Ovarian cancer correlates with a serials of genes． Since oncogene and tumor suppressor gene have been studied thoroughly, it is tho ught that gene therapy is the newest strategy of cancer treatment． There are many types of gene therapy: Gene complement, moleculchemotherapy, immune-based gene therapy etc． Gene therapy will provide a novel way of ovarian cancer treatment．

Objective To evaluate the value of PET/CT in preoperative assessment and postoperative monitoring of ovarian cancer. Methods A retrospective analysis was conducted in 45 patients of ovarian neoplasm with clinical records underwent 18F-FDG PET/CT, including 10 patients underwent PET/CT before surgery and 35 patients after surgery. The clinical follow-up time was 6 months at least. The diagnosis based on pathology and clinical follow-up data. Results (1) The sensitivity, specificity and accuracy of PET/CT in detecting ovarian cancer were 94.6%,75.0%and 91.1%, respectively. (2) Ten patients before surgery were all detected tumor by PET/CT, but 2 of them were false positive based on pathologic results. (3) Two patients with non-standard surgery were detected tumor by PET/CT. In 33 patients after standard surgery, 6 patients were no tumor detected by PET/CT. In addition,4 patients with normal CA125 and no signs of recurrence and metastasis were detected tumor by PET/CT. The pathology and clinical follow-up data supported the results. 23 patients with higher CA125 were diagnosed recurrence and metastasis based on pathology and clinical follow-up data, 21 of them were detected tumor by PET/CT. Conclusion 18F-FDG PET/CT plays an important role in preoperative assessment, early diagnosis and accurate positioning of recurrent and metastasis of ovarian cancer. It can be used to guide the clinical treatment.

OBJECTIVE:To systematically evaluate the efficacy and safety of modified infusion(2-4 h infusion or continuous 24 h infusion)versus traditional infusion(0.5-1 h infusion)of meropenem in the treatment of severe infectious,and to provide evi-dence-based reference for clinic treatment. METHODS:Retrieved from Medline,CJFD,VIP database and Wanfang database, modified infusion(test group)versus traditional infusion(control group)of meropenem in the treatment of severe infections were collected,and Mata-analysis was performed by using Rev Man 5.0 statistical software after extracting data and evaluating quality. RESULTS:A total of 13 studies were included,involving 1 012 patients. Results of Meta-analysis showed the effective rate [RR=1.25,95%CI(1.10,1.43),P<0.001] and bacterial eradication rate [RR=1.25,95%CI(1.05,1.48),P=0.01] in test groups were sig-nificantly higher than those of control group,and there were no significant differences in the mortality rate [RR=0.74,95%CI (0.46,1.18),P=0.21] and incidence of adverse reactions [RR=0.81,95%CI(0.48,1.39),P=0.45]. CONCLUSIONS:Compared with traditional infusion of meropenem,extended or continuous infusion can improve efficacy in the treatment of severe infections, with similar safety. Due to methodology limit of included studies,large-scale and high quality RCT are required for further valida-tion of the conclusions.

OBJECTIVE:To recommend a monitoring system,Prescription Automatic Screening System(PASS)for rational drug use in clinic in order to improve the rationality of drug use.METHODS:1 200 hospitalization case files were randomly selected,96 800 medical orders of medications were monitored by PASS,and the results were analyzed statistically.RESULTS:The total rate of irrational drug use was 2.28%,among which the drug interaction counted for 88.46%and drug incompatibility 11.54%.CONCLUSION:PASS can efficiently monitor the irrational drug use in medical order,hence prevent and reduce adverse drug reactions,therefore it should be widely used in clinic.However,PASS has some limits and needs further improvement.

Objective To analyze MRI and MRCP appearances of duodenal papilla adenocarcinoma with low biliary obstruction,in order to improve the diagnosis of this lesion.Methods The clinical data of 29 patients with duodenal papilla adenocarcinoma con-firmed by pathology were retrospectively analyzed.All cases were scanned by un-enhanced MR and MRCP,and the lesion shape,sig-nal characteristics and biliary obstruction of the lesion were analyzed.Results A soft tissue mass or nodule in the duodenal papilla region was showed in 29 cases.On non-enhanced T1 WI,1 9 lesions demonstrated slightly hypointense ,10 lesions were isointensity. On T2 WI,21 lesions were slightly hyperintense,8 lesions were isointensity.On DWI(b=800 s/mm2 ),the lesions were hyperintense or slightly hyperintense.On MRCP,the narrow at the distant end of the common bile duct was showed;20 lesions showed the expan-sion of intra-hepatic bile duct and common bile duct,and showed “soft rattan sign”,7 lesions showed the expansion of the bile duct inside and outside the liver and the pancreatic duct,and “double duct sign”could be seen.2 cases showed the expansion of the com-mon bile duct.Conclusion The combination of non-enhanced MR and MRCP can show duodenal papilla adenocarcinoma with low biliary obstruction .Definite MRI diagnosis of duodenal papilla adenocarcinoma is important for treatment.

Objective: To investigate the role of indoleamine 2, 3-dioxygenase in the development of uterine cervical squamous carcinoma. Methods: From January 2008 to December 2008, 116 uterine cervical carcinoma specimens and 18 metastatic lymph node specimens from patients with CIN Ⅰ-Ⅲ and uterine cervical squamous carcinoma were evaluated for iDO expression by immunohistochemistry. Twenty normal cervical specimens and 20 normal lymph node specimens were used as the controls. Results: The expression of IDO was not found in normal cervix and CIN Ⅰ. In CIN Ⅱ, IDO expres-sion was weakly positive in 2 cases (2/10, 20%) and negative in 8 cases (8/10, 80%). In CIN Ⅲ, IDO expression was weak-ly positive in 8 cases (8/13, 61.5%), positive in 1 case (1/13, 7.7%) and negative in 4 cases (4/13, 30.8%). The positive ex-pression rate of IDO in cervical cancer stage Ⅰ -Ⅳ was 100% (83/83). In cervical cancer stage Ⅰ A and Ⅰ B, the positive ex-pression rate of IDO was significantly higher than that in CIN Ⅱ and CIN Ⅲ (P<0.01). The positive expression rate of IDO in cervical cancer stage Ⅱ A-Ⅳ B was significantly higher than that in Ⅰ A and Ⅰ B. IDO expression was associated with cervi-cal cancer progression (OR=0.807, P<0.01). IDO expression in primary lesions with lymph node metastasis was significant-ly higher than that in those without lymph node metastasis. IDO expression rate was 100% in metastatic lymph nodes. The IDO expression was not associated with cervical squamous carcinoma differentiation degree (OR=-0.139,P>0.05). Conclu-sion: In CIN Ⅱ, escape mechanisms that stimulate cervical squamous carcinoma progression is gradually developed. IDO expression in metastatic lymph nodes is possibly associated with immune tolerance. IDO expression is not associated with differentiation degree of cervical squamous carcinoma. IDO may be a prognostic factor for uterine cervical squamous carci-noma and a therapeutic target for treatment.

Objective To evaluate the effects of hyperbaric oxygen (HBO) and cisplatin (DDP) on inhibition of A549/DDP cells in vitro and to explore the impacts of HBO on cell cycle and apoptosis.Methods The cytotoxicity of HBO and DDP was determined by Methyl thiazolyl tetrazolium (MTF) assay; flow cytometry (FCM) was used to investigate the impacts on cell cycle and apoptosis of cell line A549/DDP.Results Hyperbaric oxygen alone significantly suppressed A549/DDP cells proliferation (P ＜ 0.05),compared with control group of normal oxygen,and the inhibition ratio was 2.90％.DDP at concentrations ranging from 3 μg/ml to 24 μg/ml significantly inhibited the proliferation of A549/DDP cells in a dose dependent manner,that was concentrations of 3,6,12 and 24 μg/ml brought inhibition ratio of 1.87％,4.62％,11.15％ and 30.45％ ; Hyperbaric oxygen can enhance the inhibition effect of DDP to A549/DDP cells,when hyperbaric oxygen affiliated with DDP of concentrations above,the inhibition ratios were 4.37％,8.92％,21.88％ and 48.71％,respectively,which has significant difference with the single DDP groups.FCM analyses showed that HBO arrested A549/DDP cells at the S phase,that was cell number of G0/G1 phase reduced significantly and of S phase raised significantly,compared with normal oxygen group(P ＜0.01),that was the percentages of cells in S phase of control group were 9.5％ and HBO group were 20.9％,while the percentages of cells in G0/G1phasc were 82.2％ and 66.3％,respectively.In addition,there were more apoptotic cells in the HBO group with the percentage of 7.9％,while the percentage was 2.8％ in the normal oxygen group.Conclusion Hyperbaric oxygen could play together with DDP to inhibit A549/DDP cells proliferation.HBO could block the cell cycle at S period and induce apoptosis.

Objective To investigate the utility value of monoexponential and biexponential DWI in the differential diagnosis between benign and malignant liver neoplasms.Methods Seventy three patients with pathologically or clinically confirmed liver mass,were analyzed retrospectively and categorized into benign and malignant groups between January 2013 and October 2013.Malignant group included 46 patients with 53 lesions,while 27 patients in benign group had 35 lesions.All patients underwent MR examinations on 3.0T system (GE 750).Conventional MR T1WI,T2WI,DWI(b=0,800 s/mm2) (to obtain ADC with monoexponential modeling),multi-b value DWI(b=0,20 50,100,200,400,600,800 and 1 200 s/mm2) (to obtain Slow-ADC,Fast-ADC,f with biexponential modeling) and dynamic enhancement were performed.The ADC,Slow-ADC,Fast-ADC and f mean values of benign and malignant liver neoplasms were measured and analyzed by using independent samples t test.Diagnostic efficacy of these parameters in malignant group was evaluated by using receiver operating characteristic curve,with histopathologic findings as the gold standard.Results ADC,Slow-ADC,Fast-ADC and f of malignant group were lower than those of benign group [ADC:(1.79±0.35)× 10-3 mm2/s vs (1.16±0.36) × 10-3 mm2/s; Slow-ADC:(1.67±0.25) × 10-3 mm2/s vs(0.94±0.22)×10-3mm2/s; Fast-ADC(72.40±23.70)×10-3mm2/s vs(34.62±17.43)×10-3mm2/s; and f:(33.59± 11.77)％ vs (22.28±8.97)％ in benign and malignant groups,respectively).Significant inter-group difference was observed in ADC,Fast-ADC,Slow-ADC and f (t=0.89,14.77,8.96 and 5.47,respectively and P＜0.05).The areas under the ROC curve (AUC) of ADC,Slow-ADC,Fast-ADC and fwere 0.938,0.974,0.895 and 0.789,respectively.The sensitivity and specificity of ADC,Slow-ADC,Fast-ADC and fwere 90.6％ (48/53),96.2％ (51/53),90.6％ (48/53) and 90.6％ (48/53) and 85.7％ (30/35),91.4％ (32/35),82.9％ (29/35) and 57.1％ (20/35)respectively for differentiating benign from malignant hepatic lesions.Conclusion ADC obtained with mono-exponential modeling and Fast-ADC,Slow-ADC,f obtained with biexponential modeling are useful parameters in distinguishing benign and malignant hepatic lesions,among which slow-ADC demonstrates the highest diagnostic efficacy.

Objective To explore the pathogenic genes relevant to Behcet's disease (BD) by building the differentail gene expression profiles of peripheral blood leukocytes in BD. Methods Oligonucleotide gene array from Affymetrix Company was applied to study the differed expression levels of whole genome between three age and sex matched BD patients and normal controls. Four genes, BCL6, LRAP, ICOSLG and MME, were selected to be tested for gene expression levels by real-time PCR in the groups of BD, normol controls (NC), Lupus and rheumatoid arthritis (RA) peticnts. Results ① Differential gene expression profile of BD compared to that of normal controls was built up. It contained 89 up-regulated and 57 down-regulated genes. ② Four genes mentioned above had significantly higher expression levels in active BD patients than those in NC but had lower exoression levels in stable BD patients. The expression levels of BCL6 and MME were also proved to be increased significantly in BD than in RA and SLE patients. Conclusion ① Our work shed some light on further research of the etiopathogenesis of BD. ② The expression levels of the four genes are proved to be relevant to BD the first time by us. Further analysis showes that TNF-α and IFN-γ can up-regulate the expression levels of BCL6, LRAP and ICOSLG which may be novel to BD. The MME gene is expressed on the surface of cells, which is convenient for test and may potentially be a marker for the diagnosis of BD.

Objective:To treat the chronic non-atrophic gastritis patients induced by Helicobacter pylori with Qingweizhitong Weiwan combined with standard triple therapy,and to detect the differential expression of related immflammation genes with PCR array,and to clarify its mechanism.Methods: Ten patients with chronic non-atrophic gastritis complicated with Helicobacter pylori infection were used as treatment group and 10 health people were used as health control group. The patients in treatment group were treated with Qingweizhitong Weiwan combined with standard triple therapy for 14 d. The blood samples of the subjects in treatment group and health control group were collected before and after treatment,and QIAGEN human antibacterial response PCR array was performed to test the total RNA inperipheral blood and to analyze the differential expressions of 84 inflammation-related genes.Results:The differential expressions of 20 inflammation-related genes were found.Compared with health control group,the expression levels of 20 genes in treatment group before treatment were up-regulated (Fold-change>2);after treatment,the expression levels of 20 genes were down-regulated,and 11 of them were similar to the level in health control group (Fold-change< 2).More specifically,part of 20 genes was related to NLRP3 inflammasome.Compared with health control group,the gene expression levels of CASP1,IL1B,NLRP3,and PYCARD in treatment group before treatment were up-regulated (P <0.05).Compared with before treatment,the expression levels of CASP1,IL1B,NLRP3,and PYCARD in treatment group after treatment were down-regulated (P <0.05).Conclusion:The mechanism of Qingweizhitong Weiwan combined with standard triple therapy in the treatment of chronic non-atrophic gastritis patients induced by Helicobacter pylori may be related to inhibiting the expressions of NLRP3 inflammasome-related genes and interfering the antimicrobial innate immune response.