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Related Concept Videos

Biological Causes of Schizophrenia01:29

Biological Causes of Schizophrenia

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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.
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin...
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Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders01:27

Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders

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Schizophrenia is a neurodevelopmental disorder whose origins are rooted in complex genetic components. Despite our burgeoning understanding, the pathophysiology of this disorder remains incompletely deciphered.
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within...
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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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Human Genetics01:28

Human Genetics

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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...
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Genome-wide Association Studies-GWAS01:11

Genome-wide Association Studies-GWAS

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Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
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Schizophrenia01:17

Schizophrenia

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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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A Strategy to Identify de Novo Mutations in Common Disorders such as Autism and Schizophrenia
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Genomic insights into schizophrenia.

Michael J Owen1

  • 1Centre for Neuropsychiatric Genetics and Genomics, Neuroscience and Mental Health Innovation Institute and Division of Psychological Medicine and Clinical Neurosciences, Cardiff University, Cardiff CF10 3AT, UK.

Royal Society Open Science
|February 27, 2023
PubMed
Summary
This summary is machine-generated.

Genomics research has identified schizophrenia risk alleles, revealing its origins in developmental and synaptic disturbances. This advances understanding and offers solutions to evolutionary questions surrounding the disorder.

Keywords:
evolutiongenomicsneurobiologyneurodevelopmentschizophrenia

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Area of Science:

  • Psychiatry
  • Genetics
  • Neuroscience

Background:

  • Schizophrenia is a complex psychiatric disorder with significant societal impact.
  • Understanding its mechanisms and identifying therapeutic targets remains challenging.
  • Genomics offers a promising avenue for unraveling schizophrenia's complexities due to its high heritability.

Purpose of the Study:

  • To leverage genomics for a deeper understanding of schizophrenia's underlying mechanisms.
  • To identify genetic risk factors and their etiological implications.
  • To explore the relationship between schizophrenia and other psychiatric/neurodevelopmental disorders.

Main Methods:

  • Genome-wide association studies (GWAS) to identify common and rare risk alleles.
  • Analysis of genomic data to infer etiological relationships with other disorders.
  • Integration of findings to understand the broader impact on brain function.

Main Results:

  • Identification of numerous common and rare genetic risk variants for schizophrenia.
  • Genomic evidence linking schizophrenia to neurodevelopmental disturbances.
  • Findings suggest widespread neuronal and synaptic dysfunction rather than region-specific deficits.
  • Genomic insights provide a potential explanation for the persistence of schizophrenia across generations.

Conclusions:

  • Genomics is crucial for understanding schizophrenia's etiology and pathophysiology.
  • Schizophrenia likely arises from early neurodevelopmental disruptions affecting neuronal and synaptic function.
  • Genomic approaches offer new therapeutic targets and resolve evolutionary paradoxes.