Psychiatric comorbidity in pathological gamblers seeking treatment

Area of Science:

• Neuroscience
• Psychiatry
• Genetics

Background:

• Pathological gambling is a complex disorder.
• Comorbid psychiatric conditions are frequently observed in individuals with gambling disorder.
• Understanding the genetic underpinnings of comorbidity is crucial for effective treatment.

Purpose of the Study:

• To ascertain the prevalence of psychiatric comorbidity in individuals seeking treatment for pathological gambling.
• To compare the severity of gambling disorder and psychological distress between gamblers with and without comorbid psychiatric conditions.
• To examine genetic variations in the dopamine D(2) receptor gene (DRD(2)) associated with psychiatric comorbidity in pathological gamblers.

Main Methods:

• Sixty-nine treatment-seeking pathological gamblers were recruited.
• Evaluations included structured interviews, self-report questionnaires, and psychological scales.
• Participants were genotyped for a dopamine D(2) receptor gene (DRD(2)) polymorphism.

Main Results:

• Over 62% of pathological gamblers presented with at least one comorbid psychiatric disorder.
• Personality disorders, alcohol abuse/dependence, and adjustment disorders were the most frequent comorbidities.
• Gamblers with comorbid disorders exhibited significantly higher scores for gambling severity and psychopathology.
• Significant differences in DRD(2) allele distribution were observed between gamblers with and without comorbid disorders.

Conclusions:

• Psychiatric comorbidity is highly prevalent in pathological gambling and exacerbates clinical severity.
• The dopamine D(2) receptor gene (DRD(2)) may represent a genetic risk factor for developing psychiatric comorbidity in pathological gambling.