ArticleMolecules (Basel, Switzerland)2019
Protective Effects of Kuding Tea (
Article in Molecules (Basel, Switzerland), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled 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.
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.
Who cites it
24 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.
- Plant-Derived Food Grade Substances (PDFGS) Active Against Respiratory Viruses: A Systematic Review of Non-clinical Studies.Frontiers in nutrition · 2021Pooled it
- Human adipose-derived stem cell exosomes reduce mitochondrial DNA common deletion through PINK1/Parkin-mediated mitophagy to improve skin photoaging.Stem cell research & therapy · 2025Article
- Research on the mechanisms of plant bioactive metabolites in anti-skin aging and future development prospects.Frontiers in pharmacology · 2025Review
- The Applications of Plant Polyphenols: Implications for the Development and Biotechnological Utilization ofPlants (Basel, Switzerland) · 2024Review
- Protective Effect of Red Light-Emitting Diode against UV-B Radiation-Induced Skin Damage in SKH:HR-2 Hairless Mice.Current issues in molecular biology · 2024Article
- Human Serum Albumin/Selenium Complex Nanoparticles Protect the Skin from Photoaging Injury.International journal of nanomedicine · 2024Article
- Molecular Mechanisms of Polyphenols in Management of Skin Aging.Current aging science · 2024Review
- Bazi Bushen alleviates skin senescence by orchestrating skin homeostasis in SAMP6 mice.Journal of cellular and molecular medicine · 2023Article
- Protective effect ofFrontiers in pharmacology · 2023Article
- Explore the multitarget mechanism of tetrahydrocurcumin preventing on UV-induced photoaging mouse skin.Heliyon · 2022Article
- Inhibition of temperature-sensitive TRPV3 channel by two natural isochlorogenic acid isomers for alleviation of dermatitis and chronic pruritus.Acta pharmaceutica Sinica. B · 2022Article
- Article
- The Protective Effect of Carotenoids, Polyphenols, and Estradiol on Dermal Fibroblasts under Oxidative Stress.Antioxidants (Basel, Switzerland) · 2021Article
- Oleogel Formulations for the Topical Delivery of Betulin and Lupeol in Skin Injuries-Preparation, Physicochemical Characterization, and Pharmaco-Toxicological Evaluation.Molecules (Basel, Switzerland) · 2021Article
- Effect of Different Wavelengths of Laser Irradiation on the Skin Cells.International journal of molecular sciences · 2021Review
- β-Nicotinamide Mononucleotide (NMN) Administrated by Intraperitoneal Injection Mediates Protection Against UVB-Induced Skin Damage in Mice.Journal of inflammation research · 2021Article
- Effect ofPeerJ · 2021Article
- New Lead Discovery of Herbicide Safener for Metolachlor Based on a Scaffold-Hopping Strategy.Molecules (Basel, Switzerland) · 2020Article
- Chemical Composition, Bioactivity and Safety Aspects of Kuding Tea-From Beverage to Herbal Extract.Nutrients · 2020Review
- Effect of lemon peel flavonoids on UVB-induced skin damage in mice.RSC advances · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In this study, the protective effects of Kuding tea polyphenols (KTPs) on ultraviolet B (UVB)-induced skin injury of SKH1 hairless mice were studied. The ion precipitation method was used for extraction of polyphenols from Kuding tea. High-performance liquid chromatography showed that KTPs contains chlorogenic acid, cryptochlorogenic acid, isochlorogenic acid B, isochlorogenic acid A, and isochlorogenic acid C. SKH1 hairless mice were induced skin aging using 2.0 mW/s intensity of 90 mJ/cm² UV light once a day for seven weeks. The 2.5% and 5% KTPs solution was smeared on 2 cm² of back skin of skin aging mice twice a day. Mouse experiments showed that KTP strongly increased the serum levels of total superoxide dismutase (T-SOD) and catalase (CAT) and reduced those of malondialdehyde, interleukin 6 (IL-6), IL-1β, and tumor necrosis factor alpha (TNF-α) in mice with UVB-induced skin damage. KTP also increased the levels of type 1 collagen (Col I), hydroxyproline, and hyaluronic acid and reduced those of Col III and hydrogen peroxide in the damaged skin tissues of mice. Pathological observations of tissues stained with H & E, Masson's trichrome, Verhoeff, and toluidine blue showed that KTPs could protect skin cells, collagen, and elastin and decrease the number of mast cells, thus inhibiting skin damage. Quantitative PCR and western blot assays showed that KTP upregulated the mRNA and protein expression of tissue inhibitor of metalloproteinase 1 (TIMP-1), TIMP-2, copper/zinc-SOD, manganese-SOD, CAT, and glutathione peroxidase and downregulated the expression of matrix metalloproteinase 2 (MMP-2) and MMP-9. In addition, the same concentration of KTP had stronger protective effects than vitamin C. The results of this study demonstrate that KTPs have good skin protective effects, as they are able to inhibit UVB-induced skin damage.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.