Evidence map›Paper›PMID 26222548›Full record

ArticlePloS one2015

Improvement of Endurance Based on Muscle Fiber-Type Composition by Treatment with Dietary Apple Polyphenols in Rats.

Wataru Mizunoya, Hideo Miyahara, Shinpei Okamoto, Mariko Akahoshi, Takahiro Suzuki, Mai-Khoi Q Do, Hideaki Ohtsubo, Yusuke Komiya, Mu Lan, Toshiaki Waga and 5 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.7field-weighted citation impact, top 17% 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

11 citing papers in PubMed, 32 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

15 authors at 5 institutions in 2 countries.

Wataru MizunoyaDepartment of Animal and Marine Bioresource Sciences, Graduate School of Agriculture, Kyushu University, Hakozaki, Fukuoka, Japan.
Hideo MiyaharaDepartment of Animal and Marine Bioresource Sciences, Graduate School of Agriculture, Kyushu University, Hakozaki, Fukuoka, Japan.
Shinpei OkamotoDepartment of Animal and Marine Bioresource Sciences, Graduate School of Agriculture, Kyushu University, Hakozaki, Fukuoka, Japan.
Mariko AkahoshiDepartment of Animal and Marine Bioresource Sciences, Graduate School of Agriculture, Kyushu University, Hakozaki, Fukuoka, Japan.
Takahiro SuzukiDepartment of Animal and Marine Bioresource Sciences, Graduate School of Agriculture, Kyushu University, Hakozaki, Fukuoka, Japan.
Mai-Khoi Q DoDepartment of Animal and Marine Bioresource Sciences, Graduate School of Agriculture, Kyushu University, Hakozaki, Fukuoka, Japan.
Hideaki OhtsuboDepartment of Animal and Marine Bioresource Sciences, Graduate School of Agriculture, Kyushu University, Hakozaki, Fukuoka, Japan.
Yusuke KomiyaDepartment of Animal and Marine Bioresource Sciences, Graduate School of Agriculture, Kyushu University, Hakozaki, Fukuoka, Japan.
Mu LanDepartment of Animal and Marine Bioresource Sciences, Graduate School of Agriculture, Kyushu University, Hakozaki, Fukuoka, Japan.
Toshiaki WagaFundamental Research Laboratory, Asahi Breweries, Ltd., Moriya, Ibaraki, Japan.
Akira IwataDepartment of Physical Therapy, Faculty of Comprehensive Rehabilitation, Osaka Prefecture University, Habikino, Osaka, Japan.
Koichi NakazatoDepartment of Exercise Physiology, Graduate School of Health and Sport Sciences, Nippon Sport Science University, Fukasawa, Tokyo, Japan.
Yoshihide IkeuchiDepartment of Animal and Marine Bioresource Sciences, Graduate School of Agriculture, Kyushu University, Hakozaki, Fukuoka, Japan.
Judy E AndersonDepartment of Biological Sciences, Faculty of Science, University of Manitoba, Winnipeg, MB, Canada.
Ryuichi TatsumiDepartment of Animal and Marine Bioresource Sciences, Graduate School of Agriculture, Kyushu University, Hakozaki, Fukuoka, Japan.
Kyushu University · JPAsahi Breweries (Japan) · JPNippon Sport Science University · JPOsaka Prefecture University · JPUniversity of Manitoba · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A recent study demonstrated a positive effect of apple polyphenol (APP) intake on muscle endurance of young-adult animals. While an enhancement of lipid metabolism may be responsible, in part, for the improvement, the contributing mechanisms still need clarification. Here we show that an 8-week intake of 5% (w/w) APP in the diet, up-regulates two features related to fiber type: the ratio of myosin heavy chain (MyHC) type IIx/IIb and myoglobin protein expression in plantaris muscle of 9-week-old male Fischer F344 rats compared to pair-fed controls (P < 0.05). Results were demonstrated by our SDS-PAGE system specialized for MyHC isoform separation and western blotting of whole muscles. Animal-growth profiles (food intake, body-weight gain, and internal-organ weights) did not differ between the control and 5% APP-fed animals (n = 9/group). Findings may account for the increase in fatigue resistance of lower hind limb muscles, as evidenced by a slower decline in the maximum isometric planter-flexion torque generated by a 100-s train of electrical stimulation of the tibial nerve. Additionally, the fatigue resistance was lower after 8 weeks of a 0.5% APP diet than after 5% APP, supporting an APP-dose dependency of the shift in fiber-type composition. Therefore, the present study highlights a promising contribution of dietary APP intake to increasing endurance based on fiber-type composition in rat muscle. Results may help in developing a novel strategy for application in animal sciences, and human sports and age-related health sciences.

Indexed as

MalusAnimalsElectric StimulationHumansIsometric ContractionMaleMuscle Fibers, SkeletalMuscle, SkeletalMyoglobinMyosin Heavy ChainsPhysical EndurancePhytochemicalsPolyphenolsProtein IsoformsRatsRats, Inbred F344MyoglobinMyosin Heavy ChainsPhytochemicalsPolyphenolsProtein IsoformsSkeletal Muscle Myosins

Identifiers

PMID26222548
PMCPMC4519157
OpenAlexW1639809696

What OpenQuestion holds

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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.