Evidence map›Paper›PMID 21632649›Full record

ArticleThe American journal of psychiatry2011

Progressive gray matter loss and changes in cognitive functioning associated with exposure to herpes simplex virus 1 in schizophrenia: a longitudinal study.

Konasale M Prasad, Shaun M Eack, Dhruman Goradia, Krishna M Pancholi, Matcheri S Keshavan, Robert H Yolken, Vishwajit L Nimgaonkar

Abstract read
In one paragraph

Article in The American journal of psychiatry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
2.1field-weighted citation impact, top 13% of its field
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

45 citing papers in PubMed, 74 citations in OpenAlex.

  1. Trial
  2. Review
  3. Herpes Simplex Virus Neurovirulence Across the Human Lifespan.The Journal of infectious diseases · 2025
    Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
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  14. Article
  15. Therapeutic Implications of the Microbial Hypothesis of Mental Illness.Current topics in behavioral neurosciences · 2023
    Review
  16. Article
  17. Article
  18. Review
  19. Article
  20. Review
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

7 authors at 4 institutions in 1 country.

Konasale M PrasadPresented at the 65th annual meeting of the Society of Biological Psychiatry, May 20-22, 2010, New Orleans.
Shaun M Eack
Dhruman Goradia
Krishna M Pancholi
Matcheri S Keshavan
Robert H Yolken
Vishwajit L Nimgaonkar
University of Pittsburgh · USJohns Hopkins Medicine · USHarvard University · USWayne State University · US

Funding

University of Pittsburgh Clinical and Translational Science InstituteUL1TR000005 · NCATS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI REIS, STEVEN E · 2012 to 2015
$50.8M
THE ROLE OF PREFRONTAL CORTEX IN THE COGNITIVE DYSFUNCTIONS OF SCHIZOPHRENIAP50MH045156 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI GRACE, ANTHONY A · 1990 to 2007
$17.9M
University of Pittsburgh Clinical and Translational Science InstitutionKL2TR000146 · NCATS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI REIS, STEVEN E · 2012 to 2015
$8.7M
A Neurobehavioral Family Study of SchizophreniaR01MH063480 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI NIMGAONKAR, VISHWAJIT LAXMIKANT · 2001 to 2018
$6.1M
RGS4 Polymorphisms and Neurobiology of SchizophreniaK23MH072995 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI PRASAD, KONASALE M · 2005 to 2009
$877k
NCATS NIH HHS KL2 TR000146NCATS NIH HHS UL1 TR000005NIMH NIH HHS K23 MH072995NIMH NIH HHS MH-45156NIMH NIH HHS MH-63480NIMH NIH HHS MH-72995NIMH NIH HHS P50 MH045156NIMH NIH HHS R01 MH063480
6 · The paper itself

Abstract

objectiveLongitudinal changes in gray matter volume and cognitive performance were evaluated among individuals exposed to neurotropic herpes simplex virus subtype 1 (HSV1). There is a replicable association of HSV1 exposure with smaller prefrontal volumes and cognitive impairments in schizophrenia.

methodThe authors concurrently examined the whole-brain longitudinal trajectory over 1 year of gray matter volumes and executive functioning measured with the Wisconsin Card Sorting Test among 26 first-episode antipsychotic-naive subjects with schizophrenia and 38 healthy subjects. Age, gender, socioeconomic status, and exposure to cytomegalovirus (another virus of the herpes family that was previously associated with cognitive impairments) were the covariates.

resultsSignificant gray matter loss in the posterior cingulate gyrus was noted among the HSV1-seropositive schizophrenia subjects over 1 year but not among other groups. Prefrontal gray matter volumes did not show longitudinal changes. Binomial mixed-effects models indicated that improvement over 1 year in Wisconsin Card Sorting Test categories completed and perseverative errors occurred in significantly fewer HSV1-seropositive schizophrenia subjects than in the HSV1-seronegative schizophrenia subjects or the healthy subjects regardless of serological status. Three-way interactions of diagnosis, HSV1 status, and time were significant for both categories completed and perseverative errors. An increase in perseverative errors over 1 year, but not the change in the number of categories completed, correlated with longitudinal volume loss of the posterior cingulate gyrus.

conclusionsThese observations suggest that HSV1 exposure may be associated with longitudinal gray matter loss in the posterior cingulate gyrus and decline in executive functioning among subjects with schizophrenia.

Indexed as

Herpesvirus 1, HumanImage Processing, Computer-AssistedImaging, Three-DimensionalMagnetic Resonance ImagingSchizophrenic PsychologyAdolescentAdultBrainCognition DisordersCohort StudiesDisease ProgressionDominance, CerebralEncephalitis, Herpes SimplexFemaleGyrus CinguliHumans

Identifiers

PMID21632649
PMCPMC4209378
OpenAlexW2133447500

What OpenQuestion holds

Textmetadata
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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.