Evidence map›Paper›PMID 24374935›Full record

ArticleEuropean archives of psychiatry and clinical neuroscience2014

Neuropathological changes in the substantia nigra in schizophrenia but not depression.

M R Williams, K Galvin, B O'Sullivan, C D MacDonald, E W K Ching, F Turkheimer, O D Howes, R K B Pearce, S R Hirsch, M Maier

Abstract read
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In one paragraph

Article in European archives of psychiatry and clinical neuroscience, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 2 pooled it
2.9field-weighted citation impact, top 10% 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, 2 syntheses or guidelines pooled it, 53 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Review
  6. Review
  7. Article
  8. Review
  9. Evidence for altered excitatory and inhibitory tone in the post-mortem substantia nigra in schizophrenia.The world journal of biological psychiatry : the official journal of the World Federation of Societies of Biological Psychiatry · 2020
    Article
  10. Dopamine and glutamate in schizophrenia: biology, symptoms and treatment.World psychiatry : official journal of the World Psychiatric Association (WPA) · 2020
    Article
  11. Article
  12. Axonal myelin decrease in the splenium in major depressive disorder.European archives of psychiatry and clinical neuroscience · 2019
    Article
  13. Review
  14. The Potential Role of Regulatory Genes (Frontiers in genetics · 2019
    Article
  15. Review
  16. Review
  17. Article
  18. Article
  19. The neuropathology of schizophrenia: new insights from postmortem studies.European archives of psychiatry and clinical neuroscience · 2014
    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

10 authors at 8 institutions in 2 countries.

M R WilliamsInstitute of Psychiatry, King's College London, De Crespigny Park, London, SE5 8AF, UK, matthew.r.williams@imperial.ac.uk.
K Galvin
B O'Sullivan
C D MacDonald
E W K Ching
F Turkheimer
O D Howes
R K B Pearce
S R Hirsch
M Maier
Charing Cross Hospital · GBKing's College London · GBAintree University Hospital · GBHammersmith Hospital · GBImperial College London · GBSt George's, University of London · GBUniversity of Hong Kong · HKWest London Mental Health NHS Trust · GB

Funding

Medical Research Council G0700995Medical Research Council G0701018Medical Research Council G1100578Medical Research Council G1100809Medical Research Council G1100809/1Medical Research Council MC_U120097115
6 · The paper itself

Abstract

Schizophrenia is a chronic, disabling neuropsychiatric disorder characterised by positive, negative and cognitive symptoms. The aetiology is not known, although genetic, imaging and pathological studies have implicated both neurodevelopmental and neurodegenerative processes. The substantia nigra is a basal ganglia nucleus responsible for the production of dopamine and projection of dopaminergic neurons to the striatum. The substantia nigra is implicated in schizophrenia as dopamine has been heavily implicated in the dopamine hypothesis of schizophrenia and the prevalent psychotic symptoms and the monoamine theory of depression, and is a target for the development of new therapies. Studies into the major dopamine delivery pathways in the brain will therefore provide a strong base in improving knowledge of these psychiatric disorders. This post-mortem study examines the cytoarchitecture of dopaminergic neurons of the substantia nigra in schizophrenia (n = 12) and depression (n = 13) compared to matched controls (n = 13). Measures of nucleolar volume, nuclear length and nuclear area were taken in patients with chronic schizophrenia and major depressive disorder against matched controls. Astrocyte density was decreased in schizophrenia compared to controls (p = 0.030), with no change in oligodendrocyte density observed. Significantly increased nuclear cross-sectional area (p = 0.017) and length (p = 0.021), and increased nucleolar volume (p = 0.037) in dopaminergic neurons were observed in schizophrenia patients compared with controls, suggesting nuclear pleomorphic changes. No changes were observed in depression cases compared to control group. These changes may reflect pathological alterations in gene expression, neuronal structure and function in schizophrenia.

Indexed as

AdultAgedDepressionFemaleGlial Fibrillary Acidic ProteinHumansMaleMiddle AgedNeuronsPostmortem ChangesSchizophreniaSubstantia NigraGlial Fibrillary Acidic Protein

Identifiers

PMID24374935
OpenAlexW2026001056

What OpenQuestion holds

Textmetadata
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.