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Objective To investigate the applicability of zebra fish thrombosis model in antithrombotic activity screening of Chinese materia medica.Methods The living zebra fish thrombosis model was induced by adrenaline hydrochloride. Zebra fish were randomly divided into blank control group, model group, positive medicine group and medication group. Each group was given the corresponding medicine or embryo culture water. O-anisidine staining solution was used to stain and calculate the staining intensity of erythrocytes in zebra fish heart, and quantitative analysis was carried out. The platelet aggregation of transgenic zebra fish was observed and under qualitative analysis. Results Compared with the model group, 100μg/mL salvianolic acid B, 300, 900μg/mL aqueous extract of Salvia miltiorrhiza, 45μg/mL 95% ethanol extract and 400, 1200μg/mL hypothalamus could significantly inhibited the formation of zebra fish thrombosis (P<0.01).ConclusionZebra fish thrombosis model has good applicability in antithrombotic activity screening of Chinese materia medica.
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Objective To establish a zebrafish model of thrombosis induced by three kinds of inducers and observe the anti?thrombotic effect of a Chinese traditional medicine, Guanxinning tablet ( GXN) . Methods The zebrafish models of thrombosis was induced by using 1?5μmol/L phenyl hydrazine, 80μmol/L arachidonic acid and 5 mg/L ponatinib, re?spectively, and were treated with various concentration of GXN, clopidogrel or asprin. The thrombus in the tail vein was observed under microscope, Erythrocytes in the zebrafish heart were stained with o?dianisidine and the erythrocyte staining intensity was assessed with a NIS?Elements DTM image analyzer, and the anti?thrombolic effect of GXN was calculated. Results Venous thrombus was significantly increased and the staining intensities of erythrocytes in the heart were signifi?cantly decreased after induction by phenyl hydrazine, arachidonic acid or Ponatinib ( P <0?001 ) , respectively. At the same time, GXN showed an incresing anti?thrombolic effect in the zebrafish models (P<0?001) in a dose?effect manner, with a IC50 of GXN of 44?32 mg/L,138?5 mg/L and 459?5 mg/L, respectively. Conclusions The zebrafish models of thrombosis are successfully established by phenyl hydrazine, arachidonic acid or Ponatinib, respectively, by different for?mation mechanisms. GXN has been shown to have an anti?thrombosis effect, probably, by multiple target effects.
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IntroductionNowadays the risk factors for thrombosis include blood stasis, vessel wall injury, and hypercoagulability, as proposed by Virchow over 150 years ago. We chose to study affect of Zomoshin 6 tan to the model of thrombosis formed in experimental animal. It was written in books and sudar that it has action of treating some type’s disease such as blood diluting, meeting frozen blood and treating some gynecological disease.PurposeTo study affect of Zomoshin-6 tan deep vein thrombosis model formed in experimental animal.Material and Methods30 male rats of wistar bread with 180-220 gram of weight for control group, experimental group or Zomoshin-6 tan and comparative group Warfarin. Thirty rats were equally divided into 3 groups: Group 1 received saline alone, Group 2 received Zomoshin-6 (200 mg/kg), and Group 3 received Warfarin as a positive control (0.25 mg/kg), seven days prior to the assessment of thrombus formation. Thrombus formation was also assessed histopathologically. Thrombi were detected in all rats after experimentallyinduced thrombosis.ResultsHistological analysis demonstrated the presence of thrombosis in the interior vena cava (IVC) of the control group, which contained fibrin, erythrocytes, and leucocytes and obstructed the lumen. Only a small amount of fibrin clot, containing a few leucocytes and large numbers of erythrocytes, were observed in the Zomoshin-6-treated group. The thrombus formed in the IVC of Warfarin-treated animals consisted of fibrin clot, which was mostly attached to the wall, with few leucocytes but abundant erythrocytes. These findings suggest that Zomoshin-6 is an effective antithrombotic agent.Conclusion:Zomoshin-6 tan has an action of inhibing thrombosis forming of vein in experimental animal.
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OBJECTIVE:To investigate the neuropotective effect and anticoagulation effect of total Saponins of Radix Liriopes on focal cerebral ischemia in rats.METHODS:Chemical reagent Fecl3 was locally applied on the injured vessels to establish middle cerebral artery thrombosis model,and the effects of total Saponins of Radix Liriopes on rats' behavioral disturbance,brain infarct size,the histopathological changes in brain and the expression rate of nNOS immunoreactive positive neurons were measured,and the bleeding time and coagulation time were also detected with glass tube method and tail transection method.RESULTS:Due to the use of total Saponin of Radix Liriopes(10 and 40mg? kg-1),the brain infarct size was significantly decreased,the behavioral disturbance were improved and the expression rate of the nNOS immunoreactive positive neurons in rats were decreased.At doses of 20 and 60mg? kg-1,total Saponin of Radix Liriopes significantly prolonged the coagulation time and bleeding time.CONCLUSION:Total Saponin of Radix Liriopes has nuroprotective effect on focal cerebral ischemia induced by middle cerebral artery thrombosis and significant anticoagulation effect.