Data from 13,363 transplant patients underline the importance of preventing, diagnosing and treating viral reactivation.
Another report links HHV-6B nucleic acid and antigen to mesial temporal lobe epilepsy
Viral DNA and antigen found at higher levels in MTLE than in control brains.
HHV-6 DNA often found in cerebrospinal fluid in samples tested for meningitis
Those with viral infections showed no difference in white or red blood cell counts or the protein and glucose levels.
HHV-6 found in postmortem study of myalgic encephalomyelitis/chronic fatigue syndrome
Because of small number of ME/CFS subjects, the study is provocative rather than conclusive.
Increased HHV-6B viral load and levels of autonomic autoantibodies in ME/CFS
Biomarkers distinguish cases from healthy controls, but don’t all correlate with disease severity.
HHV-6 encephalitis following CAR-T cell therapy
A growing number of case reports reveal reactivation similar to that seen after hematopoietic stem cell therapy. Could CAR-T cells be a source of lytic HHV-6?
The dUTPases of HHV-6A and EBV may encourage autoimmunity in ME/CFS
Viral dUTPases are strong inducers of activin A and enhance T follicular helper-cell differentiation.
Elevated HHV-6 and EBV dUTPase antibody levels found in older populations
It remains unclear if there are lower levels of these antibodies in younger age groups.
Reactivation of latent herpesviruses and HERVS after mild COVID-19
Findings are accentuated in people with myalgic encephalomyelitis/chronic fatigue syndrome.
Differences in the cytopathic effect of HHV-6A and HHV-6B infection of neurons and glia
In vitro studies confirm that the two viruses infect different cell types, and generate different cytopathic effects, cytokine and growth factor responses.
HHV-6A promotes inflammation in astrocytoma cells by dysregulating autophagy
Infection increases ROS, induces ER stress and activates STAT3, NF-κB and mTOR pathways.
EBV and HHV-6 plasma viremia is infrequent at Day 7 during acute COVID-19
Other studies have suggested that reactivation of these viruses could theoretically contribute to a hyperinflammatory state or autoimmune disorders in acute COVID-19, but this study does not provide evidence of that.
Possible link between depression and HHV-6 infection in childhood
Serologic studies of several herpesviruses find that only HHV-6 may be linked to depression.
New seroepidemiological evidence that HHV-6 contributes to MS disease progression
Longitudinal study of people with a single initial episode of demyelination provides stronger evidence for HHV-6 than EBV in the pathogenesis of MS, but the evidence is not robust.
The presence of HHV-6 DNA in nasal swabs correlates with neurological symptoms in patients with severe COVID-19
40% of the patients with HHV-6 DNA had CNS symptoms, compared to 14.3% of the HHV-6 negative patients.