The relationship of the methylation status and polymorphism of glucocorticoid receptor gene (NR3C1) with attempted suicide or non-suicidal self-injury patients in schizophrenia

Autor: Oyaci, Yasemin, Yildirim, Yusuf Ezel, Aytac, Hasan Mervan, Pehlivan, Sacide, Aydin, Pinar Cetinay
Zdroj: Journal of Investigative Medicine; June 2024, Vol. 72 Issue: 5 p449-456, 8p
Abstrakt: We aim to investigate the methylation of NR3C1gene promotor and NR3C1 BclIpolymorphism in schizophrenia (SCZ) patients with attempted suicide or non-suicidal self-injury (NSSI). A sample of 112 patients with SCZ was included in the study. Structured Clinical Interview for Diagnostic and Statistical Manual-Fourth Edition Axis I Disorders was used to confirm the diagnosis according to The Diagnostic and Statistical Manual of Mental Disorders, fourth edition, text revision criteria. The patients were evaluated by data forms that had sociodemographic, suicidal behavior, and NSSI information. Methylation-specific polymerase chain reaction (PCR) was used to identify the methylation of the NR3C1gene. The analysis of the BclI polymorphism of the NR3C1gene was evaluated by using the PCR restriction fragment length polymorphism. Our results revealed that although the NR3C1 gene methylation was not statistically significantly different, there was a significant difference in NR3C1 genotype distribution among the SCZ groups with and without attempted suicide. SCZ patients carrying the CC genotype had a lower risk of attempted suicide (Odds Ratio [OR]: 0.421; 95% Confidence Interval [CI]: 0.183–0.970; p = 0.040), while having the GG genotype in SCZ patients was associated with a higher risk of attempted suicide (OR: 3.785; 95% Cl: 1.107–12.945; p = 0.042). Additionally, due to NSSI in SCZ patients, there were no significant differences in NR3C1 gene methylation and NR3C1genotype distribution among the groups. We propose that the NR3C1BclI polymorphism may be associated with attempted suicide in Turkish patients diagnosed with SCZ.
Databáze: Supplemental Index