Summary of Study ST000427

This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench, https://www.metabolomicsworkbench.org, where it has been assigned Project ID PR000332. The data can be accessed directly via it's Project DOI: 10.21228/M84G7M This work is supported by NIH grant, U2C- DK119886.

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Study IDST000427
Study Titletargeted metabolomics of gastrocnemius tissue samples obtained from 6 month old (adult) mice- Both Sham and after inducing lung injury (part I)
Study Typetargeted metabolomic analysis
Study SummaryIntroduction: Older patients are more likely to acquire and die from acute respiratory distress syndrome (ARDS) and muscle weakness may be more significant in older survivors. Recent data implicate muscle ring finger protein 1 (MuRF1) in lung injury-induced skeletal muscle atrophy in young mice and identify an alternative role for MuRF1 in cardiac metabolism regulation through inhibition of fatty acid oxidation. Objectives: To develop a model of lung injury-induced muscle wasting in old mice and to evaluate the skeletal muscle metabolomic profile of adult and old acute lung injury (ALI) mice. Methods: Young (2 month), adult (6 month) and old (20 month) male C57Bl6J mice underwent Sham (intratracheal H2O) or ALI [intratracheal E. coli lipopolysaccharide (i.t. LPS)] conditions and muscle functional testing. Metabolomic analysis on gastrocnemius muscle was performed using gas chromatography-mass spectrometry (GC-MS). Results: Old ALI mice had increased mortality and failed to recover skeletal muscle function compared to adult ALI mice. Muscle MuRF1 expression was increased in old ALI mice at day 3. Non-targeted muscle metabolomics revealed alterations in amino acid biosynthesis and fatty acid metabolism in old ALI mice. Targeted metabolomics of fatty acid intermediates (acyl-carnitines) and amino acids revealed a reduction in long chain acyl-carnitines in old ALI mice. Conclusion: This study demonstrates age-associated susceptibility to ALI-induced muscle wasting which parallels a metabolomic profile suggestive of altered muscle fatty acid metabolism. MuRF1 activation may contribute to both atrophy and impaired fatty acid oxidation, which may synergistically impair muscle function in old ALI mice.
Institute
University of North Carolina;Duke University
DepartmentUNC McAllister Heart Institute;Duke Molecular Physiology Institute
LaboratoryMultiple Centers
Last NameIlaiwy;WIllis
First NameAmro;Monte
Address111 Mason Farm road, Chapel Hill, North Carolina, 27599-7126, USA
Emailmonte_willis@med.unc.edu, amroilaiwy@gmail.com
Phone210-596-0171
Submit Date2016-07-05
Analysis Type DetailGC-MS
Release Date2016-09-23
Release Version1
Amro Ilaiwy Amro Ilaiwy
Monte WIllis Monte WIllis
https://dx.doi.org/10.21228/M84G7M
ftp://www.metabolomicsworkbench.org/Studies/ application/zip

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Project:

Project ID:PR000332
Project DOI:doi: 10.21228/M84G7M
Project Title:Lung injury-induced skeletal muscle wasting in aged mice is linked to alterations in long chain fatty acid metabolism
Project Type:Metabolomics
Project Summary:Non targeted and targeted metabolomic analysis on gastrocnemius tissue samples obtained from skeletal muscle of adult and old mice after inducing lung injury
Institute:University of North Carolina at Chapel Hill
Department:McAllister Heart Institute, Department of Internal Medicine
Laboratory:Multiple Centers
Last Name:Ilaiwy; Willis
First Name:Amro; Monte
Address:111 Mason Farm road, Chapel Hill, North Carolina, 27599-7126, USA
Email:monte_willis@med.unc.edu, amroilaiwy@gmail.com
Phone:210-596-0171
Funding Source:NIH, Fondation Leducq, Claude D. Pepper Older Americans Independence Center, the American Thoracic Society Foundation

Subject:

Subject ID:SU000448
Subject Type:Animal
Subject Species:Mus musculus
Taxonomy ID:10090
Species Group:Mammal

Factors:

Subject type: Animal; Subject species: Mus musculus (Factor headings shown in green)

mb_sample_id local_sample_id Group
SA021614M39ALI 6mth
SA021615M38ALI 6mth
SA021616M37ALI 6mth
SA021617M62ALI 6mth
SA021618M64ALI 6mth
SA021619M66ALI 6mth
SA021620M65ALI 6mth
SA021621M36ALI 6mth
SA021622M63ALI 6mth
SA021623M35ALI 6mth
SA021624M29Sham 6mth
SA021625M28Sham 6mth
SA021626M12Sham 6mth
SA021627M11Sham 6mth
SA021628M30Sham 6mth
SA021629M53Sham 6mth
SA021630M9Sham 6mth
SA021631M55Sham 6mth
SA021632M54Sham 6mth
SA021633M10Sham 6mth
Showing results 1 to 20 of 20

Collection:

Collection ID:CO000442
Collection Summary:Gastrocnemius tissue was harvested and then flash frozen in a liquid nitrogen cooled biopress
Sample Type:Muscle

Treatment:

Treatment ID:TR000462
Treatment Summary:Treatment Summary Fraction of gastrocnemius tissue weighed (25–50 mg wet weight), then the finely cut up tissue quickly added to fresh pre-made buffer (50 % acetyl-nitrile, 50 % water, 0.3% formic acid) at a standard concentration of 25 mg/475 mcl buffer then fully homogenized on ice for 10–25 s and placed on dry ice/stored at - 80C

Sample Preparation:

Sampleprep ID:SP000455
Sampleprep Summary:Amino acids and acyl-carnitines were analyzed using stable isotope dilution techniques. Amino acids and acyl-carnitine measurements were made by flow injection tandem mass spectrometry

Combined analysis:

Analysis ID AN000677
Analysis type MS
Chromatography type GC
Chromatography system Waters Acquity
Column Waters ACQUITY UPLC (1.7um)
MS Type EI
MS instrument type Single quadrupole
MS instrument name Agilent 5975
Ion Mode POSITIVE
Units uM

Chromatography:

Chromatography ID:CH000489
Instrument Name:Waters Acquity
Column Name:Waters ACQUITY UPLC (1.7um)
Chromatography Type:GC

MS:

MS ID:MS000603
Analysis ID:AN000677
Instrument Name:Agilent 5975
Instrument Type:Single quadrupole
MS Type:EI
Ion Mode:POSITIVE
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