Evidence map›Paper›PMID 24139043›Full record

ArticleNeuron2013

Deficiency of asparagine synthetase causes congenital microcephaly and a progressive form of encephalopathy.

Elizabeth K Ruzzo, José-Mario Capo-Chichi, Bruria Ben-Zeev, David Chitayat, Hanqian Mao, Andrea L Pappas, Yuki Hitomi, Yi-Fan Lu, Xiaodi Yao, Fadi F Hamdan and 34 more

Open access · bronzeAbstract read
In one paragraph

Article in Neuron, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 91 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
91citing papers in PubMed, 1 pooled it
4.8field-weighted citation impact, top 5% 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

91 citing papers in PubMed, 1 synthesis or guideline pooled it, 165 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. A missense variant in Exon 9 of theFrontiers in genetics · 2026
    Article
  6. Article
  7. Biomedicines · 2025
    Article
  8. Review
  9. Aspartate in the Brain: A Review.Neurochemical research · 2025
    Review
  10. Case Report: a novel homozygousFrontiers in neuroscience · 2025
    Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Maternal exposure to polystyrene nanoplastics alters fetal brain metabolism in mice.Metabolomics : Official journal of the Metabolomic Society · 2023
    Article
  16. Review
  17. Amino acid metabolism in health and disease.Signal transduction and targeted therapy · 2023
    Review
  18. Article
  19. Article
  20. Article

31 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

44 authors at 12 institutions in 5 countries.

Elizabeth K RuzzoCenter for Human Genome Variation, Duke University School of Medicine, Durham, NC 27708, USA.
José-Mario Capo-Chichi
Bruria Ben-Zeev
David Chitayat
Hanqian Mao
Andrea L Pappas
Yuki Hitomi
Yi-Fan Lu
Xiaodi Yao
Fadi F Hamdan
Kimberly Pelak
Haike Reznik-Wolf
Ifat Bar-Joseph
Danit Oz-Levi
Dorit Lev
Tally Lerman-Sagie
Esther Leshinsky-Silver
Yair Anikster
Edna Ben-Asher
Tsviya Olender
Laurence Colleaux
Jean-Claude Décarie
Susan Blaser
Brenda Banwell
Rasesh B Joshi
Xiao-Ping He
Lysanne Patry
Rachel J Silver
Sylvia Dobrzeniecka
Mohammad S Islam
Abul Hasnat
Mark E Samuels
Dipendra K Aryal
Ramona M Rodriguiz
Yong-Hui Jiang
William C Wetsel
James O McNamara
Guy A Rouleau
Debra L Silver
Doron Lancet
Elon Pras
Grant A Mitchell
Jacques L Michaud
David B Goldstein
Duke University · USCentre Hospitalier Universitaire Sainte-Justine · CACenter for Human Genetics · USSheba Medical Center · ILWeizmann Institute of Science · ILUniversity of Toronto · CACentre Hospitalier de l’Université de Montréal · CATel Aviv University · ILUniversity of Dhaka · BDWolfson Medical Center · ILChildren's Hospital of Philadelphia · USHôpital Necker-Enfants Malades · FR

Funding

Viral Sequencing CoreU19AI067854 · NIAID · DUKE UNIVERSITY · PI CRUMP, JOHN ANDREW · 2006 to 2011
$290.5M
ORGANIZATION AND FUNCTIONS OF CELLULAR STRUCTUREST32GM007184 · NIGMS · DUKE UNIVERSITY · PI JINKS-ROBERTSON, SUE · 1985 to 2019
$18.2M
Whole-genome sequencing for rare highly penetrant gene variants in schizophreniaRC2MH089915 · NIMH · DUKE UNIVERSITY · PI GOLDSTEIN, DAVID B. · 2009 to 2011
$4.6M
Full Human Genome Sequencing in ALSRC2NS070342 · NINDS · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI BROWN, ROBERT H. · 2009 to 2010
$3.6M
Analysis of Shank3 Complete and Temporal and Spatial Specific Knockout MiceR01MH098114 · NIMH · DUKE UNIVERSITY · PI JIANG, YONG-HUI · 2012 to 2016
$2.2M
Whole-genome sequencing in multiplex epilepsy familiesRC2NS070344 · NINDS · DUKE UNIVERSITY · PI GOLDSTEIN, DAVID B., OTTMAN, RUTH · 2009 to 2010
$2.0M
CIHR MOP 106499NIAID NIH HHS U19 AI067854NIGMS NIH HHS T32 GM007184NIMH NIH HHS R01 MH098114NIMH NIH HHS RC2 MH089915NIMH NIH HHS RC2MH089915NINDS NIH HHS ARRA 1RC2NS070342-01NINDS NIH HHS RC2 NS070342NINDS NIH HHS RC2 NS070344NINDS NIH HHS RC2NS070344PHS HHS UO1AIO67854
6 · The paper itself

Abstract

We analyzed four families that presented with a similar condition characterized by congenital microcephaly, intellectual disability, progressive cerebral atrophy, and intractable seizures. We show that recessive mutations in the ASNS gene are responsible for this syndrome. Two of the identified missense mutations dramatically reduce ASNS protein abundance, suggesting that the mutations cause loss of function. Hypomorphic Asns mutant mice have structural brain abnormalities, including enlarged ventricles and reduced cortical thickness, and show deficits in learning and memory mimicking aspects of the patient phenotype. ASNS encodes asparagine synthetase, which catalyzes the synthesis of asparagine from glutamine and aspartate. The neurological impairment resulting from ASNS deficiency may be explained by asparagine depletion in the brain or by accumulation of aspartate/glutamate leading to enhanced excitability and neuronal damage. Our study thus indicates that asparagine synthesis is essential for the development and function of the brain but not for that of other organs.

Indexed as

AdolescentAnimalsAspartate-Ammonia LigaseAtrophyBrainChildFemaleGenetic Predisposition to DiseaseHumansInfantInfant, NewbornIntellectual DisabilityMaleMiceMice, TransgenicMicrocephalyAspartate-Ammonia Ligase

Identifiers

PMID24139043
PMCPMC3820368
OpenAlexW2008218423

What OpenQuestion holds

Textmetadata
LicenceTDM
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 OpenQuestion graph.