Evidence map›Paper›PMID 33515455›Full record

ArticleThe international journal of neuropsychopharmacology2021

Dysregulation of Protein Kinase C in Adult Depression and Suicide: Evidence From Postmortem Brain Studies.

Ghanshyam N Pandey, Anuradha Sharma, Hooriyah S Rizavi, Xinguo Ren

Open access · goldAbstract read
In one paragraph

Article in The international journal of neuropsychopharmacology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 25% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.

  1. Pooled it
  2. Unveiling the 'Eating Poison' ofJournal of pharmaceutical analysis · 2026
    Article
  3. Article
  4. Review
  5. Genome-wide methylome-based molecular pathologies associated with depression and suicide.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025
    Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. 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 1 institution in 1 country.

Ghanshyam N PandeyUniversity of Illinois at Chicago, Department of Psychiatry, Chicago, IL, USA.
Anuradha SharmaUniversity of Illinois at Chicago, Department of Psychiatry, Chicago, IL, USA.
Hooriyah S RizaviUniversity of Illinois at Chicago, Department of Psychiatry, Chicago, IL, USA.
Xinguo RenUniversity of Illinois at Chicago, Department of Psychiatry, Chicago, IL, USA.
University of Illinois Chicago · US

Funding

Expression and Methylation of HPA Axis Genes in Adult Suicide BrainR01MH106565 · NIMH · UNIVERSITY OF ILLINOIS AT CHICAGO · PI PANDEY, GHANSHYAM N · 2016 to 2020
$2.7M
PI and Wnt Signaling in Postmortem Brain of Biopolar and Schizophrenia SubjectsR01MH077254 · NIMH · UNIVERSITY OF ILLINOIS AT CHICAGO · PI PANDEY, GHANSHYAM N · 2007 to 2011
$1.7M
NIMH NIH HHS R01 MH077254NIMH NIH HHS R01 MH106565
6 · The paper itself

Abstract

backgroundSeveral lines of evidence suggest the abnormalities of protein kinase C (PKC) signaling system in mood disorders and suicide based primarily on the studies of PKC and its isozymes in the platelets and postmortem brain of depressed and suicidal subjects. In this study, we examined the role of PKC isozymes in depression and suicide.

methodsWe determined the protein and mRNA expression of various PKC isozymes in the prefrontal cortical region (Brodmann area 9) in 24 normal control subjects, 24 depressed suicide (DS) subjects, and 12 depressed nonsuicide (DNS) subjects. The levels of mRNA in the prefrontal cortex were determined by quantitative real-time reverse transcription PCR, and the protein expression was determined by western blotting.

resultsWe observed a significant decrease in mRNA expression of PKCα, PKCβI, PKCδ, and PKCε and decreased protein expression in either the membrane or the cytosol fraction of PKC isozymes PKCα, PKCβI, PKCβII, and PKCδ in DS and DNS subjects compared with normal control subjects.

conclusionsThe current study provides detailed evidence of specific dysregulation of certain PKC isozymes in the postmortem brain of DS and DNS subjects and further supports earlier evidence for the role of PKC in the platelets and brain of the adult and teenage depressed and suicidal population. This comprehensive study may lead to further knowledge of the involvement of PKC in the pathophysiology of depression and suicide.

Indexed as

Suicide, CompletedAdultAutopsyFemaleHumansIsoenzymesMajor Depressive DisorderMaleMiddle AgedPrefrontal CortexProtein Kinase CRNA, MessengerYoung AdultIsoenzymesProtein Kinase CRNA, MessengerdepressionPKCPKC isozymespostmortem brainprefrontal cortexsuicide

Identifiers

PMID33515455
PMCPMC8130206
OpenAlexW3128979877

What OpenQuestion holds

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LicenceCC BY
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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.