Preliminary evidence for persistent abnormalities in amygdala volumes in adolescents and young adults with bipolar disorder

被引:100
作者
Blumberg, HP
Fredericks, C
Wang, F
Kalmar, JH
Spencer, L
Papademetris, X
Pittman, B
Martin, A
Peterson, BS
Fulbright, RK
Krystal, JH
机构
[1] Yale Univ, Sch Med, Dept Psychiat, Mood Disorders Res Program, New Haven, CT 06511 USA
[2] Yale Univ, Sch Med, Dept Diagnost Radiol, Mood Disorders Res Program, New Haven, CT 06511 USA
[3] Vet Affairs Connecticut Healthcare Syst, Dept Psychiat, West Haven, CT USA
[4] Yale Univ, Sch Med, Ctr Child Study, New Haven, CT 06510 USA
[5] Columbia Univ Coll Phys & Surg, Dept Psychiat, New York, NY 10032 USA
关键词
adolescents; amygdala; bipolar disorder; magnetic resonance imaging;
D O I
10.1111/j.1399-5618.2005.00264.x
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Objectives: Abnormalities in volumes of the amygdala have been reported previously in adolescents and adults with bipolar disorder ( BD). Several studies have reported reduced volumes in adolescents with BD; however, both decreases and increases in volumes have been reported in adults with BD. Understanding of potential developmental contributions to these disturbances in morphology of the amygdala has been limited by the absence of longitudinal data in persons with BD. Here we use a within-subject longitudinal design to investigate whether amygdala volume abnormalities persist in adolescents and young adults with BD over a time interval of approximately 2 years. Methods: Participants included 18 adolescents and young adults: 10 participants with BD I and 8 healthy comparison participants. Amygdala volumes were measured on high-resolution magnetic resonance imaging scans acquired twice for each subject over intervals of approximately 2 years. Amygdala volumes were the dependent measures in a mixed-model statistical analysis to compare amygdala volumes between groups over time while covarying for total brain volume. Results: Amygdala volumes were significantly smaller in adolescents and young adults with BD compared with healthy participants (p = 0.018). The effect of time was not significant. Conclusions: Although the sample size is modest, this study provides preliminary evidence to support the presence of decreased amygdala volumes in adolescents and young adults with BD that persist during this developmental epoch.
引用
收藏
页码:570 / 576
页数:7
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