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Developing a Rat Model for Bipolar Disorder
Published on: May 2, 2025
Differences in Psychopathology between Offspring of Parents with Bipolar I Disorder and Those with Bipolar II
Hyeon-Ah Lee1, Ji-Sun Kim1, Yeon-Jung Lee2
1Department of Psychiatry, Cheonan Hospital, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea.
Objective:
The aim of this study was to evaluate differences in psychopathology between offspring of parents with bipolar I disorder (BP-I) and those with bipolar II disorder (BP-II).
Methods:
The sample included 201 offspring between 6 and 17 years of age who had at least one parent with BP-I or BP-II. The offspring were diagnostically evaluated using the Korean Kiddie-Schedule for Affective Disorders and Schizophrenia-Present and Lifetime Version. Psychopathology and Clinical characteristics were evaluated, including lifetime DSM-5 diagnoses, depression, and childhood trauma. Lifetime DSM-5 diagnoses were also compared between schoolchildren aged 6 to 11 years and adolescents aged 12 to 17 years.
Results:
In lifetime DSM-5 diagnoses, offspring of parents with BP-I had significantly increased risk of developing MDD and BP-I than those with BP-II. Regarding clinical characteristics, ADHD rating scale and childhood trauma scale were significantly higher in offspring of parents with BP-I than that in those with BP-II.
Conclusion:
The present study supports that BP-I may be etiologically distinct from BP-II by a possible genetic liability. Our findings indicate that additional research related to bipolar offspring is needed to enhance understanding of differences between BP-I and BP-II.
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