青春期における特質の内化と外化: 症状の集団を区別するために表遺伝学と周産期リスクを使用する
Maddalena Mauri1, Silvia Grazioli2,3, Carolina Bonivento4
1Child Psychopathology Unit, Scientific Institute, IRCCS Eugenio Medea, 23842 Bosisio Parini, Italy.
Biomolecules
|August 28, 2025
まとめ
高度な内化・外化問題を有する青年は 胎内合併症や 重要な遺伝子のDNAメチル化が変化したことを示した. 早期の有害事象は,思春期の精神病変と表遺伝的変化に関連しています.
科学分野:
- 発達心理学
- 分子精神医学
- 行動 の 遺伝
背景:
- 青春期は 行動問題を内面化したり 外面化したりする 重要な時期です
- 明確な精神病学的プロファイルとその基礎となる生物学的メカニズムを理解することは,標的型の介入にとって極めて重要です.
- 環境要因と表遺伝的変異は,精神病理学への重要な貢献者としてますます認識されています.
研究 の 目的:
- 青少年の内向化と外向化の特徴を特定する.
- 特定されたクラスターと環境リスク要因との関連を調べる.
- エピジェネティックプロファイル,特にDNAメチレーションの違いを調査する.
主な方法:
- 205人の青少年を対象とした横断的な研究
- 子供の行動チェックリスト/6-18 (CBCL) を用いて行動問題を評価した.
- クラスター分析に使用される有限混合物モデリング;グループ比較のための χ2テストとボンフェロニ修正のtテスト.
主要な成果:
- 2つの青少年の精神病理学クラスターが特定されました. LOW (サブクリニック症状) とHIGH (高度な内部化/外部化症状).
- HIGH群では 妊娠中の合併症が 顕著に増加した.
- HIGHクラスターでは,脳由来神経栄養因子 (BDNF),インスリン類似成長因子-2 (IGF2) およびオキシトシン受容体 (OXTR) のCpG部位のメチル化が変化したが,FKBP5は変化しなかった.
結論:
- 早期の有害事象,DNAメチル化パターン,青少年の精神病理学との間に強い関連性がある.
- BDNF,IGF2,OXTRのような遺伝子の特定の改変が 早期の逆境と行動障害の関連を媒介する可能性があります
- これらの発見は 十代の行動の問題の発達における 環境と表遺伝子因子の相互作用を 強調しています
関連する概念動画
Human Genetics
716
Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
The complex relationship between genetics and psychology is observable through common biological components such...
716
Psychological and Sociocultural Causes of Schizophrenia
185
Schizophrenia, a complex psychiatric disorder, has been historically misunderstood. Early psychological theories attributed its origins to childhood trauma and unresponsive parenting. However, contemporary research largely rejects these notions, favoring the vulnerability-stress hypothesis. This model proposes that individuals with a genetic predisposition to schizophrenia may develop the disorder following exposure to significant environmental stressors. Notably, studies on high-risk...
185
Ethnic Identity within a Larger Culture
85
Adolescents from ethnic minority backgrounds face a multifaceted journey in forming their identities, shaped by the intersections of cultural expectations and personal exploration. For these adolescents, identity formation involves not only typical developmental challenges but also navigating the perceptions and attitudes of the majority culture. As they grow, adolescents in ethnic minority groups often become increasingly aware of stereotypes, social biases, and discrimination, all of which...
85
Behavioral Genetics and Its Designs
505
Behavior genetics explores how genetic inheritance influences human behavior. It focuses on how genes, passed from parents to offspring, contribute to the development of behavioral traits and tendencies. This branch of genetics seeks to understand the complex interplay between inherited genetic factors and environmental influences in shaping our behaviors.
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
505
Personality Theory by Eysenck and Eysenck
657
Hans and Sybil Eysenck developed a widely recognized theory of personality, which emphasizes the role of temperament and genetically based differences in shaping individual traits. Their theory posits that biological factors primarily determine personality and can be understood through two main dimensions: extroversion/introversion and neuroticism/stability.
In the extroversion/introversion dimension, highly extroverted people are sociable, outgoing, and easily connect with others. In contrast,...
In the extroversion/introversion dimension, highly extroverted people are sociable, outgoing, and easily connect with others. In contrast,...
657
Socioemotional Development during Infancy
115
Socio-emotional development in infancy is primarily shaped by early emotional responses and social connections, with temperament playing a central role. Temperament refers to the consistent patterns in an individual's emotional and behavioral responses, observable even in infancy. By examining temperament, researchers can better understand an infant's unique ways of interacting with the world, influencing subsequent personality and socio-emotional growth.
Primary Temperament Types
Primary Temperament Types
115


