Objective To investigate the clinical effectiveness of pelvic floor reconstruction surgery with Prolift system and rou‐tine transvaginal surgery in treating pelvic organ prolapse (POP) .Methods We analyzed an retrospective study of 64 patients with POP patients from June 2009 to March 2011 .All patients were divided into two groups ,32 cases of the reconstruction group were treated with pelvic floor reconstruction surgery with Prolift system ,as reconstruction group ,the other 32 cases in routine treatment group with routine transvaginal surgery ,which inclouded transvaginal hysterectomy ,repair of anterior and posterior vaginal wall ,as routine treatment group ,the pre operative ,peri operative data and follow up results were compared between the two groups and to evaluate the outcomes of the two groups after surgery .Results The age ,body mass index ,menopause age ,pregnant times and the degree of uterus prolapse were no significant difference between the two groups (P>0 .05) .The operation of all the patients were successful .No patient were infected after surgery ,no vascular injury ,or urinary system injury ,or rectal injury occurred .Reconstruc‐tion group showed more significant in the amounts of blood loss ,average operation time ,anal exsufflation time ,mean of highest postoperative body temperature ,the urinary canal indwelling time and the postoperative hospitalization time compared with routine treatment group(P<0 .05) .The follow up rate was 93 .8% (30/32)in reconstruction group ,1 patient (3 .1% )experienced recur‐rence ,1 patient(3 .1% )experienced mesh erosion ,1 patient(3 .1% ) experienced new urinary tract symptoms ,of 19 patients who were sexually active ,1 patient suffered from algopareunia and 2 from sexual intercourse discomfort respectively .The follow up rate was 90 .6% (29/32)in routine treatment group ,4 patients(12 .5% )experienced new urinary tract symptoms ,8 patients(25% )expe‐rienced recurrence ,of 16 patients who were sexually active ,3 patients suffered from algopareunia and 5 from sexual intercourse dis‐comfort .The objective cure rates at 3 and 6 months after operation was no significant difference between the two groups (P>0 .05) ,but the objective cure rate at 12 months after operation was significantly different between the two groups (P<0 .05) .The objective curative rate in reconstruction group was significantly higher than that in routine treatment group .Conclusion Pelvic floor reconstruction surgery with Prolift system is a safe and effective methods of minimally invasive surgery ,patients had better regain integrity of anatomical structure and functions of pelvic floor in short term for POP when compared with routine transvaginal sur‐gery ,but its long term study is still needed .

Objective To study the chemical constituents of Salvia miltiorrhiza f. alba Methods The compounds were isolated by chromatographic techniques and their structures were elucidated by spectroscopic analysis. Results Four compounds were obtained from the plant and identified as 8, 9-dihydro-1, 6-dimethylfuro [3, 2-c] naphtha [2, 1-e] oxepine-10, 12-dione (Ⅰ), tanshindiol C (Ⅱ), salviolone (Ⅲ), 1, 2, 6, 7, 8, 9-hexahydro-1, 6, 6-trimethyl-3, 11-dioxanaphtho [2, 1-e] azulene-10, 12-dione (Ⅳ). Conclusion Compound Ⅰ is a new one, named salmilalbanone (8, 9-dihydro-1, 6-dimethylfuro [3, 2-c] naphtha [2, 1-e] oxepine-10, 12-dione), while compounds Ⅱ—Ⅳ are isolated from the plant for the first time.

Objective To investigate the correlation between neural tube defects (NTDs) and DACT1 gene, and provide the basic data for disease diagnosis and genetic counseling. Methods Blood samples were obtained from 163 NTDs patients and 480 unrelated healthy individuals. Mutation detection of DACT1 gene and DNA direct sequencing was carried out by PCR amplification. Bioinformatics analysis of these mutated loci was performed. Results Six mutations were found in NTDs patients, including 4 missense mutations (p.R45W, p.D142G, p.N356K and p.V702G). But these mutations were not found in 480 healthy individuals. Three mutated amino acid residues (p.45R, p.142D and p.356N) were highly conservative in evolution, and the mutated carriers were female patients, and suffered from anencephaly. Conclusion DACT1 gene mutation may be a risk factor of NTDs in Han population of northern China.

Objective To investigate the methylation alteration of genomic DNA (gDNA) and its significance in pedigree neural tube defects (NTDs).Methods Twelve subjects from 3 NTDs pedigrees were enrolled in this study.NTDs patients were served as the case group,and their family members with normal phenotype were served as the control group.Peripheral vein blood was extracted,then gDNA was extracted.The extracted gDNA was treated with sodium bisulfite propagated as DNA segments in the way of whole genome amplification,which was put in I11umina Infinium human methylation 450k bead chip to perform hybridization,elution,extension,and imaging.The chip was scanned by iScan.Genome Studio was used to read the outcome.Illumina methylation analyzer software was used to analyze the methylation data.Results Gene differential methylation analysis showed that differential methylation sites only accounted for 0.2％ of the detected CpG sites and there were 617 differential hypermethylation sites (P ＜ 0.05),and 63 of them represented significant difference(P ＜ 1 × 10-4),including zinc finger E-box binding homebox 2,5,10-methylenetetrahydrofolate dehydrogenase 1 etc;there were 104 differential hypomethylation sites (P ＜ 0.05),and 65 of them represented significant difference (P ＜ 0.01),including Homeobox B7 and runt-related transcription factor 3 etc.Clustering analysis indicated that the tendency of DNA hypermethylation was consistent with NTDs patients,but the tendency of DNA hypomethylation was consistent with the controls.Conclusion In NTDs pedigree,the abnormal DNA methylation alterations may be the risk factor for NTDs occurrence.

Objective: To evaluate the in vitro antibiotic effects of colistin combined with meropenem, levofloxacin or fosfomycin against colistin-heteroresistant Acinetobacter baumannii (A.baumannii). Methods: A total of 576 A. baumannii clinical isolates were collected from the First Affiliated Hospital of Wenzhou Medical University from 2014 to 2015. Minimal inhibitory concentrations (MICs) of colistin against A. baumannii were detected by broth dilution method. Colistin-heteroresistant A. baumannii isolates were screened using population analysis profiles (PAPs). MICs of colistin combined with meropenem, levofloxacin or fosfomycin, and the four drugs used alone against colistin-heteroresistant A. baumannii were detected by checkerboard method and broth dilution method. Fractional inhibitory concentration index (FICI) was calculated to evaluate antibiotic effects. Results: None of the 576 A. baumannii isolates was resistant to colistin as indicated by the broth dilution method. Nine colistin-heteroresistant A. baumannii isolates were identified using PAPs. Compared with the MICs of colistin used alone, the MICs of colistin used in combination with meropenem, levofloxacin or fosfomycin against colistin-heteroresistant isolates were all decreased. Colistin-meropenem combination showed synergistic (55.6%), additive (33.3%) and indifferent effects (11.1%), but no antagonistic effect. Colistin-levofloxacin combination showed synergistic (55.6%), additive (22.2%) and indifferent effects (22.2%), but no antagonistic effect. Colistin-fosfomycin combination showed synergistic (77.8%) and additive (22.2%) effects, but no indifferent or antagonistic effect. Conclusion In vitro use of colistin in combination with meropenem, levofloxacin or fosfomycin has synergistic and additive antibacterial effects against colistin-heteroresistant A. baumannii. Combinations of colistin-meropenem and colistin-levofloxacin have fewer indifferent effects and no antagonistic effect.