Related Experiment Video
Updated: May 6, 2026

Brain Ventricular Microinjections of Lipopolysaccharide into Larval Zebrafish to Assess Neuroinflammation and Neurotoxicity
Published on: August 23, 2022
Abstract:
The consequences of inflammatory response are primarily responsible for morbimortality in bacterial meningitis. Early use of steroids in these cases can reduce mortality and hearing loss and improve functional outcome without causing significant side effects. The formal recommendation towards pneumoccocal meningitis is being extended to other forms of Bacterial Meningitis. The same thought can be applied to tuberculous meningitis. In neurocysticercosis and neuroschistosomiasis steroids are more useful than parasiticides in most cases. Despite the evidence favoring the use of steroids in herpes simplex encephalitis, it is not sufficient to definitely support such indication. Among the opportunistic infections that affect AIDS patients, neurotoxoplasmosis and progressive multifocal leukoencephalopaty are those most often considered for the use of steroids; steroids are safe to use, but no definite benefit could be demonstrated in both conditions.
Insights
Steroids can reduce mortality and hearing loss in bacterial meningitis and other inflammatory brain infections. While beneficial in many cases, their effectiveness varies, with no proven benefit in certain opportunistic infections like neurotoxoplasmosis.
Area of Science:
- Neurology
- Infectious Diseases
- Pharmacology
Background:
- Inflammatory responses significantly contribute to mortality and morbidity in bacterial meningitis.
- Early steroid administration in bacterial meningitis is associated with reduced mortality, hearing loss, and improved functional outcomes.
- Steroid recommendations for pneumococcal meningitis are expanding to other bacterial meningitis forms, including tuberculous meningitis.
Purpose of the Study:
- To review the evidence for steroid use in various central nervous system infections.
- To evaluate the efficacy and safety of steroids in bacterial meningitis, neurocysticercosis, neuroschistosomiasis, herpes simplex encephalitis, and opportunistic infections in AIDS patients.
Main Methods:
- Literature review and analysis of existing studies on steroid therapy in CNS infections.
- Assessment of clinical outcomes, mortality rates, and side effects associated with steroid use.
Main Results:
- Steroids are beneficial in bacterial meningitis, tuberculous meningitis, neurocysticercosis, and neuroschistosomiasis.
- Evidence supporting steroid use in herpes simplex encephalitis is inconclusive.
- Steroids are safe but show no definite benefit in neurotoxoplasmosis and progressive multifocal leukoencephalopathy in AIDS patients.
Conclusions:
- Early steroid intervention is crucial for improving outcomes in bacterial meningitis.
- Steroids offer significant therapeutic value in several parasitic and bacterial CNS infections.
- Further research is needed to clarify the role of steroids in certain viral and opportunistic infections.
More Related Videos
09:19Improved 3D Hydrogel Cultures of Primary Glial Cells for In Vitro Modelling of Neuroinflammation
Published on: December 8, 2017
09:23Adult Mouse DRG Explant and Dissociated Cell Models to Investigate Neuroplasticity and Responses to Environmental Insults Including Viral Infection
Published on: March 9, 2018
Related Concept Videos
Encephalitis ll: Pathophysiology
Bacterial Meningitis II: Pathophysiology
Drugs Affecting Neurotransmitter Synthesis
Bacterial Meningitis I: Introduction
Inhibitors of Viral Protein Synthesis
Brain Abscess l: Introduction