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Toxoplasma gondii & Human Phenotype

Compendium of Known Effects and Ongoing Research

risk behavior

Neurobiological studies on the relationship between toxoplasmosis and neuropsychiatric diseases

October 9, 2015
Fabiani, S., Pinto, B., Bonuccelli, U., Bruschi, F.
Journal of the Neurological Sciences 2015; 35:3-8
Click for abstract
Toxoplasma gondii is a widespread protozoan parasite infecting approximately one third of the world population. After proliferation of tachyzoites during the acute stage, the parasite forms tissue cysts in various anatomical sites including the Central Nervous tissue, and establishes a chronic infection. Clinical spectrum normally ranges from a completely asymptomatic infection to severe multi-organ involvement. Many studies have suggested T. gondii infection as a risk factor for the development of some neuropsychiatric disorders, particularly schizophrenia. During the last years, a potential link with other neurobiological diseases such as Parkinson disease and Alzheimer disease has also been suggested. This review will focus on neurobiological and epidemiological data relating infection with T. gondii to neuropsychiatric diseases. (C) 2015 Elsevier B.V. All rights reserved.

Tagged: 1st-episode schizophrenia, brain, encephalitis, expression, gondii infection, immune-response, kynurenic acid, mechanisms, neurobiology, neurological diseases, neurotransmitter pathway, risk behavior, schizophrenia spectrum disorders, seroprevalence, t. gondii

Mental health

Extraordinary tales parasites hijacking the minds of hosts

May 25, 2015
Bast, F.
Resonance-Journal of Science Education 2015; 20: 893-902
Click for abstract
In the context of biology, parasites are organisms that typically associate with other organisms, their hosts, such that the hosts are damaged while the parasites are benefited. This non-mutual association is known as parasitism. Parasites do not form an evolutionarily distinct group; instead they are part of many different lineages. For example, there are parasites that are protozoa, plants, fungi and animals. Parasitology refers to the study of parasites, with an emphasize on protozoan (single-celled organisms that belong to Kingdom Protista) parasites. This article examines some of the parasites that cause behavioural changes in their host which help the perpetuation of the parasites; either their spread or their lifecycle completion. Specifically, the article examines the tactics of Toxoplasma gondii, lancet liver fluke, guinea worm, the influenza virus, and the parasitic wasp, which are by all means 'evolution's neurobiologists', and are indeed extraordinary in many aspects.

Tagged: amygdala, dicrocoelium, Dopamine, dracunculus, epigenetic remodeling, human-behavior, influenza, polysphincta, risk behavior, Schizophrenia, testosterone, Toxoplasma gondii, tyrosine hydrolase

Behavior

Topics

  • Behavior 105
  • Cognitive functions 64
  • Mental health 439
  • Morphology 6
  • Motor functions 10
  • Personality 36
  • Physical health 134
  • Reproduction 36
  • Reviews 40
  • Sensory functions 3
  • Uncategorized 2

Archives

Recent articles

  • Mortality Patterns of Toxoplasmosis and Its Comorbidities in Tanzania: A 10-Year Retrospective Hospital-Based Survey February 6, 2020
  • The role of latent toxoplasmosis in the aetiopathogenesis of schizophrenia–the risk factor or an indication of a contact with cat? February 6, 2020
  • The Association between Toxoplasma gondii Infection and Risk of Parkinson’s Disease: A Systematic Review and Meta-Analysis February 6, 2020

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