OBJECTIVE:To evaluate the environmental quality of planting bases of Artemisia argyi in Qichun county of Hubei province so as to provide scientific foundation for the construction of the planting bases of A. argyi which conforms to the require-ments of Good Agriculturing Practice (GAP). METHODS:By reference to national Ambient Air Quality Standards (GB 3095-1996),Water Quality Standards for Farm Irrigation(GB 5084-2005)and Soil Environment Quality Standards(GB 15618-1995), the ambient air,irrigation water and soil quality at 3 major producing areas of A. argyi,including Hongmenlou,Zhulinhu and Tongxin,were tested respectively. RESULTS:At the 3 major producing areas,the ambient air(including sulfur dioxide,nitrogen dioxide,total suspended particulates,fluoride,etc.)was up to primary standards in Ambient Air Quality Standards,irrigation wa-ter quality(including pH,chloride,sulfide,total arsenic,total mercury,lead,cadmium,fecal coligroup count,number of ascaris eggs,etc.)met the basic dry farming requirements in Water Quality Standards for Farm Irrigation,and soil quality(including pH, cadmium,mercury,lead,arsenic,chromium,copper,DDT,hexachlorocyclohexane,etc.) reached secondary standards in Soil Environment Quality Standards. CONCLUSIONS:The aforesaid results show that the planting bases meet GAP requirements in am-bient air,irrigation water and soil quality and are applicable producing areas of medicinal material A. argyi.

Objective To discuss the application effect of joint remifentanil propofol anesthesia on upper gastrointestinal peristalsis in the painless gastroscopy.Methods 130 patients who taken painless gastroscopy were choosed,and using the random number table method,they were divided into the observation group and control group. Propofol anesthesia was used in the control group,joint remifentanil anesthesia was used in the observation group,and the anesthetic effect were recorded.Results In the observation group group,the excellent rate of anesthesia was 93.85%,the control group was 80.00%,there was statistically significant difference between the two groups (χ2 =5.481,P <0.05).The propofol dosage in the observation group was (1.73 ±0.24)mg/kg,patients awake time was (5.91 ±1.03)min,and departure from the hospital time was (14.58 ±2.79)min,while in the control group,the propofol dosage was (3.06 ±0.57)mg/kg,patients awake time was (9.44 ±1.87)min,and departure from the hospi-tal time was (22.05 ±4.86)min,there were statistically significant difference between the two groups (t =17.337, 13.330,10.747,all P <0.05).24 cases of observation group of patients with mild 36 cases,moderate,severe in 5 cases;23 cases of control group in patients with mild and moderate 27 cases,15 cases were severe,there was statistically significant difference between the two groups (χ2 =5.376,P <0.05).Conclusion Joint remifentanil propofol used in painless gastroscopy of anesthesia is better than only propofol anesthesia,and with little impact on patients with upper gastrointestinal system,it can reduce the dosage of propofol,shorten the patient awake time and time of departure from the hospital,so it is worth popularization and application in clinic.

Objective To observe the efficacy of drug treatment of coronary aneurysm complicated with embolism in Kawasaki disease (KD). Methods The clinical data of eight KD children with coronary aneurysm and embolism were retrospectively analyzed. Results Eight KD children (six males and two females) at age of 0.25-5.2 years (mean=2.89) ,were diagnosed with gigantic coronary artery aneurysms. The diameter of aneurysm was around 8.3-13.8mm. Thrombosis appeared from 19 days to five months after coronary aneurysms formation. The onset manifestations included sudden chest pain and myocardial infarction with symptoms of heart failure in one case, shock in one case and no symptom in six cases. The maximum diameter of the thrombus was 2.8 mm×15.4 mm in the shape of funicular. Four cases had thrombus in the right coronary artery, two cases in the left coronary artery, and two cases in both sides. The patients underwent anticoagulant therapy taking heparin, urokinase, warfarin, aspirin and dipyridamole. Anticoagulant therapy was successful in 7 cases and the thrombus was completely dissolved in 7 days to more than 4 months. One case had recurrent coronary thrombosis after 4 months. One case died in 12 hours after thrombolysis. Conclusions Coronary thrombosis usually appears in the half year after the onset of KD coronary aneurysm. Thrombolysis therapy takes long time in Kawasaki patients. Breaking off of thrombus are rarely seen.

To observe the clinical efficacy and safety of bicyclol and polyene phosphatidylcholine in the treatment of liver injury induced by hyperthyroidism. Methods: Totally 112 cases of hyperthyroidism patients were randomly divided into two groups, and both groups were treated with antithyroid drug methimazole. The 56 patients in the treatment group were orally treated with bicyclol, and the other 56 patients in the control group received polyene phosphatidylcholine capsules orally. The changes of liver func-tion were compared before and after the 4-week treatment, including the level of alanine aminotransferase (ALT), aspartate amin-otransferase ( AST) , total bilirubin ( TBIL) and alkaline phosphatase ( ALP) . The efficacy and adverse reactions were also observed. Results:There was no difference in the levels of ALT, AST, TBIL and ALP in both groups before the treatment (P>0. 05), while the levels were all decreased significantly in both groups after the treatment (P<0. 05). Compared with those of the control group, ALT and AST levels of the treatment group were decreased significantly after the treatment (P<0. 05), and the total effective rate of the treatment group was higher than that of the control group with statistical significance (P <0.05), while no statistically significant difference was shown in the levels of TBIL and ALP (P>0. 05). No drug-related adverse events were shown during the treatment. Conclusion:Bicyclol is effective and reliable in the treatment of liver injury induced by hyperthyroidism, and the clinical efficacy is remarkable when compared with that of polyene phosphatidylcholine.

OBJECTIVE:To compare the contents of eucalyptol in Artemisia argyi of 5 different planting densities. METH-ODS:Gas chromatography method was performed on the column of HP-5 capillary column,and cyclohexanone was selected as in-ternal standard,the carrier gas was nitrogen at a flow rate of 0.6 ml/min,the volume temperature was 240℃,the detector tempera-ture was 250 ℃,the split ratio was 10∶1,and the injection volume was 1 μl. RESULTS:The linear range of eucalyptol was 0.420 4-1.261 2 mg/ml(r=0.999 9);RSDs of precision,stability and reproducibility tests were no more than 0.92%;average recovery was 99.6%(RSD=1.4%,n=6). CONCLUSIONS:The method is simple,rapid,accurate,reliable and reproducible,and can be used for the content determination of eucalyptol in A. argyi. The optimal planting density of A. argyi was spaced 30 cm×40 cm.

Objective To investigate the effect of blocking CD40/CD40L costimulatory pathway by the lentiviral vector-mediated RNA interference on the survival of mouse cardiac allograft. Methods Mouse bone marrow-derived dendritic cells (DCs) were infected by CD40-RNAi lentiviral vector in vitro, and tolerogenic DCs (Tol-DCs) with decreased CD40 expression were prepared. Fluorescence real-time quantitative PCR and flow cytometry were used to analyze the expression of CD40 mRNA and DC surface antigens CD40, CD11c, MHC Ⅱ before and after infection. Mouse model of heterotropic abdominal heart transplantation was established. Seven days prior to heart transplantation, Tol-DCs with decreased CD40 expression were transfused into recipient mice intravenously (lentivirus infected DC group). Control group and non-infected DC group were assigned simultaneously. The survival of cardiac allograft was monitored and pathological grade of acute rejection 7 days after heterotropic abdominal heart transplantation was determined. Results The transcription of CD40 mRNA of DCs was down-regulated significantly at 48 h after CD40-RNAi lentiviral vector infection, and the inhibition rate was 80. 9%. The expression of CD40 protein was also significantly decreased as compared with control group (40. 07% ± 4. 03% ) ( P ＜ 0. 05 ).Compared to control group (8 ± 2 days) and non-infected DC group (9 ± 1 days), the survival time of cardiac allograft in CD40-RNAi lentivirus infected DC group (14 ± 4 days) was significantly prolonged (P＜ 0. 05 ), and the pathological grade of acute rejection decreased significantly ( P ＜ 0. 05 ).Conclusion Blocking CD40/CD40L costimulatory pathway could hamper the activation of allogeneic T lymphocyte, inhibit the acute rejection and prolong the survival of mouse cardiac allograft.

Objective To construct the mouse CD40 RNA interfering(RNAi) lentiviral vector and prepare dendritic cells (DCs) with low expression of CD40. And to explore the mechanism of inducing T lymphocyte incompetence by blocking CD40/CD40L costimulatory pathway. Methods Mouse myeloid DCs were cultured in selective medium containing necessary cytokines for DC growth in vitro. CD40 RNAi gene was transfected into DCs with lentiviral vector. The expression levels of CD40 mRNA and protein were assayed by real-time quantitative PCR and flow cytometry respectively. The influences on DCs stimulating the proliferation ability of T lymphocyte were observed through mixed lymphocyte culture(MLC). Results Myeloid DCs have been harvested from mouse through cell culture in vitro. A mouse CD40 RNAi ientiviral vector was built successfully. The lentiviral titer was 8×10~9 TU/ml. The CD40 mRNA inhibition rate after infection was significantly higher(P<0.05). The CD40 protein expression of DCs was significandy lower(P<0.05). The result of MLC demonstrated that the index of stimulation to T lymphocyte of CD40 RNAi transfected DC significantly decreased compared with non-transfected DC and empty plasmid transfected DC(P< 0.01). Conclusion Large quantity of myeloid DCs with typical histological configuration are obtained through in vitro culture in selective medium which may activate naive T lymphocyte to generate immune response. While DCs were infected by CD40 RNAi lentiviral vector, CD40 protein expression was inhibited significantly. The DCs could hamper the activation of allogeneic T lymphocyte by blocking CD40/CD40L cestimulatory pathway and induce T cell allergy. This will make the good foundation for studying the immune tolerance of CD40 RNAi.

Objective To investigate the effect of Shenfu injection on ischemia reperfusion injury of rat liver graft. Methods Male SD rats were used as isogeneic orthotopic liver transplantation. Sixty rats were randomly divided into two groups(30 in each). The recipient received Shenfu injection intravenously immediately before the removal of the liver in SF group and normal saline of the same volume in control group. At 3、6 and 24h after the reperfusion blood and hepatic tissue were sampled for examination. Results The levels of superoxide dismutase (SOD) and nitric oxide (NO) in SF group significantly increased compared with those in control group(P

0.05). Conclusion Acellular nerve allograft may be a substitute to autograft repairing facial nerve defects.

Carbohydrate residues marked by five biotinylatedlectins (Con A, DBA, PHA, PNA, WGA) and carcinoembryonic antigen (CEA) in intestinal metaplasia and dysplasia adjacent to early gastric carcinoma (EGC) were studied immunohistochemically using ABC technique. The results were as following.The distribution of carbohydrate residues in intestinal metaplasia and dysplasia was different from normal gastric mucosa. The ratio of positivity for DBA and CEA was significantly higher in mucosa adjacent to gastric carcinoma than that in intestinal metaplasia in chronic gastritis and gastric resection margins. The new classification of intestinal metaplasia based on lectin binding demonstrated that the metaplasia was predominantly metaplasia of colonic (ConA + PNA-) and mixed types (ConA +PNA + ) in Carcinoma free gastric mucosa of either intestinal or diffuse carcionma. Some of the diffuse gastric carcinomas may originate from the intestinal meiaplasia.