165656
0.010 GeneticVariation BEFREE Based on allele and genotype frequencies in both groups, we found no significant association of DRD3 Ser9Gly polymorphisms and COMT (rs165656) with schizophrenia in Malays. 21948748

2011

dbSNP: rs4680
rs4680
0.100 GeneticVariation BEFREE The association of SNP rs4680 with schizophrenia did not remain significant after adjusting for multiple testing. 19290789

2009

dbSNP: rs4680
rs4680
0.100 GeneticVariation BEFREE In the present study, we analyzed the interaction between pharmacological treatment (clozapine vs typical/atypical D2 blockers) and COMT rs4680 polymorphism on cognitive changes after cognitive remediation therapy, in a sample of 98 clinically stabilized patients with schizophrenia. 24656901

2014