Penetrating catheterization is an advanced catheterization technique. With the help of guide wire penetrating manipulation, multi-channel or better channel interventional therapies can be successfully carried out. This catheterization technique was first employed in the treatment of patent ductus arteriosus. Thereafter, its clinical application has been gradually extended into the interventional field for the treatment of large artery disease, peripheral artery and vein disease, and it has been also used in non-vascular interventional treatment. Being a unique interventional technique that reflects characteristic clinical thinking, penetrating catheterization technique can fully play the interventional device performance, solve many problems involved in interventional operation, improve the success rate of operation and reduce the complications. This paper aims to introduce the current situation of its clinical practice.

Background:Inflammatory bowel disease(IBD)is a chronic,non-specific,relapsing inflammatory bowel disorder. Prediction of prognosis and relapse is of great importance for disease control. Aims:To analyze the characteristics and related factors for relapse in IBD patients. Methods:Four hundred and seventy-nine hospitalized patients diagnosed as ulcerative colitis(UC,n = 301)or Crohn’s disease( CD,n = 178)from Jan. 2004 to Jun. 2014 were enrolled and divided into relapse group and non-relapse group. The clinical characteristics were collected and univariate and multivariate analysis were performed to identify the influencing factors for relapse. Results:The relapse rates for UC and CD were 52. 49% and 77. 53% ,respectively. In stepwise Logistic regression analysis,younger onset age( < 40 years old,OR =0. 825,95% CI:0. 777-0. 876,P = 0. 000),longer disease duration(OR = 1. 186,95% CI:1. 089-1. 291,P = 0. 000) and extensive colitis(OR = 16. 993,95% CI:2. 670-108. 170,P = 0. 003)were independent risk factors for relapse of UC,while younger onset age( < 40 years old,OR = 0. 944,95% CI:0. 915-0. 974,P = 0. 000)and poor medication adherence(OR = 31. 074,95% CI:10. 456-92. 343,P = 0. 000)were independent risk factors for relapse of CD. Conclusions:Patients at high risk for relapse of IBD can be identified by referring to the related risk factors. Early identification and intervention,persistence for maintenance therapy and improving medication adherence by health education may reduce the clinical relapse of IBD.

Inflammatory bowel disease(IBD)is a chronic nonspecific intestinal inflammatory disease and the etiology and pathogenesis are not fully clarified. Studies showed that immune factors play an important role in the pathogenesis of IBD. Cytapheresis(CAP)is a new blood purification method which can selectively filter or adsorb the inflammatory cells and cytokines in systemic circulation. Many studies confirmed that CAP had some therapeutic effect on IBD. This article reviewed the advances in study on CAP in treatment of IBD.

Different from conventional MRI, Diffusion-weighted(DW) magnetic resonance(MR)imaging is dependent on the molecular motion of water, and provides information on the physiologic state of the brain. In the diagnosis of acute cerebral infarction,the sensitivity is 94% and specificity is 100%. On MRDW imaging, the epidermoid tumors and cerebrospinal fluid or arachnoid cysts, subdura effusions and subdural empyemas,abscess cavities or empyemas and necrotic tumors could be differentiated accurately. MRDW imaging also provides adjunctive information for the diagnosis and evaluation of other cerebral diseases including neoplasms, intracranial infections, traumatic brain injury, and demyelinating processes. As a valuable technique, diffusion-weighted MR imaging should be considered an essential sequence on the diagnosis of brain stroke, and its use in most brain MR studies is recommended.

In the state of the stress,macrophage apoptosis is increased,function of secretion disordered and the ability of antigen-presenting redused,so the defense system is significantly reduced.This is one rea-son of complications including infection,sepsis,systemic inflammatory response syndrome and multiple or-gan failure.But mild heat stress may promote the immunological function of splenic macrophage.

Objective To investigate the expression and significance of cyclin E in rectum carcinoma.Methods The expression of cyclin E was examined by immunohistochemical techniques in 42 cases of rectum carcinoma.Laboratory data were then analyzed statistically together with the related clinical and pathological data.Results The positive expression rate of cyclin E in rectum carcinoma was 66.7％(28/42).There was no significant association between cyclin E and gender,age,histological grade,pTNM stage,metastasis of lymph node (P ＞ 0.05).Conclusions The expression of cyclin E in rectum carcinoma is higher,and it may show highly associated with the occurrence and development of the rectum carcinoma.Cyclin E has no significant association with age,gender,histological grade,pTNM stage,metastasis of lymph

To evaluate the safety of the therapeutic DNA vaccine against the hepatitis B virus. Plasmid DNA was detected by PCR in tissues of BALB/c mice immunized with the plasmids combined with electrotransfer in doses of 10 and 50?g. In long term toxicity study, HBV DNA vaccine was administered by repeated intramuscular injections combined with electrotransfer of pDNA to NIH mice in doses of 30, 60 and 120?g, twice a week for four consecutive weeks. Morbid manifestations, behaviors, hematology, blood chemistry, anti nuclear antibodies, and histopathology were analyzed. Results showed that plasmid DNA was detected primarily in the muscle at the site of injection, where it remained for up to 8 weeks. Eight repeated intramuscular injections of HBV DNA vaccine showed no adverse effects on behaviors, hematology, blood chemistry, and histopathology. No evidences of autoimmune mediated pathology and anti nuclear antibodies were observed in the mice. These results suggested that the therapeutic HBV DNA vaccine was safe and well tolerated.

To develop an effective therapeutic HBV DNA vaccine, two eukaryotic expressing plasmids, namely pcDNAS 2 ?S and pcDNAIIF , which respectively encoding HBV middle envelope protein preS 2 ?S and human IL 2/IFN ? fusion protein, were constructed by DNA recombinant technique. After identification by restriction analysis and DNA sequencing, the constructed recombinant plasmids were transfected into COS 7 cells in vitro with transfection reagent Lipofectamine. The expressed product in supernatant was quantified by ELISA , and the biologic activities of IL 2 and IFN ? were assayed by CTLL 2 cell line proliferation and cytopathogenic inhibition, respectively. The results showed that secretive expression of preS 2 ?S and hIL 2/hIFN ? fusion protein peaked at 48h after transfection, and the expression levels were HBsAg(P/N)=7 63, IL 2=10 35ng/ml, and IFN ?=7 90ng/ml. The IL 2 and IFN ? activities in the culture supernatant of COS 7 cells transfected with pcDNAIIF were 998U/ml and 249U/ml, respectively. These results suggested that the recombinant plasmids pcDNAS 2 ?S and pcDNAIIF were correctly constructed and the transfected cells could express secretive active protein.

Inflammatory bowel disease(IBD)is a group of chronic and nonspecific intestinal inflammatory diseases of unknown etiology. A growing body of evidence indicated that the intestinal microflora might play an important role in the pathogenesis of IBD. As a microecological therapy,fecal microbiota transplantation(FMT)has been used in various of gastrointestinal and metabolic diseases for reconstruction of intestinal flora and achieved favorable results. This article mainly reviewed the progress of technical innovation in FMT and its application in the treatment of IBD.

Pdx-1, an important transcription factor highlighting in the early pancreatic development, islet functions and pancreatic disorders, needs to be more investigated in zebrafish, and siRNA is still seldom applied in zebrafish embryo-related research. Our aim was to explore the role of pdx-1 in pancreatic development of zebrafish embryos by using siRNA approach. Microinjection, reverse transcriptase-PCR (RT-PCR), in situ hybridization and immunofluorescent staining were used in this research, and the morphology of the islet in normal zebrafish embryos, and in those treated with the siRNA specific to pdx-1 (siPDX-1) or siGFP was observed and compared. The expression of pdx-1 was detected in the stages of 1-cell, 2-cell, 4-cell, 8-cell, 16-cell, 16-hour by RT-PCT. The in situ hybridization and immunofluorescent staining results showed that siPDX-1 disturbed the formation of the islet in zebrafish embryos. Pdx-1 played multiple roles in maintaining the phenotype of the islet during embryogenesis in zebrafish.
Embryo, Nonmammalian ; Homeodomain Proteins/genetics ; Homeodomain Proteins/*metabolism ; Islets of Langerhans/cytology ; Islets of Langerhans/*embryology ; Islets of Langerhans/metabolism ; RNA Interference ; RNA, Small Interfering/*genetics ; Trans-Activators/genetics ; Trans-Activators/*metabolism ; Zebrafish