Objective To evaluate the influence of psychological intervention on pregnancy rate of in vitro fertilization-embryo transfer.Methods Using the key words,including in vitro fertilization-embryo transfer and psychological,the data were retrieved from CNKI,CBM,VIP,Wanfang and PubMed.The quality of eligible studies was evaluated by two reviews independently and Meta-analysis was conducted on studies.Results Totally thirteen Chinese studies and three foreign studies were included.Conclusions Psychological intervention using in the process of in vitro fertilization-embryo transfer can improve the pregnancy rate,which is worthy of clinical application.

Objective To explore the prevalence of qnr gene in gram-negative bacteria isolated from Renmin Hospital of Wuhan University. Methods qnr gene was detected by PCR in non-duplicate E.coli (n=129), E.cloacae (n=10) and K.pneumoniae (n=29) isolates.PCR technique was used to amplify the gene encoding type I integrons.Kirby-Bauer disk diffusion method was used to test the in vitro suscepti- bility of the isolates to 16 antimicrobial agents.ESBLs were investigated according to phenotypie screening and confirmatory test recom- mended by NCCLS.MIC values of ciprofloxacin were determined for qnr gene positive strains.Results qnr gene were identified in 6 clinical isolates including 5 strains of E.coli and I E.cloacae, qnr gene was not found in K.pneumoniae isolates.The 6 qnr-positive clinical iso- lates were positive for type I integrons.All the 6 strains were susceptible to imipenem but resistant to many other drugs tested.Only 2 of the E.coli isolates were susceptible to ciprofloxacin.Conclusions In Hubei Province, the prevalence of qnr is confirmed.The serious situa- tion of multidrug-resistance in clinical isolates with qnr gene requires careful monitoring of qnr-carrying isolates.

Adolescent ; Adult ; Catheterization, Central Venous ; instrumentation ; Device Removal ; Humans ; Male ; Vena Cava, Inferior ; Vena Cava, Superior

Hepatic ischemia-reperfusion injury(IRI)is a critical problem of liver surgery,especially when comes to liver transplantation.Presently.there are no effective measures for diagnosis,prevention and therapy of IRI,as the mechanisms of IRI still remain unclear.This review summarizes several new hepatic ischemia-reperfusion markers related to cell signal transduetion pathway.including transcription factor STAT,HIF-1 and PPARs,transmission factor MAPK,membrane receptor TLR4 and PARs.and iNOS.Animal studies have indicated that IRI was ameliorated by activating or blockading these markers,which might serve as targets for diagnosis,prevention and therapy of IRI.

It put forward the mechanism of drug pricing and price-adjusting based on classification of drug value.It can set different prices according to different value The higher the value is,the higher the price will be.It could embody the principle of good quality,good price so as to and ensure the unity of price and value.

Total mRNA was extracted from lymphocytes separated from the peripheral blood of allergic patients, and then variable region of heavy chain (VH) and variable region of light chain (VL) cDNA library were constructed by RT-PCR. Human scFv templates for rabbit reticulocyte lysate ribosome display were assembled by primers and linker peptide (Gly4Ser)3. mRNA bound in antibody-ribosome-mRNA complexes was recovered using in-situ single primer RT-PCR, and three rounds of anti-IgE scFv DNA were enriched. The target DNA fragments were double enzyme digested and ligated into plasmid pET22b (+), followed by transformation in E. coli Rosseta (DE3). Positive clones were screened using clone PCR, Dot blotting and antigen ELISA. The correct lengths of VH (400 bp) and VL (710 bp) PCR products were obtained. The expected 1,000 bp ribosome display templates were also observed in agarose gel electrophoresis. After three rounds of ribosome display target sequences were effectively enriched, leading to a library of 10(13) members. Antibodies with the highest ELISA value for IgE were generated in the strain pET-IgE-6. A human anti-IgE scFv library was successfully constructed as described herein. Ribosome display using single primer in-situ RT-PCR as the recovery procedure effectively enriched target sequences. Anti-IgE scFv with high affinity and specificity were identified. The prepared human anti-IgE scFv fragment might be self-developed to a lead drug for treating asthma. Our study provides an alternative method for rapid discovery of human antibodies of therapeutic importance.

Objective To prepare a new type of micropore porcine acellular dermis matrix with the aid of laser (LPADM),and to validate the healing effect of the LPADM through the phrase Ⅰ composite transplanting on the back of the full- thickness skin defects in SD rats.Methods In vitro,the allogeneic fibroblasts were separately cultured with the LPADM (LPADM group) or the non-pore PADM (non-pore LPADM group),while fibroblasts cultured by pure medium were used as control.After culture of 1 day,3 days and 5 days,the contents of IL-10,IL-6,TGF-β1,LN,VEGF expressed by fibroblasts were determined by double-antibody sandwich ELISA method.In vivo,the phrase Ⅰ transplantations of LPADM graft with split-thickness autologous skin were carried on the backs of the full-thickness cutaneous defects of SD rats.The healing condition was observed and analyzed by histological tests.Results The differences of the absorbance value between the LPADMgroup,PADM group and control group in each day were not statistically significant (F=0.050-1.763,P＞0.05).The transplantation of LPADM graft with split-thickness autologous skin graft resulted in high rate of surviving without signs of rejection 3 weeks later.After 1-month of transplantation,the regenerated skin was well enough to be lifted without any serious scars.Conclusions The phrase Ⅰ transplantation of LPADM graft with split-thickness autologous skin graft can accelerate the healing process of full-thickness skin wounds with high biological safety.

Objective To explore the correlation of posttraumatic growth with social support in patients with gastrointestinal neoplasms at the end of life.Methods Cluster random sampling was used to select 280 patients with gastrointestinal neoplasms who were predicted to survive no longer than 6 months in 10 first-class hospitals in Beijing and Tangshan,and they were investigated by Posttraumatic Growth Inventor (PTGI) and Social Support Rate Scale (SSRS).Results The total score of PTGI (61.13 ± 16.78)and the scores of appreciation of life (23.71±7.34),personal strength(10.67±3.55),new possibility(10.07±2.11),relating to others(12.54±5.14),spititual change(10.89±4.35)were higher than median value.The total score of SSRS(41.21±8.48) and objective support(10.27±2.75) were higer than the normal level((39.05±6.35),(8.42±2.27)) (P＜0.05).The appreciation of life was positively correlated with subjective support and the total score of SSRS (r=0.25,r=0.26,P＜0.05),personal strength was positively correlated with objective support,subjective support and the total score of SSRS(r=0.24,r=0.29,r=0.23,P＜0.05),new possibility was positively correlated with subjective support(r=0.21,P＜0.05),relating to others was positively correlated with objective support and the total score of SSRS (r=0.26,r=0.26,P＜0.05),spititual change was positively correlated with objective support and subjective support (r=0.28,r=0.31,P＜0.05).The total score of PTGI was positively correlated with subjective support and the total score of SSRS (r=0.29,r=0.29,P＜0.05).Conclusion Patients with gastrointestinal neoplasms at the end of life experience a certain extent of posttraumatic growth and high level of social support.Posttraumatic growth is positively correlated with social support.

Objective To examine the retina of healthy adults,hypertensive and diabetic patients by integrated backscatter(IBS), in order to offer the reference for clinical diagnosis and differential diagnosis in the various of ocular fundus affection. Methods Retinal IBS of 120 healthy adults,40 hypertensive and 40 diabetic patients was analyzed by HP Sonos 5500. Results IBS% of retina increased with age, and it had positive correlation with age(r= 0.82 ). IBS% of hypertensive group was higher than that of healthy adult group(P 0.05 ). Conclusions IBS% of healthy adults′ retina increases with age; the retinal IBS% of the hypertensive and the diabetic patients are higher than that of the healthy adults.

The action mechanism of matrix metalloproteinases-2 (MMP-2) and tissue inhibitor of metalloproteinases-2 (TIMP-2) in the genesis, development and degeneration of haemangioma was investigated by detecting their expression in the tissue of haemangioma in different phases by using the immunohistochemistry. Fifty paraffin-embedded specimens of skin capillary haemangioma were collected, which were documented in the Department of Pathology, Renmin Hospital of Wuhan University from 2000 to 2006. All samples were stained by regular HE method, and proliferative cell nuclear antigen (PCNA) was tested by immunohistochemical S-P method. The samples were classified according to the Mulliken criteria and the expression pattern of PCNA. Immunohistochemical S-P method was applied to detect the expression of MMP-2 and TIMP-2 in proliferative and degenerative phases of cutaneous capillary haemangioma, and in normal skin tissues. In combination with the detection of the expression of factor VIII-related antigen, it was verified that in haemangioma tissues, the cells expressing MMP-2 and TIMP-2 were vascular endothelial cells. The MMP-2 and TIMP-2 expression was quantitatively analyzed by image analysis system (HPIAS-1000), and one-way ANOVA(107) and SNK(q) test were done to analyze average absorbance (A) and positive area rate of immunohistochemically positive particles by using SPSS11.5. The results showed: (1) Among 50 samples of haemangioma, there were 26 proliferative haemangiomas, and 24 degenerative haemangiomas, respectively; (2) The expression of MMP-2 was weak in normal vascular endothelial cells, cytoplasm of connective tissues and extracellular matrix around blood vessels. The expression of MMP-2 in proliferative group was significantly higher than in degenerative group and control group (normal skin) (P<0.05), but there was no statistically significant difference between the latter two groups; (3) TIMP-2 was highly expressed in normal tissues, degenerative vascular endothelial cells, cytoplasm of connective tissues and extracellular matrix around blood vessels. The expression level of TIMP-2 in proliferative phase was significantly lower than in degenerative phase (P<0.05), and the expression of TIMP-2 in proliferative phase was significantly different from that in degenerative phase and normal tissues (P<0.05). It was concluded that in proliferative phase of haemangioma, MMP-2 may promote over-proliferation of endothelial cells of haemangioma, and in degenerative phase, TIMP-2 can inhibit the proliferation of endothelial cells of haemangioma. The two substances play important roles in the genesis, development and degeneration of haemangiomas.