Cited by 43Tissue Engineering and Regenerative Medicine3D Printing in Biomedical ResearchLiver physiology and pathology

The DOI matches its Crossref record; 56 of the 57 references it cites were found in a registry or an index.

Liver donor age affects hepatocyte function through age-dependent changes in decellularized liver matrix

Open access

Abstract

The only treatment available for end stage liver diseases is orthotopic liver transplantation. Although there is a big donor scarcity, many donor livers are discarded as they do not qualify for transplantation. Alternatively, decellularization of discarded livers can potentially render them transplantable upon recellularization and functional testing. The success of this approach will heavily depend on the quality of decellularized scaffolds which might show variability due to factors including age. Here we assessed the age-dependent differences in liver extracellular matrix (ECM) using rat and human livers. We show that the liver matrix has higher collagen and glycosaminoglycan content and a lower growth factor content with age. Importantly, these changes lead to deterioration in primary hepatocyte function potentially due to ECM stiffening and integrin-dependent signal transduction. Overall, we show that ECM changes with age and these changes significantly affect cell function thus donor age should be considered as an important factor for bioengineering liver substitutes.

Overview

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 · 10.1016/j.biomaterials.2021.120689

Cites

56 of 56 references verified0 citation errors · 0 not checkable

Statistics

Verification

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?

  • The content of laminin, elastin, and growth factors decreases with age.

    “Moreover, the content of laminin, elastin, and growth factors decreases with age [30,37,84,85].”

    From Liver tissue engineering using decellularized scaffolds: Current progress, challenges, and opportunities (2024) · cites this paper as [30]

    The Results report that several growth factors were significantly lower in old rat liver matrix, supporting that part of the sentence. But the same section identifies laminins and elastin in old matrix, and the Discussion says laminins were more abundant in old human liver matrix and elastin was detected only in old rat matrix—the opposite of the claimed decrease. (LLM, conf=0.90)

    Checked by a reasoning model — may be wrong.

    Experimental — accuracy not yet measured
  • One significant disadvantage of using human organs is the age-related changes of the extracellular matrix (ECM).

    “One significant disadvantage of using human organs is the age-related changes of the extracellular matrix (ECM) [[30], [31], [32]].”

Self-check

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

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

Citations

Cites

Flagged first, then by citations

1 of the 57 references couldn’t be matched to a known paper.

Research works printed but not linked: 1

  1. Jaramillo, 2018, Decellularized human liver extracellular matrix (hDLM)-mediated hepatic differentiation of human induced pluripotent stem cells (hIPSCs), J. Tissue Eng. Regen. Med., 12, e1962, 10.1002/term.2627 · DOI

Cited by

Sorted by citations

Metadata

Authors
Acun, A., Oganesyan, R., Uygun, K., Yeh, H., Yarmush, M. L., & Uygun, B. E.
Affiliations
  • Harvard University (US)
  • Massachusetts General Hospital (US)
  • Rutgers, The State University of New Jersey (US)
Corresponding author
Uygun, Basak E.
Venue
Biomaterials
Publisher
Elsevier BV
Published
2021-03
Volume
270
Pages
120689
ISSN
0142-9612 (ISSN-L)
OpenAlex
W3122728245
Cited by
39
References
57
Citations by year
2026: 4 · 2025: 5 · 2024: 12 · 2023: 7 · 2022: 9 · 2021: 2
FWCI
7.05
Type
journal article
Language
en
Open access
Locations
  • Biomaterials (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Shriners Hospitals for Children
  • National Institutes of Health
Topics
  • Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
  • Physical Sciences › Engineering › Biomedical Engineering › 3D Printing in Biomedical Research
  • Health Sciences › Medicine › Hepatology › Liver physiology and pathology
Keywords
donor age, hepatocyte function, collagen, glycosaminoglycans, growth factors, extracellular matrix stiffness, integrin signaling, orthotopic liver transplantation
MeSH terms
Animals, Extracellular Matrix, Liver, Hepatocytes, Tissue Engineering, Rats, Tissue Scaffolds

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