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Psychological and Sociocultural Causes of Schizophrenia01:29

Psychological and Sociocultural Causes of Schizophrenia

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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...
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Schizophrenia, a severe psychiatric disorder, arises from a complex interplay of biological factors, including genetic predisposition, structural brain abnormalities, neurotransmitter dysregulation, and developmental irregularities. These factors collectively contribute to the onset and progression of the disorder, which typically manifests in late adolescence or early adulthood.
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Schizophrenia, a term introduced by Swiss psychiatrist Eugen Bleuler in 1911, describes a severe psychological disorder marked by profound disruptions in attention, thought processes, language, emotion, and interpersonal relationships. The core feature of schizophrenia is psychosis — a state characterized by a fundamental detachment from reality. This disconnection manifests through distorted logic, impaired perception, and atypical behavior, severely affecting the lives of those...
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The term "psychosis" refers to a spectrum of mental disorders characterized by abnormal thoughts, perceptions, and behaviors. It can manifest as mood disorders, dementia, delirium with psychotic features, substance-induced psychosis with psychotic features, brief psychotic disorder, delusional disorder, schizoaffective disorder, and schizophrenia. Among all these disorders, schizophrenia is the most common psychotic disorder, affecting 1% of the worldwide population. Psychotic...
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The advent of drug therapy has profoundly shaped modern mental health care, providing targeted treatments for a range of psychological disorders. Psychotherapeutic drugs, classified into antianxiety, antidepressant, and antipsychotic medications, address symptoms across anxiety disorders, mood disorders, and schizophrenia. While these medications have transformed patient outcomes, they require careful management due to their potential side effects and limitations.
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統合失調症および統合失調症の患者における個別化された形態学的類似性偏差の低減におけるリスペリドン:形態学的類似性偏差と皮質トランスクリプトームパターンの関連性

Liju Liu1,2, Mi Yang3,4, Jinxing Chen1,2

  • 1The Clinical Hospital of Chengdu Brain Science Institute, School of Life Science and Technology, University of Electronic Science and Technology of China, Chengdu, PR China.

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まとめ

統合失調症患者のリスペリドン治療は、正常なパターンに沿って、皮質形態学的類似性偏差(MSD)の偏差を減少させました。これらの構造的変化は、神経伝達と免疫機能に関連する遺伝子発現と相関しており、治療効果の分子基盤を示唆しています。

キーワード:
統合失調症リスペリドン形態学的類似性偏差脳構造遺伝子発現神経伝達免疫機能神経科学精神医学

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科学分野:

  • 神経科学
  • 遺伝学
  • 精神医学

背景:

  • 統合失調症は、皮質厚の減少および遺伝子発現の変化と関連しています。
  • 抗精神病薬治療は、皮質形態および遺伝子発現に影響を与えますが、個々の形態学的類似性および遺伝的メカニズムへの影響は不明です。

研究 の 目的:

  • 個々の形態学的類似性のリスペリドン誘発性変化を定量化すること。
  • これらの変化と皮質トランスクリプトームパターンの空間的整合性を調査すること。

主な方法:

  • 24人の薬物未治療の初回エピソード統合失調症患者および30人の対照群におけるT1強調画像。
  • Wasserstein距離を用いて皮質形態学的類似性行列を計算しました。
  • 形態学的類似性偏差(MSD)を定義しました。
  • 部分最小二乗回帰により、MSDの変化とAllen Human Brain Atlasのトランスクリプトームデータを関連付けました。

主要な成果:

  • 患者は、前頭葉、側頭葉、および側頭頭頂葉領域において、症状の重症度と関連する高いベースラインMSDを示しました。リスペリドン治療は、特にサリエンス/腹側注意ネットワークにおいてMSDを減少し、感情的知性の改善と相関しました。治療誘発性のMSD変化は、アストロサイトおよびオリゴデンドロサイトで発現する神経伝達、細胞接着、および免疫機能の遺伝子と空間的に相関しました。

結論:

  • リスペリドンは、健康なパターンに向かって皮質形態学的類似性を正常化します。
  • これらの構造的正常化効果は、特に神経伝達および免疫プロセスにおける遺伝子発現パターンに関連しています。
  • これは、統合失調症におけるリスペリドンの構造的および認知的利益の分子基盤を示唆しています。