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Related Concept Videos

Toxoplasmosis01:28

Toxoplasmosis

Toxoplasmosis, a zoonotic disease caused by the protozoan Toxoplasma gondii, poses significant public health challenges globally due to its high seroprevalence and varied clinical manifestations. As an obligate intracellular parasite, T. gondii can infect all warm-blooded vertebrates, but felids are its only definitive hosts, shedding unsporulated oocysts into the environment. Humans typically acquire the infection through ingestion of tissue cysts in undercooked meat or oocysts from...
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...
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.
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.
American Trypanosomiasis01:22

American Trypanosomiasis

Chagas disease, or American trypanosomiasis, is a vector-borne parasitic infection caused by Trypanosoma cruzi, a flagellated protozoan (kinetoplastid) of the family Trypanosomatidae. The disease is endemic in Latin America, although cases are increasingly reported worldwide due to human migration. Transmission most commonly occurs when feces of infected triatomine bugs contaminate bite wounds or mucosal surfaces; additional routes include congenital, transfusional, transplant-related, and oral...

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Related Experiment Video

Updated: Jun 20, 2026

3-D Imaging and Analysis of Neurons Infected In Vivo with Toxoplasma gondii
06:33

3-D Imaging and Analysis of Neurons Infected In Vivo with Toxoplasma gondii

Published on: December 9, 2014

[Schizophrenia and toxoplasmosis].

Sarah Dion1, Pierre Guillaume Barbe, Samuel Leman

  • 1Université François Rabelais de Tours, INRA , France. sarah.dion@univ-tours.fr

Medecine Sciences : M/S
|September 22, 2009
PubMed
Summary

Toxoplasma gondii infection may be linked to schizophrenia, a severe psychiatric disorder. Further research into parasite mechanisms could improve diagnosis and treatment for schizophrenia.

Area of Science:

  • Psychiatry and Neuroscience
  • Infectious Diseases
  • Epidemiology

Context:

  • Schizophrenia affects 1% of the global adult population, with unknown etiology.
  • Genetic and environmental factors are implicated, with recent focus on infectious agents.
  • A potential link exists between schizophrenia and Toxoplasma gondii (T. gondii) primo-infection.

Purpose:

  • To explore the association between Toxoplasma gondii infection and schizophrenia.
  • To investigate potential physiopathological mechanisms linking T. gondii to schizophrenia.
  • To assess the relevance of toxoplasmosis research for schizophrenia diagnosis and treatment.

Summary:

  • Epidemiological, behavioral, and neurochemical studies suggest a correlation between schizophrenia and a history of T. gondii infection.

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Forward Genetics Screens Using Macrophages to Identify Toxoplasma gondii Genes Important for Resistance to IFN-γ-Dependent Cell Autonomous Immunity
11:21

Forward Genetics Screens Using Macrophages to Identify Toxoplasma gondii Genes Important for Resistance to IFN-γ-Dependent Cell Autonomous Immunity

Published on: March 12, 2015

Related Experiment Videos

Last Updated: Jun 20, 2026

3-D Imaging and Analysis of Neurons Infected In Vivo with Toxoplasma gondii
06:33

3-D Imaging and Analysis of Neurons Infected In Vivo with Toxoplasma gondii

Published on: December 9, 2014

Forward Genetics Screens Using Macrophages to Identify Toxoplasma gondii Genes Important for Resistance to IFN-γ-Dependent Cell Autonomous Immunity
11:21

Forward Genetics Screens Using Macrophages to Identify Toxoplasma gondii Genes Important for Resistance to IFN-γ-Dependent Cell Autonomous Immunity

Published on: March 12, 2015

  • Limitations include a lack of geographic correlation and direct evidence of T. gondii in schizophrenic patients.
  • Identifying parasite-related mechanisms could enhance understanding of schizophrenia's pathophysiology.

    • Impact:

    • Findings may offer insights into schizophrenia's complex etiology.
    • Research on toxoplasmosis could inform novel diagnostic markers.
    • This line of inquiry may lead to the development of new therapeutic strategies for schizophrenia.