Evidence map›Paper›PMID 35379539›Full record

ReviewMolecular genetics and metabolism2022

Phenylketonuria oxidative stress and energy dysregulation: Emerging pathophysiological elements provide interventional opportunity.

Steven F Dobrowolski, Yu Leng Phua, Jerry Vockley, Eric Goetzman, Harry C Blair

Open access · greenAbstract readReview
In one paragraph

Review in Molecular genetics and metabolism, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
3.9field-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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.

  1. Metabolomic profiling in phenylketonuria: a systematic review of human studies.Metabolomics : Official journal of the Metabolomic Society · 2026
    Pooled it
  2. Article
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  6. Review
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  9. Observational
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  13. Current state of the treatment landscape of phenylketonuria.Orphanet journal of rare diseases · 2025
    Review
  14. Article
  15. Article
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  17. Review
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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 3 institutions in 1 country.

Steven F DobrowolskiDepartment of Pathology, University of Pittsburgh, School of Medicine, Pittsburgh, PA 15224, United States of America. Electronic address: dobrowolskis@upmc.edu.
Yu Leng PhuaDivision of Medical Genetics, Children's Hospital of Pittsburgh, Pittsburgh, PA 15224, United States of America.
Jerry VockleyDivision of Medical Genetics, Children's Hospital of Pittsburgh, Pittsburgh, PA 15224, United States of America.
Eric GoetzmanDivision of Medical Genetics, Children's Hospital of Pittsburgh, Pittsburgh, PA 15224, United States of America.
Harry C BlairDepartment of Pathology, University of Pittsburgh, School of Medicine, Pittsburgh, PA 15224, United States of America; Veteran's Affairs Medical Center, Pittsburgh, PA, United States of America.
Children's Hospital of Pittsburgh · USUniversity of Pittsburgh · USVeterans Health Administration · US

Funding

Regulation of Peroxisomal Metabolism by Lysine AcylationR01DK090242 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI GOETZMAN, ERIC S · 2011 to 2024
$5.4M
Characterization of Branched Chain Amino Acid Metabolism and Its DeficiencyR01DK109907 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI VOCKLEY, GERARD · 2016 to 2024
$4.1M
Optimizing medium-chain lipids for the treatment of long-chain fatty acid oxidation disordersR01HD103602 · NICHD · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI GOETZMAN, ERIC S · 2021 to 2025
$1.7M
NICHD NIH HHS R01 HD103602NIDDK NIH HHS R01 DK090242NIDDK NIH HHS R01 DK109907
6 · The paper itself

Abstract

Phenylalanine hydroxylase (PAH) deficient phenylketonuria (PKU) is rightfully considered the paradigm treatable metabolic disease. Dietary substrate restriction (i.e. phenylalanine (Phe) restriction) was applied >60 years ago and remains the primary PKU management means. The traditional model of PKU neuropathophysiology dictates blood Phe over-representation directs asymmetric blood:brain barrier amino acid transport through the LAT1 transporter with subsequent increased cerebral Phe concentration and low concentrations of tyrosine (Tyr), tryptophan (Trp), leucine (Leu), valine (Val), and isoleucine (Ile). Low Tyr and Trp concentrations generate secondary serotonergic and dopaminergic neurotransmitter paucities, widely attributed as drivers of PKU neurologic phenotypes. White matter disease, a central PKU characteristic, is ascribed to Phe-mediated tissue toxicity. Impaired cerebral protein synthesis, by reduced concentrations of non-Phe large neutral amino acids, is another cited pathological mechanism. The PKU amino acid transport model suggests Phe management should be more efficacious than is realized, as even early identified, continuously treated patients that retain therapy compliance into adulthood, demonstrate neurologic disease elements. Reduced cerebral metabolism was an early-recognized element of PKU pathology. Legacy data (late 1960's to mid-1970's) determined the Phe catabolite phenylpyruvate inhibits mitochondrial pyruvate transport. Respirometry of Pah

Indexed as

Phenylalanine HydroxylasePhenylketonuriasAdultGlutathione DisulfideGlutathione ReductaseHumansOxidative StressPhenylalaninePyruvatesTyrosineGlutathione DisulfideGlutathione ReductasePhenylalaninePhenylalanine HydroxylasePyruvatesTyrosineEnergyOxidative stressPhenylketonuriaPhenylpyruvateRespiratory chain complex 1

Identifiers

PMID35379539
PMCPMC9832337
OpenAlexW4220792468

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.