Evidence map›Paper›PMID 15679182›Full record

ArticleJournal of autism and developmental disorders2004

Relative carnitine deficiency in autism.

Pauline A Filipek, Jenifer Juranek, Minh T Nguyen, Christa Cummings, J Jay Gargus

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of autism and developmental disorders, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 75 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
75citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 11% 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

75 citing papers in PubMed, 1 synthesis or guideline pooled it, 196 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Ubiquinol improves symptoms in children with autism.Oxidative medicine and cellular longevity · 2014
    Trial
  4. A prospective double-blind, randomized clinical trial of levocarnitine to treat autism spectrum disorders.Medical science monitor : international medical journal of experimental and clinical research · 2011
    Trial
  5. Review
  6. Article
  7. Review
  8. The Neuroimmunology of Autism.Molecular neurobiology · 2025
    Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article

15 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

5 authors at 1 institution in 1 country.

Pauline A FilipekDepartment of Pediatrics, College of Medicine, University of California, Irvine, CA, USA. filipek@uci.edu
Jenifer Juranek
Minh T Nguyen
Christa Cummings
J Jay Gargus
University of California, Irvine · US

Funding

VALIDITY OF SUBTYPES OF ADHDP50HD027802 · NICHD · UNIVERSITY OF COLORADO AT BOULDER · PI ERIK G WILLCUTT · 1990 to 2026
$44.9M
SCHOOL-AGE CONSEQUENCES OF <750 GRAM BIRTHWEIGHTR01HD026554 · NICHD · CASE WESTERN RESERVE UNIVERSITY · PI TAYLOR, H. GERRY · 1990 to 2002
$1.6M
AUTISM--A MODEL OF ANOMALOUS NEURAL SYSTEMS DEVELOPMENTR01NS035896 · NINDS · UNIVERSITY OF CALIFORNIA IRVINE · PI FILIPEK, PAULINE A. · 1997 to 2001
$596k
UCI MRRC CENTER FOR MRDD DISORDERS OF PLASTICITYP30HD028202 · NICHD · UNIVERSITY OF CALIFORNIA IRVINE · PI LOTT, IRA T · 1995 to 1999
–
NICHD NIH HHS HD26554NICHD NIH HHS HD27802NICHD NIH HHS HD28202NICHD NIH HHS HD35458NINDS NIH HHS NS35896
6 · The paper itself

Abstract

A random retrospective chart review was conducted to document serum carnitine levels on 100 children with autism. Concurrently drawn serum pyruvate, lactate, ammonia, and alanine levels were also available in many of these children. Values of free and total carnitine (p < 0.001), and pyruvate (p = 0.006) were significantly reduced while ammonia and alanine levels were considerably elevated (p < 0.001) in our autistic subjects. The relative carnitine deficiency in these patients, accompanied by slight elevations in lactate and significant elevations in alanine and ammonia levels, is suggestive of mild mitochondrial dysfunction. It is hypothesized that a mitochondrial defect may be the origin of the carnitine deficiency in these autistic children.

Indexed as

AdolescentAlanineAutistic DisorderCarnitineChildChild, PreschoolDiagnostic and Statistical Manual of Mental DisordersFemaleHumansHyperammonemiaLactic AcidMalePyruvic AcidRetrospective StudiesAlanineCarnitineLactic AcidPyruvic Acid

Identifiers

PMID15679182
OpenAlexW2156494045

What OpenQuestion holds

Textmetadata
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.