Objective To investigate the relationship between aging-expectation and leisure-time physical activity among the old adults.Methods Structural interviews were administered to 550 old adults using the Godin Leisure-Time Exercise Questionnaire, Expectation Regarding Aging-12 (WHO-DAS 2.0), Activity of Daily Life-8, and the Geriatric Depression Scale-5.Results There was only 16％ of the old adults whose leisure-time physical activities met the WHO global recommendations.The level of cognitive function expectation was still significant in the regression models statistically even after adjusting the social characteristics,mental health status, and physical function successively (OR=1.024,95％ CI=1.005-1.043;OR=1.024,95％ CI=1.005-1.043;OR=1.029,95％ CI =1.009-1.050, respectively), and both of physical health expectation and mental health expectation were not significant in the three models.Conclusion The leisure-time physical activity of the majority old adults doesn't achieve the WHO global recommendations.Improving the cognitive function expectation of the old adults would be one of the valuable approaches to promote the leisure-time physical activity engagement.

OBJECTIVETo explore the advantages of minimally invasive expandable in surgery of lumbar discectomy and interbody fusion and internal fixation.

METHODSThe clinical data of 48 patients who underwent lumbar discectomy and interbody fusion and internal fixation from January 2010 to March 2016 was retrospectively analyzed. According to the admission queue, the patients were randomly assigned into channel group (26 cases) or traditional group (22 cases). In channel group, surgical approach of minimally invasive expandable channel was applied, and in traditional group, open posterior operation approach (including posterior lumbar interbody fusion and transforaminal lumbar interbody fusion, etc.) was applied. In channel group, there were 20 males and 6 females, aged from 43 to 74 years with an average of(56.6±5.1) years; course of disease was ranged from 4 to 22 months with an average of (6.7±1.8) months; 1 case was complicated with diabetes, 6 cases were complicated with hypertensive disease, and 2 cases were complicated with arrhythmia. In traditional group, there were 15 males and 7 females, aged from 43 to 73 years with an average of(55.9±4.6) years; course of disease was ranged from 4 to 26 months with an average of (6.2±2.1) months; 2 cases were complicated with diabetes, 5 cases were complicated with hypertensive disease, and 1 case was complicated with arrhythmia. Operation time, bleeding volume, and hospitalization time were compared between two groups and visual analogue scale(VAS), Oswestry Disability Index(ODI), bone fusion information, and complications correlated with incision were observed in two groups.

RESULTSAll 48 patients were followed up for more than 6 months. Postoperative VAS and ODI were significantly improved (<0.01), but 3 and 6 months after operation, there was no significant difference in VAS between two groups, and ODI score of channel group was lower than that of traditional group(<0.01). Operation time, bleeding volume, hospitalization time in channel group respectively were (167.3±30.2) min, (786.8±147.8) ml, (12.3±2.4) d, and in traditional group were (197.5±48.7) min, (786.8±147.8) ml, (16.5±3.8) d, there was significant differences between two groups. There was no significant difference in fusion rate and fusion time between two groups. There were 4 cases and 7 cases developed incision related complications in channel group and traditional group, respectively. The difference between two groups was significant(<0.01).

CONCLUSIONSCompared with conventional surgery minimally invasive lumbar discectomy and interbody fusion and internal fixation has advantages of less trauma, shorter operative time and better functional recovery.

ObjectiveTo analyze the epidemiological characteristics of pathogens in foodborne disease cases in Haining City， Zhejiang Province， and to provide a basis for the prevention and investigation of foodborne diseases and outbreak events. MethodsInformation on foodborne disease patients from 2014 to 2023 was collected， and stool or anal swab samples were tested for relevant pathogens. The χ² test was used to compare the differences in pathogen detection rates among different groups， and multivariate logistic regression analysis was used to analyze the risk factors for pathogen detection. ResultsA total of 5 814 samples were tested， with a positive detection rate of 15.36%. The detection rates were 4.95% for norovirus， 4.49% for Escherichia coli， 3.59% for Salmonella， 2.22% for Vibrio parahaemolyticus， and 0.11% for Shigella. The positive detection rates showed seasonal characteristics， with a minor peak in March-April dominated by norovirus and a major peak in July-September dominated by bacteria. The three groups with the highest detection rates were workers， white-collar workers and other groups. Multivariate logistic regression analysis showed that age， season， and antibiotic use before consultation were significant influencing factors for pathogen detection （P<0.05）. Total pathogen detection risk was lower in the group that took antibiotics before visiting the clinic compared to those who did not （OR=0.29， 95%CI： 0.15‒0.49）. The detection risk for norovirus was lower in the preschool age group （OR=0.19， 95%CI： 0.04‒1.00）， in summer and autumn （OR range 0.23‒0.41）， and in the group taking antibiotics （OR=0.42， 95%CI： 0.15‒0.92）， but higher in the adolescent group （OR=1.40， 95%CI： 1.05‒1.88）. The detection risk for enteropathogenic Escherichia coli was higher in summer （OR=1.82， 95%CI： 1.30‒2.60）. The detection risk for Salmonella increased in the elderly group and in summer （OR range 1.44‒2.21）， but decreased in the adolescent group， in winter， and in the group taking antibiotics （OR range 0.22‒0.65）. The detection risk for Vibrio parahaemolyticus increased in summer and autumn （OR range 1.80‒1.90）， but decreased in the primary and secondary school student group and in winter （OR range 0.10‒0.32）. ConclusionThe prevalence of foodborne disease pathogens in Haining City is relatively high. Age， season， and antibiotic use before consultation are independent influencing factors for pathogen detection. These findings suggest that specific hypotheses regarding pathogenic factors can be proposed based on the time of occurrence and the age distribution of cases during field investigations of foodborne outbreaks.

Objective To translate and evaluate the reliability and validity of Chinese version of Nursing Student Self-Efficacy Scale.Methods A total of 212 nursing students in practice were recruited and completed the questionnaire survey including Chinese version of Nursing Student Self-Efficacy Scale and General Self-Efficacy Scale.Results The fitness of confirmatory factor analysis neither in intersectant model nor in orthogonal model were not good.Chinese revised version of Nursing Student Self-Efficacy Scale was formed based on the exploratory factor analysis.The three factors could explain 67.7％ variance of self-efficacy and the loading of all items was above 0.6.The correlation coefficient between the total score and three factors of revised NSSES and GSES was 0.570,0.427,0.582,and 0.480 respectively.The fitness of revised NSSES confirmatory factor of intersectant model,orthogonal model,and modified intersectant model were also not satisfying.Conclusions Although the reliability and the criterion-related validity of revised Chinese version of Nursing Student Self-Efficacy Scale were satisfying,the construct validity was not good and the further revision concerning on the task description and item response grade was required before applying for the internal measurement.

Objective To study the relationship between the apolipoprotein B(apo B) gene polymorphism and mycoardial infarction.Methods Two polymorphic sites of the apo B gene,Xba1 and Msp1 were examined by PCR in a sample of 65 patients with myocardial infarction(MI) and 60 healthy individuals selected from a population of the chinese Han nationality.Results The frequency of X+allele(presence of Xba1 cutting site)in MI cases was significantly higher than that in controls(P

objective To construct the recombinant adenovirus containing p53 up-regulated modulator of apoptosis(Ad-PUMA)and investigate its growth inhibition effect on pancreatic callCer cells in vitro and in vivo.Methodls Ad-Easy system was used to construct Ad-PUMA by recombination in E.coli.The virus was Dackaged in 293 cells and subsequently identified valid.The AsPC-1 cells were infected with AdPUMA.Before and after Ad-PUMA infection,the expression of PUMA protein wag investigated by western blot,the inhibition rate of AsPC-1 cells was examined by MTY assay.The in vivo tumor suppressive effect was detected in nude mice with human AsPC-1 xenograft.PUMA protein and the apoptosis of AsPC-1 xenograft were detected by western blot and TUNEL(terminal deoxynucleotidyl transferase biotin-dUTP nick end labeling)method.Results In vitro,the expression of PUMA protein was increased with titer of Ad-PUMA,the proliferation of AsPC.1 cells were suppressed,significantly,and the effect was in a viral dose-dependent nlanner.In vivo,the growth in nude mice of AsPC-1 infected with Ad-PUMA was significantly inhibited with an inhibition rate of 44.2%.The expression of PUMA was significantly up-regulated,and the apoptosis index wa8 significantiv increased in tumor after Ad-PUMA infection as determined by western blot and TUNEL.Conclusion The expression of PUMA call inhibit the proliferation of pancreatic cancer in vitro and in vivo,and may be used 88 a potential tool for cancer therapy

Objective To compare and evaluate the differences of potentialities, biological characteristics and results between periosteum transplant, cartilage transplant and subchondral bone drilling in repairing full-thickness defects of articular cartilage in weight-bearing joints, for the purpose of proposing the experimental basis for clinical application. Methods By using the repeated measure design of Latin Square, 32 adult male rabbits were divided into groups randomly based on three factors and four levels. Autologous periosteum transplant, allogenic cartilage transplant and subchondral bone drilling were applied for repairing of size-matched, full-thickness articular cartilage defects on the femoral condyle of the knees. The reconstructed tissues were observed by gross, optical and electronic microscopic view and analysed morphologically at 2, 4, 8, 12 weeks respectively. Results All of these three methods could repair the lesions by hyaline-like cartilage at 12 weeks, while the control groups were filled with fibrous tissue. The height of the repairing tissue compared with the normal cartilage and the light density data indicated that the cartilage transplant groups were better than others; periosteum transplant and bone drilling groups were better than the control groups as well. No evidence of immune rejection was observed. Based on the statistical analysis, the lesion size was not a significantly important factor for the repair. While the time was in a contrary way. Conclusion Autologous periosteum transplant, allogenic cartilage transplant and subchondral bone drilling are feasible for repairing of the full-thickness articular cartilage defects. These methods are beneficial options for clinical application, among which cartilage transplant is the best. The reconstructed tissue of subchondral bone drilling is insufficient for bigger defects.

BACKGROUND:Excessive mechanical stimulation can lead to endoplasmic reticulum stress. Endoplasmic reticulum stress plays an important role in the occurrence and development of degenerative diseases. Caspase-12 is a specific molecule of endoplasmic reticulum stress, and the intensity of endoplasmic reticulum stress can be reflected by caspase-12 expression. OBJECTIVE:To observe the expression rule of Caspase-12 in chondrocytes under the cyclic tensile stress. METHODS:Human chondrocytes were used as test subjects. After group assignment, mechanical loading system was used. The loading group and corresponding Z-ATAD-FMK inhibitor group received 2, 12, 24, 36, and 48 hours of mechanical stimulation. The blank group (0 hour) and the paired Z-ATAD-FMK inhibitor group received the same process as the loading group except the loading. After loading, cel morphology and growth were observed under the microscope. RT-PCR and western blot assay were used to detect the expression changes of caspase-12 gene and protein in each group. RESULTS AND CONCLUSION:(1) Morphological observation results demonstrated that apoptosis appeared at 2 hours after loading, peaked at 24 hours. With prolonged time, cel growth showed the trend along stress, but apoptosis weakened. It is indicated that cyclic tensile stress could make chondrocyte apoptosis. Endoplasmic reticulum stress might be activated. The model of cel s in vitro was established successful y. (2) Caspase-12 gene and protein expression showed consistent trend, and peaked at 24 hours, which showed significant differences as compared with the blank and inhibitor groups (P<0.05). (3) Cyclic tensile stress can induce chondrocyte endoplasmic reticulum stress, and affect caspase-12 expression.

This paper analyses overall situation of the national quality inspection for medical devices in recent 13 years. The statistics cover the inspected varieties, sampling quantity and quality status. The achievements and suggestions are provided, which are helpful for future work.
Equipment and Supplies ; standards ; Humans

ObjectiveTo assess the reliability and validity of Chinese version of tools in measuring yangsheng.MethodsChinese version of tools in measuring yangsheng was administered to 706 elderly citizens and evaluated for the reliability and validity.ResultsThe fittingness of the both exiting model were unidentified.A model of six factors and twenty-six items was determined using exploratory factor analysis.The fitness of such model was perfect ( RMSEA =0.050,AGFI =0.871,GFI =0.902,NFI =0.903,CFI =0.953 ) and all the construct reliability were more than 0.6 while the average variance extracted were higher than 0.5 except the diet yangsheng factor.The Cronbach's α of Chinese version of tools in measuring yangsheng was 0.918 and Cronbach's α of factors were all above 0.7.ConclusionThe Chinese version of tools in measuring yangsheng appears to have good validity and reliability to estimate the Yangsheng of elderly citizens in China.