Correlation analysis between hemostatic activity and commercial grades of Panax notoginseng / 中草药

Objective: To explore the correlation between the hemostatic activity and commercial grades of Panax notoginseng. Methods: After treatment with different commercial grades of P. notoginseng, the mice blooding time (BT) and clotting time (CT) were measured. At the same time the prothrombin time (PT), activation part thrombin time (APTT), fibrinogen (FIB), and platelet count (PLT) were also detected by fully automated blood cell analyzer. The contents of dencichine were determined by HPLC. Results: Mice BT, CT, PT, and APTT were decreased and PLT was increased significantly in all the commercial grades of P. notoginseng. Among all the commercial grades, the countless Tou Sanqi Powder has the best hemostatic activity. There is no correlation between the commercial grades and homostatic activity. Different contents of the extracted dencichine were observed among different commercial grades of P. notoginseng. The highest content of dencichine was 0.98% in countless Tou Sanqi and the lowest was 0.52% in 80 Tou Sanqi. There is no statistical correlation between the dencichine and hemostatic activity or dencichine and commercial grades of P. notoginseng. Conclusion: There is no statistical correlation between the commercial grades of P. notoginseng and haemostatic activity or dencichine contents. The dencichine in countless Tou Sanqi which is the cheapest of all displays the better hemostaic activity than those in 13 or 20 Tou Sanqi whose cost is almost as ten times as countless Tou Sanqi's.

Differences in effects of Zuojin Pills and its similar formulas on Wei cold model in rats / 中国结合医学杂志

<p><b>OBJECTIVE</b>To explore the effects of Zuojin Pills and its similar formulas on the stomach cold syndrome in a Wei cold model in rats.</p><p><b>METHODS</b>The rat Wei cold model was established by intragastric administration of glacial NaOH, and the gastric mucosa injury indices, together with the levels of motilin and gastrin in the stomach, were determined. The preventive and curative effects of Zuojin Pills and its similar formulas on gastric mucosa injury were investigated.</p><p><b>RESULTS</b>Zuojin Pills and its similar formulas could protect the gastric mucosa in the gastric cold model in rats at different levels. Fanzuojin Pills had the best effect in inhibiting gastric mucosa injury.</p><p><b>CONCLUSION</b>The different pharmacological effects of Zuojin Pills and its similar formulas in the rat gastric cold model were partially correlated with the degrees in cold and heat properties of the formulas.</p>

Effect of Radix isatidis polysaccharides on immunological function and expression of immune related cytokines in mice / 中国结合医学杂志

<p><b>OBJECTIVE</b>To investigate the effect of Radix Isatidis polysaccharides (RIP) on the immunological function and expression of immune related cytokines in mice.</p><p><b>METHODS</b>Sixty mice were randomly divided into six groups, the normal group, cyclophosphamide (Cy) model group, Levamisole (positive control) group, RIP low, medium and high dose groups (0.08 g/kg, 0.16 g/kg, 0.32 g/kg, respectively), ten in each group. By detecting the value of abdominal macrophage phagocytic index, serum hemolysin (HC50), proliferation of lymphocytes and expression of related cytokines, interleukin (IL-2) and interferon gamma (INF-gamma), the effect of RIP on immunological function and its mechanism were studied.</p><p><b>RESULTS</b>RIP could improve the level of hemolysin in immunological function depressed mice. The results showed that the value of macrophage phagocytic index in the high dose RIP group increased from 1.11+/-0.13 to 1.42+/-0.26. The level of IL-2 and INF-gamma could be decreased by Cy to 38.12+/-6.88 ng/L and 139.23+/-29.87 ng/L, respectively, while RIP in high dose could increase the secretion of IL-2 and INF-gamma to 53.54+/-14.43 ng/L and 189.91+/-32.63 ng/L, respectively.</p><p><b>CONCLUSION</b>RIP could enhance non-specific immunological function, humoral immunity and cellular immunity in mice.</p>

An experiment on standardized cell culture assay in assessing the activities of Composite Artemisia Capillaris Tablets against hepatitis B virus replication in vitro / 中国结合医学杂志

<p><b>OBJECTIVE</b>To explore the activities of Composite Artemisia Capillaris Tablet (CACT) against hepatitis B virus replication in vitro.</p><p><b>METHODS</b>By means of radioimmunoassay (RIA), Dot blot and Southern blot, the surface and e antigen production of 2.2.15 cells, HBV DNA in 2.2.15 cell culture medium and that in 2.2.15 cells were examined respectively.</p><p><b>RESULTS</b>HBsAg, HBeAg values of 2.2.15 cells treated by CACT were lower than those of the control, the HBV DNA quantities in culture medium and in 2.2.15 cells decreased as compared with those cells with no treatment by CACT given to them.</p><p><b>CONCLUSION</b>CACT could inhibit HBV DNA replication, showing its potential antiviral activity in hepatitis B treatment.</p>

Proceedings of new drug delivery systems and their applications in the traditional Chinese drugs / 中国中药杂志

By referred to a lot of data, some new drug delivery systems(DDSs) including the Sustained and Controlled DDS, the Targeted DDS, the Transdermal DDS, the Bioadhensive DDS, the PowderJect DDS and the Self-Emulsifying DDS and their applications in TCD since 2000, will be summarized and some latest DDSs in the world including drug-eluting stents, gene therapy carrier system, biological chip, biomolecular motor-powered nanodevice and nanotrap will be also introduced in this paper. The objective of this paper is to introduce the new DDSs proceedings of and their applications in the Traditional Chinese Drugs(TCDs) and to provide some references for the pharmaceutics of TCD. For several recent years, the great success have been achieved in studying the new DDS application in the change of preparation of TCD by the investigators at home, but there is a large difference between at home and at board. So it is necessary to make a greater advance. During the modernization of TCD, there is an effective way that the new drug delivery systems(DDSs) will be applied in the change of the preparation of TCD.

Antagonizing effects of novel multipeptid analogues on endothelin receptors and their pharmacological characteristics in cardiovascular system / 药学学报

<p><b>AIM</b>To investigate the antagonistic effects of the novel compounds on vasoconstriction induced by ET-1 and the effect on the blood pressure of stroke-prone spontaneously hypertensive rats.</p><p><b>METHODS</b>Organ bath experiment and whole cardiac function experiment were used.</p><p><b>RESULTS</b>The analogues of o-CPhe-D-Trp-D-Phe(-X)-OH showed good ability against endothelin biological effects. When X was displaced by 3-F, 3-Cl or 4-Cl, the novel compounds inhibit the vascular constriction induced by ET-1 in a concentration-dependent manner, the IC50 +/- L95 were (0.09 +/- 0.05), (0.15 +/- 0.06) or (0.11 +/- 0.03) mumol.L-1 respectively. The blood pressure of stroke-prone spontaneously hypertensive rats was decreased. No significant effect on cardiac function of rats was discovered.</p><p><b>CONCLUSION</b>The results demonstrate that among the six kinds of compounds, those with o-CPhe-D-Trp-D-Phe (-X)-OH configuration showed good biological effects.</p>