Objective To develop a whole-genome DNA microarray based on the genomic sequences of Y. pestis CO92 and 91001 and its use in comparative genomic analysis. Methods A total number of 4 005 genes of Y. pestis were amplified by PCR and printed onto glass slides in duplicate. Fluorescently labeled probes were prepared by marking genomic DNAs with random hexamers and Klenow. Labeled DNAs were hybridized with the microarrays by the method of two-fluorescence comparative hybridization. Three sets of two-fluorescence hybridizations were performed to examine the absence/presence of each gene. Results The results agreed with those derived from the in silico genomic comparison. Conclusion The results demonstrate that the microarry can be a useful tool for comparative genomic analysis of Y. pestis.

Objective To identify and compare the genome differences among live plague vaccines prepared with different strains of the bacillus. Methods The whole-genome DNA microarray of Yersinia pestis was used as a tool to perform genomic comparison among live plague vaccines prepared with 19 different strains. Results Dozens of deletions and/or increased copies of the genomic fragments were identified in the studied vaccines of different strains. Conclusion The revealed genomic differences among the vaccines from different origins account for the variability of the immunogenic and protective potency of live plague vaccines. The whole-genome DNA microarray was also provesd to be an ideal tool for the pre-evaluation of a vaccine strain.

Objective To explore the surface electromyography (sEMG) assist for the rehabilitation training for children with cerebral palsy. Methods 60 children with spastic diplegia were divided into treatment group (n=30) and control group (n=30). All the children received comprehensive rehabilitation, while the rehabilitation program were designed with the assist of sEMG in the treatment group. They were assessed with Gross Motor Function Measure (GMFM) before and 3 months after rehabilitation. Results There was no statistically improvement in dimension A, B, and C of GMFM (P>0.05), but was in the total score and the dimension D and E (P<0.0001). There was no statistical difference in dimension A, B, and C between 2 groups (P>0.05), but was in the total score and the dimension D and E (P<0.01) after rehabilitation. Conclusion The sEMG might be helpful for the rehabilitation for children with cerebral palsy.

AIM:To investigate the effects of P34H gene silencing on the expression of P34H and activity of hyaluronidase (HYD) in mouse sperm.METHODS:The recombinant plasmid series of P34H targeted short hairpin RNA (shRNA) were constructed by GV248 plasmids vector.These recombinant plasmids were transformed into DH 5αcompetent cells, and the plasmids were taken from DNA sequencing analysis .The HEK293T cells were co-transfected with shRNA and lentiviral packaging plasmids .The 3 kinds of recombinant lentiviruses and negative control lentiviruses were used to in -ject into the mouse epididymis and the expression of P 34H at mRNA and protein levels was detected by real-time PCR and Western blot, respectively.The location of P34H protein on the mouse spermatozoa was determined by indirect immunofluo-rescent staining using P34H antibody.The positive rate and activity intensity of HYD was detected by modified sodium hya-luronate-gelatin membrane.RESULTS:DNA sequencing analysis confirmed that the 3 P34H-shRNA sequences were suc-cessfully inserted into the lentiviral vectors .P34H expression in epididymis tissue was significantly decreased at both mR-NA and protein levels compared with those of the non-transfected and normal control vectors (P<0.05).The GV-P34H-shRNA-1 played a significant role in reducing the percentage of P 34H positive rate and the activity of HYD in mouse sperm.The silencing effect did not significantly differ between the non-transfected and normal control vectors .CONCLU-SION:Silencing of P34H significantly inhibits the percentage of P 34H positive rate and the activity of hyaluronidase in mouse sperm.

BACKGROUND: Diabetic cardiomyopathy, a serious complication of diabetes, is an important factor of increased mortality in patients with diabetes. Therefore, providing an effective experimental animal model is particularly important for studying the pathogenesis and treatment methods of diabetic cardiomyopathy. OBJECTIVE:To explore the method of establishing Wistar rat models of diabetic cardiomyopathy. METHODS:Forty rats were randomly divided into the control group (n=10) and diabetic cardiomyopathy group (n=30). The rats in the diabetic cardiomyopathy group were intraperitonealy injected with 60 mg/kg streptozotocin at a time to establish rat models of diabetic cardiomyopathy. The rats in the control group were given the same dosage of citric acid buffer by the same way. The rats in these two groups were al fed with non-fat high-sugar normal diet. RESULTS AND CONCLUSION:Compared with the control group, after 3 weeks of injection with streptozotocinin in rat models of diabetic cardiomyopathy, blood glucose level was significantly increased, myocardial cels arranged in disorder, the nuclei were of different sizes, colagen content in the myocardial tissue was significantly increased, and colagen fibers were thick and disordered. In addition, the mRNA and protein levels of transforming growth factorβ1 and type I colagen, two indices reflecting myocardial fibrosis, were markedly increased. These results indicate that intraperitonealy injecting large doses of streptozotocin (60 mg/kg) at a time and feeding with non-fat high-sugar normal diet could establish a stable rat model of type 1 diabetic cardiomyopathy. This method is safe and effective with high feasibility.

This paper summarized the experience of caring a patient with pancreatic cancer-related depression treated with pancreaticoduodenectomy and postoperative delayed gastric emptying.The nursing included several key points.On the base of collaboration of muhi-disciplinary teams,to strengthen supportive psychological intervention and safety management after admission;to use multimodal analgesia combined with cognitive behavioral therapy to reduce postoperative pain.After the patient was complicated with gastric emptying obstacles,solution-focus mode,sham feeding and nutritional support programs were implemented.Long-term follow-up with physician-nurse collaboration mode was implemented to enhance quality of life of the patient.

Whether InfusaSleeve(IS) catheter can deliver antisense oligodeoxynucleotide (ODNs) following arterial denuation is unknown. We evaluate the feasibility of local endoluminal delivery of C-myc ODNs to the site of arterial denudation by using IS catheter and to determine the biological importance of these effects. IS catheter was introduced into right side of iliac artery of 21 rabbits after angioplasty of iliac artery. Animals were randomized to the control group (n＝6) receiving saline injection and the treated group receiving c-myc antisense (n＝15, 1 mg ODNs per vessel). In two weeks and 40 days following the operation, angiography was performed. Morphometric analyses were carried out in balloon-denuded iliac arteries. The expression of c-myc protein was detected by using a mouse monoclonal antibody to c-myc. Morphometric analyses carried out at 40 days after transcatheter c-myc antisense oligomer administration. The results showed that maximal neointimal area was reduced from 7.66±3.7(×105 μm2) in the control group (n＝6) to 4.04±1.02(×105 μm2) in the antisense treated group (n＝6, P＜0.05). These changes in vascular remodeling following denuding injury resulted in an increase in residual luman from 20～50% in the control group to 70～90% in the antisense-treated group. C-myc protein expression was virtually undetectable at baseline in locally ODNs-delivered arteries and detectable in control denuded arteries. The results show that: ①Single IS transcatheter administration allowed endoluminal delivery of ODNs to the site of arterial injury; ② c-myc antisense oligomer reduced the formation of neointime in denuded arteries, implying a therapeutic potential of this approach.

ObjectiveTo make sure the factors of influencing supply and utilization rehabilitation service of hospitals in Beijing.MethodsFive grade A hospitals in different districts in Beijing were surveyed to realize the condition and factors of influencing supply and utilization of rehabilitation service in polyclinics in Beijing and make sure the developing situation of departments of rehabilitation medicine, and its restriction factors in their hospitals.ResultsThe departments of rehabilitation medicine in the five hospitals had not reached to requirement of administer criterion to comprehensive hospitals, issued by Ministry of Health. The factors of influencing supply and utilization of rehabilitation service in polyclinics in Beijing included: discordant cooperation between rehabilitation section and other sections in hospitals; leaders of hospitals and clinical personnel not understanding the importance of rehabilitation early intervention much; patients and their family not understanding the special curative effect to prevent and treat disability of rehabilitation; the application for reimbursement limitation to the fee for patients to accept rehabilitation treatment and/or stay in rehabilitation section in hospitalization insurance and plan as a whole, and so on.ConclusionThe factors above limit the further development of rehabilitation service of polyclinics in Beijing. Effective measures should be taken and correlative policies should be established in order to promote the rehabilitation service in Beijing.

ObjectiveTo explore the expression and clinical significance ofaquaporin (AQP) 1 and AQP 4 in human pulmonary adenocarcinoma H1299 cell line.MethodsH1299 cell line in human pulmonary adenocarcinoma(pulmonary adenocarcinoma group) were obtained,the expressions of AQP1 and AQP4 in mRNA level and their locations were determined in H1299 cell line respectively by semiquantitative reverse transcription polymerase chain reaction (RT-PCR) and Western blot analysis.The migration of tumor cells were observed by Matrigel invasion assay.Then normal tissues adjacent of pulmonary adenocarcinoma (above cancer line 3 cm,no tumor cell with pathological proven) were as control group.ResultsThe results of RT-PCR showed that AQP1,AQP4 mRNA was 1.030 ± 0.070 and 1.140 ± 0.190 in conlrol group,which were lower than those in pulmonary adenocarcinoma group (2.021 ± 0.250 and 2.180 ±0.180)(P＜0.05 ).The results of Western blot showed AQP1,AQP4 located on the membrane of H1299 cell.Both AQPI and AQP4 mRNA expressed very high in pulmonary adenocarcinoma group,while expressed very low in control group (P＜0.05).Matrigel invasion assay showed that the invasion was positively related to AQP1,AQP4(r =0.351,P ＜ 0.05 ).ConclusionAQP1,AQP4 significantly over express in H1299 cell line,both of them phy important roles in the growth of tumor tissue and cell migration.

Despite a recent American Heart Association (AHA) consensus statement emphasizing the importance of resistant hypertension (RH), its control is still a challenge for conventional medicine. The Chinese herbal formula, Qutan Huayu Fang, has been used effectively to assist antihypertensive agents in blood pressure control, but its effect for RH patients is still unclear. This pilot study aims to explore the effects of taking the formula in addition to antihypertensive medication in the management of RH.