Evidence map›Paper›PMID 34671989›Full record

Observational studyJournal of inherited metabolic disease2022

Untargeted plasma metabolomics identifies broad metabolic perturbations in glycogen storage disease type I.

Tamara Mathis, Martin Poms, Harald Köfeler, Matthias Gautschi, Barbara Plecko, Matthias R Baumgartner, Michel Hochuli

Open access · hybridAbstract readObservational Study
In one paragraph

Observational study in Journal of inherited metabolic disease, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

14 citing papers in PubMed, 21 citations in OpenAlex.

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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

7 authors at 4 institutions in 2 countries.

Tamara MathisDivision of Endocrinology, Diabetes, and Clinical Nutrition, University Hospital Zurich, University of Zurich, Zurich, Switzerland.
Martin PomsDepartment of Clinical Chemistry and Biochemistry, University Children's Hospital Zurich, University of Zurich, Zurich, Switzerland.
Harald KöfelerCore Facility Mass Spectrometry, Medical University of Graz, Graz, Austria.
Matthias GautschiDivision of Pediatric Endocrinology, Diabetology and Metabolism, Department of Pediatrics and Institute of Clinical Chemistry, University Hospital Bern, Inselspital, Bern, Switzerland.
Barbara PleckoDepartment of Pediatrics and Adolescent Medicine, Medical University of Graz, Graz, Austria.
Matthias R BaumgartnerDivision of Metabolism and Children's Research Center (CRC), University Children's Hospital, Zurich, University of Zurich, Zurich, Switzerland.
Michel HochuliDivision of Endocrinology, Diabetes, and Clinical Nutrition, University Hospital Zurich, University of Zurich, Zurich, Switzerland.ORCID 0000-0001-5227-6154
University of Zurich · CHMedical University of Graz · ATUniversity Hospital of Bern · CHUniversity of Bern · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe metabolic defect in glycogen storage disease type I (GSDI) results in fasting hypoglycemia and typical secondary metabolic abnormalities (eg, hypertriglyceridemia, hyperlactatemia, hyperuricemia). The aim of this study was to assess further perturbations of the metabolic network in GSDI patients under ongoing treatment.

methodsIn this prospective observational study, plasma samples of 14 adult patients (11 GSDIa, 3 GSDIb. Mean age 26.4 years, range 16-46 years) on standard treatment were compared to a cohort of 31 healthy controls utilizing ultra-high performance liquid chromatography (UHPLC) in combination with high resolution tandem mass spectrometry (HR-MS/MS) and subsequent statistical multivariate analysis. In addition, plasma fatty acid profiling was performed by GC/EI-MS.

resultsThe metabolomic profile showed alterations of metabolites in different areas of the metabolic network in both GSD subtypes, including pathways of fuel metabolism and energy generation, lipids and fatty acids, amino acid and methyl-group metabolism, the urea cycle, and purine/pyrimidine metabolism. These alterations were present despite adequate dietary treatment, did not correlate with plasma triglycerides or lactate, both parameters typically used to assess the quality of metabolic control in clinical practice, and were not related to the presence or absence of complications (ie, nephropathy or liver adenomas).

conclusionThe metabolic defect of GSDI has profound effects on a variety of metabolic pathways in addition to the known typical abnormalities. These alterations are present despite optimized dietary treatment, which may contribute to the risk of developing long-term complications, an inherent problem of GSDI which appears to be only partly modified by current therapy.

Indexed as

Glycogen Storage Disease Type IHypoglycemiaAdolescentAdultChromatography, High Pressure LiquidHumansMetabolomicsMiddle AgedTandem Mass SpectrometryYoung Adultcomplicationsglycogen storage disorderGSDlipidsmetabolic disturbancesmetabolomics

Identifiers

PMID34671989
PMCPMC9299190
OpenAlexW3206369965

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.