Introduction: This study investigates the relationship between NQO1 and NQO2 gene polymorphisms and methamphetamine-associated psychosis (MAP) in the Makassar population.
Methods: Case-Control Study to determine the role of the NQO1 and NQO2 genes in the onset of psychotic symptoms due to methamphetamine abuse. The control group consists of individuals who consume methamphetamine without psychotic characteristics (n=139), while the case group consists of individuals who consume methamphetamine with psychotic characteristics (n=128).
Results: The NQO1 gene polymorphism demonstrates a significant association with the duration of MAP, with the TT genotype and the T allele occurs more frequently in prolonged cases. The CT genotype is linked to an increased risk of spontaneous relapse, while the TT genotype is more prevalent among patients with polysubstance abuse. Additionally, the NQO2 (I/D) gene polymorphism indicates a trend towards differential genotype distribution in patients with MAP, with the DD genotype appearing more frequently in prolonged cases, and the I allele associated with a heightened risk of spontaneous relapse.
Conclusion: These findings suggest that polymorphisms in the NQO1 and NQO2 genes may play a role in the susceptibility to and clinical manifestations of MAP within the Makassar population.
Keywords: Methamphetamine, NQO1, NQO2 gene, psychosis