Evidence map›Paper›PMID 24498143›Full record

ArticlePloS one2014

Green tea consumption after intense taekwondo training enhances salivary defense factors and antibacterial capacity.

Shiuan-Pey Lin, Chia-Yang Li, Katsuhiko Suzuki, Chen-Kang Chang, Kuei-Ming Chou, Shih-Hua Fang

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. 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
2.9field-weighted citation impact, top 10% 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, 28 citations in OpenAlex.

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  12. Antimicrobial peptides in 2014.Pharmaceuticals (Basel, Switzerland) · 2015
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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

6 authors at 4 institutions in 2 countries.

Shiuan-Pey LinSchool of Pharmacy, China Medical University, Taichung, Taiwan.
Chia-Yang LiDepartment of Genome Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
Katsuhiko SuzukiFaculty of Sport Sciences, Waseda University, Saitama, Japan.
Chen-Kang ChangSport Science Research Center, National Taiwan University of Physical Education and Sport, Taichung, Taiwan.
Kuei-Ming ChouDepartment of Combat Sports, National Taiwan University of Physical Education and Sport, Taichung, Taiwan.
Shih-Hua FangInstitute of Athletics, National Taiwan University of Physical Education and Sport, Taichung, Taiwan.
National Taiwan University of Sport · TWChina Medical University · TWKaohsiung Medical University · TWWaseda University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of this study was to investigate the short-term effects of green tea consumption on selected salivary defense proteins, antibacterial capacity and anti-oxidation activity in taekwondo (TKD) athletes, following intensive training. Twenty-two TKD athletes performed a 2-hr TKD training session. After training, participants ingested green tea (T, caffeine 6 mg/kg and catechins 22 mg/kg) or an equal volume of water (W). Saliva samples were collected at three time points: before training (BT-T; BT-W), immediately after training (AT-T; AT-W), and 30 min after drinking green tea or water (Rec-T; Rec-W). Salivary total protein, immunoglobulin A (SIgA), lactoferrin, α-amylase activity, free radical scavenger activity (FRSA) and antibacterial capacity were measured. Salivary total protein, lactoferrin, SIgA concentrations and α-amylase activity increased significantly immediately after intensive TKD training. After tea drinking and 30 min rest, α-amylase activity and the ratio of α-amylase to total protein were significantly higher than before and after training. In addition, salivary antibacterial capacity was not affected by intense training, but green tea consumption after training enhanced salivary antibacterial capacity. Additionally, we observed that salivary FRSA was markedly suppressed immediately after training and quickly returned to pre-exercise values, regardless of which fluid was consumed. Our results show that green tea consumption significantly enhances the activity of α-amylase and salivary antibacterial capacity.

Indexed as

Adultalpha-AmylasesAnti-Bacterial AgentsAntioxidantsAthletesDrinkingExerciseFemaleFree Radical ScavengersHumansImmunoglobulin ALactoferrinMaleMartial ArtsSalivaSalivary Proteins and Peptidesalpha-AmylasesAnti-Bacterial AgentsAntioxidantsFree Radical ScavengersImmunoglobulin ALactoferrinSalivary Proteins and PeptidesTea

Identifiers

PMID24498143
PMCPMC3907556
OpenAlexW2033505271

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.