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Infectious Agents and Stroke: A Systematic Review
Alia Saberi1, Shahin Akhondzadeh2, Samira Kazemi3
1Department of Neurology, Neuroscience Research Center, Poursina Hospital, School of Medicine, Guilan University of Medical Sciences, Rasht, Iran.
Introduction:
A major cause of injury and the second cause of death worldwide is stroke. Among several infectious agents considered as the risk factor of stroke, some pathogens demonstrated stronger robust associations with stroke. Proposing an accurate correlation between infectious microorganisms and stroke provides valuable information for early intervention and control of the infections.
Methods:
In this study, we searched the literature using the Web of Science, PMC/Medline via PubMed, and Scopus databases up to July 2018 without time and language restrictions. After quality assessment, 16 articles were included in the study. The whole data extraction process was independently conducted by two reviewers.
Results:
Based on the results of the studies, viruses, such as Hepatitis C virus (HCV), Hepatitis B virus (HBV), Human Immunodeficiency Virus (HIV), Herpes Simplex Virus Type-1, 2 (HSV-1, 2), Varicella-Zoster Virus (VZV or Chickenpox), and West Nile virus (WNV) seem to be common causes of ischemic stroke. Moreover, the association of other microbial categories, such as Streptococcus mutans (in bacteria), Toxocara spp. and Toxoplasma gondii (in parasites), and Rhizopus sp. (in fungi) with stroke was reported.
Conclusion:
Considering the adverse role of the above-mentioned microorganisms, it is necessary to implement some preventive measures for stroke treatment.
Insights
Infectious agents like viruses (HCV, HBV, HIV), bacteria (Streptococcus mutans), parasites (Toxocara, Toxoplasma), and fungi (Rhizopus) are linked to stroke. Understanding these pathogen-stroke associations aids in infection control and stroke prevention.
Area of Science:
- Infectious diseases
- Neurology
- Public Health
Background:
- Stroke is a leading cause of death and disability globally.
- Infectious agents are increasingly recognized as potential stroke risk factors.
- Identifying pathogen-stroke links is crucial for targeted interventions.
Purpose of the Study:
- To systematically review and synthesize evidence on the association between infectious microorganisms and stroke.
- To identify specific pathogens implicated in stroke etiology.
- To inform preventive strategies for stroke treatment.
Main Methods:
- Comprehensive literature search of major scientific databases (Web of Science, PubMed, Scopus) up to July 2018.
- Inclusion of 16 relevant studies after rigorous quality assessment.
- Independent data extraction by two reviewers to ensure accuracy.
Main Results:
- Viruses including Hepatitis C virus (HCV), Hepatitis B virus (HBV), Human Immunodeficiency Virus (HIV), Herpes Simplex Virus (HSV), Varicella-Zoster Virus (VZV), and West Nile virus (WNV) are associated with ischemic stroke.
- Bacterial (Streptococcus mutans), parasitic (Toxocara spp., Toxoplasma gondii), and fungal (Rhizopus sp.) infections also show reported links to stroke.
- These findings highlight a diverse range of microorganisms potentially contributing to stroke development.
Conclusions:
- The identified microorganisms play a significant role in stroke pathogenesis.
- Preventive measures targeting these infections are essential for stroke management.
- Further research into pathogen-specific stroke mechanisms can optimize treatment and prevention.
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