Nanostructures ; adverse effects ; toxicity ; Nanotechnology ; Safety

The effect of traditional therapy is limited for liver cancer,gene therapy gets more and more recognition in recent years.Oncolysis virus is a kind of conditionally replicating virus,with special reproductivity in cancer cells,and then kills them.Gene agents are usually introduced into tumor tissue by intra-tumor and intra-arterial injection,and the technique of interventional therapy is able to satisfy the demand excellently.So,some breakthrough is expected in treating liver cancer by skillfully combining oncolysis virus and interventional technique

Biomarkers ; analysis ; Genomics ; methods ; trends ; Humans ; Preventive Medicine ; methods ; trends

Ecotoxicology ; Humans ; Proteomics ; Risk Assessment

Objective To investigate the variance of peripheral blood prolactin(PRL)in controlled ovarian stimulation.Methods Seventy-two patients,with totally 106 cycles receiving a long protocol of gonadotropin-releasing hormone agonist combined with gonadotropin(Gn)were randomly enrolled in this retrospective study.During controlled ovarian stimulation,peripheral blood hormones were measured by chemiluminescent microparticle immunoassay.Results Prolactin was positively correlated with estradiol (r=0.5897.P＜0.01)while there was no significant correlation between luteinizing hormone and PRLProgesterone had a positive relation with prolactin(r=0.1412,P＜0.01).Conclusions During controlled ovarian stimulation,prolactin secretion is not affected by Gn but may be stimulated by estradiol.Progesterone has a positive relation with prolactin.

DNA Methylation ; Humans ; Poly(ADP-ribose) Polymerases ; genetics ; metabolism

Differential display-PCR was used to clone the differential expressed genes between Mycobacterium tuberculosis virulence strain H37Rv and its avirulent mutant H37Ra. All of different genes were cloned, sequenced and some were analyzed by Northern-blotting. Two cDNAs that appeared to be expressed in H37Rv, but not in H37Ra, were cloned and sequenced. Rv0170, and Rv1894c, code for proteins with unknown functions. The two gene were present in H37Ra, but not expressed. These results show that mRNA DD methodology can represent a potential tool for investigation of M. tuberculosis gene expression.

The etiology and pathogenesis of irritable bowel syndrome (IBS) are not fully understood, and intestinal microbiota had been assumed as a possible factor in the pathogenesis of IBS.Increasing evidences have shown that alterations of gut microbiota were found in IBS patients and modulation of intestinal microbiota might be effective in the treatment of IBS.This article reviewed the mechanism of involvement of intestinal microbiota in pathogenesis of IBS by altering mucosal permeability, activating immune reaction, disturbing gastrointestinal motility and affecting brain-gut axis.

In order to investigate the role of antiapoptosis gene, survivin in the resistance to palcitaxel, the expression of survivin mRNA and protein in the process of paclitaxel treatment in breast cancer cell line MCF-7 was detected MCF-7 cells were incubated with paclitaxel at different concentrations. The growth inhibition rate of MCF-7 was investigated by tetrazolium bromide (MTT) colorimetry. The change of apoptosis was detected by Annexin-V/PI methods. The changes in the expression of survivin mRNA and protein were studied by reverse transcription polymerase chain reaction (RT-PCR) and Western-blot assay respectively. The growth inhibition rate of MCF-7 was increased in a concentration-and time-dependent manner. Paclitaxel of higher concentration could effectively induce apoptosis in MCF-7 cells after 48 h, while the expression of survivin was increased at early time (within 6 h) and decreased after 24 h regardless of treatment concentrations of paclitaxel. It suggested that tumor cells might evade the paclitaxel-induced cell cycle arrest and apoptosis by increasing the level of survivin at early treatment time.

Objective To systematically review the existing evidence about the effect of medial and lateral (crossed) entry pins versus only lateral entry pin fixation on the supracondylar fractures of the humerus in children.Methods Eligible studies were identified in Cochrane library,the Cochrane Bone,Joint and Muscle Trauma Group (till March 2011 ),Medline (from 1966 to March 2011 ),EMbase (from 1966 to 2011 ),CBM (from January 1979 to March 2011 ),PubMed,Wanfang Data (from 2000 to March 2011 ) and CNKI and the references of the included studies and several Chinese orthopedic journals were manually searched.Then,the randomized controlled trials (RCTs) and quasi-randomized controlled trials (CCTs) about two entries (crossed and only lateral pinning) for supracondylar fractures of humerus in children were collected.After evaluation of methodology with the enrolled studies,available data was extracted and systematic review was conducted via the method recommended by the Cochrane Collaboration.Results In total,five RCTs involving 311 patients were involved.Compared with the preoperative data,the meta-analysis results showed no significant difference in reduction stability in terms of change in Baumann angle and Carrying angle between the two groups.For the postoperative function outcome including complete reduction,Flynn grade and full return to function,no significant difference was found between the two groups.For the postoperative complications,there was no difference in the infection of pin tract,though lateral entry resulted in a significant lower incidence of the iatrogenic nerve injury compared with the medial and lateral entry.Conclusions With the Kirschner wire fixation for supracondylar fractures of humerus in children,current existing evidences indicate that the lateral entry of pinning has similar results in reduction stability,function outcome and incidence of pin tract infection compared with medial and lateral entry.Nevertheless,lateral entry,as a safe pinning technique,may effectively decrease the risk of iatrogenic nerve injury