Cited by 63Metabolomics and Mass Spectrometry StudiesLipid metabolism and biosynthesisLipid metabolism and disorders

Assessing individual metabolic responsiveness to a lipid challenge using a targeted metabolomic approach

Open access
Zivkovic, Angela M., Wiest, Michelle M., Nguyen, UyenThao, Nording, Malin L., Watkins, Steven M., German, J. Bruce·2009·Metabolomics

Abstract

The development of assessment techniques with immediate clinical applicability is a priority for resolving the growing epidemic in metabolic disease. Many imbalances in diet-dependent metabolism are not detectable in the fasted state. Resolving the high inter-individual variability in response to diet requires the development of techniques that can detect metabolic dysfunction at the level of the individual. The intra- and inter-individual variation in lipid metabolism in response to a standardized test meal was determined. Following an overnight fast on three different days, three healthy subjects consumed a test meal containing 40% of their daily calories. Plasma samples were collected at fasting, and 1, 3, 6, and 8 h after the test meal. Plasma fatty acid (FA) concentrations within separated lipid classes and lipoprotein fractions were measured at each time point. The intra-individual variation within each subject across three days was lower than the inter-individual differences among the three subjects for over 50% of metabolites in the triacylglycerol (TG), FA, and phosphatidylcholine (PC) lipid classes at 6 h, and for 25-50% of metabolites across lipid classes at 0, 1, 3, and 8 h. The consistency of response within individuals was visualized by principal component analysis (PCA) and confirmed by ANOVA. Three representative metabolites that discriminated among the three individuals in the apolipoprotein B (ApoB) fraction, TG16:1n7, TG18:2n6, and PC18:3n3, are discussed in detail. The postprandial responses of individuals were unique within metabolites that were individual discriminators (ID) of metabolic phenotype. This study shows that the targeted metabolomic measurement of individual metabolic phenotype in response to a specially formulated lipid challenge is possible even without lead-in periods, dietary and lifestyle control, or intervention over a 3-month period in healthy free-living individuals.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1007/s11306-008-0136-0

Cites

54 of 55 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Different people respond differently to foods and nutrients, warranting personalized approaches to nutrition interventions and services.

    “It is now understood that different people respond differently to foods and nutrients, warranting personalized approaches to nutrition interventions and services [3,17-21].”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Zivkovic, A. M., Wiest, M. M., Nguyen, U., Nording, M. L., Watkins, S. M., & German, J. B.
Affiliations
  • University of California, Davis (US)
  • Nestlé (Switzerland) (CH)
Corresponding author
German, J. Bruce
Venue
Metabolomics
Published
2008-11-15
Volume
5
Issue
2
Pages
209-218
ISSN
  • 1573-3882 (ISSN-L)
  • 1573-3890
OpenAlex
W2008412692
Cited by
63
References
54
Citations by year
2025: 2 · 2024: 2 · 2023: 1 · 2022: 2 · 2021: 2 · 2020: 2 · 2019: 2 · 2018: 4 · 2017: 5 · 2016: 5 · 2015: 4 · 2014: 7 · 2013: 8 · 2012: 6
FWCI
1.51
Type
journal article
Language
en
Open access
Locations
  • Metabolomics (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • reroDoc Digital Library (submittedVersion)
Funders
National Institute of Environmental Health Sciences (P42ES004699, R37ES002710, P01ES011269)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolomics and Mass Spectrometry Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Lipid metabolism and disorders
Keywords
postprandial lipid metabolism, plasma fatty acids, triglycerides, phosphatidylcholine, lipoprotein fractions, apolipoprotein B, interindividual variability, within-person variability, targeted metabolomics, metabolic dysfunction

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review