| Description | Theaflavin 3,3'-digallate (8-Gingerol) , a major polyphenol found in black tea, is an inducer of oxidative stress which has anti-inflammatory and cancer chemopreventive actions, it reduces tumor angiogenesis by downregulating HIF-1αand VEGF. |
| In vitro | 8-Gingerol has antioxidant activity, inhibiting the formation of superoxide radicals, singlet oxygen, hydrogen peroxide, and hydroxyl radicals in vitro (IC50s = 26.7, 0.83, 0.39, and 25.07 μmol/L, respectively) [1]. |
| In vivo | In vivo, 8-Gingerol reduces serum levels of TNF-α, IL-1β, and IL-6 and decreases pulmonary edema, pulmonary congestion, and thickening of the alveolar wall in a mouse model of LPS-induced acute lung injury. It also inhibits osteoclast formation, polarization, and osteoclastic bone resorption in vitro and reduces titanium particle-induced bone erosion and the number of mature osteoclasts in mice in a dose-dependent manner [3]. |
| Synonyms | 茶黄素-3,3'-双没食子酸, 8-Gingerol, TFDG |
| molecular weight | 868.7 |
| Molecular formula | C43H32O20 |
| CAS | 30462-35-2 |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year |
| Solubility | DMSO: 10 mg/mL (11.51 mM) Ethanol: 10 mg/mL |
| References | 1. Wu YY, et al. Evaluation of the antioxidant effects of four main theaflavin derivatives through chemiluminescence and DNA damage analyses. J Zhejiang Univ Sci B. 2011 Sep;12(9):744-51. 2. Tanaka T, et al. Increase of theaflavin gallates and thearubigins by acceleration of catechin oxidation in a new fermented tea product obtained by the tea-rolling processing of loquat ( Eriobotrya japonica ) and green tea leaves. J Agric Food Chem. 2009 Jul 8;57(13):5816-22. 3. Hu X, et al. Theaflavin-3,3'-digallate represses osteoclastogenesis and prevents wear debris-induced osteolysis via suppression of ERK pathway. Acta Biomater. 2017 Jan 15;48:479-488. |