Evidence map›Paper›PMID 42418127›Full record

ReviewJournal of neurovirology2026

HSV-1 and VZV co-reactivation: implications for worsening neurological and neurodegenerative diseases.

Christy S Niemeyer, Maria A Nagel, Diego Restrepo, Andrew N Bubak

Abstract readReview
In one paragraph

Review in Journal of neurovirology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Christy S NiemeyerDepartment of Neurology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
Maria A NagelDepartment of Neurology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
Diego RestrepoDepartment of Physiology and Biophysics, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, USA.
Andrew N BubakDepartment of Neurology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA. Andrew.Bubak@cuanschutz.edu.ORCID https://orcid.org/0000-0002-1675-2309

Funding

Colorado Clinical and Translational Sciences Institute (CCTSI)UM1TR004399 · NCATS · UNIVERSITY OF COLORADO DENVER · PI JANINE A HIGGINS, RONALD J. SOKOL · 2023 to 2026
$30.7M
Virus and olfactory system interactions accelerate Alzheimer's disease pathologyR01AG079193 · NIA · UNIVERSITY OF COLORADO DENVER · PI Maria Acena Nagel, Diego Restrepo · 2023 to 2026
$4.4M
CTSA K12 Program at University of Colorado DenverK12TR004412 · NCATS · UNIVERSITY OF COLORADO DENVER · PI ELLEN L BURNHAM · 2024 to 2026
$3.2M
Pathogenic exosomes during herpes zoster mediate increased vascular dementia riskR01AG085406 · NIA · UNIVERSITY OF COLORADO DENVER · PI Andrew N Bubak · 2024 to 2026
$3.2M
Remote cellular reprogramming by non-infectious, pathogenic varicella zoster virus exosomesR21AI176110 · NIAID · UNIVERSITY OF COLORADO DENVER · PI BUBAK, ANDREW N · 2024 to 2025
$429k
Non-Infectious VZV EVs as a novel modulator of HSV-1 NeurovirulenceR21AI200012 · NIAID · UNIVERSITY OF COLORADO DENVER · PI Andrew N Bubak, Christy Sue Niemeyer · 2026 to 2026
$429k
NCATS NIH HHS K12 TR004412NCATS NIH HHS K12 TR004412 and UM1 TR004399NCATS NIH HHS UM1 TR004399NIAID NIH HHS R21 AI176110NIAID NIH HHS R21 AI200012NIA NIH HHS R01 AG079193NIA NIH HHS R01 AG085406NIH HHS 1R01AG079193NIH HHS 1R01AG085406NIH HHS 1R21AI200012
6 · The paper itself

Abstract

Herpes simplex virus type 1 (HSV-1) and varicella zoster virus (VZV) are neurotropic human alphaherpesviruses that establish lifelong latency in peripheral ganglia. While traditionally studied in isolation, increasing evidence indicates that co-reactivation of these viruses may be clinically significant, especially in the context of aging and immunosuppression, and underdiagnosed. Recent studies show that both viruses can reside in the same trigeminal ganglion (TG) and interact synergistically to potentiate and exacerbate neurological and neurodegenerative disease. This review summarizes emerging insights into the clinical, immunological, and neuropathological implications of HSV-1 and VZV co-reactivation, with a particular emphasis on VZV-derived extracellular vesicles (EVs) as mediators of immune suppression and enhancers of secondary HSV-1 infection.

Indexed as

CoinfectionHerpes SimplexHerpesvirus 1, HumanHerpesvirus 3, HumanNeurodegenerative DiseasesVaricella Zoster Virus InfectionVirus ActivationAnimalsExtracellular VesiclesHumansTrigeminal GanglionVirus LatencyCo-InfectionDementiaExosomesExtracellular VesiclesHerpes Simplex VirusVaricella Zoster Virus

Identifiers

PMID42418127
PMCPMC13346214

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.