Evidence map›Paper›PMID 32857156›Full record

ArticleThe journals of gerontology. Series A, Biological sciences and medical sciences2021

Maladaptive Changes Associated With Cardiac Aging Are Sex-Specific and Graded by Frailty and Inflammation in C57BL/6 Mice.

Alice E Kane, Elise S Bisset, Stefan Heinze-Milne, Kaitlyn M Keller, Scott A Grandy, Susan E Howlett

Open access · hybridAbstract read
In one paragraph

Article in The journals of gerontology. Series A, Biological sciences and medical sciences, 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
1.8field-weighted citation impact, top 16% 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, 33 citations in OpenAlex.

  1. Article
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  4. GSNOR deletion differentially alters age-related cardiac function in a sex-dependent manner.American journal of physiology. Heart and circulatory physiology · 2026
    Article
  5. Article
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  7. Mitochondrial Dysfunction in HFpEF: Potential Interventions Through Exercise.Journal of cardiovascular translational research · 2025
    Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. ALPK2 prevents cardiac diastolic dysfunction in heart failure with preserved ejection fraction.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Sex-specific phenotypes in the aging mouse heart and consequences for chronic fibrosis.American journal of physiology. Heart and circulatory physiology · 2022
    Article
  19. Review
  20. Review
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

6 authors at 2 institutions in 3 countries.

Alice E KaneDepartment of Genetics, Harvard Medical School, Boston, Massachusetts.
Elise S BissetDepartment of Pharmacology, Dalhousie University, Halifax, Nova Scotia, Canada.
Stefan Heinze-MilneDepartment of Pharmacology, Dalhousie University, Halifax, Nova Scotia, Canada.
Kaitlyn M KellerDepartment of Pharmacology, Dalhousie University, Halifax, Nova Scotia, Canada.
Scott A GrandyDepartment of Pharmacology, Dalhousie University, Halifax, Nova Scotia, Canada.
Susan E HowlettDepartment of Pharmacology, Dalhousie University, Halifax, Nova Scotia, Canada.
Dalhousie University · CAThe University of Sydney · AU

Funding

CIHR MOP 97973CIHR PGT 162462
6 · The paper itself

Abstract

We investigated whether late-life changes in cardiac structure and function were related to high levels of frailty and inflammation in male and female mice. Frailty (frailty index), ventricular structure/function (echocardiography), and serum cytokines (multiplex immunoassay) were measured in 16- and 23-month-old mice. Left ventricular (LV) mass and septal wall thickness increased with age in both sexes. Ejection fraction increased with age in males (60.4 ± 1.4 vs 68.9 ± 1.8%; p < .05) but not females (58.8 ± 2.5 vs 62.6 ± 2.4%). E/A ratios declined with age in males (1.6 ± 0.1 vs 1.3 ± 0.1; p < .05) but not females (1.4 ± 0.1 vs 1.3 ± 0.1) and this was accompanied by increased ventricular collagen levels in males. These changes in ejection fraction (r = 0.52; p = .01), septal wall thickness (r = 0.59; p = .002), E/A ratios (r = -0.49; p = .04), and fibrosis (r = 0.82; p = .002) were closely graded by frailty scores in males. Only septal wall thickness and LV mass increased with frailty in females. Serum cytokines changed modestly with age in both sexes. Nonetheless, in males, E/A ratios, LV mass, LV posterior wall thickness, and septal wall thickness increased as serum cytokines increased (eg, IL-6, IL-3, IL-1α, IL-1β, tumor necrosis factor-α, eotaxin, and macrophage inflammatory protein-1α), while ejection fraction declined with increasing IL-3 and granulocyte-macrophage colony stimulating factor. Cardiac outcomes were not correlated with inflammatory cytokines in females. Thus, changes in cardiac structure and function in late life are closely graded by both frailty and markers of inflammation, but this occurs primarily in males. This suggests poor overall health and inflammation drive maladaptive changes in older male hearts, while older females may be resistant to these adverse effects of frailty.

Indexed as

Adaptation, PhysiologicalAgingAnimalsBiomarkersCollagenCytokinesEchocardiography, DopplerFemaleFrailtyHeartInflammationInflammation MediatorsMaleMiceMice, Inbred C57BLMyocardiumBiomarkersCollagenCytokinesInflammation MediatorsChemokinesEchocardiographyFrailty indexPro-inflammatory cytokinesSex differences

Identifiers

PMID32857156
PMCPMC7812442
OpenAlexW3081648241

What OpenQuestion holds

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LicenceCC BY
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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.