Publications by authors named "Jong Gwon Baek"

spp. has been used as a traditional folk medicine worldwide for its anti-inflammatory, hemostatic, and detoxifying properties. The well-known species var.

View Article and Find Full Text PDF

Diffuse-type gastric cancer (GC) is a type of stomach cancer that occurs in small clusters of cells that are widely spread. It does not typically manifest with symptoms until the advanced stages and often goes undetected in routine imaging tests. In addition, there is no specific targeted therapy for diffuse-type GC and it has a high mortality risk.

View Article and Find Full Text PDF

Two new ecdysteroids, spectasterone A () and spectasterone B (), together with four known ecdysteroids, breviflorasterone (), ajugalactone (), 20-hydroxyecdysone (), and polypodine B () were isolated from the Korean endemic plant using feature-based molecular networking analysis. The chemical structures of and were determined based on the interpretation of NMR and mass spectrometric data. Their absolute configurations were established using coupling constants, NOESY interactions, Mosher's method, and ECD and DP4+ calculations.

View Article and Find Full Text PDF

Actinidia polygama has been used as a traditional medicine for treating various diseases. In the present study, 13 compounds, including three new monoterpenoids (1-3), were isolated from the leaves of A. polygama to investigate the bioactive constituents of the plant.

View Article and Find Full Text PDF