Photo by abeosorio from unsplash
Five new oleanane-type saponins 1–5 together with a known saponin 6 and a steroidal glycoside 7 were isolated from Polaskia chichipe Backbg., and their structures were determined from their 1D… Click to show full abstract
Five new oleanane-type saponins 1–5 together with a known saponin 6 and a steroidal glycoside 7 were isolated from Polaskia chichipe Backbg., and their structures were determined from their 1D and 2D NMR and HRFABMS spectral data. The six isolated saponins 1–6 were tested for their effects on the melanogenesis of B16 melanoma 4A5 cells. Compound 1 exerted an inhibitory effect at 100 μM whereas compound 3 promoted melanogenesis at the same concentration, even though these two compounds contain the same aglycon structure. The dose-dependent activities of compounds 1 and 3 on melanin synthesis were investigated.
Journal Title: Journal of Natural Medicines
Year Published: 2017
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!