Integron was a novel bacterial resistance gene horizontal transmission element.In recent years, many researchers made a lot of research on the resistance mechanism of pathogen.In this paper, the detection and the novel discovery of the integron gene cassette were summarized , including Enterobacteria, Acinetobacter baumanii, Pseudomonas aeruginosa and other bacteria , on the basis of the multidrug resistance mechanism mediated by integron.The prospect the research was descixbed and more attention should be paid to the prevention and control of multidrug resistant bacteria.

Aim To purify monoclonal antibody in mouse ascites by a modified membrane affinity chromatography(MAC). Methods Human serum albumin HSA was adsorbed on the zeta-bind membrane (ZBM), a positively charged nylon membrane filter. Then the mouse aecites containing mAbs were filtrated through the ZBM to cause the mAbs bind to HSA adsorbed on ZBM. Finally,the purified mAbs were dissociated from the ZBM with guanidine hydrochloride solution. Results A sheet of ZBM(diameter 50mm) absorbed with HSA filtrated by 10 mL ascites could reach its maximum mAb binding capacity after two rounds of re-fitration. The dissociation of mAb from ZBM need only one round of filtration of dissociating solution. The purified mAb displayed a single band after PAGE. Sensitivity of detedcting HSA with purified mAbs was 20-fold higher than that with unpurified ascites in dot innunogold filtration assay(DIGFA). Conclusion The modified MAC with ZBM is a much easier, time-saving and effective method for affinity purification of antibodies in ascites.

Objective To investigate effect of irinotecan combined with cisplatin on level of Bcl-2 and MACC1 protein in serum in patients with cervical cancer.Methods 92 cases of patients with cervical cancer surgery from department of gynaecology and obstetrics,the third People’s hospital of Nanchang were randomly divided into control group and treatment group.Control group was treated with paclitaxel therapy chemotherapy, treatment group were treated with irinotecan combined with cisplatin.Bcl-2 and MACC1 protein in serum were compared before and after the treatment. Results The level of Bcl-2 and MACC1 in both groups were not statistically significant pre-treatment;After treatment, the levels of Bcl-2 and MACC1protein in serum were decreased (P<0.05).Compared with control group post-treatment, the level of Bcl-2 and MACC1 protein in serum were lower in treatment group (P<0.05).During follow-up, death cases of treatment group and control group were 5 cases and 6 cases respectively, the survival rate of 89.13% and 86.96% respectively within the past six months(χ2 =0.103,P>0.05).Death cases of treatment group and control group were 4 cases and 12 cases respectively. the survival rate of 91.30% and 73.91% respectively within one year (χ2 =4.84, P <0.05 ) Conclusion Irinotecan combined with cisplatin in the treatment of cervical cancer in one year survival rate is higher, which may be related to the decrease of serum levels of Bcl-2 and MACC1 protein content.

Objective: To compare the ocular parameters of acute angle closure glaucoma (AACG) and chronic angle closure glaucoma (CACG). Methods: Totally 106 patients with primary angle closure glaucoma were recruited: 58 patients with AACG and 48 with CACG. All patients were divided into 3 groups: AACG attack eyes group, AACG uninvolved fellow eyes group and CACG group and underwent the same ophthalmic examinations, comprising optometry, keratometry, and A-scan ultrasonography. The lens/axial length factor (LAF) and relative lens position (RLP) were calculated. Results: The AACG attack eyes had a significant shallow anterior chamber depth, thick lens, short axial length and larger LAF. hTere tended to be a reduction in the percentage of LAF>0.20 in AACG attack eyes, CACG eyes and AACG uninvolved fellow eyes, though there were no statistically signiifcant difference in all groups (P>0.05). Conclusion: The eyes with AACG attack have a more crowded anterior chamber structure compared with uninvolved fellow eyes and eyes with CACG.

Objective To observe the clinical efficacy of Qishen Yiqi Dropping Pills combined with telmisartan on early diabetic nephropathy with Qi deficiency and blood stasis syndrome and changes of oxidative stress indicators. Methods Sixty patients with early diabetic nephropathy of qi-yin deficiency and blood stasis syndrome were randomly divided into treatment group (30 cases) and control group (30 cases). Both groups were given diabetes education, diabetes diet control and insulin injection. Patients in the control group took telmisartan orally, and patients in the treatment group were given Qishen Yiqi Dropping Pills additionally. The treatment course was 12 weeks. The indicators were observed before and after treatment including blood pressure (BP), fasting blood glucose (FBG), glycated hemoglobin (HbA1c), urinary albumin excretion rate (UAER), urinary 8-iso-PGF2α excretion rate, serum superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and malonaldehyde (MDA), and the clinical efficacy was evaluated. Results The total effective rate of the treatment group was significantly higher than that of the control group, with statistical significance (Z=2.822, P=0.005). After treatment, the indicators including BP, FBG, HbA1c, serum MDA, UAER and urinary 8-iso-PGF2α excretion rate all decreased significantly in both groups (P<0.05). Serum SOD and GSH-Px increased significantly at the same time (P<0.05). BP, FBG and HbA1c were not statistically different between the two groups (P>0.05). However, serum MDA, UAER, and urinary 8-iso-PGF2αexcretion rate were significantly lower (P<0.05), and serum SOD and GSH-Px were significantly higher in treatment group than control group (P<0.05). Conclusion Qishen Yiqi Dropping Pill combined with telmisartan is effective in reducing proteinuria in patients with early diabetic nephropathy of qi-yin deficiency and blood stasis syndrome. Its protective mechanism for kidney is possibly related to inhibiting oxidative stress injury at the early stage of diabetic nephropathy.

Epilepsy ; chemically induced ; Humans ; Poisoning ; physiopathology ; Xylenes ; poisoning

Objective:To study the effect of subepithelial connective tissue grafting in covering an exposed root surface.Methods:Eight cases with gingival recession on upper and lower anterior teeth and premolars receited connective tissue grafting received connective tissue grafting were presented with 12 months of follow-up.Results:Initial gingival recession averaged 4.3 mm,with a mean probing pocket depth of 2.3 mm.At the 12-month follow-up,a mean of 3.0 mm of root coverage was observed(ie,71% root coverage,range 60% to 80%).Probing pocket depth averaged 1.6 mm,indicating a 3.6 mm gain of clinical attachment(range 2 to 5 mm).Conclusion:The application of connective tissue graft results in predictable root coverage and clinical attachment while maintaining shallow pockets.

Objective:To examine the surface of mineral trioxide aggr eg ate (MTA) when treated in different conditions in vitro. Method: Root blocks were prepared. MTA and other three dental materials (Dycal, Dyr act and amalgam) were respectively filled into the root canals of prepared root blocks. The roots with the materials were maintained in distilled water or simul ated body fluid (SBF) at 37 ℃ for 5 days. Scanning electron microscopy(SEM) and X-ray energy dispersive spectroscopy(EDS) were employed to investigate the mor phological changes and chemical components. Results:There was pr ecipitate of simple crystal units or crystalline structure in the MTA specimens. EDS showed one or two peaks corresponding to calcium or calcium and phosphorus. Conclusions:Apatite may produce and grew by MTA on its surface.

Purpose:To explore the clinical significance of VEGF in the diagnosis, treatment and prognosis of common malignant tumors. Methods:The levels of serum VEGF were measured by sandwich enzyme linked immunosorbent assay (ELISA) in 544 patients with malignant tumors and 87 healthy subjects. At the same time,another 6 tumor markers including CEA and CA50 were measured by immunoradiometric assay (IRMA) in 544 malignant tumor patients. Sensitivity, specificity, positive predictive value and negative predictive value of VEGF detection were calculated respectively. The relationship between the pre-treatment levels of serum VEGF and their clinical effect, and between the positive expression number of five kinds tumor markers jointly and the therapeutic effect were analyzed respectively. Results:1. The serum VEGF levels in patients with all kinds of malignant tumors were higher than those of the controls, the mean serum VEGF were relatively higher in patients with gastric cancer, liver cancer and lung cancer. 2. According to the cutoff of medicine reference of VEGF (200.6ng/L), its sensitivity and specificity were 54.2% and 95.4% respectively. There was a significant difference between the sensitivity of serum VEGF in patients with tumor burden (74.9%) and that in patients without tumor burden (20.4%)(P

Objective: To investigate the mechanism of Shenyankang(肾炎康) on rats with mesangial proliferative glomerulonephritis(MsPGN).Methods: MsPGN rat model was induced by chronic(serum-sickness).Six weeks later,MsPGN rats were given 3 ml of Shenyankang oral liquor every day(Shenyankang oral liquor treated group) or 3 ml of water every day(model group).Forty-two days after(using) the drug,urine protein(UP) of 24 hours,renal function and urine level of tumor necrosis factor?(TNF?) and endothelin1(ET1) were evaluated.Pathologic changes of renal tissue were observed by microscopy.Results: Compared to the normal control group,UP of 24 hours,blood urea nitrogen(BUN), serum creatinine(SCr) and urine level of TNF? and ET1 increased significantly in model group((all P