Association of human herpesvirus-6B with mesial temporal lobe epilepsy
2007

Human Herpesvirus-6B and Mesial Temporal Lobe Epilepsy

Sample size: 24 publication 10 minutes Evidence: moderate

Author Information

Author(s): Julie Fotheringham, Donati Donatella, Akhyani Nahid, Fogdell-Hahn Anna, Vortmeyer Alexander, Heiss John D, Williams Elizabeth, Weinstein Steven, Bruce Derek A, Gaillard William D, Sato Susumu, Theodore William H, Jacobson Steven

Primary Institution: National Institute of Neurological Disorders and Stroke, National Institutes of Health

Hypothesis

Is there an association between human herpesvirus-6B (HHV-6B) infection and mesial temporal lobe epilepsy (MTLE)?

Conclusion

The study found that HHV-6B DNA was present in a significant number of patients with mesial temporal lobe epilepsy, suggesting a potential link between the virus and the condition.

Supporting Evidence

  • HHV-6B DNA was detected in 11 of 16 patients with MTLE.
  • Zero of 7 control patients without MTLE had detectable HHV-6B.
  • Primary astrocytes from HHV-6B positive patients expressed viral proteins.

Takeaway

The researchers looked at brain samples from people with a type of epilepsy and found a virus called HHV-6B in many of them, which might be causing their seizures.

Methodology

The study used PCR and immunofluorescence to detect HHV-6B in brain tissue from patients with MTLE and non-MTLE.

Limitations

The study is limited by the small sample size and the need for further research to confirm the findings.

Participant Demographics

Patients included 15 with mesial temporal lobe epilepsy and 9 with other types of epilepsy.

Statistical Information

P-Value

p<0.001

Statistical Significance

p<0.001

Digital Object Identifier (DOI)

10.1371/journal.pmed.0040180

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