Bevacizumab is an efficient and low-toxicity monoclonal antibody towards serum ventricular endothelial growth factor.At present,bevacizumab has been approved by FDA to use clinically for kinds of cancer,such as colorectal cancer,lung cancer,kidney cancer and breast cancer.As more and more patients received bevacizumab cliniclly,it's toxicities are also focused on increasingly.

Objective:To investigate the localization and expression pattern of nuclear receptor NR4A1 protein in follicle and corpus luteum cells at different estrous stages in cycling female SD rat. Methods:The SD experimental rats were divided into four ovarian stages based on the vaginal lavages,from which the ovaries were obtained in every cycling stage.The localization and expression pattern of NR4A1 in rat ovaries were characterized by immunohistochemistry. Results:NR4A1 was mainly expressed in the cytosol of ovarian theca cells and lutein cells.Expression level of NR4A1 in theca cell of mature follicle was significantly higher than that in the growing follicle(P

Objective:To investigate the in vitro effect of capsaicin on four major rat cytochrome P450 ( CYP) enzymes using a cocktail probe drug method. Methods:The in vitro incubation was divided into capsaicin group and the control group. Rat liver micro-somes, probe drugs, capsaicin at various concentration ( buffer solution in the control group) and cofactors were cultured altogether for 20 min. After the culture, the concentration of metabolites was determined by HPLC to assess the activities of enzymes. IC50 value of capsaicin on every isoform was calculated using Graphpad prism 5. 0. Capsaicin and hepatic microsomess were pre-incubated respec-tively for 0, 5, 10, 15, 20 and 30 min, and then the relative activity of the four isoforms at different time was calculated. Results:The activity of the rat liver microsomes enzyme CYP450 isoforms (CYP1A2, CYP2C11, CYP2E1 and CYP3A2) was all inhibited by capsaicin in vitro with IC50 value of 36. 21, 17. 19, 51. 64 and 18. 86 μmol·L-1 , respectively. Pre-incubation could not increase cap-saicin inhibitory activity against the four CYP enzymes. Conclusion:Capsaicin shows inhibition on CYP1A2, CYP2C11, CYP2E1 and CYP3A2 in rat liver microsomes in vitro without pre-incubation time-dependent property.

Objective To investigate the causes , surgical methods and complications of reoperation of thyroid carcinoma and management .Methods Clinical data of patients with thyroid carcinoma in Department of General Surgery of Tang Du Hospital during Jan .2007 to Apr.2012 were retrospectively analyzed .The causes and complications were studied.Results Postoperative complications happened to 5 cases(13.51%), among whom 2 cases had temporary recurrent laryngeal nerve palsy and they recovered after 2 to 6 months , 2 cases had temporary hypocalcemic convulsions and the symptom resolved after one-week treatment with intravenous calcium gluconate , and 1 case had bucking and recovered after one week of treatment .Conclusion For patients with thy-roid disease,detailed preoperative examination , intraoperative frozen pathological examination , intraoperative explo-ration and the right operation method are the key factors to prevent thyroid carcinoma reoperation .Careful dissection and gradually sever of upper pole of thyroid lobe reduce complications of thyroid carcinoma reoperation .

To understand the personality characteristics and temperament type of medical students in Xi'an Jiao tong University,and to provide scientific evidence for their targeted mental intervention by analyzing graphs about Eysenck personality questionnaire revised in China.,310 medical students were investigated by using EPQ(adult version).We found that there were more male students with typical psychoticism personality than female students with the same personality,and there was statistical significant difference in the distribution of the type of temperament between male and female students.Medical students with stable personality probably accounted for two-thirds of the total.Female students were mainly manifested unstable personality with extraversion,while male students were unstable introvents.In future we should take targeted psychological intervention measures.We are supposed to focus on each student's personality characteristic,temperament type and other specific conditions for a variety of education.

Objective:This study was conducted to investigate Epstein-Barr virus (EBV) infection in gastric cancer in Wuwei ar-ea of Gansu province (China) and the roles of miR-101, EZH2, and COX-2 in EBV-associated gastric carcinomas (EBVaGC). Meth-ods:Tissue microarray technique, immunohistochemistry, and in situ hybridization were performed to detect the expression of EBV-en-coded small RNAs (EBERs), miR-101, EZH2, and COX-2, in gastric cancer tissues (n=120) and the corresponding adjacent tissues (n=120). Results:The positive rate of EBV was 10.0% in 120 cases of gastric cancer tissues. EBVaGC was not significantly associated with lymph node metastasis and developed most often in the cardia and body (P<0.05). The differences in the positive rates of miR-101, EZH2, and COX-2 in 120 cases of gastric cancer tissues and corresponding adjacent tissues were significant (P<0.05). The differences in the positive rates of miR-101, EZH2, and COX-2 in 12 cases of EBVaGC and in 108 cases of EBV-negative gastric can-cer (EBVnGC) tissues were significant (P<0.05). The infection of EBV in gastric cancer tissues was positively related to miR-101 ex-pression. By contrast, miR-101 expression was negatively related to lymph node metastasis and expression of COX-2 and EZH2 in EB-VaGC tissues (P<0.05). Conclusion:EBV infection was related to gastric cancer in Wuwei area of Gansu province. EBVaGC and EB-VnGC have significant differences in lymph node metastasis and in the location of cancer. MiR-101, EZH2, and COX-2 were related to the development of EBVaGC.

A simple and sensitive liquid chromatographic method was developed for quantification of cefotetan disodium (CTT), a semi-synthetic cephamycin antibiotic, in human plasma. CTT and the internal standard chloramphenicol were extracted from plasma by a simple one-step protein precipitation with 35% (v/v) perchloric acid. Separation was carried out on a reverse-phase C18 column with a mobile phase of acetonitile-water containing 0.5% (v/v) phosphoric acids (20:80, v/v) at a flow rate of 1.0 mL/min. The column effluent was monitored by UV detection at 300 nm. The column temperature was maintained at 40°C. This method demonstrated good linearity in the range of 0.525-300.0 μg/mL, with correlation coefficients greater than 0.99. The limit of quantification (LOQ) was 0.525 μg/mL in human plasma. Intra- and inter-day precisions were less than 6.63% in terms of relative standard deviation (RSD). The accuracy, when expressed by the bias, ranged from 0.57% to 4.04%. The mean extraction recovery of CTT was higher than 40.94%. The method was found to be precise, accurate, and specific for CTT quantitative analysis, and was successfully applied for a pharmacokinetic study of CTT after a single intravenous dose of 1.0 g of CTT in healthy Chinese subjects.

Objective To investigate the association between (beta-parvin) PARVB gene rs5764455 polymorphism and susceptibility to non-alcoholic fatty liver disease (NAFLD). Methods A total of 230 patients with NAFLD (NAFLD, n = 230) and 230 control subjects (control, n = 330) were genotyped by PCR and direct sequencing. Clinical information was detected and compared in different groups. Genotypic frequency and gene frequency distribution in the two groups and relative risks to NAFLD susceptibility were assessed statistically , respectively. Results No statistical differences were observed between PARVB gene rs5764455 genotypic frequency with gene frequency distribution and the two groups, respectively (Genotypic frequency χ2 = 0.182, P = 0.913; gene frequency χ2 = 0.180, P = 0.672). Comparing C/T + T/T genotype carrier with C/C genotype carrier, there were no differences concerning the relative risks to NAFLD susceptibility (OR = 1.266, P =0.178;adjusted OR =1.631, P =0.096) before and after adjusting body mass, BMI and so on. In the latter group, there are significant differences in the increases of body mass, BMI, TG, ALT and AST (P < 0.05). Conclusion Non-relationship was observed between PARVB gene rs5764455 polymorphism and the risk of NAFLD in Qingdao Han Chinese.

BACKGROUND: It is recently found that some kinds of antibiotics can aggravate the obstruction of neuromuscular junction(NM J) transmission,exacerbate myasthenia gravis (MG). Hitherto, there are few reports about the effect of antibiotics on transitive function on animal models. Along with the appearance of new antibiotics, the effects of the antibiotics on NMJ transitive function need to be further observed.OBJECTIVE: To investigate the effect of aminoglycoside antibiotics, fluoroquinolone antibiotics and cephalosporin antibiotics on the transitive function of NMJ in MG, and to provide an experimental basis for using those antibiotics securely in clinic and for selecting those antibiotics to treat MG properly.DESIGN: Randomized controlled study based on experimental animals.SETTING: Department of nosocomial infection, neurology and pharmacy in a university hospital.MATERIALS: The experiment was conducted at the Neurological Institute of Tongji Medical College, Huazhong University of Science and Technology from March 2002 to January 2003. Totally 150 healthy female C57BL/6mice, 6 - 8 weeks old, weighting 18 - 20 g, were divided randomly into 4groups: normal group( n = 10), MG group( n = 10), saline group( n = 10)and antibiotics group( n = 120) . Mice in antibiotics group were divided randomly again into gentamicin group, etimicin group, ciprofloxacin group,fleroxacin group, cefuroxime group and cephradine group, with 20 mice in each group.INTERVENTIONS: C57BL/6 mice were immunized with the acetylcholine receptor(AChR) protein in complete Fruend' s adjuvant(CFA) to establish experimental autoimmune myasthenia gravis(EAMG) . Mice in saline group were injected normal saline and mice in antibiotics group were injected antibiotics(10 mg/kg), lasted 14 days. Mice in MG group were without any treatments. On the 7th day after the last immunization and the 14th day after the antibiotics treatments, MG scores was evaluated, repetitive nerve stimulation(RNS) and the levels of acetylcholine receptor antibody(AChRab)were tested at the same time.RESULTS; The mean symptom scores on the 14th day after the antibiotics treatment with gentamicin, etimicin, ciprofloxacin and fleroxacin were higher than that in MG group, and there was no significant difference in the mean symptom scores among cefuroxime group, cephradine group and MG group. The decrement percent of RNS in gentamicin group [ (21.22 ± 4.63)% ], etimicin group[ (19.08 ±4. 25)% ], ciprofloxacin group[ (22.25 ±4.95)% ] and fleroxacin group[ (21.71 ±4.99)% ] were higher than that in MG group[(15.75 ±2.22)% ], but no difference was found in the attenuation rate among cefuroxime group[(15.25 ±2. 87)% ],cephradine group[ ( 15.25 ± 3.30)% ] and MG group. The levels of AChRab in gentamicin, etimicin, ciprofloxacin and fleroxacin groups were also higher than that in MG group, but no difference was found among cefuroxime group, cephradine group and MG group.CONCLUSOIN: Aminoglycoside and fluoroquinolone antibiotics can aggravate the obstruction of NMJ transmission, and cephalosporin antibiotics have no obvious effect on the obstruction of NMJ transmission function in MG.

Objective:To evaluate the application of PG-SGA,NRS 2002 and BIA in nutritional assessment and screening of patients with gynecologic cancers.Methods:118 patients were randomly selected.Nutritional status were evaluated by PG-SGA,NRS 2002 and BIA,and consistency between each tools were compared.Results:The prevalence of malnutrition or nutritional risk of patients were 64.4％ (PG-SGA),57.6％ (NRS 2002),and 33.9％ (BIA) respectively.In all patients,the consistency of PG-SGA and NRS 2002 was high (P ＜ 0.001),while there were not significantly consistent between BIA and PG-SGA,or between BIA and NRS 2002 (P ＜ 0.001).Conclusion:According to the evaluation of PG-SGA or NRS 2002 in gynecologic patients,the prevalence of malnutrition or nutritional risk is high,and these two scales are suitable for nutritional assessment and screening of gynecologic cancer patients,especially in ovarian cancer patients.In addition,BIA may be a promising tool to evaluate cervical cancer patients' nutritional status.