Evidence map›Paper›PMID 30811817›Full record

ArticleAnimal science journal = Nihon chikusan Gakkaiho2019

Correlation between skeletal muscle fiber type and free amino acid levels in Japanese Black steers.

Daisuke Mashima, Yoshiaki Oka, Takafumi Gotoh, Shozo Tomonaga, Shoko Sawano, Mako Nakamura, Ryuichi Tatsumi, Wataru Mizunoya

Open access · hybridAbstract read
In one paragraph

Article in Animal science journal = Nihon chikusan Gakkaiho, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.0field-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

12 citing papers in PubMed, 31 citations in OpenAlex.

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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

8 authors at 2 institutions in 1 country.

Daisuke MashimaDepartment of Bioresource Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan.
Yoshiaki OkaDepartment of Bioresource Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan.
Takafumi GotohDepartment of Bioresource Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan.ORCID http://orcid.org/0000-0002-9211-9740
Shozo TomonagaDepartment of Bioresource Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan.ORCID http://orcid.org/0000-0003-0888-1407
Shoko SawanoDepartment of Bioresource Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan.
Mako NakamuraDepartment of Bioresource Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan.ORCID http://orcid.org/0000-0002-6129-7560
Ryuichi TatsumiDepartment of Bioresource Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan.
Wataru MizunoyaDepartment of Bioresource Sciences, Faculty of Agriculture, Kyushu University, Fukuoka, Japan.ORCID http://orcid.org/0000-0002-2258-1964
Kyushu University · JPKagoshima University · JP

Funding

KAKENHI 17H03908KAKENHI 17K07807KAKENHI 26712023Research Grant
6 · The paper itself

Abstract

Free amino acids are important components of tastants and flavor precursors in meat. To clarify the correlation between muscle fiber type and free amino acids, we determined the concentrations of various free amino acids and dipeptides in samples of different muscle tissues (n = 21), collected from 26-month-old Japanese Black steers (n = 3) at 2 days postmortem. The proportions of the myosin heavy chain (MyHC), slow (MyHC1) and fast (MyHC2) isoforms were determined by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). The contents of free amino acids and dipeptides were measured by high performance liquid chromatography (HPLC). The MyHC isoform composition varied among the tissue samples. The MyHC1 proportion ranged from 6.9% ± 3.9% to 83.3% ± 16.7%. We confirmed that there was a strong positive correlation between MyHC1 composition and total free amino acid concentrations, including those for two dipeptides. Among the 31 measured free amino acids and dipeptides, 11 showed significant positive correlations and five showed significant negative correlations with MyHC1 composition. These results suggest that a high MyHC1 content induces high free amino acid contents in bovine muscles possibly because of greater oxidative metabolism. This high level of free amino acids could contribute to the intense flavor of meat that is rich in slow-twitch fibers.

Indexed as

Food AnalysisFood QualityAmino AcidsAnimalsCattleDipeptidesMaleMuscle Fibers, Slow-TwitchMuscle, SkeletalMyosin Heavy ChainsProtein IsoformsRed MeatAmino AcidsDipeptidesMyosin Heavy ChainsProtein Isoformsbeeffiber typefree amino acidmyosin heavy chainskeletal muscle

Identifiers

PMID30811817
PMCPMC6594095
OpenAlexW2919433060

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.