Evidence map›Paper›PMID 16773370›Full record

ArticleJournal of comparative physiology. B, Biochemical, systemic, and environmental physiology2006

Myosin isoforms and fibre types in jaw-closing muscles of Australian marsupials.

Joseph F Y Hoh, Lucia H D Kang, Louise G Sieber, Jacqueline H Y Lim, Wendy W H Zhong

Abstract read
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In one paragraph

Article in Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.0field-weighted citation impact, top 28% 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

15 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Article
  3. Research into the physiology of myosins - a personal odyssey.European journal of translational myology · 2025
    Article
  4. Review
  5. Review
  6. Developmental, physiologic and phylogenetic perspectives on the expression and regulation of myosin heavy chains in mammalian skeletal muscles.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2023
    Review
  7. Article
  8. Article
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  10. Article
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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

5 authors at 1 institution in 1 country.

Joseph F Y HohDiscipline of Physiology and Institute for Biomedical Research, School of Medical Sciences, Faculty of Medicine, Bldg F13, The University of Sydney, Sydney, NSW 2006, Australia. joeh@physiol.usyd.edu.au
Lucia H D Kang
Louise G Sieber
Jacqueline H Y Lim
Wendy W H Zhong
University of Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Myosin heavy chains (MyHCs) and fibre types in the masseter muscle of seven species of Australian marsupials (brushtail and ringtail possums, bettong, bandicoot, dunnart, two species of antechinuses) spanning three orders were studied by native myosin electrophoresis, SDS-PAGE, immunoblotting and immunohistochemistry. We found only two fibre types in the masseter muscles of these animals: (1) masticatory fibres expressing masticatory MyHC, and (2) hybrid alpha/beta fibres that co-express alpha-cardiac and beta-cardiac MyHCs. Masticatory fibres predominate in most species, being appropriate for predation or for chewing tough vegetable matter. The relative abundance of alpha/beta fibres decreased from 60% to 0 in the order: ringtail possum > brushtail possum > bettong > bandicoot > dunnart/antechinus. These variations in masseter fibre type are correlated with decreasing amounts of vegetable matter in the diets of these animals. The results are in contrast to earlier work on masseter fibres of macropodids that expressed alpha-cardiac MyHC almost homogeneously. The fact that the bettong (Family: Potoroidae), which belong to the same marsupial superfamily (Macropodoidea) as kangaroos and wallabies (Family: Macropodidae), has not specialized in the exclusive expression of alpha-cardiac MyHC as members of the latter family suggests that this specialization was of recent phylogenetic origin (30 million years before present).

Indexed as

Adaptation, PhysiologicalAnimalsBiological EvolutionBlotting, WesternElectrophoresisElectrophoresis, Polyacrylamide GelImmunohistochemistryMarsupialiaMasseter MuscleMyosin Heavy ChainsOpossumsProtein IsoformsVentricular MyosinsMyosin Heavy ChainsProtein IsoformsVentricular Myosins

Identifiers

PMID16773370
OpenAlexW1978972120

What OpenQuestion holds

Textmetadata
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.