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Objective:To investigate effects of depside salt from salvia miltiorrhiza(DSSM)on the dental pulp of rats under repeated exposure to +Gz acceleration.Methods:27 male SD rats were randomly divided into 9 groups(n =3).The rats in negative control group was only fixed with rats kept-keeling device,in positive control group were exposed to +5 Gz and +10 Gz respectively for 30 s each time,5 times per day,4 days per week,for 3 consecutive weeks.The rats in other groups were respectively given DSSMat 2,6 and 18 mg/kg respectively 30 min before each +Gz exposure.The rats in negative and positive control groups were injected with 0.9%sodium chloride solution 30 min prior to +Gz exposure.After the experiment,The pulp changes were observed by HE staining.Real time qPCR was applied to determine the relative expression of heat sheck protein(HSP70)mRNA.Results:+Gz exposure decreased the activity degree of the rats,and resulted in damage of rat dental pulp.With the increase of +Gz value,the relative expression of HSP70 mRNA was increased(P ＜0.05).HSP70 mRNA expression in drug groups was less than that in their own positive control groups,but showed statistical significance only in the 18 mg/kg and +10 Gz group(P ＜0.05).Conclusion:+Gz exposure may dam-age dental pulp.DSSMhas certain protective effect under +Gz exposure.
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Objective To investigate the changes of coagulation function and blood rheology in acute exacerbation of chronic obstructive pulmonary disease (AECOPD) and effects of depside salt from salvia miltiorrhiza.Methods The patients with AECOPD were randomly divided into depside salt from salvia miltiorrhiza anticoagulation group (45 patients) and conventional treatment group (45 patients).At the same time 50 normal were choosed as control group (50 patients).On the 14th day after treatment,4 indexes of coagulation,D-dimer and of blood rheology in depside salt from salvia miltiorrhiza anticoagulation group and conventional treatment group were determine and compared with those of normal control group.Results The levels of Fbg (4.6 ± 0.7) g/L and D-dimer (1.58 ± 1.13) mg/L were significantly different between depside salt from salvia miltiorrhiza anticoagulation group and normal controls.After depside salt from salvia miltiorrhiza anticoagulation,The levels of FbgFbg (3.3 ± 1.2) g/L and D-dimer (0.48 ± 0.36)mg/L were decreased significantly (P ＜ 0.01).The 1 evels of Fbg (3.3 ± 1.2) g/L and D-dimer (0.48 ± 0.36)mg/L were decreased significantly in depside salt from salvia miltiorrhiza anticoagulation group compared with those in Conventional treatment group (P ＜ 0.01).But PT,APTT and TT level were not significantly different in three groups (P ＜0.05).After treatment,hemodynamic indexes:whole blood high shearing viscosity (4.76 ± 1.35)mPa.S,low shearing viscosity (8.69 ± 2.36) mPa.S plasma viscosity (2.32 ± 0.26) mPa.S and hematocrit (40.3 ± 2.38)％ in depside salt from salvia miltiorrhiza anticoagulation group indicated significant differences compared to those in Conventional treatment group[(5.50.3 ± 1.34) mPa.S,(12.30 ± 2.30) mPa.S,(2.32 ± 0.26) mPa.S,(47.89 ± 3.13)％)] (P ＜ 0.01).Conclusion Patients with in AECOPD have hypercoagulable state.depside salt from salvia miltiorrhiza could improved hypercoagulable state in acute exacerbation of chronic obstructive pulmonary disease and decrease blood viscosity.
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Objective To observe the effect of depside salt from Salvia Miltiorrhiza on platelet endothelial nitric oxide synthase(eNOS) activity in health adults.Methods Peripheral venous blood was collected,platelets were isolated with gel-filtration chromatography and incubated with eNOS agonist histamine,eNOS inhibitor L-NAME and different concentrations of depside salt from Salvia Miltiorrhiza(0.1,1,10,100,1000 mg/L) for 30 minutes,then eNOS activity was measured as formation of 3H-L-citrulline from 3H-L-arginine.Results(1)Platelet eNOS activity was significantly inhibited after incubated platelets with L-NAME and increased after incubated with histamine(P
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Objective To study the effect of Depside Salt from Salvia Miltiorrhiza on angina pectoris and platelet function.Methods The study group was comprised of 56 patients with stable angina,who were randomly divided into the high-dosage Depside Salt from Salvia Miltiorrhiza group,the low-dosage Depside Salt from Salvia Miltiorrhiza group and the Danshen control group. Before and after the 14-day treatment,the clinical symptom and serum level of PAG, P-selectin were measured,and exercise electrocardiography was performed. Results After treatment with Depside Salt from Salvia Miltiorrhiza,the symptom of angina pectoris was alleviated and exercise ECG was improved,while no significant difference was found compared with control group.Serum PAG and P-selectin were decreased after treatment with Depside Salt from Salvia Miltiorrhiza ,and significantly more than Danshen.Conclusion Depside Salt from Salvia Miltiorrhiza injection can remarkably inhibite the aggregation and activation of platelet,and is effective for angina pectoris.