P21-positive nuclei

There are 2 papers on P21-positive nuclei in aging research: 1 observational study in people, 1 in animals. The newest story, Nov 12, 2026: “Donor type linked to distinct gene activity in human livers”.

Biomarker

2 papers study it1 more mentions it1 finding

1 new paper in 30 daysSee all 3 papers on P21-positive nuclei

  • Humans1
  • Animals1

Associations

1

Myofiber size

downin mice1

1 study
  1. P21-positive nuclei is associated with myofiber size in mice after cardiotoxin injury.

    “Fibers associated with a p21+ nucleus were smaller in size than myofibers not associated with a p21+ nucleus”

    Animalsafter cardiotoxin injuryskeletal muscle

    Senescence as a regulatory mechanism in skeletal muscle repair in young mice

    American journal of physiology. Cell physiology

Latest

Dec 2025: 0Jan 2026: 0Feb 2026: 0Mar 2026: 0Apr 2026: 0May 2026: 1Jun 2026: 1Jul 2026: 0Aug 2026: 0Sep 2026: 0Oct 2026: 0Nov 2026: 13 papers in 12 months
Aging Cell

Donor type linked to distinct gene activity in human livers

Activity of 1,548 genes differed between livers donated after brain death and circulatory death, including patterns linked to senescence, when cells stop dividing.Activity of 1,548 genes differed between livers donated after brain death and circulatory death, including patterns linked to senescence, when cells stop dividing.

Cross-sectional · 66 peopleMechanisms