Evidence map›Paper›PMID 34878536›Full record

Observational studyThe Journal of clinical endocrinology and metabolism2022

Plasma Metabolomics and Lipidomics Differentiate Obese Individuals by Peripheral Neuropathy Status.

Kai Guo, Masha G Savelieff, Amy E Rumora, Fadhl M Alakwaa, Brian C Callaghan, Junguk Hur, Eva L Feldman

Abstract readObservational Study
In one paragraph

Observational study in The Journal of clinical endocrinology and metabolism, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
–field-weighted citation impact
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

22 citing papers in PubMed.

  1. Article
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  9. Using maximum plasma concentration (CCancer chemotherapy and pharmacology · 2024
    Review
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  18. Review
  19. Serum lipidomic determinants of human diabetic neuropathy in type 2 diabetes.Annals of clinical and translational neurology · 2022
    Article
  20. Article
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.

Kai GuoDepartment of Neurology, University of Michigan, Ann Arbor, Michigan, USA.ORCID 0000-0002-4651-781X
Masha G SavelieffNeuroNetwork for Emerging Therapies, University of Michigan, Ann Arbor, Michigan, USA.ORCID 0000-0001-5575-2494
Amy E RumoraDepartment of Neurology, University of Michigan, Ann Arbor, Michigan, USA.ORCID 0000-0002-0788-3251
Fadhl M AlakwaaDepartment of Neurology, University of Michigan, Ann Arbor, Michigan, USA.ORCID 0000-0001-5349-7960
Brian C CallaghanDepartment of Neurology, University of Michigan, Ann Arbor, Michigan, USA.ORCID 0000-0002-8885-6748
Junguk HurDepartment of Biomedical Sciences, University of North Dakota, Grand Forks, North Dakota, USA.ORCID 0000-0002-0736-2149
Eva L FeldmanDepartment of Neurology, University of Michigan, Ann Arbor, Michigan, USA.ORCID 0000-0002-9162-2694

Funding

Regional Pilot And Feasibility Study Grants ProgramP30DK020572 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI WILLIAM H HERMAN · 2013 to 2026
$24.3M
Integrated Systems Biology Approach to Diabetic Microvascular ComplicationsR24DK082841 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI ABCOUWER, STEVEN F, BROSIUS, FRANK C · 2008 to 2020
$13.1M
Research BaseP30DK092926 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MARY ELLEN MICHELE HEISLER, ADESUWA B OLOMU · 2011 to 2026
$10.0M
The Effect of High Intensity Interval Training and Surgical Weight Loss On Distal Symmetric Polyneuropathy OutcomesR01DK115687 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI CALLAGHAN, BRIAN CHRISTOPHER · 2018 to 2022
$3.1M
The Impact of the Metabolic Syndrome on NeuropathyK23NS079417 · NINDS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI CALLAGHAN, BRIAN CHRISTOPHER · 2013 to 2017
$939k
Sphingolipid and Fatty Acid Biology in Prediabetes and NeuropathyR00DK119366 · NIDDK · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI RUMORA, AMY E. · 2021 to 2023
$747k
Linking Nerve Bioenergetics with Metabolomics: New Insights into Diabetic NeuroapthyR21NS102924 · NINDS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI FELDMAN, EVA LUCILLE · 2018 to 2019
$429k
Sphingolipid and Fatty Acid Biology in Prediabetes and NeuropathyK99DK119366 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI RUMORA, AMY E. · 2019 to 2020
$182k
NIDDK NIH HHS K99 DK119366NIDDK NIH HHS P30 DK020572NIDDK NIH HHS P30 DK092926NIDDK NIH HHS R00 DK119366NIDDK NIH HHS R01 DK115687NIDDK NIH HHS R24 DK082841NINDS NIH HHS K23 NS079417NINDS NIH HHS R21 NS102924
6 · The paper itself

Abstract

contextPeripheral neuropathy (PN) is a frequent prediabetes and type 2 diabetes (T2D) complication. Multiple clinical studies reveal that obesity and dyslipidemia can also drive PN progression, independent of glycemia, suggesting a complex interplay of specific metabolite and/or lipid species may underlie PN.

objectiveThis work aimed to identify the plasma metabolomics and lipidomics signature that underlies PN in an observational study of a sample of individuals with average class 3 obesity.

methodsWe performed plasma global metabolomics and targeted lipidomics on obese participants with (n = 44) and without PN (n = 44), matched for glycemic status, vs lean nonneuropathic controls (n = 43). We analyzed data by Wilcoxon, logistic regression, partial least squares-discriminant analysis, and group-lasso to identify differential metabolites and lipids by obesity and PN status. We also conducted subanalysis by prediabetes and T2D status.

resultsLean vs obese comparisons, regardless of PN status, identified the most significant differences in gamma-glutamyl and branched-chain amino acid metabolism from metabolomics analysis and triacylglycerols from lipidomics. Stratification by PN status within obese individuals identified differences in polyamine, purine biosynthesis, and benzoate metabolism. Lipidomics found diacylglycerols as the most significant subpathway distinguishing obese individuals by PN status, with additional contributions from phosphatidylcholines, sphingomyelins, ceramides, and dihydroceramides. Stratifying the obese group by glycemic status did not affect discrimination by PN status.

conclusionObesity may be as strong a PN driver as prediabetes or T2D in a sample of individuals with average class 3 obesity, at least by plasma metabolomics and lipidomics profile. Metabolic and complex lipid pathways can differentiate obese individuals with and without PN, independent of glycemic status.

Indexed as

Diabetes Mellitus, Type 2Peripheral Nervous System DiseasesPrediabetic StateHumansLipidomicsLipidsMetabolomicsObesityLipidscomplex lipiddiacylglycerollipidomicsmetabolomicsobesitypolyneuropathy

Identifiers

PMID34878536
PMCPMC8947234

What OpenQuestion holds

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Registered trials

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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.