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3-D Imaging and Analysis of Neurons Infected In Vivo with Toxoplasma gondii
Published on: December 9, 2014
Association between Toxoplasma gondii infection and coronary atherosclerosis
Samar M Alhusseiny1, Nora E Saleh1, Wafaa M El-Zayady1
1Department of Medical Parasitology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt.
Insights
Toxoplasma gondii infection is common in patients with coronary atherosclerosis, with higher antibody levels observed. This suggests a potential link between toxoplasmosis and heart disease, warranting further investigation into underlying mechanisms.
Area of Science:
- Infectious Diseases
- Cardiovascular Medicine
- Immunology
Background:
- Toxoplasma gondii is a ubiquitous protozoan parasite infecting vertebrate cells.
- Limited data exists on the association between Toxoplasma gondii infection and coronary atherosclerosis.
Purpose of the Study:
- To investigate the prevalence of Toxoplasma gondii infection in patients with coronary atherosclerosis.
- To explore the relationship between T. gondii infection markers and cardiovascular disease indicators.
Main Methods:
- A case-control study involving 320 participants (160 coronary atherosclerosis patients, 160 controls).
- Measurement of anti-T. gondii IgG antibodies via ELISA, serum lipid profiles, and coronary angiograms.
- Analysis of risk factors including dietary habits and environmental exposures.
Main Results:
- Higher seroprevalence (63.1%) of anti-T. gondii antibodies in atherosclerotic patients compared to controls (46.2%).
- Significant differences in lipid profiles (LDL, triglycerides, cholesterol) between groups.
- Positive correlations between T. gondii IgG levels, lipid profiles, disease severity, and affected vessels.
Conclusions:
- Coronary atherosclerosis patients exhibit a high prevalence of T. gondii infection.
- Chronic toxoplasmosis may play a role in the development or progression of coronary atherosclerosis.
- Further research is needed to understand the pathogenic mechanisms involved.
Background:
Toxoplasma gondii is a worldwide protozoon that can infect all nucleated vertebrate cells. Little information is available about the association between T. gondii infection and coronary atherosclerosis.
Methods:
A total of 320 cases were enrolled (160 patients with coronary atherosclerosis and 160 non-atherosclerotic individuals). Blood samples were collected to measure anti-T. gondii immunoglobulin G (IgG) antibodies using enzyme-linked immunosorbent assay (ELISA) and serum lipid profile. Coronary angiogram was also performed.
Results:
The seroprevalence of anti-Toxoplasma antibodies in atherosclerotic and non-atherosclerotic individuals was 63.1% and 46.2%, respectively, with higher levels of anti-T. gondii IgG in atherosclerotic patients. Consumption of contaminated water, unwashed fruits and vegetables and raw meat and contact with soil were significant risk factors for Toxoplasma infection. Significant differences were detected in serum levels of low-density lipoproteins, triglycerides and cholesterol between both groups. Positive correlations were detected between ELISA titres and serum levels of low-density lipoproteins, triglycerides and cholesterol, disease severity and the number of affected vessels. Male gender and contact with soil had a significant association with positive T. gondii serology in atherosclerotic patients.
Conclusions:
Patients with coronary atherosclerosis have a high prevalence of T. gondii infection. More studies are crucial to elucidate the mechanisms underlying the effects of chronic toxoplasmosis on coronary atherosclerosis.
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