Evidence map›Paper›PMID 23175463›Full record

ArticleHepatology (Baltimore, Md.)2013

Placental stem cell correction of murine intermediate maple syrup urine disease.

Kristen J Skvorak, Kenneth Dorko, Fabio Marongiu, Veysel Tahan, Marc C Hansel, Roberto Gramignoli, K Michael Gibson, Stephen C Strom

Open access · bronzeAbstract read
In one paragraph

Article in Hepatology (Baltimore, Md.), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.8field-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

31 citing papers in PubMed, 67 citations in OpenAlex.

  1. Current Status of Cellular and Gene-Based Therapies for Congenital Metabolic Disorders: A Review.Medical science monitor : international medical journal of experimental and clinical research · 2026
    Review
  2. Article
  3. Article
  4. The biological functions and metabolic pathways of valine in swine.Journal of animal science and biotechnology · 2023
    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

8 authors at 3 institutions in 2 countries.

Kristen J SkvorakDepartment of Pathology, University of Pittsburgh, Pittsburgh, PA, USA.
Kenneth Dorko
Fabio Marongiu
Veysel Tahan
Marc C Hansel
Roberto Gramignoli
K Michael Gibson
Stephen C Strom
University of Pittsburgh · USKarolinska Institutet · SEMichigan Technological University · US

Funding

Novel Treatment & Screening Strategies in Gamma-Hydroxybutyric AciduriaR01HD058553 · NICHD · WASHINGTON STATE UNIVERSITY · PI GIBSON, K MICHAEL · 2009 to 2013
$1.5M
Mice Humanized with Hepatocytes and iPS Cells from Patients with Metabolic DiseasRC1DK086135 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI STROM, STEPHEN C · 2009 to 2010
$970k
NICHD NIH HHS HD58553NICHD NIH HHS R01 HD058553NIDDK NIH HHS N01-DK-7-0004/HHSN26700700004CNIDDK NIH HHS RC1 DK086135NIDDK NIH HHS RC1DK086135
6 · The paper itself

Abstract

unlabelledThere is improved survival and partial metabolic correction of a mouse intermediate maple syrup urine disease (iMSUD) model after allogenic hepatocyte transplantation, confirming that a small number of enzyme-proficient liver-engrafted cells can improve phenotype. However, clinical shortages of suitable livers for hepatocyte isolation indicate a need for alternative cell sources. Human amnion epithelial cells (hAECs) share stem cell characteristics without the latter's safety and ethical concerns and differentiate to hepatocyte-like cells. Eight direct hepatic hAEC transplantations were performed in iMSUD mice over the first 35 days beginning at birth; animals were provided a normal protein diet and sacrificed at 35 and 100 days. Treatment at the neonatal stage is clinically relevant for MSUD and may offer a donor cell engraftment advantage. Survival was significantly extended and body weight was normalized in iMSUD mice receiving hAEC transplantations compared with untreated iMSUD mice, which were severely cachectic and died ≤28 days after birth. Branched chain α-keto acid dehydrogenase enzyme activity was significantly increased in transplanted livers. The branched chain amino acids leucine, isoleucine, valine, and alloisoleucine were significantly improved in serum and brain, as were other large neutral amino acids.

conclusionPlacental-derived stem cell transplantation lengthened survival and corrected many amino acid imbalances in a mouse model of iMSUD. This highlights the potential for their use as a viable alternative clinical therapy for MSUD and other liver-based metabolic diseases.

Indexed as

3-Methyl-2-Oxobutanoate Dehydrogenase (Lipoamide)Amino Acids, Branched-ChainAmnionAnimalsAnimals, NewbornBody WeightBrainCell DifferentiationDisease Models, AnimalEpithelial CellsFemaleHepatocytesHumansMaple Syrup Urine DiseaseMiceMice, Mutant Strains3-Methyl-2-Oxobutanoate Dehydrogenase (Lipoamide)Amino Acids, Branched-Chain

Identifiers

PMID23175463
PMCPMC3593790
OpenAlexW2079308358

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.