Evidence map›Paper›PMID 32398672›Full record

ArticleTranslational psychiatry2020

Proteomic analysis reveals a biosignature of decreased synaptic protein in cerebrospinal fluid of major depressive disorder.

Mhd Rami Al Shweiki, Patrick Oeckl, Petra Steinacker, Peggy Barschke, Cornelia Dorner-Ciossek, Bastian Hengerer, Carlos Schönfeldt-Lecuona, Markus Otto

Open access · goldAbstract read
In one paragraph

Article in Translational psychiatry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
1.2field-weighted citation impact, top 24% 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

39 citing papers in PubMed, 53 citations in OpenAlex.

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  8. Synaptic density in the hippocampus of depressed patients: A quantitative electron microscopic study.Progress in neuro-psychopharmacology & biological psychiatry · 2026
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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

8 authors at 2 institutions in 1 country.

Mhd Rami Al ShweikiDepartment of Neurology, Ulm University, Ulm, Germany.
Patrick OecklDepartment of Neurology, Ulm University, Ulm, Germany.
Petra SteinackerDepartment of Neurology, Ulm University, Ulm, Germany.
Peggy BarschkeDepartment of Neurology, Ulm University, Ulm, Germany.
Cornelia Dorner-CiossekCNS Diseases Research, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach an der Riss, Germany.
Bastian HengererCNS Diseases Research, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach an der Riss, Germany.ORCID http://orcid.org/0000-0002-7811-9795
Carlos Schönfeldt-LecuonaDepartment of Psychiatry and Psychotherapy III, University of Ulm, Ulm, Germany.
Markus OttoDepartment of Neurology, Ulm University, Ulm, Germany. markus.otto@uni-ulm.de.ORCID http://orcid.org/0000-0003-4273-4267
Universität Ulm · DEBoehringer Ingelheim (Germany) · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Major depressive disorder (MDD) is a leading cause of morbidity with a lifetime prevalence of 10%. There is increasing evidence suggesting synaptic dysfunction and impaired integrity of certain brain circuits in MDD. Here we investigate the cerebrospinal fluid proteome of psychiatric patients focusing on MDD by deep proteomic profiling approach combined with a further validation step using targeted mass spectrometry. We demonstrate profound CSF proteomic changes during on-going depression episodes in MDD patients (n = 40) in comparison to controls (n = 27), schizophrenia spectrum disorder (n = 13), and bipolar disorder patients (n = 11). The discovery analysis with isobaric tags for relative and absolute quantitation (iTRAQ) reveals changes in proteins associated with synaptic transmission, myelination, and Wnt signaling in CSF of MDD. The multiple reaction monitoring (MRM) validation analysis confirms significantly decreased levels of eight proteins including the membrane synaptic proteins neurexin 3 (NRXN3), contactin-associated protein-like 4 (CNTNAP4), and glutamate ionotropic receptor AMPA type subunit 4 (GRIA4) in the CSF of MDD patients in comparison to the controls. Overall, the study demonstrates proteins that constitute an MDD biosignature for further validation studies and provides insight into the pathophysiology of MDD and other psychiatric disorders.

Indexed as

Bipolar DisorderMajor Depressive DisorderGene Expression ProfilingHumansProteomeProteomicsProteome

Identifiers

PMID32398672
PMCPMC7217933
OpenAlexW3025162369

What Socratic holds

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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 Socratic graph.