Evidence map›Paper›PMID 26954593›Full record

ReviewHarvard review of psychiatry

History of the Concept of Disconnectivity in Schizophrenia.

Joseph T Coyle, Darrick T Balu, Matthew D Puhl, Glenn T Konopaske

Open access · greenAbstract readReview
In one paragraph

Review in Harvard review of psychiatry. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

19 citing papers in PubMed, 49 citations in OpenAlex.

  1. Novel drug treatments for schizophrenia.Nature reviews. Drug discovery · 2026
    Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Pharmaceutical biology · 2021
    Article
  8. Article
  9. Article
  10. Review
  11. Brain gray matter network organization in psychotic disorders.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2020
    Article
  12. Review
  13. Association betweenNeuropsychiatric disease and treatment · 2019
    Article
  14. Article
  15. Article
  16. Genetics of Aggression in Alzheimer's Disease (AD).Frontiers in aging neuroscience · 2017
    Article
  17. Article
  18. Article
  19. Article
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 at 2 institutions in 1 country.

Joseph T CoyleFrom Harvard Medical School and McLean Hospital, Belmont, MA.
Darrick T Balu
Matthew D Puhl
Glenn T Konopaske
Harvard University · USMcLean Hospital · US

Funding

NMDA RECEPTOR FUNCTION IN SCHIZOPHRENIAP50MH060450 · NIMH · MC LEAN HOSPITAL (BELMONT, MA) · PI COYLE, JOSEPH T. · 2000 to 2010
$15.4M
PSYCHOSIS AND BRAIN GLUTAMATER01MH051290 · NIMH · MC LEAN HOSPITAL (BELMONT, MA) · PI COYLE, JOSEPH T. · 1994 to 2017
$5.0M
NMDA receptor hypofunction contributes to the dendritic dysplasia in schizophreniR00MH099252 · NIMH · MCLEAN HOSPITAL · PI BALU, DARRICK T · 2015 to 2017
$726k
Drug Abuse, Schizophrenia, NMDA ReceptorR21DA035427 · NIDA · MCLEAN HOSPITAL · PI COYLE, JOSEPH T. · 2013 to 2014
$435k
NMDA receptor hypofunction contributes to the dendritic dysplasia in schizophreniK99MH099252 · NIMH · MCLEAN HOSPITAL · PI BALU, DARRICK T · 2013 to 2014
$230k
NIDA NIH HHS R21 DA035427NIMH NIH HHS K99 MH099252NIMH NIH HHS K99MH099252-01NIMH NIH HHS P50 MH060450NIMH NIH HHS P50MH0G0450NIMH NIH HHS R00 MH099252NIMH NIH HHS R01 MH051290NIMH NIH HHS R01MH05190
6 · The paper itself

Abstract

Nearly 60 years ago Seymour Kety proposed that research on genetics and brain pathology, but not on neurochemistry, would ultimately lead to an understanding of the pathophysiology of schizophrenia. This article will demonstrate the prescience of Kety's proposal; advances in our knowledge of brain structure and genetics have shaped our current understanding of the pathophysiology of schizophrenia. Brain-imaging techniques have shown that schizophrenia is associated with cortical atrophy and ventricular enlargement, which progresses for at least a decade after the onset of psychotic symptoms. Cortical atrophy correlates with negative symptoms and cognitive impairment, but not with psychotic symptoms, in schizophrenia. Studies with the Golgi-staining technique that illuminates the entire neuron indicate that cortical atrophy is due to reduced synaptic connectivity on the pyramidal neurons and not due to actual loss of neurons. Results of recent genetic studies indicate that several risk genes for schizophrenia are within two degrees of separation from the N-methy-D-aspartate receptor (NMDAR), a subtype of glutamate receptor that is critical to synapse formation and synaptic plasticity. Inactivation of one of these risk genes that encodes serine racemase, which synthesizes D-serine, an NMDAR co-agonist, reproduces the synaptic pathology of schizophrenia. Thus, widespread loss of cortical synaptic connectivity appears to be the primary pathology in schizophrenia that is driven by multiple risk genes that adversely affect synaptogenesis and synapse maintenance, as hypothesized by Kety.

Indexed as

AtrophyCerebral CortexCognition DisordersHippocampusHumansMagnetic Resonance ImagingMeta-Analysis as TopicNerve Tissue ProteinsNeuronal PlasticityNeuronsRacemases and EpimerasesReceptors, N-Methyl-D-AspartateSchizophreniaSerine RacemaseGRIN1 protein, humanNerve Tissue ProteinsRacemases and EpimerasesReceptors, N-Methyl-D-AspartateSerine Racemase

Identifiers

PMID26954593
PMCPMC4788103
OpenAlexW2335728362

What OpenQuestion holds

Textmetadata
LicenceTDM
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.