Objective To characterize the molecular characteristics of hemagglutinin (HA) and neuraminidase (NA) of influenza B viruses isolated in Jiangsu province,2011.Methods Thirteen strains of influenza B virus in different areas and epidemic period in Jiangsu province,2011 were selected for whole-genome sequencing,and analysis of molecule epidemic characteristics for HA and NA was carried out by bioinformatics method.Results Of the 13 randomly selected influeuza B strains,10 strains were assorted to Victoria lineage strains with NA genes from Yamagata lineage,and 3 strains belong to Yamagata lineage.Compared nucleotide and amino acid sequences of HA and NA genes with their vaccine strains respectiuely,196/197 glycosylation site appeared on HA1 gene in Yamagata/Victoria isolates virus.Conclusion Both B/Victoria and B/Yamagata lineage viruses co-circulated in Jiangsu province,and reassortant virus of Victoria lineage were predominant virus.

OBJECTIVETo construct mouse enhanced green fluorecence protein (EGFP) -peroxisome proliferator-activated receptor (PPAR)gamma2, and to detect EGFP-PPARgamma2 expression in infected mouse bone marrow mesenchymal stem cells (BMSC).

METHODSCut the fragment of PPARgamma2 from the expression plasmid pcDNA flag PPARgamma2, then cloned the gene fragment into pEGFP-C1 and pEGFP-N1 vector. Subsequently, subclone the fragment EGFP-PPARgamma2 from pEGFP-C1-PPARgamma2 into the shuttle plasmid DC315. HEK293 cells were co-transfected with the constructed recombinant shuttle plasmid DC315-EGFP-PPARgamma2 and large adenovirus helper plasmid pBHGlox deltaE1, 3Cre in mediation of liposome. The obtained replication-defective recombinant adenovirus Ad-EGFP-PPARgamma2 was confirmed. Then it was propagated in HEK293 cells. After the BMSC were transfected for 72 h, adipogenic differentiation was demonstrated.

RESULTSHEK293 cells were transfected with the pEGFP-C1-PPARgamma2 or pEGFP-N1-PPARgamma2 in mediation of liposome. The former green fluorescence protein was better than the latter by fluorescence microscope. The recombinant plasmids were digested and identified. Western blot analysis showed the expression of EGFP-PPARgamma2 in vitro. EGFP-PPARgamma2 protein was detectable in the nucleus of BMSC.

CONCLUSIONThe recombinant adenovirus encoding EGFP-PPARgamma2 fusion protein was successfully constructed, which provided a basis for application of EGFP-PPARgamma2 gene to adenovirus-mediated gene therapy.

Adenoviridae ; Animals ; Bone Marrow Cells ; metabolism ; Genetic Vectors ; Green Fluorescent Proteins ; metabolism ; HEK293 Cells ; Humans ; Mesenchymal Stromal Cells ; metabolism ; Mice ; PPAR gamma ; metabolism ; Recombinant Proteins ; metabolism ; Transfection

Objective Effectiveness of two kinds of thermochemotherapy infusion from intraarterial approach were studied in the grafted liver VX2 tumors of rabbit.Methods VX2 tumor model was established in 30 Newzland rabbit's livers.Percutaneous transfemoral hepatic arterial catheterization with fixation of the cathether tip inside the feeding vessel was carried out under DSA guidance.All 30 rabbits were divided into three groups(n=10 in each group),normal temperature 100 ml saline+Adriamycin(ADM)infusion(group 1),60℃100 ml saline+ADM continuous perfusion(group 2)and 60℃100 ml saline+ADM intermittent perfusion(group 3).After the perfusion,the lasting time periods of 43-45℃for tumor tissue of group 2 and 3 together with the concentrations of ADM within tumor's tissue were measured.Results Concentrations of ADM were shown as(12.013?2.237)?g/ml,(17.622?1.368)?g/ml,and(11.519?1.225)?g/ml for group 2, group 3 and group 1 respectively.60℃intermittent perfusion vs 60℃continuous perfusion showed P＜0.05, 60℃continuous pefusion vs normal temperature perfusion also showed P＞0.05. 43-45℃period lasting time (min)for 60℃continuous pefusion vs 60℃intermittent pefusion were(4.1?2.7)min and(11.3?3.3)min respectively,the latter was three times more than the former.There were no differences shown betwen the temperature,respiration and heart rate of group 2 and group 3.Conclusion Intermittent intraarterial perfusion thermochemotherapy is a more effective interventional management among all thermochemotherapies.

OBJECTIVETo explore the expression of manganese superoxide dismutase (MnSOD) in colorectal carcinoma and its relationship with the clinicopathological findings.

METHODSThe expressions of MnSOD in colorectal carcinoma, adenoma, and adjacent corresponding intestinal mucosal tissues were detected by immunohistochemistry and reverse transcription-polymerase chain reaction (RT-PCR). The relationship between MnSOD expression level in colorectal adenoma and clinical parameters was analyzed.

RESULTSThe expression of MnSOD was negative in adjacent corresponding colorectal tissues. The positive expression rate of MnSOD was 44% (11/25) in colorectal adenoma and 76% (19/25) in colorectal carcinoma (P < 0.05 when compared with the colorectal adenoma and its adjacent tissues). The expression of MnSOD was positively correlated with histopathological grades (P < 0.05) but not with other clinicopathological findings (P > 0.05).

CONCLUSIONThe expression of MnSOD may be associated with the carcinogenesis and progression of colorectal carcinoma, and therefore may be used as a new biomarker.

Adult ; Aged ; Colorectal Neoplasms ; enzymology ; pathology ; Female ; Humans ; Male ; Middle Aged ; Superoxide Dismutase ; metabolism

OBJECTIVEHuman cytomegalovirus (HCMV), especially the immediate early (IE) gene of the virus, has been implicated in the pathogenesis of atherosclerosis. The aim of this study was to confirm the presence of HCMV IE gene DNA in intracranial artery walls and the association of the virus with the development of atherosclerosis.

METHODSHCMV IE gene was tested in formaldehyde-fixed intracranial arteries from 35 cases with cerebral atherosclerosis and 20 negative controls. In situ hybridization as well as polymerase chain reaction (PCR) was used to detect the presence of DNA in sections of paraffin-embedded tissue samples. Probes and primers were derived from major immediate early (MIE) genomic regions of cytomegalovirus strain AD169.

RESULTSThe DNA of HCMV was found in 40.0% and 10.0% of arterial walls with atherosclerosis and negative control group by in situ hybridization, respectively, in 60.0% and 30.0% by PCR, respectively. Significant deference was found between them (P=0.018, P=0.032). There was also significant difference between grade III-IV and grade I-II atherosclerosis by both methods (P=0.027, P=0.009).

CONCLUSIONThe results suggested that HCMV IE DNA exists in the atherosclerotic arterial walls, therefore, there might be an association between the IE gene in intracranial artery walls and the atherosclerosis. The arterial wall with the smooth muscle cells, might be the potential site of the virus persistence. HCMV may play a role in the pathogenesis of the atherosclerosis.

Aged ; Carotid Arteries ; pathology ; virology ; Cerebral Arteries ; pathology ; virology ; Cytomegalovirus ; genetics ; pathogenicity ; Cytomegalovirus Infections ; DNA, Viral ; analysis ; Female ; Gene Expression ; Genes, Immediate-Early ; Humans ; In Situ Hybridization ; Intracranial Arteriosclerosis ; etiology ; pathology ; virology ; Male ; Polymerase Chain Reaction

Toxoplasma gondii is a worldwide distribution of Apicom-plexans,which are widely parasitic in human and warm-blooded animals.Due to the factors such as host and geographical distribution,the population structure has rich genetic diversity.At present,the study of the genotype of Toxoplasma gondii and summary papers are relatively few.This paper reviews the biological information that has been reported in the world regarding the toxoplasmosis of birds such as domesticated chickens,ornamental birds,pet birds and wild rare birds,and to provide basis for further research on biological information such as epidemiology of bird toxoplasmosis and population structure of insects.

Objective To compare the walking abilities of an unilateral transfemoral amputee with four different prosthetic knee joints, to provide a reference for clinical prosthetic prescription. Methods An unilateral transfemoral amputee was asked to wear four kinds of pros-thetic knee joints, mechanical four-bar, pneumatic four-bar, hydraulic and intelligent prosthetic knee joints, and evaluated with Timed Up and Go Test, indoor 6-Minute Walk Test, Static Stand Balance Test and a 1000-meter Outdoor Walking Ability Test, wearing Intelligent De-vice for Energy Expenditure and Activity. Results The amputee consumed the least energy and walked the fastest with intelligent prosthetic knee joint. Conclusion There are some difference in walking ability with different prosthetic knee joints.

Objective To observe the influence of Chinese medicine skin dialysis on traditional Chinese medicine (TCM) syndrome scores and microinflammation in patients with chronic renal failure(CRF). Methods A total of 180 patients with CRF were divided into groups A, B and C, 60 cases in each group. All of the 3 groups were given conventional treatment, and additionally, group A was given Chinese medicine skin dialysis, and group B was given pure water dialysis. Meanwhile, 60 healthy volunteers served as normal control group (group D), and had no any medication. The course of treatment lasted for one month. Before and after treatment, we examined the scores of TCM syndromes and the levels of 24-hour urinary protein, serum creatinine (SCr), blood urea nitrogen (BUN), estimated glomerular filtration rate (eGFR), albumin (ALB), immunoglobulin A(IgA), immunoglobulin G (IgG) , immunoglobulin M(IgM), interleukin 6 (IL-6) , interleukin 1(IL-1), hyper-sensitive C reactive protein (hs-CRP), and tumor necrosis factor alpha (TNF-α). Results After treatment, the scores of TCM syndromes and the levels of 24-hour urinary protein, SCr, BUN, eGFR, IL-6, IL-1, hs-CRP, and TNF-α in the 3 groups were decreased (P < 0.05 compared with those before treatment), and were markedly lower in group A than those in group B and group C (P<0.05); serum levels of IgA, IgG, IgM and ALB in the 3 groups were increased(P < 0.05 compared with those before treatment), and the levels in group A were significantly higher than those in group B and group C (P < 0.05). However, the levels of observation indexes did not arrive to the levels of group D(P<0.05). Conclusion Chinese medicine skin dialysis is effective on relieving the symptoms of CRF patients and enhancing the therapeutic effect through decreasing inflammatory mediators, inhibiting micro-inflammation and improving nutritional status.

Objective To analyze the clinical laboratory indicators of severe fever with thrombocytopenia syndrome( SFTS) patients caused by novel Bunyavirus infection，and focus on comparing the indicators of severe patients with different prognosis． The findings may help to predict poor prognosis for severe patients in the early stage． Methods The clinical laboratory indicators of all diagnosed confirmedly patients in two Hospitals，from January 2011 to December 2018，and the differences between groups were analyzed．Ｒesults A total of 168 clinically diagnosed SFTS cases ( 117 cases of non－severe cases and 51 cases of severe cases) were included in this study． In the severe cases，the prognosis was improved in 30 cases and the prognosis was poor in 21 cases． The laboratory indicators of severe patients with different prognosis were compared． The data showed that the levels of several indicators in patients with poor prognosis were statistically different with these in patients with better prognosis． In addition，the proportion of coma，diffuse intravascular coagulation and heart failure in patients with poor prognosis was significantly higher than that in patients with improved prognosis ( all P＜0. 05) ． Conclusion Differentiated prevention and treat- ment strategies should be developed for severe patients with possible poor prognosis．

Objective To investigate the clinical and imaging features of patients with Alzheimer' s disease (AD) and vascular dementia (VaD) and find an effective method to make differential diagnosis between the 2 entities. Methods One hundred and sixty-two patients with dementia,admitted to our hospital from August 2006 to June 2011, and 42 patients with dementia found from community epidemiological survey were chosen in our study; their clinical data were retrospectively collected and analyzed; in these patients,114 patients were with AD and 90 patients were with VaD.Mini Mental State Examination (MMSE) was performed on these patients and the cognitive competence,behavioral symptoms and imaging data of these patients were analyzed and compared. Results More female,higher education level and longer course of disease in patients with AD were noted as compared with those in patients with VaD (P＜0.05); the scores of attention and calculation in patients with VaD were obviously lower than those in patients with AD (P＜0.05); the scores of short-term memory,retelling and reading comprehension in patients with VaD were obviously higher than those in patients with AD (P＜0.05); the happening of repeated convergence behavior in patients with AD was much more often than that in patients with VaD (P＜0.05); patients with AD had higher ratio of shrinking hippocampus than patients with VaD, and the incidence of vascular disease in the brain of patients with VaD was significantly higher than that of patients with AD (P＜0.05). Conclusion Substantial differences on clinical and imaging features exist in AD and VaD patients,which can be attributed to the differences of lesion nature and distribution,as well as the underlying pathophysiological procedures of each disease.