Evidence map›Paper›PMID 34202133›Full record

ArticleAntioxidants (Basel, Switzerland)2021

(-)-Epicatechin-Enriched Extract from

Hyeyeong Seo, Seok-Hee Lee, Yooheon Park, Hee-Seok Lee, Jeong Sup Hong, Cho Young Lim, Dong Hyeon Kim, Sung-Soo Park, Hyung Joo Suh, Ki-Bae Hong

Open access · goldAbstract read
In one paragraph

Article in Antioxidants (Basel, Switzerland), 2021. 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
1.8field-weighted citation impact, top 15% 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, 19 citations in OpenAlex.

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  10. Novel Bio-FunctionalMolecules (Basel, Switzerland) · 2022
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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

10 authors at 5 institutions in 1 country.

Hyeyeong SeoDepartment of Integrated Biomedical and Life Science, Graduate School, Korea University, Seoul 02841, Korea.
Seok-Hee LeeDepartment of Food Science and Biotechnology, Dongguk University, Goyang 10326, Korea.
Yooheon ParkDepartment of Food Science and Biotechnology, Dongguk University, Goyang 10326, Korea.
Hee-Seok LeeDepartment of Food Science and Technology, Chung-Ang University, Anseong 17546, Korea.
Jeong Sup HongAnimal Center and Preclinical Evaluation Research Institute, Yonam College, Cheonan 31005, Korea.
Cho Young LimR&D Center, BTC Corporation, Ansan 15588, Korea.
Dong Hyeon KimR&D Center, BTC Corporation, Ansan 15588, Korea.
Sung-Soo ParkDepartment of Food Science and Nutrition, Jeju National University, Jeju 63243, Korea.ORCID 0000-0003-0319-6670
Hyung Joo SuhDepartment of Integrated Biomedical and Life Science, Graduate School, Korea University, Seoul 02841, Korea.ORCID 0000-0001-8869-3929
Ki-Bae HongDepartment of Food Science and Nutrition, Jeju National University, Jeju 63243, Korea.ORCID 0000-0001-5199-2685
Dongguk University · KRJeju National University · KRKorea University · KRCheonan Yonam College · KRChung-Ang University · KR

Funding

Joo Myung Moon S2449634
6 · The paper itself

Abstract

Loss of skeletal muscle mass and function with age represents an important source of frailty and functional decline in the elderly. Antioxidants from botanical extracts have been shown to enhance the development, mass, and strength of skeletal muscle by influencing age-related cellular and molecular processes. Tannase-treated green tea extract contains high levels of the antioxidants (-)-epicatechin (EC) and gallic acid that may have therapeutic benefits for age-related muscle decline. The aim of this study was to investigate the effect of tannase-treated green tea extract on various muscle-related parameters, without concomitant exercise, in a single-center, randomized, double-blind, placebo-controlled study. Administration of tannase-treated green tea extract (600 mg/day) for 12 weeks significantly increased isokinetic flexor muscle and handgrip strength in the treatment group compared with those in the placebo (control) group. In addition, the control group showed a significant decrease in arm muscle mass after 12 weeks, whereas no significant change was observed in the treatment group. Blood serum levels of follistatin, myostatin, high-sensitivity C-reactive protein (hs-CRP), interleukin (IL)-6, IL-8, insulin-like growth factor-1 (IGF-1), and cortisol were analyzed, and the decrease in myostatin resulting from the administration of tannase-treated green tea extract was found to be related to the change in muscle mass and strength. In summary, oral administration of tannase-treated green tea extract containing antioxidants without concomitant exercise can improve muscle mass and strength and may have therapeutic benefits in age-related muscle function decline.

Indexed as

antioxidants(−)-epicatechingallic acidgreen teaskeletal muscletannase

Identifiers

PMID34202133
PMCPMC8300738
OpenAlexW3173995467

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.