Objective To establish the quality control standards of Gehuang Huoxue Capsules. Methods TLC methods for identification of Radix Astragali and Radix Gentianae Macrophyllae were established. A simple HPLC method was established for the determination of Puerarin. Results The spots on TLC plates were clear without interference in the blank reference. The liner range of Puerarin was 0.020 79～0.665 2 mg/mL, r= 1.000 0. The average recovery of Puerarin was 100.1% and RSD=0.92%. Conclusion The method is simple, accurate, reproducible and can be used for the quality control standards of Gehuang Huoxue Capsules.

Objective To explore the value of transthoracic echocardiography(TTE) and 64-slice spiral computed tomography(CT) in the diagnosis of complex congenital heart disease(CHD). Methods Ninety-seven patients diagnosed as CHD by TTE underwent 64-slice spiral CT for cardiovascular examination. The results were compared with the results by cardiovascular angiography and from surgery. Results The total diagnosis accordance rated by TEE was 90. 2% and that by spiral CT was 92.5%. There was no difference in diagnosis accuracy rate between TTE and spiral CT. The diagnosis accuracy rate in intracardiae defomities by TTE was 99.2 %, higher than 87.50% by spiral CT. However, the diagnosis accuracy rate in extracardiac defomities and ventricular-arterial connections was 99. 0% by spiral CT, higher than 78. 6% by TTE. The combination of TTE and spiral CT can raise the diagnosis accuracy rate to 99. 1%. Conclusions TTE is of significant value in complex CHD diagnosis,especially in the diagnosis of intracardiac defomities. The combination of TTE and spiral CT can raise the diagnosis accuracy rate of various kinds of complex CHD.

Objective To study the influence of different dialysis frequence on infection and prognosis of maintenance hemedialysis patients. Methods Fifty-three maintenance hemodialysis patients with chronic kidney disease were divided into 3 groups. Groups A, B, C dialysed thrice per week (19 cases),twice per week (15 cases) and thrice per two weeks (19 cases), respectively. All the patients were dialysed for 1 year. The rate of infection, death number and death reason were recorded. Results All the cases were infected 62 times (17 times in group A, 18 times in group B and 27 times in group C). Pulmonary infection,blood vessels infection, urinary tract infection and digestive tract infection happened 35 times(56.45% ), 14 times (22.58%), 8 times (12.90%) and 5 times (8.06%) respectively. Eight cases died in three groups,and the total death rate was 15.09%, with 1 case in group A,1 case in group B and 6 cases in group C.There was significant difference in prognosis among three groups (χ2 =6.293,P <0.05). Conclusions Patients who dialysis less than twice per week have higher rate of infection and death. Dialysis program should be adjusted and dialysis frequence should be increased.

Objective To explore the effect of ILK on myocardium contraction following hemorrhagic shock .Methods With iso-lated cardiac papillary muscle and isolated heart ,the contraction of papillary muscle and hemodynamic parameters (left intraventricu-lar systolic pressure(LVSP) ,the maximal change rate of left intraventricular pressure were measured .Results Compared with nor-mal control hearts ,ILK activity ,contractile response of cardiac papillary muscle and hemodynamic parameter were decreased signifi-cantly gradually in shock heart at the 1 ,2 h(P<0 .05) ,and the change of ILK activity was positive correlative with contractile re-sponse and hemodynamic parametert .With ILK agonist [phosphatidylinositol(3 ,4 ,5)trisphosphate ,PLTP] the dysfunction of con-tractile response and hemodynamic parameter could be improved significantly (P<0 .05) ,while these improvement could be abol-ished by ILK specific inhibitor(P<0 .05) .Conclusion ILK play important role in the regulation of cardiac contractility following hemorrhagic shock .

AIM: To explore the correlativity of the oil/water partition of hydroxycamptothecin and its absorp-tion coefficiency in small intestine in rats.METHODS: pH value of water phase in buffer solution in turn took 2.2,4.6,7.4,9.6 and 11,while octanol was adopted as oil phase.After phase equilibrium,HPLC was used to determine the concentration of hydro-xycamptothecin,and oil/water partition coefficient was calculated with the phenol red as volume calibration agent,small intestinal absorption coefficients of rats in different pH were plotted against its oil/water partition coefficients.RESULTS: Oil/water partition coefficient(x) of hydroxycamptothecin and small intestinal absorption(y) altered with the change of pH value of the dispension medium.The linear re-gress equation was constructed as y = 0.001 3x + 0.009 1 with its correlation coefficient R2 being 0.959 7.CONCLUSION: There exists a good linear dependence between oil/water partition coefficient of hydroxycamptoth-ecin and its absorption coefficient in small intestines of rats.Oil/water partition coefficient can be used to design the new oral preparations.

Objective To report the clinical results of the treatment of subtrochanteric fractures of the femur with reconstruction intramedullary nails. Methods 51 cases of femoral subtrochanteric fractures were treated with reconstruction intramedullary nails in our department in the period from January 1997 to June 2003. Among them 9 cases belonged to Russell Taylor type ⅠA, 26 ⅠB, 2 ⅡA, and 14 ⅡB. 34 patients sustained high energy injury, and 17 low energy one. 17 cases had some complicated injuries. 5 cases were open fractures. Results The mean follow up of 18.5 (3 36) months revealed that fractures healed in all the 51 cases. The clinical healing time of the fracture averaged 13.5 (8 26) weeks after surgery. The functional evaluation was done by Sanders traumatic hip rating scale. The good and excellent rate was 94.11%(48/51). Three elderly patients experienced hip pain after surgery. There were no infection,varus deformity and implant breakage. Conclusion The Russell Taylor reconstruction intramedullary nail can be used to treat all kinds of femoral subtrochanteric factures with good results, high union rate and rare complications.

Objective:To establish a pristine-induced rheumatoid arthritis model in mice,and to evaluate its histological and immunological distinction.Methods:Thirty female BALB/c mice,6-8 weeks old,were randomly divided into 2 groups,a control group and pristine group.The mice in pristine group were injected intraperitoneally with 0.5 ml pristine three times at 0,9,and 18 weeks, while mice in the control group receiving saline at the same time.Arthritis score and paw thickness were measured and histopathological assessment of joint sections was performed.The expression of phagocytes,dendritic,neutrophils,T and B cells markers in spleen were determined by flow cytometry.Results:In model-marking group,11 mice were presented with macroscopic evidence of arthritis such as erythema or swelling.The paw thickness in pristine-induced mice was significant higher than that in the control groups[(2.90±0.51) mm vs(1.29±0.47 mm),P<0.05].In addition,arthritis score in pristine-induced mice was 9.55±2.80 at 21 weeks after first injection with 0.5 ml pristine.H&E staining revealed a significant increase of synovial inflammation, cartilage and bone destruction after stimulated with pristine.Meanwhile,the expression levels of CD11b,CD11c,GR1,CD4,CD8 and CD154 were obviously increased in model-marking group when compared with that in control group.Conclusion: The pristine-induced model presents the similar histological and immunological distinctions with human rheumatism arthritis,which can mimic the pathogenesis of rheumatism arthritis.

Background:With the emergence of bacterial resistance,the efficacy of Helicobacter pylori(Hp)eradication therapy is decreasing in recent years. After the previous failed course of eradication therapy,the possibility of failure of re-eradication therapy is greater. Therefore,choosing the rescue therapy for Hp re-eradication is particularly important. Aims:To investigate the efficacy of levofloxacin-based triple therapy combined with probiotics as a rescue therapy for Hp re-eradication. Methods:A total of 192 patients with a previous failed course of standard triple therapy for Hp eradication were enrolled and randomly assigned into four groups. Group A:lansoprazole 30 mg + amoxicillin 1 000 mg + levofloxacin 200 mg bid for 14 days;group B:regimen of group A with the addition of bismuth potassium citrate 600 mg bid for 14 days;group C:bifidobacterium and lactobacillus triple live bacteria 2 000 mg tid for 14 days followed by regimen of group A for 14 days;group D:regimen of group A with the addition of bifidobacterium and lactobacillus triple live bacteria 2 000 mg tid for 14 days. At 4 weeks after end of treatment,Hp eradication was assessed by 13 C-urea breath test. Adverse effects during the course of treatment were recorded. Results:A total of 177(92. 2% )patients completed the study,the completion rates in group A,B,C and D were 87. 5%(42 / 48),83. 3%(40 / 48),97. 9%(47 / 48)and 100% , respectively;the completion rates in group C and D were significantly higher than those in group A and B(P < 0. 05). By intention-to-treat(ITT)analysis,the eradication rates of group A,B,C and D were 60. 4% ,68. 8% ,81. 3% and 83. 3% ,respectively;the eradication rates in group C and D were significantly higher than that in group A(χ2 = 5. 042, P = 0. 045;χ2 = 6. 235,P = 0. 013). By per-protocol(PP)analysis,the eradication rates of group A,B,C and D were 69. 0% ,82. 5% ,83. 0% and 83. 3% ,respectively;no statistically significant differences were found among the four groups(P > 0. 05). Adverse effects included constipation,taste distortion,bloating and anorexia,the incidences of adverse effects in group A,B,C and D were 79. 2% ,95. 8% ,29. 2% and 22. 9% ,respectively;the incidences in group C and D were significantly lower than those in group A and B(P < 0. 05). Conclusions:Levofloxacin-based triple therapy combined with bifidobacterium and lactobacillus triple live bacteria can decrease the adverse effects of traditional triple and quadruple therapies and improve the patient compliance,thus increases the efficacy of rescue therapy for Hp re-eradication.

Objective To explore the effects of levodopa and benserazide on upper extremity function after stroke. Methods 90 cases of sub-acute stroke patients were randomly divided into rehabilitation group (n=30), treatment group (n=30) and control group (n=30). The first 2 groups were treated with conventional movement therapy. The treatment group was treated with levodopa and benserazide tablet in addition.All patients were assessed with Fugl-Meyer assessment (FMA) and Motor Assessment Scale (MAS) before and 8 weeks after treatment.Results Before treatment, there was no significant difference in the scores of FMA and MAS among 3 groups (P>0.05). After 8 weeks treatment, the scores of FMA and MAS increased in the rehabilitation group and treatment group (P<0.05), the score was higher in the treatment group than in the rehabilitation group (P<0.05). Conclusion Levodopa and benserazide can further improve the functional performance of the upper extremities of stroke patients.

Objective:On the basis of the use of chemical methods to establish mouse model of lupus nephritis and its biological identification , we investigate the reverse effect of pathological lesions of B 7-1 human-mouse chimeric antibody blockade against B7/D28 signaling pathway in mice with lupus nephritis model.Methods:Pristane was injected intraperitoneally to 6-week-old female C57BL/6J mice at dose of 0.5 ml per mouse in one go,and urine protein,ANA and renal pathological changes were detected on a monthly basis.Mice whose urine protein content reached ++and ANA fluorescence intensity reached ++were randomly devided into three groups ,five each.Antibody intervention group was sequentially injected with B 7-1-mouse chimeric antibody by orbital venous , positive control group was injected with immunosuppressant CTX , negative control group was injected with isotype control IgG.Urine protein and ANA were also detected on a monthly basis.Mice were sacrificed three months after intervention was executed.Kidney was used for H&E dying , IC detection and electric microscope observation.Results: After four-month Pristane induction , urine protein content of 80%mice reached +-+++,meanwhile,serum ANA fluorescence intensity reached ++-+++.Glomerulonephritis infiltrating cells were observed Mice with urine protein and ANA , glomerular inflammatory cell infiltration , tubular epithelial cell degeneration visible edema ,vascular congestion significantly ,fibrosis.After antibody intervention ,urine protein content in antibody intervention group gradually reduced from ++-+++to ±-+++,ANA ++-+++to +-++,and were significantly different from that in the negative control group ( P<0.01 ).Analysis of kidney H&E dying showed that antibody glomerular infiltration of inflammatory cells in the intervention group and tubular congestion and other symptoms were improved significantly.Immunofluorescence staining indicated that fluorescence intensity of IC was significantly reduced in the antibody intervention group.Electron dense deposits reduction and glomerular basement membrane uniformity were observed in antibody intervention group by electric microscope when compared with the negative control group.Conclusion:B7-1 antibodies could downregulate immune response through inhibiting B 7-1/CD28 signaling pathway , reducing the production of autoantibodies and reversing pathological damage caused by autoimmune response .