Objective To develop a HPLC quantitatively test method of glycyrrhizin, liquiritin and isoliquritigenin simultaneously for licorice. Methods The 67% methanol extracts of licorice powder were analyzed by reverse-phase HPLC on an ODS column, using a gradient elution with a mixture of 1% H3PO4 and acetonitrile. The eluate was monitored by UV absorption at 248, 276, 360 and 370 nm. Results The linear equation of glycyrrhizin was Y =1?106X +16 220, r 2=1. The linear equation of liquiritin was Y= 2?106X+49 444, r 2=0.999 5. The linear equation of isoliquritigenin was Y =1?107X +4.466 7, r 2=1. The recovery rate of glycyrrhizin, liquiritin and isoliquritigenin was 98.01%, 102.63% and 98.18% respectively. Conclusion The method is accurate, stable amd reliable, and can be used to determine the three main chemical contents simultaneously.

102 cases of Tourette's syndrome were divided into three types of the liver and kidney yin deficiency, phlegm and damp blockage and spleen and stomach deficiency.Acupuncture, auricular-plaster therapy, cupping therapy and herbal medicine were combined to treat this syndrome. As a result, 30 cases were satisfactorily effective, 61 cases were improved and 11 cases were ineffective with a total effective rate of 98.2% and no side effects were noticed during treatment.

Objective To evaluate the effect of recombinant human erythropoietin (rhEPO) combined with methylprednisolone sodium succinate (MPSS),compared to MPSS alone,in the treatment of neurological function of patients with acute spinal cord injury (SCI).Methods Twenty-one patients presenting in hospital within less than 8 hours after acute SCI were randomly divided into two groups,the control group (10 cases) and the intervention group (11 cases).The control group was treated by MPSS combined with placebo,while the intervention group received MPSS with rhEPO.Both groups received MPSS 30 mg/kg within the first hour,and if the patient was admitted within 4 hours,MPSS would be applied in the treatment with 5.4 mg/kg per hour in the subsequent 23 hours and till 47 hours if the patient was admitted within 4-8 hours after injury.The intervention group received 500 U/kg rhEPO on admission and another 500 U/kg in the next 24 hours,compared with the control group where placebo was used.The evaluation on neurologic function recovery was made on admission,24 h,72 h,one week,2 months and 6 months later,and statistical analysis was performed.Results The change in ASIA score: in the control group,the increase was seen from admission to 6 months after injury in terms of exercise,algesia and tactile sensation ((31.2±6.6) points vs.(57.8±9.8) points,(41.4±9.5) points vs.(64.3±10.6) points, (39.2±6.8) points vs,(61.5±11.3) points),the increase also took place in the intervention group ((29.5±7.2) points vs.(77.4±10.3) points,(39.7±7.2) points vs.(82.3±12.1) points,(37.4±6.2) points vs.(78.6±12.4) points).As time went on,the increase range in the intervention group became larger,compared with the control group.The difference between the two groups in ASLA score was statistically significant (P<0.05).There was no significant difference in red blood cell count and hemoglobin content of routine blood test between the two groups (P>0.05).Conclusion The application of MPSS combined with rhEPO within 8 hours after acute spinal injury may be more effective than MPSS with placebo in the neurologic dysfunction recovery.

Objective To investigate the accuracy of the new trauma scoring method:Glasgow coma score (GCS),age and systolic pressure score (GAP),in diagnosing patients' traumatic condition and predicting fatality rate in department of emergency.Methods The chnical data of 27 706 traumatic patients in department of emergency were collected.The observation was categorized into three kinds:death within 24 h after reaching department of emergency (24 h death);death from 24 h after reaching department of emergency to 7 d (death after 24 h);survival.On the basis of the trauma mechanism,GCS,age and systolic pressure score (MGAP),the GAP method was used for judging traumatic condition and predicting fatality rate of traumatic patients in department of emergency.The accuracy of GAP in predicting fatality rate was compared with revised trauma score (RTS),trauma and injury severity score (TRISS) and MGAP.The C-statistics method was used to calculate the accuracy in predicted the fatality rate.Results The C values (0.936 and 0.961) of GAP in predicting fatality rate after 24 h and in 24 h were higher than RTS (0.917 and 0.958) and MGAP (0.920 and 0.950),but slightly lower than TRISS (0.950 and 0.970).The traumatic condition in GAP was defined in this way:severity 3-10 scores,moderation 11-18 scores,and slightness 19-24 scores.Conclusions The GAP is simple,practical and accurate in diagnosing patients' traumatic condition and predicting their fatality rate.It is helpful in physicians' decision of a proper treatment plan.

Objective To analyze the haemorheological related index changes in Han population in plain who returned from plat-eau about 45 d .Methods Venous blood of Han popuktion whe returned from plateau about 45 d and who stay in plain was collected for haemorheological related index detection .Results In males of Han population who returned to plains from plateau had a re-markable rising in HCT ,erythrocyte rigidity index and the whole blood viscosity of low shear rate (P<0 .05) .In females ,all indica-tors were higher than Han population stay in plain ,but not statistically different (P>0 .05) .Conclusion In males ,the plateau re-turned to plains Han population after returned to plain about 45 d ,most indexes of blood rheology can recover to the level of the people who stay in plain .In females ,all indexes of blood rheology can recover to the level of people who stay in plain .

Objective To understand the prevalence and distribution features of mild cognitive impairment(MCI)among elderly in Xinjiang Uygur and Han ethnic groups so as to provide evidence for etiological study and prevention. Methods From July 2007 to October 2008, according to the criteria of DSM-IV for MCI,a randomized, stratified and cluster sampling procedure was used in the Uygur and Han elder people aged ≥60 years in south Xinjiang, east Xinjiang and Urumchi region. Results A total of 2986 people were surveyed, including 1519 Uygur people and 1467 Han people, and 1435 males and 1551 females. (1) According to the age composition of national census in 2000, the total crude prevalence rate of MCI was 10.21%, and the total standardized prevalence rate of MCI was 10.58% in Uygur and Han elder people. In general Uygur and Han population, the crude prevalence rates of MCI were 9.61% and 10.84%, and the standardized prevalence rates of MCI were 10.29%and 10.86%, respectively. The prevalence of MCI was higher in Han population than in Uygur population, but there was no statistical difference(χ~2 = 1.225, P>0.05). (2) In males and females, the crude prevalence rates of MCI were 9.34% and 11.03%, and the standardized prevalence rates of MCI were 9.26% and 11.62%, respectively. There was no difference in prevalence rate between different sex populations(χ~2 =2.314,P>0.05). (3) In elder people aged 60～69, 70～79 and≥80 years, the MCI prevalence rates were 6.83%, 13.22% and 22.22% in Uygur population and 8.64%, 12.50% and 19.30% in Han population, respectively, and the prevalence rate of MCI was increased with aging in the two thnic roups(χ_(for trend)~2=34.753, 14.081, both P<0.05). (4)There were statistical differences in prevalence rates of MCI among different education levels, and it was decreased with enhancement of education levels in Uygur and Han population(χ_(for trend) = 14.785, 21.059, both P<0.05). Conclusions In Xinjiang Uygur and Han ethnic elderly people, the prevalence rates of MCI are significantly different among elderly with different ages and education levels, and it is increased with aging, but is decreased with enhancement of education levels.

Objective To investigate the serum concentration of vascular endothelial growth factor (VEGF) and its soluble receptor 1 (sFlt-1) in patients with systemic lupus erythematosus (SLE) and its correlation with clinic and pathologic parameters.Methods serum levels of VEGF and sFlt-1 in a group of 60 patients with SLE and 30 healthy controls were assessed by ELISA.Results The VEGF and sFlt-1 serum levels were higher in active SLE group than the control group (P＜0.01).The VEGF/sFlt-1 ratio in the control group was lower than that in the active SLE group.inactive SLE group and LN group (P＜0.01).Particularly the ratio increased in WHO class Ⅴ LN group compared to WHO classⅡ,Ⅲ,Ⅳ LN group (P＜0.05).The semm level of sFlt-1 was correlated to proteinuria (rs=0.6244,P＜0.01) and ESR (rs=0.4235,P＜0.01) and the serum levels of VEGF and sFlt-1 were correlated to the systemic lupus erythematosus disease activation index (SLEDAI) (rs=0.5046,P＜0.01 and rs=0.5152,P＜0.01,respectively).The serum level of VEGF was correlated with renal tissue activation index (RAI) (rs=0.3386.P＜0.05) and the serum levels of VEGF and sFlt-1 were not correlated to blood pressure,serum creatine,blood ureanitmgen,C3,C4,C-reative protein.The muhi-factors stepwise regression analysis indicated that serum VEGF was positively correlated with SLEDAI (R2=0.1 75,P＜0.05),serum sFlt-1 was positively correlated with ESR and proteinurine (R2=0.497,P＜0.05).Conclusion Serum VEGF and sFlt-1 are elevated in patients with active SLE and they can reflect the activity of the disease.The overcxpression of serum VEGF might be correlated to the proliferated glomerulonephritis and the overexpression of sFlt-1 contribhtes to proteinurla.The imbalance between these two factors may act an important role in SLE pathogenesis.

Objective: To investigate the mechanisms of moxibustion in the treatment of the colonic fibrosis in ulcerative colitis (UC) by observing the colonic fibroblast (CFB) synthesizing and secreting collagen in ulcerative colitis fibrosis rats. Methods: A rat model of ulcerative colitis fibrosis was established by immunological methods using human colonic mucosa as antigen adding local stimulation. The rats were randomly divided into normal group, model group, herb-partition moxibustion group, mild-warm moxibustion group and western medicine group (SASP group). Herb-partitioned moxibustion group and mild-warm moxibustion group treated by herb-partitioned moxibustion and mild-warm moxibustion respectively on Qihai (CV 6) and Tianshu (ST 25, bilateral) points. SASP group fed with salicylazosulfapyridine. Colonic fibroblasts from all the rats were isolated and cultured and the effects of moxibustion on the colonic fibroblast synthesizing and secreting type I, III, and IV collagen were observed. Results: The supernatant of cultured CFB from UC rats could stimulate the CFB of normal rats to secrete type I, III, and IV collagens. The supernatant from rats treated by herb-partitioned moxibustion and mild-warm moxibustion inhibited the secretion of type I , III, and IV collagens of CFB in normal rats. And the western medicine group also had some inhibiting effects on the type I and HI collagens. Conclusion: Moxibustion can regulate the functions of CFB synthesizing and secreting type I, III, and IV collagens in ulcerative colitis fibrosis rats.

Objective To investigate the effect of microbubble (MB) contrast agents impacted by different parameters such as acoustic pressure, frequency, duration of exposure, and MB concentration under flowing condition. Methods A capillary flow mimic model was set up for observation and analysis of MB displacement and aggregation under stereomicroscope. Results The displacement and aggregation of ultrasonic occurred significantly at the frequency of 2.0 MHz than 1.0 MHz and 0.5 MHz. Under low acoustic pressure, MBs were not visually disrupted but the flow slowed down. The aggregation and deflection applying to MB was stronger in the tube happened at the MB concentration of 7×10~7/ml than 7×10~5/ml, but did not when the concentration rose to 7×10~9/ml because of the high viscosity. The ultrasound exposure time could not affect significantly in displacement and MB aggregation. Conclusion MB contrast agents can be manipulated under some ultrasound parameters. It is expected to be physically modulated in blood vessels, in order to increase targeted adhesions for many therapeutic purposes.

Objective To investigate the safety and clinical efficacy of recombinant human endostatin injection (endostar) continuous pumping combine with chemotherapy injection in the treatment of advanced malignancies . Methods 156 patients with advanced cancer were divided into the chemotherapy group (78 cases) and the chemotherapy combined with endostar group (78 cases). The two groups were similar in the tumor types, the neoplasm staging, the KPS and the chemotherapy agents. After two cycles chemotherapy, the efficacy was evaluated according to RECIST criteria and the quality of life (QOL) was assessed by KPS scores. Results The objective response rate (RR) of the chemotherapy combined with endostar group was 39.74%(31/78). The RR of the chemotherapy group was 17.95%(14/78). There was statistics significance in the RRs of the two groups (P<0.05). The QOL of 42 cases (53.8%) were improved, 26 cases (33.3%) were in stable and 10 cases (12.8%) were decreased in the chemotherapy combined with endostar group. The QOL were improved in 30 cases (38.5 %), stabled in 17 cases (21.8 %) and decreased in 31 cases (39.7 %) in the chemotherapy group. There were significant difference between the two groups (P< 0.05). The main adverse reactions were myelosuppression and digestive tract reaction in both groups (P>0.05), and all patients can tolerate. Conclusion The QOL of patients with advanced malignant tumors are improved by endostar combined with chemotherapy which is safe and effective. It is worthy further clinical observation.