Skip to main content
Top
Published in: European Journal of Clinical Microbiology & Infectious Diseases 2/2019

Open Access 01-02-2019 | Original Article

Presence of Toxoplasma gondii infection in brain as a potential cause of risky behavior: a report of 102 autopsy cases

Authors: Dorota Samojłowicz, Joanna Twarowska-Małczyńska, Aleksandra Borowska-Solonynko, Łukasz A. Poniatowski, Nipika Sharma, Mieszko Olczak

Published in: European Journal of Clinical Microbiology & Infectious Diseases | Issue 2/2019

Login to get access

Abstract

Toxoplasmosis was linked to impairment in brain function, encompassing a wide range of behavioral and neuropsychiatric changes. Currently, the precise localization of Toxoplasma gondii in the human brain is limited and the parasite DNA was not found in population-based screening of autopsy cases. The aim of proposed study was to identify the presence of parasite DNA within the brain and its association with risky behavior and alcohol consumption in postmortem examination. Preliminarily, 102 cases with certain circumstances of death at time of forensic autopsy was included. Due to high risk of bias, the females were excluded from the analysis and final study group consists 97 cases divided into three groups: risky behavior, inconclusively risky behavior, and control group. The obtained tissue samples for Nested PCR covered four regions of the brain: symmetric left/right and anterior/posterior horns of lateral ventricles comprising lining ependyma and hippocampus. The second type of material comprised blood evaluated for antibodies prevalence using ELISA and alcohol concentration using HS-GC-FID. Analysis demonstrated 16.5% prevalence concerning the parasite DNA presence in examined brain tissue samples without specific distribution and association with age at death or days after death until an autopsy was performed. Results have shown correlation between occurrence of risky behavior leading to death and higher proportions of positive parasite DNA presence within the brain. Correlation was not observed between parasite DNA presence and excessive alcohol consumption. Conducted screening demonstrated correlation between parasite DNA presence in the brain with risky behavior and provided new information on possible effects of latent toxoplasmosis.
Literature
14.
go back to reference Flegr J, Preiss M, Klose J, Havlícek J, Vitáková M, Kodym P (2003) Decreased level of psychobiological factor novelty seeking and lower intelligence in men latently infected with the protozoan parasite Toxoplasma gondii Dopamine, a missing link between schizophrenia and toxoplasmosis? Biol Psychol 63(3):253–268. https://doi.org/10.1016/S0301-0511(03)00075-9 CrossRefPubMed Flegr J, Preiss M, Klose J, Havlícek J, Vitáková M, Kodym P (2003) Decreased level of psychobiological factor novelty seeking and lower intelligence in men latently infected with the protozoan parasite Toxoplasma gondii Dopamine, a missing link between schizophrenia and toxoplasmosis? Biol Psychol 63(3):253–268. https://​doi.​org/​10.​1016/​S0301-0511(03)00075-9 CrossRefPubMed
20.
go back to reference Hermes G, Ajioka JW, Kelly KA, Mui E, Roberts F, Kasza K, Mayr T, Kirisits MJ, Wollmann R, Ferguson DJ, Roberts CW, Hwang JH, Trendler T, Kennan RP, Suzuki Y, Reardon C, Hickey WF, Chen L, McLeod R (2008) Neurological and behavioral abnormalities, ventricular dilatation, altered cellular functions, inflammation, and neuronal injury in brains of mice due to common, persistent, parasitic infection. J Neuroinflammation 5:48. https://doi.org/10.1186/1742-2094-5-48 CrossRefPubMedPubMedCentral Hermes G, Ajioka JW, Kelly KA, Mui E, Roberts F, Kasza K, Mayr T, Kirisits MJ, Wollmann R, Ferguson DJ, Roberts CW, Hwang JH, Trendler T, Kennan RP, Suzuki Y, Reardon C, Hickey WF, Chen L, McLeod R (2008) Neurological and behavioral abnormalities, ventricular dilatation, altered cellular functions, inflammation, and neuronal injury in brains of mice due to common, persistent, parasitic infection. J Neuroinflammation 5:48. https://​doi.​org/​10.​1186/​1742-2094-5-48 CrossRefPubMedPubMedCentral
37.
44.
go back to reference Schlüter D, Kaefer N, Hof H, Wiestler OD, Deckert-Schlüter M (1997) Expression pattern and cellular origin of cytokines in the normal and toxoplasma gondii-infected murine brain. Am J Pathol 150(3):1021–1035PubMedPubMedCentral Schlüter D, Kaefer N, Hof H, Wiestler OD, Deckert-Schlüter M (1997) Expression pattern and cellular origin of cytokines in the normal and toxoplasma gondii-infected murine brain. Am J Pathol 150(3):1021–1035PubMedPubMedCentral
52.
go back to reference Skallová A, Novotná M, Kolbeková P, Gasová Z, Veselý V, Sechovská M, Flegr J (2005) Decreased level of novelty seeking in blood donors infected with Toxoplasma. Neuro Endocrinol Lett 26(5):480–486PubMed Skallová A, Novotná M, Kolbeková P, Gasová Z, Veselý V, Sechovská M, Flegr J (2005) Decreased level of novelty seeking in blood donors infected with Toxoplasma. Neuro Endocrinol Lett 26(5):480–486PubMed
54.
go back to reference Novotná M, Hanusova J, Klose J, Preiss M, Havlicek J, Roubalová K, Flegr J (2005) Probable neuroimmunological link between Toxoplasma and cytomegalovirus infections and personality changes in the human host. BMC Infect Dis 5(54). https://doi.org/10.1186/1471-2334-5-54 Novotná M, Hanusova J, Klose J, Preiss M, Havlicek J, Roubalová K, Flegr J (2005) Probable neuroimmunological link between Toxoplasma and cytomegalovirus infections and personality changes in the human host. BMC Infect Dis 5(54). https://​doi.​org/​10.​1186/​1471-2334-5-54
59.
go back to reference Kocazeybek B, Oner YA, Turksoy R, Babur C, Cakan H, Sahip N, Unal A, Ozaslan A, Kilic S, Saribas S, Aslan M, Taylan A, Koc S, Dirican A, Uner HB, Oz V, Ertekin C, Kucukbasmaci O, Torun MM (2009) Higher prevalence of toxoplasmosis in victims of traffic accidents suggest increased risk of traffic accident in toxoplasma-infected inhabitants of Istanbul and its suburbs. Forensic Sci Int 187(1–3):103–108. https://doi.org/10.1016/j.forsciint.2009.03.007 CrossRefPubMed Kocazeybek B, Oner YA, Turksoy R, Babur C, Cakan H, Sahip N, Unal A, Ozaslan A, Kilic S, Saribas S, Aslan M, Taylan A, Koc S, Dirican A, Uner HB, Oz V, Ertekin C, Kucukbasmaci O, Torun MM (2009) Higher prevalence of toxoplasmosis in victims of traffic accidents suggest increased risk of traffic accident in toxoplasma-infected inhabitants of Istanbul and its suburbs. Forensic Sci Int 187(1–3):103–108. https://​doi.​org/​10.​1016/​j.​forsciint.​2009.​03.​007 CrossRefPubMed
Metadata
Title
Presence of Toxoplasma gondii infection in brain as a potential cause of risky behavior: a report of 102 autopsy cases
Authors
Dorota Samojłowicz
Joanna Twarowska-Małczyńska
Aleksandra Borowska-Solonynko
Łukasz A. Poniatowski
Nipika Sharma
Mieszko Olczak
Publication date
01-02-2019
Publisher
Springer Berlin Heidelberg
Published in
European Journal of Clinical Microbiology & Infectious Diseases / Issue 2/2019
Print ISSN: 0934-9723
Electronic ISSN: 1435-4373
DOI
https://doi.org/10.1007/s10096-018-3427-z

Other articles of this Issue 2/2019

European Journal of Clinical Microbiology & Infectious Diseases 2/2019 Go to the issue
Live Webinar | 27-06-2024 | 18:00 (CEST)

Keynote webinar | Spotlight on medication adherence

Live: Thursday 27th June 2024, 18:00-19:30 (CEST)

WHO estimates that half of all patients worldwide are non-adherent to their prescribed medication. The consequences of poor adherence can be catastrophic, on both the individual and population level.

Join our expert panel to discover why you need to understand the drivers of non-adherence in your patients, and how you can optimize medication adherence in your clinics to drastically improve patient outcomes.

Prof. Kevin Dolgin
Prof. Florian Limbourg
Prof. Anoop Chauhan
Developed by: Springer Medicine
Obesity Clinical Trial Summary

At a glance: The STEP trials

A round-up of the STEP phase 3 clinical trials evaluating semaglutide for weight loss in people with overweight or obesity.

Developed by: Springer Medicine

Highlights from the ACC 2024 Congress

Year in Review: Pediatric cardiology

Watch Dr. Anne Marie Valente present the last year's highlights in pediatric and congenital heart disease in the official ACC.24 Year in Review session.

Year in Review: Pulmonary vascular disease

The last year's highlights in pulmonary vascular disease are presented by Dr. Jane Leopold in this official video from ACC.24.

Year in Review: Valvular heart disease

Watch Prof. William Zoghbi present the last year's highlights in valvular heart disease from the official ACC.24 Year in Review session.

Year in Review: Heart failure and cardiomyopathies

Watch this official video from ACC.24. Dr. Biykem Bozkurt discusses last year's major advances in heart failure and cardiomyopathies.