Evidence map›Paper›PMID 33674592›Full record

ArticleNPJ aging and mechanisms of disease2021

Granzyme B mediates impaired healing of pressure injuries in aged skin.

Christopher T Turner, Juliana Bolsoni, Matthew R Zeglinski, Hongyan Zhao, Tatjana Ponomarev, Katlyn Richardson, Sho Hiroyasu, Erin Schmid, Anthony Papp, David J Granville

Open access · goldAbstract read
In one paragraph

Article in NPJ aging and mechanisms of disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.6field-weighted citation impact, top 15% 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

12 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Granzyme B Expression in Conjunctiva of Patients with Pterygium.International journal of molecular sciences · 2024
    Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Expression of the GZMB Gene Polymorphism, SNP rs8192917, in 990 Han Chinese Patients with Postoperative Keloids.Medical science monitor : international medical journal of experimental and clinical research · 2022
    Article
  11. Review
  12. 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

10 authors at 2 institutions in 2 countries.

Christopher T TurnerInternational Collaboration on Repair Discoveries (ICORD) Centre, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, BC, Canada.ORCID http://orcid.org/0000-0001-7409-4386
Juliana BolsoniInternational Collaboration on Repair Discoveries (ICORD) Centre, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, BC, Canada.
Matthew R ZeglinskiInternational Collaboration on Repair Discoveries (ICORD) Centre, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, BC, Canada.ORCID http://orcid.org/0000-0002-3858-5791
Hongyan ZhaoInternational Collaboration on Repair Discoveries (ICORD) Centre, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, BC, Canada.
Tatjana PonomarevCentre for Heart Lung Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, BC, Canada.
Katlyn RichardsonInternational Collaboration on Repair Discoveries (ICORD) Centre, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, BC, Canada.
Sho HiroyasuInternational Collaboration on Repair Discoveries (ICORD) Centre, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, BC, Canada.
Erin SchmidBlusson Spinal Cord Wound Clinic, Vancouver Coastal Health, Vancouver, BC, Canada.
Anthony PappDepartment of Surgery, University of British Columbia, Vancouver, BC, Canada.
David J GranvilleInternational Collaboration on Repair Discoveries (ICORD) Centre, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, BC, Canada. dgranville@icord.org.ORCID http://orcid.org/0000-0001-6985-2816
University of British Columbia · CAVancouver Coastal Health · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pressure injuries (PIs), also known as bedsores or pressure ulcers, are a major cause of death and morbidity in the elderly. The serine protease, Granzyme B (GzmB), contributes to skin aging and impaired wound healing. Aging is a major risk factor for PIs; thus, the role of GzmB in PI pathogenesis was investigated. GzmB levels in human PI tissue and wound fluids were markedly elevated. A causative role for GzmB was assessed in GzmB knockout (GzmB-/-) and wild-type (WT) mice using a murine model of PI. An apolipoprotein E knockout (ApoE-/-) model of aging and vascular dysfunction was also utilized to assess GzmB in a relevant age-related model better resembling tissue perfusion in the elderly. PI severity displayed no difference between young GzmB-/- and WT mice. However, in aged mice, PI severity was reduced in mice lacking GzmB. Mechanistically, GzmB increased vascular wall inflammation and impaired extracellular matrix remodeling. Together, GzmB is an important contributor to age-dependent impaired PI healing.

Identifiers

PMID33674592
PMCPMC7935969
OpenAlexW3135020177

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.