Evidence map›Paper›PMID 22850464›Full record

ArticleThe international journal of neuropsychopharmacology2013

Monoamine oxidase A and A/B knockout mice display autistic-like features.

Marco Bortolato, Sean C Godar, Loai Alzghoul, Junlin Zhang, Ryan D Darling, Kimberly L Simpson, Valentina Bini, Kevin Chen, Cara L Wellman, Rick C S Lin and 1 more

Abstract read
In one paragraph

Article in The international journal of neuropsychopharmacology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

64 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Combined Antagonism of 5-HTPharmaceuticals (Basel, Switzerland) · 2022
    Article
  14. Article
  15. Review
  16. Article
  17. Systemic enhancement of serotonin signaling reverses social deficits in multiple mouse models for ASD.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2021
    Article
  18. Article
  19. Review
  20. Review

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

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

11 authors.

Marco BortolatoDepartment of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA.
Sean C Godar
Loai Alzghoul
Junlin Zhang
Ryan D Darling
Kimberly L Simpson
Valentina Bini
Kevin Chen
Cara L Wellman
Rick C S Lin
Jean C Shih

Funding

TWO TYPES OF MONOAMINE OXIDASER01MH039085 · NIMH · UNIVERSITY OF SOUTHERN CALIFORNIA · PI SHIH, JEAN CHEN · 1985 to 2013
$2.0M
Interactions of MAO A with vulnerability factors for aggressionR21HD070611 · NICHD · UNIVERSITY OF SOUTHERN CALIFORNIA · PI BORTOLATO, MARCO · 2011 to 2012
$434k
NICHD NIH HHS R21 HD070611NICHD NIH HHS R21HD070611NIMH NIH HHS R01 MH039085NIMH NIH HHS R01MH39085
6 · The paper itself

Abstract

Converging lines of evidence show that a sizable subset of autism-spectrum disorders (ASDs) is characterized by increased blood levels of serotonin (5-hydroxytryptamine, 5-HT), yet the mechanistic link between these two phenomena remains unclear. The enzymatic degradation of brain 5-HT is mainly mediated by monoamine oxidase (MAO)A and, in the absence of this enzyme, by its cognate isoenzyme MAOB. MAOA and A/B knockout (KO) mice display high 5-HT levels, particularly during early developmental stages. Here we show that both mutant lines exhibit numerous behavioural hallmarks of ASDs, such as social and communication impairments, perseverative and stereotypical responses, behavioural inflexibility, as well as subtle tactile and motor deficits. Furthermore, both MAOA and A/B KO mice displayed neuropathological alterations reminiscent of typical ASD features, including reduced thickness of the corpus callosum, increased dendritic arborization of pyramidal neurons in the prefrontal cortex and disrupted microarchitecture of the cerebellum. The severity of repetitive responses and neuropathological aberrances was generally greater in MAOA/B KO animals. These findings suggest that the neurochemical imbalances induced by MAOA deficiency (either by itself or in conjunction with lack of MAOB) may result in an array of abnormalities similar to those observed in ASDs. Thus, MAOA and A/B KO mice may afford valuable models to help elucidate the neurobiological bases of these disorders and related neurodevelopmental problems.

Indexed as

Interpersonal RelationsAnimalsAutistic DisorderMaleMaze LearningMiceMice, 129 StrainMice, KnockoutMonoamine OxidaseMotor ActivityVocalization, AnimalMonoamine Oxidase

Identifiers

PMID22850464
PMCPMC3517692

What OpenQuestion holds

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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.