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| 1 | A New Cyclic Bisdesmoside from Tubers of Bolbostemma paniculatum显示文摘The structure of tubeimoside V (1), a new cyclic bisdesmoside, isolated from tubers of Bolbostemma paniculatum (Tu Bei Mu), was established by means of 2D NMR spectral and chemical methods. Compound 1 has inter-saccharide chain bridging by a dicrotalic acid to form a unique macrocyclic structure. | HaiFengTANG YangHuaYI ShuYuZHANG PengSUN LingLI DaZhengZHOU | 2005 | Chinese Chemical Letters2005，16，4： | 5 |
| 2 | Serum from rabbit orally administered cobra venom inhibits growth of implanted hepatocellular carcinoma cells in mice显示文摘AIM: To investigate the inhibitory effect of serum preparation from rabbits orally administered cobra venom (SRCV) on implanted hepatocellular carcinoma (HCC) cells in mice.METHODS: An HCC cell line, HepA, was injected into mice to prepare implanted tumors. The animals (n=30) were divided randomly into SRCV, 5-fluorouracil (5-FU), and distilled water (control) groups. From the second day after transplantation, 20 mg/kg 5-FU was administered intraperitoneally once a day for 9 days. SRCV (1 000 mg/kg)or distilled water (0.2 mL) was given by gastrogavage. Tumor growth inhibition was described by the inhibitory rate (IR).Apoptosis was detected by transmission electron microscopy (TEM), flow cytometry (FCM), and terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling (TUNEL).Student's t-test was performed for statistical analysis.RESULTS: The tumor growth was inhibited markedly by SRCV treatment compared to that in the control group (P<0.01).The treatment resulted in a significant increase in the apoptotic rate of cancer cells by the factors of 10.5±2.4 %and 20.65±3.2 % as demonstrated through TUNEL and FCM assays, respectively (P<0.01). The apoptotic cells were also identified by characteristic ultrastructural features. CONCLUSION: SRCV can inhibit the growth of implanted HepA cells in mice, and the apoptosis rate appears to elevate during the process. | PengSun Xiao-DaRen Hai-WeiZhang Xiao-HongLi Shao-HuiCai Kai-HeYe Xiao-KunLi | 2003 | World Journal of Gastroenterology2003，9，11： | 4 |
| 3 | A New Asterosaponin from the Starfish Culcita novaeguineae显示文摘A new asterosaponin named novaeguinoside A, along with a known saponin, asteronyl pentaglycoside sulfate, was isolated from the starfish Culcita novaeguineae. The new compound was identified to be sodium 6α-O-{β-D-fucopyranosyl-(1→2)-β-D-fucopyranosyl-(1→4)-[β-D- quinovopyranosyl-(1→2)]-β-D-xylopyranosyl-(1→3)-β-D-quinovopyranosyl}-5α-pregn-9(11)-en- 20-one-3β-yl-sulfate by extensive spectral analysis and chemical evidence. | HaiFengTANG YangHuaYI LingLI PengSUN DaZhengZHOU BaoShuLIU | 2005 | Chinese Chemical Letters2005，16，5： | 4 |
| 4 | A Contrastive Study of Political Speeches in Presidential Election of Interpersonal Meaning显示文摘 | Pengsun JIN Fengfeng LU | 2013 | Studies in Literature and Language2013，，3： | 1 |
| 5 | 单相真空灭弧室开断大短路电流的最佳控制方法显示文摘本文给出了单相真空灭弧室开断大短路电流的最佳控制方法。研究表明,触头分离时刻对真空灭弧室的状态有很大影响,也因此极大影响着真空灭弧室的开断能力。只要按照这种方法,借助于一台适合的弹簧操动机构控制触头分离,人们就能在开断大短路电流期间保证得到护散型电弧,就可以使触头的熔化程度降至最低。真空灭弧室的开断能力和寿命也会从根本上得到提高。 | Pengsun 蔡莉 等 | 2001 | 真空电器技术2001，，4： | 0 |
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