Exploring Gene-Treatment Interactions: Dissociated Effect of COMT Val108/158Met Genotype on Negative Symptoms Response to Haloperidol and Risperidone Vs Clozapine
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چکیده
Aims: this study aims to evaluate the effect of COMT rs 4680 (Val108/158Met) polymorphism, known to regulate dopamine levels, on specific response pattern to antipsychotics characterized by different dopaminergic activity.
منابع مشابه
COMT val108/158met genotype, cognitive function, and cognitive improvement with clozapine in schizophrenia.
Preliminary evidence suggests that a single nucleotide polymorphism (SNP), the val108/158met SNP, within the gene that codes for catechol-O-methyltransferase (COMT), a key enzyme involved in regulating dopamine (DA) transmission within the prefrontal cortex (PFC), is related to cognitive function in schizophrenia and cognitive improvement with atypical antipsychotic drugs (APDs). Specifically, ...
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BACKGROUND There is a negative association between the use of antipsychotics and cognitive functioning in bipolar patients, which may be mediated by altered dopamine signaling in selected brain areas, and moderation thereof by genetic sequence variation such as COMT Val108/158Met. The interaction between antipsychotic drug use and the COMT Val108/158Met genotype on two-year cognitive functionin...
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INTRODUCTION Green tea(GT) is able to increase energy expenditure(EE) and fat oxidation(FATox) via inhibition of catechol-O-methyl transferase(COMT) by catechins. However, this does not always appear unanimously because of large inter-individual variability. This may be explained by different alleles of the functional COMT Val108/158Met polymorphism that are associated with COMT enzyme activity...
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BACKGROUND Executive control of attention in schizophrenia has recently been assessed by means of the Attention Network Test (ANT). In the past, for tasks assessing executive attention, findings in schizophrenia have been contradictory, among others suggesting a lack of increased stimulus interference effects. Attention and executive functioning are substantially influenced by candidate genes o...
متن کاملCOMT Val Met Genotype Affects Neural but not Cognitive Processing in Healthy Individuals
The relationship between cognition and a functional polymorphism in the catechol-O-methlytransferase (COMT) gene, val108/158met, is one of debate in the literature. Furthermore, based on the dopaminergic differences associated with the COMT val108/ 158met genotype, neural differences during cognition may be present, regardless of genotypic differences in cognitive performance. To investigate th...
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تاریخ انتشار 2015