Yan-jiao Li

Learn More
Phytochemical investigation of the 70% EtOH extract of the rhizome of Anemone amurensis led to the isolation of two new oleanane-type triterpenoid saponins 1 and 2. Their structures were elucidated on the basis of chemical and spectral analysis, including 1D, 2D NMR data, and HR-ESI-MS. Compounds 1 and 2 were tested for cytotoxicities against two human(More)
Herbal medicines usually contain a large group of chemical components, which may be transformed into more complex metabolites in vivo. In this study, we proposed a knowledge-transmitting strategy for metabolites identification of compound formulas. Gegen-Qinlian Decoction (GQD) is a classical formula in traditional Chinese medicine (TCM). It is widely used(More)
Herbal medicines contain a large number of minor constituents, which could contribute to their therapeutic effects and provide valuable lead compounds for drug discovery. However, to explore minor constituents from complicated herbal extracts is usually laborious and time-consuming. In order to discover minor novel herbal constituents efficiently, we(More)
ETHNOPHARMACOLOGICAL RELEVANCE TongMai Keli (TM) is a widely used traditional Chinese medicine preparation for the treatment of cardiovascular and cerebrovascular diseases. It is composed of Puerariae Lobatae Radix (roots of Pueraria lobata (Willd.) Ohwi), Salviae Miltiorrhizae Radix (roots of Salvia miltiorrhiza Bge.), and Chuanxiong Rhizoma (rhizomes of(More)
Women over 35 have higher rates of infertility, largely due to deterioration of oocyte quality characterized by fragmentation, abnormal meiotic spindle-chromosome complexes, and oxidative stress. C-phycocyanin (PC) is a biliprotein enriched in Spirulina platensis that is known to possess antioxidant, anti-inflammatory, and radical-scavenging properties.(More)
Cumulus cells are a group of closely associated granulosa cells that surround and nourish oocytes. Previous studies have shown that cumulus cells contribute to oocyte maturation and fertilization through gap junction communication. However, it is not known how this gap junction signaling affects in vivo versus in vitro maturation of oocytes, and their(More)
The method of vitrification has been widely used for cryopreservation. However, the effectiveness of this method for mammalian oocytes could be improved by optimizing each step of the process. In the present study, we tested the effects of varying several key parameters to determine the most effective protocol for mouse oocyte vitrification. We found that(More)
In this study, we report the complete mitochondrial genome sequence of David's myotis, Myotis davidii. The genome is found to be 17,531 bp in length and has a base composition of A (33.8%), G (13.2%), C (23.2%), and T (29.8%). Similar to other bats, it contains a typically conserved structure including 13 protein-coding genes, 22 transfer RNA genes, 2(More)
In this study, we report the complete mitochondrial genome sequence of brandt's bat, Myotis brandtii. The genome is found to be 17,470 bp in length and has a base composition of A (33.1%), G (13.6%), C (24.6%), and T (28.6%). Similar to other bats, it contains a typically conserved structure including 13 protein-coding genes, 22 transfer RNA genes, 2(More)
  • 1