Evidence map›Paper›PMID 33220504›Full record

ArticleBone2021

Post-translational modifications in collagen type I of bone in a mouse model of aging.

Amy Creecy, Kyle L Brown, Kristie L Rose, Paul Voziyan, Jeffry S Nyman

Open access · greenAbstract read
In one paragraph

Article in Bone, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

23 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Alzheimer's Disease Risk Factor APOE4 Exerts Dimorphic Effects on Female Bone.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Obese-diabetic femaleJBMR plus · 2025
    Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Treatment with PB125Annals of biomedical engineering · 2024
    Article
  14. Article
  15. Article
  16. Article
  17. Article
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  19. 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

5 authors at 2 institutions in 1 country.

Amy CreecyDepartment of Biomedical Engineering, Vanderbilt University, Nashville, TN 37232, USA; Department of Orthopaedic Surgery, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Center for Bone Biology, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
Kyle L BrownDepartment of Medicine, Division of Nephrology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Center for Structural Biology, Vanderbilt University, Nashville, TN, 37232, USA.
Kristie L RoseDepartment of Biochemistry, Vanderbilt University, Nashville, TN 37232, USA.
Paul VoziyanDepartment of Medicine, Division of Nephrology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232, USA. Electronic address: paul.voziyan@vumc.org.
Jeffry S NymanDepartment of Biomedical Engineering, Vanderbilt University, Nashville, TN 37232, USA; Department of Orthopaedic Surgery, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Center for Bone Biology, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, TN 37212, USA. Electronic address: jeffry.s.nyman@vumc.org.
Vanderbilt University Medical Center · USVanderbilt University · US

Funding

The Roles of Collagen and Water in the Fracture Resistance of BoneR01AR063157 · NIAMS · VANDERBILT UNIVERSITY MEDICAL CENTER · PI NYMAN, JEFFRY STEPHEN · 2012 to 2025
$3.9M
Integrated Training in Engineering and DiabetesT32DK101003 · NIDDK · VANDERBILT UNIVERSITY · PI Jamey D. Young · 2014 to 2026
$3.9M
The Role of Tissue Matrix in the Fracture Resistance of Diabetic BoneR21AR067871 · NIAMS · VANDERBILT UNIVERSITY MEDICAL CENTER · PI NYMAN, JEFFRY STEPHEN · 2016 to 2017
$382k
Diabetes-Related Changes Affecting Bone QualityI01BX004297 · VA · VETERANS HEALTH ADMINISTRATION · PI NYMAN, JEFFRY STEPHEN · 2019 to 2023
–
BLRD VA I01 BX004297NIAMS NIH HHS R01 AR063157NIAMS NIH HHS R21 AR067871NIDDK NIH HHS T32 DK101003
6 · The paper itself

Abstract

The fracture resistance of cortical bone and matrix hydration are known to decline with advanced aging. However, the underlying mechanisms remain poorly understood, and so we investigated levels of matrix proteins and post-translational modifications (PTM) of collagen I in extracts from the tibia of 6-mo. and 20-mo. old BALB/c mice (female and male analysis done separately). Liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis revealed that the levels of collagen I deamidation at specific asparagine (Asn) and glutamine (Gln) residues significantly increased with age. Other non-enzymatic PTMs such as carboxymethylation of lysine (CML) were detected as well, but the relative abundance did not vary with age. No significant age-related differences in the abundance of hydroxylysine glycosylation sites were found, but hydroxylation levels at a few of the numerous lysine and proline hydroxylation sites significantly changed by a small amount with age. We performed molecular modeling and dynamics (MD) simulations for three triple helical fragments representing collagen I regions with prominent age-dependent increases in deamidation as identified by LC-MS/MS of male extracts. These 3 fragments included deamidated Asn and Gln residues as follows: 1) an Asn

Indexed as

Collagen Type ITandem Mass SpectrometryAgingAnimalsChromatography, LiquidFemaleMaleMiceMice, Inbred BALB CProtein Processing, Post-TranslationalCollagen Type IAdvanced glycation end-productsAgingDeamidationMass spectrometryMolecular dynamicsMolecular modelingPost-translational modificationsPreclinical model

Identifiers

PMID33220504
PMCPMC7968971
OpenAlexW3103963748

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.