境界性パーソナリティ障害の青少年におけるトリプルネットワークと報酬ネットワークの機能的断絶
Li-Chi Chen1, Li-Kai Cheng2, Ju-Wei Hsu3
1Department of Psychiatry, Taipei Veterans General Hospital, Taipei, Taiwan; Division of Psychiatry, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department of Psychiatry, Cheng Hsin General Hospital, Taipei, Taiwan.
Journal of affective disorders
|September 6, 2025
まとめ
青春期の境界性パーソナリティ障害 (BPD) は後部デフォルトモードネットワーク (DMN) の接続性の増加を示しています. 青少年における気分障害は,前面のDMNと突起ネットワークの領域における広範囲にわたる低接続性に関連しています.
科学分野:
- 神経科学
- 精神科
- 発達心理学
背景:
- 青少年における境界性人格障害 (Borderline personality disorder,BPD) はしばしば気分障害と併発する.
- 青年のBPDにおける脳のネットワークの機能的な接続性の役割はよく理解されていません.
- 関連する特定のネットワークには,デフォルトモードネットワーク (DMN),サライエンスネットワーク (SAN),フロントパリエタルネットワーク (FPN),および報酬ネットワークが含まれます.
研究 の 目的:
- BPDの青少年におけるDMN,SAN,FPN,および報酬ネットワークの機能的接続性の違いを調査する.
- 青少年における BPD の潜在的神経生物学的マーカーを特定する
- 共同発症性気分障害が 脳ネットワークに与える影響を調べるためでした
主な方法:
- 休息状態の機能的接続性磁気共鳴画像 (rs-fMRI) が使用されました.
- 主要な脳の領域にシードベースの機能的接続性 (SBFC) 分析が行われました.
- 参加者には,BPDと併発性気分障害の青少年,気分障害のみの青少年,そして健康な対照群が含まれていました.
主要な成果:
- 前頭前皮質 (MPFC),後頭帯状皮質 (PCC),前頭帯状皮質,前頭島 (AI),前頭前皮質 (RPFC),および内核 (NAc) に関する機能的接続性の有意な差異が観察されました.
- BPDの青年は,PCC (後部DMN) でより高い機能的接続性 (FC) を示した.
- 両方の気分障害グループは,MPFC,ACC,AI,RPFC,NAcで機能的低接続性を示した.
結論:
- 後部 DMN 接続性の増加は BPD のニューロマーカーとして機能し,社会的処理中の過剰活性化を潜在的に反映します.
- 前部のDMNとSAN領域における広範な機能的低接続性は,思春期の気分障害と関連しています.
- これらの発見は,青少年におけるBPDおよび併発性気分障害の 明確なネットワーク変化を強調しています.
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