The cytochemical method of Ca-ATPase activity was studied in this article. The native made reagent was utilized and worked in our department, The appearance of Ca-ATPase activity was researched for the cells of hepar, kidney, brain and oviduet, especially for the membrane system of myocardium cell.

Objective To investigate the occurrence and risk factors of surgical site infection(SSI)in patients with colon or rectal cancer.Methods Patients who were diagnosed with colon or rectal cancer and underwent emergency or elective surgery in a hospital between January 1,2008 and December 31,2013 were monitored prospectively.General data,operation condition,and antimicrobial use of patients were analyzed,occurrence of SSI was observed every day and followed up after operation,risk factors of SSI were analyzed by univariate and multivariate analysis.Results A total of 694 patients with colon cancer(n=380)or rectal cancer(n=314)were monitored,SSI occurred in 125 patients,including 15 incisional infection and 110 organ/space infection,incidence of SSI was 18.01%;incidence of SSI in colon cancer patients and rectal cancer patients were 17.11%(65/380)and 19.11%(60/314)respectively.Univariate analysis showed that among colon cancer patients,incidence of SSI was higher in those with co-infection of other sites during perioperative period,underlying diseases,phase Ⅰcancer,and relaxation suture(all P<0.05);among rectal cancer patients,incidence of SSI was higher in those with co-infection of other sites during perioperative period,underlying diseases,obstruction,operation time>2 hours,stoma,drainage,relaxation suture,rinsing during operation,and use of antimicrobial agents>72 hours(all P<0.05);logistic regression analysis showed that the independent risk factors for SSI in colon cancer patients were underlying disease,co-infection of other sites during perioperative period,and relaxation suture(all P<0.05);independent risk factors for SSI in rectal cancer patients were underlying disease,co-infection of other sites during perioperative period,and stoma(all P<0.05).Conclusion Prevention and control measures should be taken according to risk factors of SSI in patients undergoing colon cancer and rectal cancer surgery,especially those who with chronic underlying diseases and other site infection during perioperative period;in addition,patients with colon or rectal cancer should also pay attention to relaxation suture and stoma respectively.

Objective Sarcopenia and metabolic syndrome share similar pathophysiological mechanisms. The aim of this study was to investigate the prevalence of sarcopenia among health examination population, and to analyze the relationship between sar-copenia and blood pressure, blood glucose, uric acid and lipids. Methods Physical examination data of 1191 healthy persons in the medical examination center of the hospital from Mar 2011 to Jun 2011 were collected. The weight, skeletal muscle, body fat, body mass index ( BMI) , waist circumference,body fat percentage, waist-hip ratio and visceral fat area were analyzed by human body compositionanalyzer and the prevalence of sarcopenia was observed. At the same time, triglyceride (TG), total cholesterol (TC), high density lipo-protein-cholesterol ( HDL-C ) , low density lipoprotein-cholesterol ( LDL-C) , uric acid and fasting blood glucose were also detected. Results The prevalence rate of sarcopenia of the subjects was 5.21%, and the highest incidence was found in ≥60 years group( 11.11%) . The prevalence rates of overweight and obesity were 33.8% and 10.2%, respectively. The prevalence of sarcopenia is grad-ually higher along with increasing BMI. The prevalence rates of sarcopenia of overweight and obesity subjects were 5.47% and 26.23%, respectively. Compared with the normal control group, the level of weight[(66.34±11.75)kg vs (76.71±12.84)kg ], BMI[(23.37± 3.13) vs (28.05±3.66)], body fat percentage[(25.33±6.06)% vs (36.76±4.47)%], waist circumference[(83.19±9.56)cm vs (95.45±13.74)cm] and visceral fat area[(88.96±29.74)cm2 vs (136.91±25.56)cm2] were higher in the sarcopenia group (P<0.05). Compared with the normal control group, the incidence of systolic blood pressure[(125.59±30.04)mmHg vs (139.39±19.79) mmHg], diastolic blood pressure[(75.82±11.95)mmHg vs (82.34±10.96)mmHg ] TG[(1.56±1.12)mmol/L vs (1.98±1.72)mmol/L] and uric acid[(313.75±83.07)mmol/L vs (335.55±96.07)mmol/L] were higher in the sarcopenia group (P<0.05). Compared with the normal subjects, the detectable rates of abnormal diastolic blood pressure, fasting blood glucose, uric acid, and LDL-C were increased in the sarcopenia, obesity and sarcopenia combined with obesity subjects (P<0.05). The odds ratio of abnormal systolic blood pressure, diastolic blood pressure, uric acid, and LDL-C increased in the sarcopenia, obesity and sarcopenia combined with obe-sity subjects using logistic regression analyses after correction of gender and age. Conclusion The sarcopenia may have some con-nection with metabolic risk factors. Early detection of sarcopenia can help to distinguish people predisposed to metabolic syndrome, and it has important significance for prevention of chronic disease.

Objective:To detect the expression of tumor necrosis factor alpha in (TNF alpha) breast cacner and its relationship with imaging features.Methods:Using immunofluorescence and flow cytometry to detect the expression of TNF-α in MDA-MB-231 and MCF-7.Collect 82 patients with mammary gland disease,which was confirmed by pathological tissue,its pathological data,imaging data,and by immunohistochemistry to detect the expression of TNF-α in breast tissues,and analyze and the relationship between its expression and the pathological features and imaging characteristics.Results:TNF-α high expression in MDA-MB-231,the expression of TNF-oα in malignant breast tumor tissue significantly higher than that in benign tumor,the expression quantity associated with lymph node metastasis,TNM stages,strengthen uniform in MRI,the boundary and the shape of the X-ray Mammography (P=0.01),and color flow signal strength in ultrasound (P＜0.05).Conclusions:TNF alpha in breast tumor tissue was unusually high expression,and is closely related to some of the imaging features of breast tumor.

Acute lung injury/acute respiratory distress syndrome (ALI/ARDS) is an inflammatory lung injury induced by a variety of factors, and these diseases are associated with high rates of mortality due to the lack of effective treatments. Based on the latest research in ALI/ARDS, it is widely accepted that generalized inflammatory responses play a critical role in initiating and developing process of ALI/ARDS. We make a brief review on the immune-pathogenesis and the signaling pathways of ALI/ARDS from the perspective of inflammation, thereby helping develop novel therapeutic strategy for treatment of patients with ALI/ARDS.

Objective To investigte the association between haplotype of the promoter of interleukin-22 (IL-22) gene and the susceptibility to pulmonary tuberculosis.Methods Clinical data of 479 patients with pulmonary tuberculosis was collected from Shenzhen Third People's Hospital during January 2009 and December 2010,and 358 healthy controls were also enrolled in the study.Single nucleotide polymorphisms (SNPs) of IL-22 (rs2227472,rs2227473,rs2227478,rs2227483,rs2227485,rs2227486,rs2227487 and rs2227513) were genotyped using the Sequenom MassARRAY iPLEX Platform.The allele frequency and odds ratio (OR) of genotypes of SNPs and haplotypes of IL-22 were calculated; the association between the haplotypes of IL-22 and the susceptibility to pulmonary tuberculosis was analysis.Results rs2227472,rs2227473,rs2227478,rs2227483 and rs2227485 were associated with the susceptibility to tuberculosis (OR =0.796,0.653,0.769,0.762 and 0.816 ; x2 =4.594,6.921,5.256,5.089 and 3.827 ; P ＜0.05 or P ＜ 0.01).The frequencies of haplotypes (CTFAA and TATGG) in case group were significantly different from those in control group (CTFAA:0.004 vs.O.032,OR =0.04,x2 =384.623,P＜0.01; TATGG:0.522 vs.0.460,OR=1.49,x2 =6.690,P=0.01).Conclusions Five SNPs of IL-22 (rs2227472,rs2227473,rs2227478,rs2227483,rs2227485) and 2 haplotypes (CTTAA and TATGG) are associated with the susceptibility to pulmonary tuberculosis.Haplotype CTTAA is a protective factor for susceptibility to pulmonary tuberculosis,whereas haplotype TATGG is a risk factor.

BACKGROUND:Previous studies have found that electroacupuncture can delay articular cartilage degeneration mediated by JAK-STAT signaling pathway through upregulating the expression level of transforming growth factor β1 as well as mRNA expression levels of STAT3, Smad3 and LepR. In the meanwhile, electroacupuncture can inhibit the mRNA expression of p38 and Fas mRNA mediated by MAPK signaling pathways, further inhibiting the apoptosis of chondrocytes. OBJECTIVE: To explore the effect of electroacupuncture on the degeneration of articular cartilage in rats with knee osteoarthritis based on Ras-Raf-MEK1/2-ERK1/2 signaling pathway. METHODS:120 male healthy Sprague-Dawley rats aged 2 months olds were selected and randomly divided into normal, model, 15-minite electroacupuncture and 30-minute electroacupuncture groups (n=30 per group). The rats in the latter three groups received the intra-articular injection of 4% papain bilaterally, and the remaining rats received no intervention. At 2 weeks after modeling, the latter two groups were respectively given 15- and 30-minute electroacupuncture, five times weekly for consecutive 12 weeks. The morphology of the cartilage was observed by hematoxylin-eosin staining, the expression level of interleukin-1β in the synovium was detected by ELISA assay, and the protein expression levels of Ras, Raf, MEK1/2, ERK1/2, C-MYC, C-FOS, and C-JUN were detected by western blot analysis. RESULTS AND CONCLUSION: Hematoxylin-eosin staining showed that: in the model group, the cartilage surface was rough, the cartilage layer became thinner, and the cartilage structure was damaged with incomplete tidal line; in the 15- and 30-minute electroacupuncture groups, the cartilage structure was complete with clear layers and complete tidal line. ELISA showed that the expression level of interleukin-1β in the model group was significantly higher than that in the normal group (P< 0.01), and the level in the 15- and 30-minute electroacupuncture groups was significantly lower than that in the model group (P < 0.05). Western blot assay found that compared with the normal group, the protein expression levels of Ras, Raf, MEK1/2, ERK1/2, C-MYC, C-FOS, and C-JUN were increased in the model group. However, all above protein levels except ERK1/2 in the 15- and 30-minute electroacupuncture groups were significantly lower than those in the model group (P < 0.01,P < 0.05). To conclude, electroacupuncture inhibits the degeneration of articular cartilage in osteoarthritisvia Ras-Raf-MEK1/2-ERK1/2 signaling pathway and downregulating the expression level of interleukin-1β.

Objective: To examine the longitudinal relationship between the prosocial behaviors and depressive symptoms in rural adolescents using a cross-lagged model,and to provide a reference for improving mental health of adolescents. Methods: Participants were junior school 372 students in grade seven recruited from a rural school in Anhui province, who filled the Strengths and Difficulties Questionnaire (SDQ) and a short version of Center for Epidemiological Survey Depression Scale (CESD-10) three times (once a year for 2 years),and the cross lag model is established. Results: Depressive symptoms(r=0.39-0.45) and prosocial behavior(r=0.43-0.46) of rural adolescents are relatively stable in junior middle school(P<0.01)；The depression score of adolescents in grade 9 was higher than that in grade 7 and 8(P<0.05) and girls’ depression score was higher than boys’ (F=7.94,P<0.01).The relationships between prosocial behaviors(T1, T2, T3) and depressive symptoms(T1, T2, T3) were all negatively correlated in rural adolescents(r=-0.23~-0.13, P<0.05). Depressive symptoms in T1 and T2 could negatively predict prosocial behaviors in T2 and T3, respectively (β T1-T2=-0.10, β T2-T3=-0.11, P<0.05), while prosocial behaviors in T2 could negatively predicted depressive symptoms in T3 (β=-0.14, P<0.05). Conclusion During the three years of junior high school, the depressive symptoms of rural adolescents negatively predicted prosocial behavior, and from the second to the third year of junior high school, prosocial behavior negatively predicted depressive symptoms.Community health workers should pay more attention on depressive symptoms of rural adolescents, which could be prevented and improved through prosocial behavioral intervention, including helping and sharing.

Objective To explore the cleaning status and cleaning quality of dental handpieces in various types of medical institutions in Suzhou City.Methods On October 26-31, 2015, dental clinics in the whole city were sampled according to cross-sectional survey and proportional sampling method, the cleaning quality of dental handpieces in each clinic was detected by ATP bioluminescence assay.Results 72 medical institutions, 201 handpieces, 402 samples in 10 administrative regions of the city were sampled, 42 samples was unqualified, unqualified rate was 10.45％, unqualified rate of cleaning of dental handpiece surface was higher than waterline of dental handpiece(17.91％ vs 2.99％, P<0.05).Cleaning quality of dental handpieces in different grades of medical institutions was different(P<0.05), tertiary medical institutions were all ualified, medical institutions without grade was 14.45％.According to the classification based on name of different medical institutions, cleaning quality of handpieces was statistically significant(P<0.05), cleaning efficacy of dental handpieces in department of stomatology of public hospitals was best(unqualified rate was 4.31％), while private dental clinics had the worst cleaning efficacy(unqualified rate was 13.81％).Conclusion Education and training of dental handpieces cleaning in the whole city should be strengthened, especially the management of cleaning of dental handpieces in low grade and private dental clinics.

Objective To understand the cleaning quality of dental handpieces in Suzhou City, analyze the relevant factors that influencing cleaning effect.Methods A cross-sectional study was performed with the proportional system sampling method, questionnaires were adopted to investigate the cleaning location, cleaning method and process of dental handpieces, the ATP fluorescence detection method was conducted to detect cleaning quality.Results In 10 administrative regions of this city, a total of 72 medical institutions were selected, 25 were public medical oral diagnosis and treatment institutions, 47 were private clinics.Cleaning effect of automatic handpiece cleaning machine was better than traditional manual cleaning (unqualified rate :3.95% vs 11.96%, P<0.05), unqualified rate of handpieces cleaned by cleaning personnel without inadequate knowledge was higher than that by personnel with adequate knowledge(14.88% vs 3.57%, P<0.05).Qualified rate of cleaning: different cleaning locations ranged from 5.00% to 11.23%, cleaning equipment was inadequate and sufficient 11.89% and 7.29% respectively, cleaning personnel were not designated and designated 12.16% and 9.83% respectively, but the difference were not statistically significant (all P>0.05).The quality of cleaning of handpieces could be improved if waiting time of cleaning ≤30 minutes, enzymes were used during cleaning, and purified water was used at the end rinse(all P<0.05);whether there was drying process and used lubricant, difference were both not significant.Conclusion Using automatic handpiece cleaning machine, cleaning personnel with adequate knowledge, cleaning waiting time ≤30 minutes, enzyme use during the cleaning process, and purified water use at the end rinse can improve the quality of cleaning of dental handpieces.