Boong Nyun Kim

BACKGROUND: The purpose of this study was to investigate the association between the ionotropic and glutamate receptors, N-methyl D-asparate 2A (GRIN2A) and 2B (GRIN2B), and the metabotropic glutamate receptor mGluR7 (GRM7) gene polymorphisms and attention-deficit hyperactivity disorder (ADHD) in Korean population. METHODS: We conducted a case-control analysis of 202 ADHD subjects and 159 controls, performed a transmission disequilibrium test (TDT) on 149 trios, and compared scores from the cont

All bisphenols, in particular those at or above the LOD or median levels, were associated with ADHD symptoms at age 6. Further prospective studies are warranted to determine causal inference.

BACKGROUND: Although attention-deficit/hyperactivity disorder (ADHD) symptoms were identified as a key risk factor for Internet gaming disorder (IGD), the effect of ADHD comorbidity on longitudinal course of IGD in the clinical population remains to be further examined. This study aimed to investigate whether ADHD comorbidity in IGD patients affects the recovery, recurrence rates, and trajectories of IGD symptoms, and examine the relationship between the changes in IGD and ADHD symptoms. METHODS

Multi-pollutant mixtures of prenatal and postnatal exposures to four metals affected child IQ at 6 years of age. We found a relationship between manganese exposure at both age 4, and 6 years and children's IQ. Additional studies are warranted to confirm these associations and to control the exposure to different metals during pregnancy and preschool childhood.

BACKGROUND: Phthalates are synthetic chemicals with endocrine-disrupting properties. They are reportedly associated with various neurotoxic outcomes. Studies on exposure to phthalates and children's autistic traits have shown inconsistent results with respect to sex and susceptible time periods. We investigated the association of phthalate exposure during the prenatal period and childhood with autistic traits over time using a birth cohort in South Korea. METHODS: Five phthalate metabolites were

The association of sexual victimization with self-esteem, depression, and problematic internet use was examined in Korean adolescents. A total of 695 middle and high school students were recruited (413 boys, 282 girls, mean age, 14.06±1.37 years). The participants were administered the Early Trauma Inventory Self Report-Short Form (ETISR-SF), Rosenberg's Self-Esteem Scale (RSES), the Children's Depression Inventory (CDI), and Young's Internet Addiction Test (IAT). The associations between sexual

Although there is some evidence supporting the existence of an association between prenatal maternal or postnatal child's urine phthalate metabolite concentrations and poor attentional performances, the interaction between urine phthalate metabolite levels and genetic variation for neuropsychological deficit of attention-deficit hyperactivity disorder (ADHD) has not been examined. The aim of this study was to determine whether phthalate metabolites in urine are associated with poor neuropsycholo