Black and Green Tea as Well as Specialty Teas Increase Osteoblast Mineralization with Varying Effectiveness.
antioxidant
bone
mineral
osteoblast
polyphenol
tea
Journal
Journal of medicinal food
ISSN: 1557-7600
Titre abrégé: J Med Food
Pays: United States
ID NLM: 9812512
Informations de publication
Date de publication:
Aug 2021
Aug 2021
Historique:
pubmed:
1
12
2020
medline:
21
8
2021
entrez:
30
11
2020
Statut:
ppublish
Résumé
Many human studies suggest a benefit of tea consumption on bone health. The study objective was to compare the ability of different tea types to promote mineralization. Saos-2 cells underwent mineralization (5 days) in the presence of tea (white: WT, green: GT, black: BT, green rooibos: GR, or red rooibos: RR; 1 μg/mL of polyphenols) or control. Total polyphenol content (TPC, Folin-Ciocalteu's reagent), antioxidant capacity (2,2-diphenyl-1-picrylhydrazyl [DPPH] scavenging), mineralization (Alizarin Red staining), gene expression quantitative reverse transcription PCR (RT-qPCR), and cell activity (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide assay) were determined. TPC was highest in GT and BT. The ability of each tea to inhibit DPPH also differed (WT, GT > RR) after normalizing for polyphenol quantity. Each tea increased mineralization and differences were observed among types (GT/BT/GR/RR > WT, GT = BT = GR, RR > BT/GT). mRNA expression of alkaline phosphatase (
Identifiants
pubmed: 33252307
doi: 10.1089/jmf.2020.0139
pmc: PMC8403192
doi:
Substances chimiques
Antioxidants
0
Polyphenols
0
Tea
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
866-872Références
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