Sunflower ( L.) is cultivated around the world as an oil crop, and its receptacle is the byproduct and is usually deemed to be an agro-industrial waste. Then, phytochemical constituents and antifungal bioactivity of the sunflower receptacle against phytopathogenic fungi were investigated.
View Article and Find Full Text PDFSixteen new quinolizidine alkaloids (QAs), named ormosianines A-P (-), and 18 known congeners (-) were isolated from the stems and leaves of . The structures were elucidated based on spectroscopic analyses and electron circular dichroism (ECD) calculations. Structurally, ormosianines A () and B () are the first examples of cytisine and type alkaloids with the cleavage of the piperidine ring.
View Article and Find Full Text PDFThe species from Alangium have been used as folk medicine to treat rheumatism, skin diseases, diabetes by the people of Southeast Asia. Previous phytochemical studies have shown this genus are rich sources of alkaloids, glycosides, and terpenoids, which have attracted considerable attention of many researchers due to their markedly diverse and complex architecture. The crude extracts as well as the monomeric compounds from the title genus possess anti-tumor, anti-inflammatory, antibacterial, anti-oxidant pharmacological activities.
View Article and Find Full Text PDFIn the present study, a novel biodegradable Zn-0.8Cu coronary artery stent was fabricated and implanted into porcine coronary arteries for up to 24 months. Micro-CT analysis showed that the implanted stent was able to maintain structural integrity after 6 months, while its disintegration occurred after 9 months of implantation.
View Article and Find Full Text PDFAim: To prepare amylopectin anchored dipyridamole (DIP) liposome and to study its tissue distribution in mice.
Methods: The regular DIP liposomes were prepared by film-scatter method. The amphiphilic O-palmitoyl amylopectin was synthesized and added to modify the surface of liposome.