Norathyriol (Mangiferitin) is a natural metabolite of Mangifera. Norathyriol inhibits α-glucosidase in a noncompetitive manner with an IC50 of 3.12 μM[1]. Norathyriol inhibits PPARα, PPARβ, and PPARγ with IC50s of 92.8 µM, 102.4 µM, and 153.5 µM, respectively[2]. Antioxidant, anticancer, antimicrobial, anti-inflammatory, anti-bacterial activities.
Norathyriol (1-25 µM) inhibits growth by inducing cell cycle arrest in JB6 P+ cells. Norathyriol inhibits JB6 cell growth by inducing G2-M arrest[3].
Norathyriol suppresses UVB-induced phosphorylation of ERKs, AP-1 and NF-κB activation in JB6 P+ cells[3]Cell Growth Assay WB
Cell Viability Assay[3]
| Cell Line: | Mouse skin epidermal JB6 P+ cells |
| Concentration: | 0, 1, 10, or 25 µM |
| Incubation Time: | 24 or 72 hours |
| Result: | Inhibited cell growth in a dose- as well as time-dependent manner but does not cause cell death. |
Western Blot Analysis[3]
| Cell Line: | JB6 P+ cells |
| Concentration: | 0, 1, 10, or 25 µM |
| Incubation Time: | 2 hours |
| Result: | Inhibited UVB-induced phosphorylation of ERKs and p90RSK. |
Norathyriol is a natural metabolite of Mangifera in the human intestine with the oral availability and safety[1].
Norathyriol (0.92, 1.85 and 3.7 mg/kg) dose dependently decreased the serum urate levels by 27.0, 33.6 and 37.4%, respectively[4].
| Animal Model: | Adult Kunming mice weighing 18-22 g[4] |
| Dosage: | 0.92, 1.85 and 3.7 mg/kg |
| Administration: | Administered intragastrically; twice daily for five times |
| Result: | The serum uric acid levels were decreased by 27.0%, 33.6% and 37.4%. |
[1]. Zhi-Long Shi, et al. In Vitro and In Vivo Effects of Norathyriol and Mangiferin on α-Glucosidase. Biochem Res Int. 2017;2017:1206015.
[2]. Ashley S Wilkinson,et al. Effects of the mango components mangiferin and quercetin and the putative mangiferin metabolite norathyriol on the transactivation of peroxisome proliferator-activated receptor isoforms. J Agric Food Chem. 2008 May 14;56(9):3037-
[3]. Jixia Li, et al. Norathyriol suppresses skin cancers induced by solar ultraviolet radiation by targeting ERK kinases. Cancer Res. 2012 Jan 1;72(1):260-70.
[4]. Yanfen Niu, et al. Hypouricaemic action of mangiferin results from metabolite norathyriol via inhibiting xanthine oxidase activity. Pharm Biol. 2016 Sep;54(9):1680-6.