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Detection by immunofluorescence of possible viral implications in "idiopathic" peripheral facial paralysis
Abstract:
The presence of viral antigens was detected by the indirect immunofluorescence technique in exfoliated cells occurring in the pharyngeal exudate of 18 out of 29 patients with peripheral facial paralysis. The most frequently encountered antigens were: Coxsackie A and B virus (33.3%), adenovirus (16.7%), and the association Coxsackie B virus + adenovirus (16.7%). The possibility that some of the so-called "idiopathic" peripheral facial paralyses may have a viral etiology is discussed.
Insights
Viral antigens were found in pharyngeal cells of patients with facial paralysis. Coxsackie and adenovirus were the most common, suggesting a viral cause for some idiopathic cases.
Area of Science:
- Virology
- Neurology
- Immunology
Background:
- Peripheral facial paralysis, often termed idiopathic, affects facial nerve function.
- Viral infections are suspected but rarely confirmed causes of this condition.
Purpose of the Study:
- To investigate the presence of viral antigens in patients diagnosed with peripheral facial paralysis.
- To identify specific viruses associated with facial paralysis.
Main Methods:
- Indirect immunofluorescence technique was used.
- Analysis of exfoliated cells from pharyngeal exudate samples.
- Detection of viral antigens.
Main Results:
- Viral antigens were detected in 18 out of 29 patients (62%).
- Coxsackie A and B viruses were identified in 33.3% of cases.
- Adenovirus was found in 16.7%, and a combination of Coxsackie B and adenovirus in another 16.7%.
Conclusions:
- Results support a viral etiology for a significant portion of peripheral facial paralysis cases.
- Identified viruses like Coxsackie and adenovirus may play a role in idiopathic facial paralysis.
- Further research is warranted to confirm the causal link and explore treatment implications.