نتایج جستجو برای: proscillaridin a

تعداد نتایج: 13431805  

Journal: :Molecules 2013
Xin Yao Guisheng Zhou Yuping Tang Zhenhao Li Shulan Su Dawei Qian Jin-Ao Duan

A sensitive and accurate ultra-performance liquid chromatography coupled with triple quadrupole mass (UPLC-MS/MS) method was developed for the determination of quercetin-3-O-β-D-glucopyranoside-(4→1)-α-L-rhamnoside (QGR) in rat plasma using rutin as internal standard. Chromatographic separation was achieved on a Acquity BEH C18 column (100 mm × 2.1 mm, 1.7 μm) with a gradient elution of acetoni...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2001
M Popova V Bankova I Tsvetkova C Naydenski M V Silva

Two diterpene glycosides, ent-8(17)-labden-15-O-alpha-L-rhamnoside and ent-8(17)-labden-15-O-(3'-O-acetyl)-alpha-L-rhamnoside (new natural compounds) were isolated from propolis from El Salvador. The compounds showed significant antibacterial activity and moderate toxicity to Artemia salina nauplii. These are the first glycosides reported in bee glue.

2015
Kaori Okuyama-Dobashi Hirotake Kasai Tomohisa Tanaka Atsuya Yamashita Jun Yasumoto Wenjia Chen Toru Okamoto Shinya Maekawa Koichi Watashi Takaji Wakita Akihide Ryo Tetsuro Suzuki Yoshiharu Matsuura Nobuyuki Enomoto Kohji Moriishi

Sodium taurocholate cotransporting polypeptide (NTCP) has been reported as a functional receptor for hepatitis B virus (HBV) infection. However, HBV could not efficiently infect HepG2 cells expressing NTCP (NTCP-HepG2 cells) under adherent monolayer-cell conditions. In this study, NTCP was mainly detected in the basolateral membrane region, but not the apical site, of monolayer NTCP-HepG2 cells...

Journal: :The Journal of antibiotics 1979
T Hazato H Naganawa M Kumagai T Aoyagi H Umezawa

Six isoflavonoids having beta-galactosidase inhibiting activity were isolated from the culture filtrate of Streptomyces xanthophaeus. Their structures were determined by spectral analyses to be daidzein, daidzein 7-alpha-L-rhamnoside, daidzein 4',7-di-alpha-L-rhamnoside, genistein, genistein 7-alpha-L-rhamnoside and genistein 4',7-di-alpha-L-rhamnoside.

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