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Related Concept Videos

Biological Causes of Schizophrenia01:29

Biological Causes of Schizophrenia

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 studies.
Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders01:27

Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders

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 the...
Psychological and Sociocultural Causes of Schizophrenia01:29

Psychological and Sociocultural Causes of Schizophrenia

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...
Pharmacogenomics: Identification of New Drug Targets01:29

Pharmacogenomics: Identification of New Drug Targets

Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...
Human Genetics01:28

Human Genetics

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...
Schizophrenia01:17

Schizophrenia

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 diagnosed.

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A Strategy to Identify de Novo Mutations in Common Disorders such as Autism and Schizophrenia
05:51

A Strategy to Identify de Novo Mutations in Common Disorders such as Autism and Schizophrenia

Published on: June 15, 2011

Advances in endophenotyping schizophrenia.

David L Braff1, Tiffany A Greenwood, Neal R Swerdlow

  • 1Department of Psychiatry, University of California at San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0804, USA.

World Psychiatry : Official Journal of the World Psychiatric Association (WPA)
|May 7, 2008
PubMed
Summary
This summary is machine-generated.

Researchers are exploring schizophrenia genetics by studying endophenotypes, which are measurable traits linked to the disorder. Identifying genetic variations (SNPs) associated with these traits can reveal new molecular targets for schizophrenia treatment.

Keywords:
Schizophreniaendophenotypesneurocognitionneurophysiologyvulnerability genes

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Area of Science:

  • Psychiatric Neuroscience
  • Human Genetics
  • Molecular Psychiatry

Background:

  • Schizophrenia's genetic architecture is complex and investigated through various strategies.
  • Endophenotypes, quantifiable intermediate traits, bridge the gap between genes and the disorder.
  • Abnormalities in neurophysiology and neurocognition are observed in schizophrenia patients and their relatives.

Purpose of the Study:

  • To investigate the role of endophenotypes in understanding schizophrenia's genetic basis.
  • To identify specific genetic variations associated with schizophrenia endophenotypes.
  • To pinpoint novel molecular targets for schizophrenia treatment.

Main Methods:

  • Utilizing endophenotypes as a strategy to trace heritability and neurobiology.
  • Analyzing quantifiable traits reflecting intermediate genetic pathways to schizophrenia.
  • Identifying single nucleotide polymorphisms (SNPs) linked to endophenotype abnormalities.

Main Results:

  • Endophenotype abnormalities are present in individuals with schizophrenia and their unaffected relatives.
  • These abnormalities are associated with DNA polymorphisms that confer vulnerability to schizophrenia.
  • The study provides a framework for identifying genetic links to schizophrenia.

Conclusions:

  • Endophenotypes serve as crucial intermediate phenotypes for genetic research in schizophrenia.
  • Identifying SNPs associated with endophenotypes offers a pathway to discovering new molecular targets.
  • This approach can advance the development of targeted treatments for schizophrenia.