Evidence map›Paper›PMID 38649360›Full record

ArticleNPJ science of food2024

Distinguishable short-term effects of tea and water drinking on human saliva redox.

Xiangyu Meng, Pik Han Chong, Lijing Ke, Pengwei Zhang, Li Li, Binbin Song, Zhaoshuo Yu, Pingfan Rao

Open access · goldAbstract read
In one paragraph

Article in NPJ science of food, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.3field-weighted citation impact, top 43% 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

2 citing papers in PubMed, 1 citations in OpenAlex.

  1. Dentistry journal · 2026
    Review
  2. Article
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 5 institutions in 4 countries.

Xiangyu MengFood Nutrition Sciences Centre, Zhejiang Gongshang University, Hangzhou, Zhejiang, 310018, China.
Pik Han ChongClinical Nutrition Research Centre, Singapore Institute of Food and Biotechnology Innovation, Agency for Science, Technology and Research (A*STAR), Singapore, 117599, Singapore.
Lijing KeFood Nutrition Sciences Centre, Zhejiang Gongshang University, Hangzhou, Zhejiang, 310018, China. L.Ke@leeds.ac.uk.ORCID http://orcid.org/0000-0002-4358-2210
Pengwei ZhangAffiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Hangzhou, 310015, China.
Li LiClinical Medicine College, Hangzhou Normal University, Hangzhou, China.
Binbin SongFood Nutrition Sciences Centre, Zhejiang Gongshang University, Hangzhou, Zhejiang, 310018, China.
Zhaoshuo YuNational Nutrition Surveillance Centre, University College Dublin, Dublin, Ireland.
Pingfan RaoFood Nutrition Sciences Centre, Zhejiang Gongshang University, Hangzhou, Zhejiang, 310018, China.
Zhejiang Gongshang University · CNUniversity of Leeds · GBAffiliated Hospital of Hangzhou Normal University · CNAgency for Science, Technology and Research · SGUniversity College Dublin · IE

Funding

Science and Technology Department of Zhejiang Province 2022C03138
6 · The paper itself

Abstract

Food consumption can alter the biochemistry and redox status of human saliva, and the serving temperature of food may also play a role. The study aimed to explore the immediate (3 min) and delayed (30 min) effects of hot tea (57 ± 0.5 °C) ingestion and cold tea (8 ± 0.5 °C) ingestion on the salivary flow rate and salivary redox-relevant attributes. The saliva was collected from 20 healthy adults before, 3-min after and 30-min after the tea ingestion. The hot or cold deionised water at the same temperatures were used as control. The salivary flow rate and redox markers in hot tea (HBT), cold tea (CBT), hot water (HW) and cold water (CW) group were analysed and compared. The results demonstrated that neither the black tea nor the water altered the salivary flow rate; the black tea immediately increased the salivary thiol (SH) and malondialdehyde (MDA) content while reduced salivary uric acid (UA) significantly. The tea ingestion showed a tendency to elevate the ferric reducing antioxidant power (FRAP) in saliva, although not significantly. The water ingestion decreased the MDA content immediately and increased the UA level significantly. Cold water was found to induce a greater delayed increase in total salivary total protein (TPC) than the hot water. In conclusion, the black tea ingestion affects the redox attributes of human saliva acutely and significantly, while the temperature of drink makes the secondary contribution.

Identifiers

PMID38649360
PMCPMC11035607
OpenAlexW4395013041

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.