Evidence map›Paper›PMID 31899774›Full record

ArticlePloS one2020

In vivo elongation of thin filaments results in heart failure.

Lei Mi-Mi, Gerrie P Farman, Rachel M Mayfield, Joshua Strom, Miensheng Chu, Christopher T Pappas, Carol C Gregorio

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.3field-weighted citation impact, top 18% 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

21 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
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  3. Localization and functional exploration of leiomodin-2's C-terminal binding sites.Biochimica et biophysica acta. Proteins and proteomics · 2026
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  11. Developmental nicotine exposure alters cardiovascular structure and function in neonatal and juvenile rats.American journal of physiology. Heart and circulatory physiology · 2024
    Article
  12. Article
  13. Article
  14. A nemaline myopathy-linked mutation inhibits the actin-regulatory functions of tropomodulin and leiomodin.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  15. A human FLII gene variant alters sarcomeric actin thin filament length and predisposes to cardiomyopathy.Proceedings of the National Academy of Sciences of the United States of America · 2023
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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

7 authors at 1 institution in 1 country.

Lei Mi-MiDepartment of Cellular and Molecular Medicine and Sarver Molecular Cardiovascular Research Program, The University of Arizona, Tucson, AZ, United States of America.ORCID 0000-0002-8595-0552
Gerrie P FarmanDepartment of Cellular and Molecular Medicine and Sarver Molecular Cardiovascular Research Program, The University of Arizona, Tucson, AZ, United States of America.
Rachel M MayfieldDepartment of Cellular and Molecular Medicine and Sarver Molecular Cardiovascular Research Program, The University of Arizona, Tucson, AZ, United States of America.
Joshua StromDepartment of Cellular and Molecular Medicine and Sarver Molecular Cardiovascular Research Program, The University of Arizona, Tucson, AZ, United States of America.
Miensheng ChuDepartment of Cellular and Molecular Medicine and Sarver Molecular Cardiovascular Research Program, The University of Arizona, Tucson, AZ, United States of America.
Christopher T PappasDepartment of Cellular and Molecular Medicine and Sarver Molecular Cardiovascular Research Program, The University of Arizona, Tucson, AZ, United States of America.
Carol C GregorioDepartment of Cellular and Molecular Medicine and Sarver Molecular Cardiovascular Research Program, The University of Arizona, Tucson, AZ, United States of America.
University of Arizona · US

Funding

Deciphering the role of Lmod2 in thin filament length regulation and dilated cardiomyopathyR01HL123078 · NHLBI · UNIVERSITY OF ARIZONA · PI Carol C Gregorio, Shashank Shekhar · 2015 to 2026
$5.6M
REGULATION OF THE ACTIN FILAMENT POINTED END DYNAMICS IN HEALTH AND DISEASER01GM120137 · NIGMS · WASHINGTON STATE UNIVERSITY · PI GALKIN, VITOLD, GREGORIO, CAROL C · 2017 to 2024
$4.0M
NHLBI NIH HHS R01 HL123078NIGMS NIH HHS R01 GM120137
6 · The paper itself

Abstract

A novel cardiac-specific transgenic mouse model was generated to identify the physiological consequences of elongated thin filaments during post-natal development in the heart. Remarkably, increasing the expression levels in vivo of just one sarcomeric protein, Lmod2, results in ~10% longer thin filaments (up to 26% longer in some individual sarcomeres) that produce up to 50% less contractile force. Increasing the levels of Lmod2 in vivo (Lmod2-TG) also allows us to probe the contribution of Lmod2 in the progression of cardiac myopathy because Lmod2-TG mice present with a unique cardiomyopathy involving enlarged atrial and ventricular lumens, increased heart mass, disorganized myofibrils and eventually, heart failure. Turning off of Lmod2 transgene expression at postnatal day 3 successfully prevents thin filament elongation, as well as gross morphological and functional disease progression. We show here that Lmod2 has an essential role in regulating cardiac contractile force and function.

Indexed as

Actin CytoskeletonAnimalsAnimals, NewbornCardiomyopathiesCytoskeletal ProteinsFemaleHeart FailureMaleMiceMice, TransgenicMuscle ContractionMuscle ProteinsMuscle, SkeletalSarcomeresCytoskeletal Proteinsleiomodin protein, mouseMuscle Proteins

Identifiers

PMID31899774
PMCPMC6941805
OpenAlexW2998454548

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.