Objective To isolate differently expressed cDNAs associated with vascular dementia from hippocampus of rats. Methods The creation of vascular dementia model of rat was by 4 vessel occlusion method. The learning and memory of vascular dementia(VaD) rats were examined by Morris water maze. RNA fingerprinting was used to analyse the differently expressed cDNAs in the hippocampus of normal aging and VaD rats. At the same time, cDNAs expressed differently during the progression of VaD were isolated. Results Thirty two candidate cDNA fragments were isolated by RNA fingerprinting. The two cDNA fragments specifically expressed in VaD rats were analysed by Northern blot. Homology analysis through BLAST revealed that these two were novel genes and were given numbers of BG937392 and BG937393 in the gene bank. Conclusions RNA fingerprinting is a simple and quick method for isolating differently expressed genes. These two new gene fragments may contribute significantly to the process of VaD as pathogenic genes or protective genes.

Objective To research and develop the mobile platform-oriented echocardiogram data visualization technology for the evaluation of left ventricular diastolic function,and investigate its application value.Methods First,diagnostic algorithms for the evaluation of left ventricular diastolic function (based on recommendations from ASE & EAE guidelines) were programmed into a mobile application software package,using Adobe Flex builder 4.0 as a basic tool for data visualization.Second,the program was installed in the Apple iPad4 tablet computer,then debugged and improved according to feedback information from practical applications.Results The echocardiogram data visualization for the estimation of left ventricular filling pressures in patients with depressed ejection fraction(EF) or normal EF and grading diastolic function can be implemented in mobile platform device,and simultaneously with emergency bedside echocardiography.The evaluation process can be visually presented by using the graphics to show the algorithm framework,the animation to express the analysis step,the axis to indicate the direction of information,and the color to differentiate the degree of the diastolic dysfunction.Conclusions The mobile platform-oriented echocardiogram data visualization technology makes the evaluation of left ventricular diastolic function more convenient,efficient and fast,and shows its potential to become an important adjunct to evaluation of cardiac function in the context of mobile health.

Objectives:To discuss clinical significance of enternal nutrition of Nutrison fibre in neurosurgical coma patients. Methods:The study group(20 cases,GCS≤5) was fed gastrically with Nutrison fibre by a nasal feeding tube, and the control group(20 cases,GCS≤5) was supported with common fluid diet.In all cases,triceps skin fold,blood sugar,albumin,total lymphocyte count,complications and nitrogen balance were observed. Results:There were not significant differences between the study group and the control group in nutritional status,but the rate of complication in study group was obviously lower than that in control group. Conclutions:Enteral nutrition with Nutrison fibre can decrease the complications in nurosurgical coma patients and improve the quality of life.

Objective To supply the fastest and most effective first aid for patients with the least medical workers and within the shortest time after the occurrence of emergent public health accidents by application of emergency management. Methods We carried out retrospective invetigations about 55 great medical succors from the year of 2004 to 2006.Results Application of emergency nursing management played a pivotal role in these 55 great medical succors. The medical workers handled all the emergencies without confusion and a large number of patients got first aid in time. Conclusion It could facilitated the first aid for emergent public health accidents by application of emergency nursing management.

Objective To discuss with micro-tympanoplastic operation with osteo retention on treating cholesteatomatous otitismedis. Methods Choose 33 cases cholesteatomatous otitis medis patients who toke the tympanoplastic with osteo retention operation,then analyze the postulate and method of the operation, curative effect and complication after operation. Results Follow up with those patients by 12-72 months, and when 3-4 months after operation we endoscopiced the ears, could see that 43 cases of patients ear mastoid process and tympanic sinus were covered with epithelium, those mastoid cavity were well epithelial metaplasia;and the middle ear was separate from mastoid cavity; 39 cases patient of transplant eardrums are heal up (39/43, 90.7%). 2 cases have perforation of the tympanic membrane toke place after 4 months and 6 months with the operation, and it will heal up by anti-inflammatory drug and laser burning, 1 case had tympanic sinus hyperplasia with granulation tissue, and also had grassery juice; after taken anti-inflammatory drug and change bandage for 15 weeks, the symptom disappear. 1 case had grassery juice of operation cavity, after taking anti-inflammatory drug and physiotherapy, the symptom disappear in 24 weeks. After operation the pure tone audiometry shows that air conduction raise (16.8±6.8) dB HL, hearing raise up to:79.1%(34/43). Conclusion Base on right indication of operation choose, taken combined therapy of ambi-operation period, focus of infection are thoroughly cleaning up. Tympanoplastic with osteo retention are treating well with patients of cholesteatomatous otitismedis.

ObjectiveTo build the computer-aided diagnosis system of left ventricular diastolic function for echocardiography,to make the evaluation process of left ventricular diastolic function for echocardiography more convenient,efficient,standardized and to obtain more accurate,practical,objective and reliable diagnostic results.MethodsFirst,the system was developed by the Macromedia Flash Professional referred to the newest guidelines and suggestions published by the American Society of Echocardiography(ASE) in 2009.Second,the program of left ventricular diastolic function in the computer- aided diagnosis system was designed,debugged and improved according to feedback information frompractical applications.ResultsThe diagnostic system can work simultaneously with echocardiography.If assessment parameters of the newest guidelines and suggestions,published by the American Society of Echocardiography in 2009,are imported to the system,then it can give the diagnosis of the change about the left ventricle filling pressures and score the left ventricular diastolic function quickly and automatically.The system will export standard report with both pictures and text.ConclusionsAccording to our experiment,the computer-aided diagnosis system is able to make the evaluation process of left ventricular diastolic function much more standardized and simplified,which guarantee the objectivity and reliability of the evaluation results.Consequently,it will be able to apply to clinical practice in the future.

Objective To investigate the prevalence rate of healthcare-associated infection(HAI)in a hospital,so as to provide reference for making HAI control measures.Methods The cross-sectional survey on HAI was carried out among all hospitalized patients on May 26,2010,December 12,2012 and December 4,2013,respectively,sur-veyed data were analyzed.Results The prevalence rate was 6.66%(n =116),6.67%(n =113)and 6.33%(n =120)in 2010,2012 and 2013 respectively,and case rate was 7.29%(n=127),7.38%(n=125)and 6.97%(n=132) respectively,intensive care unit(ICU )had the highest infection rate,internal medicine ICU was up to 71 .43%. The main infection site was lower respiratory tract(44.53%),followed by surgical site infection (9.11 %)and uri-nary tract infection (9.11 %).The isolation rate of gram-negative bacteria,gram-positive bacteria and fungi was 60.81 %,20.38% and 18.81 % respectively.Usage rate of antimicrobial agents in three years was 32.95%, 29.87% and 25.59% respectively (χ2 = 13.16,P <0.01 ).Conclusion Prevalence rate of HAI in this hospital is high ,the main pathogen is gram-negative bacteria,the main infection site is lower respiratory tract ,antimicrobial use decreased year by year.Monitor on high risk departments,main sites and pathogens should be intensified.

Objective: To investigate the effect of moxibustion on telomerase activity and genes expression in tissues of senescent rats. Methods: Subacute aging rats model were established by injection with D-gal solution. Points Shenshu (BL 23) were treated with moxibustion in treatment group, contrasting with a model group and a normal group. Enzyme-Linked Immunosorbent Assays(ELISA) was used for the level oftelomerase activity in liver tissues, and In Situ Hybridization(ISH) was used for the condition of expression of telomerase genes in liver tissues. Results: The level of telomerase activity in the aging model group was obviously lower than that in normal control group (P＜0.01), the level in moxibustion group was obviously higher than that in model group(P＜0.05). In comparison with normal rats, the positive-expressed areas and photodensity of telomerase genes in aging model group were all significantly lower (P＜0.01,P＜0.01), and the positive-expressed areas in moxibustion group was significantly higher than that in model group (P＜0.01). Conclusions: Moxibustion could regulate telomerase activity of senile rats, hence delaying aging.

Objective To evaluate the feasibility and clinical value of endoscopic decompression with metal stent and colorectal tube for acute malignant colorectal obstruction. Methods With the aid of fluoroscopy, 26 cases with acute malignant colorectal obstruction were treated. Their obstructive sites consisted of rectum(n=14), sigmoid colon(n=8), descending colon(n=2) and transverse colon(n=1). Results In 18 of 26 patients, metal stents were successfully inserted (18/20, 90%), in 6 cases colorectal tube were successfully inserted(6/6, 100%), the total technical success rate was 92. 3% (24/26). Thereafter, 1 patient has no effect, 23 patients showed relief of obstructive symptoms within 1-2 days, the clinical success rate was 88.5% (23/26). Permanent metal stent placements were performed in 13 cases for palliative treatment, 10 underwent subsequent elective surgical resection after 7 ~ 10 days, without complications, such as anastomotic leakage and intraperitoneal infection. One case was failed in recurrent rectal carcinoma after resection, one case with widespread metastatic sigmoid colon carcinoma occurred colon perforation and received immediate Hartmann operation. Recurrent obstruction was detected in one patient with distal stent migration within 6 weeks, and second stent were placed to solve the problems. Stent occlusion from stool impaction was found in one patient 1 month after stent insertion, and was solved by endoscpic interventions. Conclusion Endoscopic decompression with metal stent and colorectal tube can alleviate the acute malignant colorectal obstructive sympotoms with high success rate. It is a simple, safe, effective and well tolerated method, and can obviate colostomy, prominently reduce trauma and agony, and increase the living quality of patients.

Objective To research the protective effects of totalPanax Japonicus extract on learning memory, antioxidation, and anti-apoptosis of aging mice,and explore the mechanism. Methods Male mice were randomly divided into normal group, model group, Vitamin E (VE) group, Panax Japonicus extract low and high dose group. Except for the normal group, the other groups were injected withD-gal on the back of the neck subcutaneously to establish aging model. Normal group and model group were given a gavage with saline and each treatment group was given a gavage with totalPanax Japonicus extract and VE once a day for 7 weeks after the aging model established. All mice were be measured their learning and memory ability in the eighth week. After the test, the morphological changes of CA1 neurons were observed by HE stain. SOD, GSH-Px, MDA levels in brain tissue were measured by biochemical method, the expressions of Bcl-2 and Bax mRNA were evaluated by RT-PCR.Results Mice inPanax Japonicus extract low and high dose group could spend less time in searching for the platform, improve the learning and memory ability. TotalPanax Japonicus extract increased the activity of SOD and GSH-Px, while decreased the content of MDA. In addition, it could increase the expression level of Bcl-2 mRNA and reduce the expression level of Bax mRNA as well.Conclusion TotalPanax Japonicus extract has anti-aging effect.