Evidence map›Paper›PMID 23999527›Full record

ArticleMolecular psychiatry2014

Neuropsychiatric disease relevance of circulating anti-NMDA receptor autoantibodies depends on blood-brain barrier integrity.

C Hammer, B Stepniak, A Schneider, S Papiol, M Tantra, M Begemann, A-L Sirén, L A Pardo, S Sperling, S Mohd Jofrry and 14 more

Abstract read
PubMed Publisher
In one paragraph

Article in Molecular psychiatry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 177 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
177citing papers in PubMed, 5 pooled it
19.0field-weighted citation impact, top 1% 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

177 citing papers in PubMed, 5 syntheses or guidelines pooled it, 338 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Article
  7. Choroid Plexus Abnormalities in Autoimmune Encephalitis.CNS neuroscience & therapeutics · 2026
    Article
  8. Review
  9. Pro-Cognitive Effects of IgM Isotype Anti-NMDAR1 Autoantibodies in Mice.bioRxiv : the preprint server for biology · 2026
    Article
  10. Article
  11. Review
  12. Article
  13. Autoimmune neuropsychiatric disorders manifesting with psychosis.The Journal of clinical investigation · 2025
    Review
  14. Article
  15. Autoantibodies and Inflammation in Schizophrenia.Psychiatry and clinical neurosciences · 2025
    Review
  16. Review
  17. Article
  18. Article
  19. Towards precision medicine for systemic lupus erythematosus and neuropsychiatric manifestations.Expert review of precision medicine and drug development · 2025
    Article
  20. Article

117 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

24 authors at 7 institutions in 2 countries.

C HammerClinical Neuroscience, Max Planck Institute of Experimental Medicine, Göttingen, Germany.
B StepniakClinical Neuroscience, Max Planck Institute of Experimental Medicine, Göttingen, Germany.
A Schneider1] Department of Psychiatry & Psychotherapy, University Medicine Göttingen, Göttingen, Germany [2] DFG Research Center Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), Göttingen, Germany [3] German Center for Neurodegenerative Diseases (DZNE), Göttingen, Germany.
S Papiol1] Clinical Neuroscience, Max Planck Institute of Experimental Medicine, Göttingen, Germany [2] DFG Research Center Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), Göttingen, Germany.
M Tantra1] Clinical Neuroscience, Max Planck Institute of Experimental Medicine, Göttingen, Germany [2] DFG Research Center Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), Göttingen, Germany.
M BegemannClinical Neuroscience, Max Planck Institute of Experimental Medicine, Göttingen, Germany.
A-L SirénDepartment of Neurosurgery, University Clinic of Würzburg, Würzburg, Germany.
L A PardoDepartment of Molecular Biology of Neuronal Signals, Max Planck Institute of Experimental Medicine, Göttingen, Germany.
S SperlingClinical Neuroscience, Max Planck Institute of Experimental Medicine, Göttingen, Germany.
S Mohd JofrryClinical Neuroscience, Max Planck Institute of Experimental Medicine, Göttingen, Germany.
A GurvichClinical Neuroscience, Max Planck Institute of Experimental Medicine, Göttingen, Germany.
N JensenClinical Neuroscience, Max Planck Institute of Experimental Medicine, Göttingen, Germany.
K OstmeierClinical Neuroscience, Max Planck Institute of Experimental Medicine, Göttingen, Germany.
F LühderDepartment of Neuroimmunology, Institute for Multiple Sclerosis Research and Hertie Foundation, University Medicine Göttingen, Göttingen, Germany.
C ProbstInstitute for Experimental Immunology, affiliated to Euroimmun, Lübeck, Germany.
H MartensSynaptic Systems GmbH, Göttingen, Germany.
M GillisInstitute of Virology, Hannover Medical School, Hannover, Germany.
G SaherDepartment of Neurogenetics, Max Planck Institute of Experimental Medicine, Göttingen, Germany.
F AssognaDepartment of Clinical and Behavioral Neurology, IRCCS Santa Lucia Foundation, Rome, Italy.
G SpallettaDepartment of Clinical and Behavioral Neurology, IRCCS Santa Lucia Foundation, Rome, Italy.
W StöckerInstitute for Experimental Immunology, affiliated to Euroimmun, Lübeck, Germany.
T F SchulzInstitute of Virology, Hannover Medical School, Hannover, Germany.
K-A Nave1] DFG Research Center Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), Göttingen, Germany [2] Department of Neurogenetics, Max Planck Institute of Experimental Medicine, Göttingen, Germany.
H Ehrenreich1] Clinical Neuroscience, Max Planck Institute of Experimental Medicine, Göttingen, Germany [2] DFG Research Center Nanoscale Microscopy and Molecular Physiology of the Brain (CNMPB), Göttingen, Germany.
Max Planck Institute of Experimental Medicine · DEEuroimmun Medizinische Labordiagnostika (Germany) · DEFondazione Santa Lucia · ITMedizinische Hochschule Hannover · DEHertie Foundation · DENanoscale Microscopy and Molecular Physiology of the Brain Cluster of Excellence 171 — DFG Research Center 103 · DEUniversitätsklinikum Würzburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In 2007, a multifaceted syndrome, associated with anti-NMDA receptor autoantibodies (NMDAR-AB) of immunoglobulin-G isotype, has been described, which variably consists of psychosis, epilepsy, cognitive decline and extrapyramidal symptoms. Prevalence and significance of NMDAR-AB in complex neuropsychiatric disease versus health, however, have remained unclear. We tested sera of 2817 subjects (1325 healthy, 1081 schizophrenic, 263 Parkinson and 148 affective-disorder subjects) for presence of NMDAR-AB, conducted a genome-wide genetic association study, comparing AB carriers versus non-carriers, and assessed their influenza AB status. For mechanistic insight and documentation of AB functionality, in vivo experiments involving mice with deficient blood-brain barrier (ApoE(-/-)) and in vitro endocytosis assays in primary cortical neurons were performed. In 10.5% of subjects, NMDAR-AB (NR1 subunit) of any immunoglobulin isotype were detected, with no difference in seroprevalence, titer or in vitro functionality between patients and healthy controls. Administration of extracted human serum to mice influenced basal and MK-801-induced activity in the open field only in ApoE(-/-) mice injected with NMDAR-AB-positive serum but not in respective controls. Seropositive schizophrenic patients with a history of neurotrauma or birth complications, indicating an at least temporarily compromised blood-brain barrier, had more neurological abnormalities than seronegative patients with comparable history. A common genetic variant (rs524991, P=6.15E-08) as well as past influenza A (P=0.024) or B (P=0.006) infection were identified as predisposing factors for NMDAR-AB seropositivity. The >10% overall seroprevalence of NMDAR-AB of both healthy individuals and patients is unexpectedly high. Clinical significance, however, apparently depends on association with past or present perturbations of blood-brain barrier function.

Indexed as

AdultAgedAnimalsApolipoproteins EAutoantibodiesBlood-Brain BarrierCerebral CortexEndocytosisFemaleGenome-Wide Association StudyHumansInfluenza, HumanMaleMice, Inbred C57BLMice, KnockoutMiddle AgedApolipoproteins EAutoantibodiesReceptors, N-Methyl-D-Aspartate

Identifiers

PMID23999527
OpenAlexW2029974888

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.