Objective To study the effects of monosodium glutamate on viability and fertility of filial generation Drosophila.Methods Different concentrations(15,30,45 g/L)of L,H,T monosodium glutamate(MSG)were added in the medium for wildtype Drosophila melanogaster,and the non-MSG medium was taken as the control group,3 pairs of Drosophilas in each bottle and 3 repeats in each group,the first and second filial generation adult Drosophila's eclosion time(growth period) and the number of offspring within 7 days(reproduction quantity),and the death count in 30 days of 20 Drosophilas were observed and recorded.Results Compared with the control group,the reproduction quantity of Drosophila significantly increased,the growth period shortened in the first filial generation in 15 g/L of T MSG group.As the MSG concentrations increased,the reproduction quantity reduced significantly,the survival rate of Drosophila in 30 days declined significantly.The reproduction quantity in second filial generation increased at the initial stage of exposure and then decreased as the MSG concentrations increased.Conclusion The results of the present paper indicates that low-dose of MSG may be the advantage for survival and reproduction of Drosophila,but high doses will produce adverse effects.

Objective:To investigate the variation of the drug resistance of Escherichia coli(Eco)against antibacterial in clinical specimens in the hospital, and to evaluate the simultaneous use of antibacterial, to explore to provide the reference for the reasonable clinical use of antibacterial. Method:Eco was separated from all kinds of clinical specimens of out-patients and in-patients in the hospital from August of 2005 to April of 2006,and ESBLs was detected with Kirby-Bauer (K-B) disk diffusion method. It was also counted that the antibacterial drugs ranked the first 30 in sales per month and their use frequencies in the same period in the hospital. Result:The detectable rate of producing ESBLs Eco was 58.6%. Eco was completely sensitive to imipenem. It had lower resistance rates, only 2% and 4% , against piperacillin/tazobactam and cefoperazone/sulbactam; and had 59% and 55% resistance rates respectively against cefotaxime claforan and ceftazidime pentahydrate in the third generation cephalosporin. The third generation cephalosporin and quinolones kept high in sales and their use frequencies ranked the first three. The use of the third generation cephalosporin with anhydrase inhibitors also had an uptrend. Conclusion:There is a direct relation between the use of a great deal of antibacterial and the imitative drug resistance of Eco. It is necessary to strengthen its clinical management and to raise the level of drug use.

BACKGROUND:Many experiments have demonstrated that tissue engineering scaffolds prepared by polymer materials alone or biomaterials cannot meet the requirement of tissue engineering research.
OBJECTIVE:To evaluate biological characteristics and cel affinity of poly(hydroxybutyrate-co-hydroxyoctanoate)/col agen composite scaffold.
METHODS:Tissue engineering scaffolds were prepared by combination of poly(hydroxybutyrate-co-hydroxyoctanoate) and col agen at different proportions (2%, 4%, 6%, 8%and 10%) using solvent casting/particulate leaching method. Inner structure and apertures were observed by scanning electron microscope, and the porosity was determined by liquid displacement method. Rabbit chondrocytes were co-cultured with poly(hydroxybutyrate-co-hydroxyoctanoate)/col agen composite scaffold and poly(hydroxybutyrate-co-hydroxyoctanoate) scaffold. Growth curve of cel s was determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, and cel adhesion on the scaffolds was observed by scanning electron microscope.
RESULTS AND CONCLUSION:The pore size and porosity of the composite scaffold were about 200μm and (85±2)%, respectively. The cel affinity dynamical y increased with the increasing of proportion of col agen. Compared with the poly(hydroxybutyrate-co-hydroxyoctanoate) scaffold, the poly(hydroxybutyrate-co-hydroxyoctanoate)/col agen composite scaffolds are better to improve cel adhesion and proliferation, with favorable cel ular affinity.

OBJECTIVE: To observe the anti-inflammatory and analgesic effects of Yitieling Paste (YTLP). METHODS: YTLP and aspirin (as a control drug) were introduced to treat the edematous ears of mice induced by xylene and swollen toes of mice induced by carrageenin, and to relieve the pain in mice induced by heat and acetic acid. The swelling degree, pain threshold and body distortions were measured. RESULTS: The repression rates of the ear edema in groups of YTLP of high and low dosages and the aspirin group were 67.92%, 52.52% and 58.28%, respectively. The repression rate of the toe swelling in YTLP high dosage group was higher than that of the aspirin group, which was higher than that of the YTLP low dosage group. The results of analgesic effect of the three YTLP-treated groups showed that with the increase of dosage, the pain thresholds were higher and higher, and the body distortions were lower and lower. The pain thresholds of high and medium dosage YTLP groups were near to the aspirin group. CONCLUSION: YTLP possesses a strong anti-inflammatory and analgesic effect.

Objective To discuss the clinic efficiency and value of intravascular infusion and PTA for treatment of acute and chronic arterial occlusion.Methods 37 patients,23 males and 14 females,aged 23～81 years,mean 52.9 years,underwent Seldinger techniqe.Percutaneous puncture femoral artery anterograde or retrocatheterism with pulsed-spray or injection thrombolysis.The concentration of urokinase was 10000 u/ml,total 300～800 thousands u,mean 550 thousands u.17 patients with chronic arterial occlusion were theated with PTA.Results The rate of success all patients with interventional therapy was 95 percent(35/37).The rate of success with acute arterial occlusion was 91 percent(21/23).In 23 cases,18 were obtained thrombolysis completely(78 percent )and thrombolysis partly were 3(13 percent )and unaffected were2(9 percent).In chronic patients thrombolysis partly was 93 percent.The rate of success with PTA was 100 percent(14/14).Conclusion The thrombolysis therapy is a first selection therapy for acute and chronic arterial occlusion and is a accessory treatment for PTA.

Objective To discuss the value of emergency angiography and embolization treatment of hemorrhage of digestive tract.Methods Give emergency angiography and embolization treatment for 15 patients with hemorrhage of digestive tract.Male is 12.Famale is 3.Adopt to Seldinger technic and method of coaxial duct,the head of ducts accesses to the region of bleeding,with gelatin foam or suture to embolism.Results All 15 patients were sucessful embolismed and get objective of hemostasis.Angiography appeared contrast medium overflowing and the humens,mucosa development.All patients were not bleeding again.Conclusion Clinic efficiency of emergeney ;embolization treatment for hemorrhage of digestive tract is assurance and explanation the principle and events of attention.

Objective To evaluate the long-term results of balloon dilatation for benign esophageal stricture and stent implantation for malignant esophageal stricture.Methods Balloon dilatation and stent implantation were performed in 156 cases,of which 12 cases received balloon dilatation in benign esophageal stricture and 134 cases received metallic stents,9 cases received balloon dilatation in malignant esophageal stricture of 143 cases.Results During a follow-up period of 1～48 months,61 cases died with a mean survival period of 8.9 months(1～33 months).Recurrent stenosis occurred in 63 cases(47%)who had to receive ballon dilatation or another stent implantation procedure,the stent was obstructed due to food and mucus in 3 cases,stricture at the upper end in 19 cases and the both ends in 8 cases.Conclusion Stent implantation is an effective palliative treatment for esophageal carcinoma with severe dysphagia.Tumor and hamartoplasia are the main cause of recurrent stricture.Covered stents can reduce the rate of recurrent stricture.

Objective To explore the value of tubercular antibody (TBAb) in the diagnosis of tuberculous pericarditis (TBP).Methods The TBAb in 38 patients were determined by colloidal gold (CG) and compared with 64 healthy control. Results The positive ratio in TBP group was significantly higher as compared with control group. The hydropericardium was significantly decreased or disappeared after 6 months of antituberculotic treatment by color Doppler ultrasonography. It seemed that patients were rehabilitated and electrocardiogram (ECG) was normal. Conclusion TBAb is valuable in the diagnosis,differential diagnosis or treatment of TBP.

Objective To assess dietary glycemic load (GL) in young adult males with acne vulgaris and to evaluate its association with severity of skin lesions,in hope to provide evidences for comprehensive treatment of acne vulgaris.Methods The Global Acne Grading System (GAGS) was used to evaluate the severity of acne,and food frequency questionnaire (FFQ) and 24-hour dietary recall (24-HDR) to assess GL.Differences in GL and body mass index (BMI) were assessed by t test and analysis of variance,and Logistic regression analysis was conducted to analyze the factors influencing BMI and GL.Results This study included 99 young adult males with acne vulgaris who were 19-24 years old.Logistic regression analysis revealed that GL was the risk factor of BMI,and higher GL was always associated with increased BMI (β3 =1.119,P ＜ 0.05,OR =3.062,95％ confidence intervals:1.044-8.986).No factors were found to have influences on GL.The patients with a disease duration of ＞ 6 months showed a higher GL (t =2.947,P ＜ 0.01),but similar BMI (t =0.798,P ＞0.05) compared with those with a disease duration of ≤6 months.Significant differences were observed in GL (F =76.296,P ＜ 0.01),but not in BMI (F =3.142,P ＞ 0.05),among the three groups of patients with different GAGS score.GL was higher in patients with GAGS score of ≥39 than those with GAGS score of 1-18 (P ＜0.01) and GAGS score of 19-30 (P ＜ 0.01),and higher in patients with GAGS score of 19-30 than in those with GAGS score of 1-18 (P ＜ 0.01).Conclusion GL is positively correlated with the severity of lesions and disease duration in young adult males with acne vulgaris.