Evidence map›Paper›PMID 25818630›Full record

ArticleBiological psychiatry2015

Loss of Microtubule-Associated Protein 2 Immunoreactivity Linked to Dendritic Spine Loss in Schizophrenia.

Micah A Shelton, Jason T Newman, Hong Gu, Allan R Sampson, Kenneth N Fish, Matthew L MacDonald, Caitlin E Moyer, James V DiBitetto, Karl-Anton Dorph-Petersen, Peter Penzes and 2 more

Abstract read
In one paragraph

Article in Biological psychiatry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed, 1 pooled it
5.5field-weighted citation impact, top 3% 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

57 citing papers in PubMed, 1 synthesis or guideline pooled it, 108 citations in OpenAlex.

  1. Pooled it
  2. Review
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  6. Association ofFrontiers in psychiatry · 2026
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  17. Dual Role of the P2X7 Receptor in Dendritic Outgrowth during Physiological and Pathological Brain Development.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  18. Unraveling the mysteries of dendritic spine dynamics: Five key principles shaping memory and cognition.Proceedings of the Japan Academy. Series B, Physical and biological sciences · 2023
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 2 institutions in 2 countries.

Micah A SheltonTranslational Neuroscience Program, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
Jason T NewmanTranslational Neuroscience Program, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
Hong GuDepartment of Statistics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
Allan R SampsonDepartment of Statistics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
Kenneth N FishTranslational Neuroscience Program, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
Matthew L MacDonaldTranslational Neuroscience Program, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
Caitlin E MoyerTranslational Neuroscience Program, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
James V DiBitettoTranslational Neuroscience Program, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
Karl-Anton Dorph-PetersenTranslational Neuroscience Program, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; Centre for Stochastic Geometry and Advanced Bioimaging, Aarhus University, Aarhus, Denmark.
Peter PenzesDepartment of Physiology, Northwestern University Feinberg School of Medicine, Chicago, Illinois; Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
David A LewisTranslational Neuroscience Program, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
Robert A SweetTranslational Neuroscience Program, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; Department of Neurology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania; Mental Illness Research, Education, and Clinical Center, VA Pittsburgh Healthcare System, Pittsburgh, Pennsylvania. Electronic address: sweetra@upmc.edu.
University of Pittsburgh · USNorthwestern University · US

Funding

VECTOR CORE FACILITYP30CA047904 · NCI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Jessie Nedrow · 1988 to 2026
$158.0M
Development of Neuronal Circuits In The Auditory SystemsR01DC004199 · NIDCD · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI KANDLER, KARL · 1999 to 2020
$8.5M
Small GTPase signaling in spinesR01MH071316 · NIMH · NORTHWESTERN UNIVERSITY AT CHICAGO · PI BARBOLINA, MARIA V., PENZES, PETER · 2005 to 2025
$7.1M
Plasticity of Auditory Cortical Circuits in SchizophreniaR01MH071533 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SWEET, ROBERT A · 2004 to 2018
$6.9M
Training for Transformative Discovery in PsychiatryT32MH016804 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SWEET, ROBERT A · 1985 to 2025
$6.2M
Synaptic and dendritic dysfunction in psychiatric disordersR01MH097216 · NIMH · NORTHWESTERN UNIVERSITY AT CHICAGO · PI PENZES, PETER · 2012 to 2021
$6.1M
Training in Auditory and Vestibular NeuroscienceT32DC011499 · NIDCD · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Karl Kandler, BILL J YATES · 2011 to 2026
$3.0M
Rac-GEF signaling in dendritic spinesRF1MH071316 · NIMH · NORTHWESTERN UNIVERSITY · PI Maria V. Barbolina, Peter Penzes · 2026 to 2026
$1.3M
Chandelier cell inputs to pyramidal neurons in schizophrenia and developmentR01MH096985 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI FISH, KENNETH N · 2012 to 2015
$1.2M
Small GTPase signaling in dendrites and spinesR56MH071316 · NIMH · NORTHWESTERN UNIVERSITY AT CHICAGO · PI PENZES, PETER · 2020 to 2020
$782k
NCI NIH HHS P30 CA047904NCI NIH HHS P30CA047904NIDCD NIH HHS DC011499-03NIDCD NIH HHS R01 DC004199NIDCD NIH HHS T32 DC011499NIMH NIH HHS MH071316NIMH NIH HHS MH071533NIMH NIH HHS MH096985NIMH NIH HHS MH097216NIMH NIH HHS MH16804NIMH NIH HHS R01 MH071316NIMH NIH HHS R01 MH071533NIMH NIH HHS R01 MH096985NIMH NIH HHS R01 MH097216NIMH NIH HHS R56 MH071316NIMH NIH HHS RF1 MH071316NIMH NIH HHS T32 MH016804
6 · The paper itself

Abstract

backgroundMicrotubule-associated protein 2 (MAP2) is a neuronal protein that plays a role in maintaining dendritic structure through its interaction with microtubules. In schizophrenia (Sz), numerous studies have revealed that the typically robust immunoreactivity (IR) of MAP2 is significantly reduced across several cortical regions. The relationship between MAP2-IR reduction and lower dendritic spine density, which is frequently reported in Sz, has not been explored in previous studies, and MAP2-IR loss has not been investigated in the primary auditory cortex (Brodmann area 41), a site of conserved pathology in Sz.

methodsUsing quantitative spinning disk confocal microscopy in two cohorts of subjects with Sz and matched control subjects (Sz subjects, n = 20; control subjects, n = 20), we measured MAP2-IR and dendritic spine density and spine number in deep layer 3 of BA41.

resultsSubjects with Sz exhibited a significant reduction in MAP2-IR. The reductions in MAP2-IR were not associated with neuron loss, loss of MAP2 protein, clinical confounders, or technical factors. Dendritic spine density and number also were reduced in Sz and correlated with MAP2-IR. In 12 (60%) subjects with Sz, MAP2-IR values were lower than the lowest values in control subjects; only in this group were spine density and number significantly reduced.

conclusionsThese findings demonstrate that MAP2-IR loss is closely linked to dendritic spine pathology in Sz. Because MAP2 shares substantial sequence, regulatory, and functional homology with MAP tau, the wealth of knowledge regarding tau biology and the rapidly expanding field of tau therapeutics provide resources for identifying how MAP2 is altered in Sz and possible leads to novel therapeutics.

Indexed as

AdultAgedAuditory CortexCohort StudiesDendritic SpinesFemaleHumansImmunohistochemistryMaleMicroscopy, ConfocalMicrotubule-Associated ProteinsMiddle AgedSchizophreniaYoung AdultMicrotubule-Associated ProteinsAuditory cortexConfocal microscopyDendritic spinesMicrotubule-Associated Protein 2Postmortem human tissueSchizophrenia

Identifiers

PMID25818630
PMCPMC4520801
OpenAlexW2030004690

What OpenQuestion holds

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Read underepoch 390

Registered trials

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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.