Objective To explore the application of association rules with Constraints in medical data analysis.Methods Constraints were applied in mining association rules of medical data by analyzing the characteristics of the data.An effective algorithm for mining association rules with constraints from medical data called CAMD was developed.The algorithm was applied to the analysis ofcoronary heart disease dataset.Results Assigning minimum support and minimum confidence as 0.20 and 0.60,respectively,with data from 303 cases of coronary heart dieses analyzed,8 association rules were tained.Crrelations between age,sex,electrocardiograph results,pathogeny and diagnosis of coronary heart disease were discovered.Conclusion Results from our experiments show that CAMD scans the database fewer times and has no need of pruning candidate itemsets.Thus,it greatly decrease the amount of useless rules produced and rapidly discover interesting association rules of medical data.

Objective To evaluate the effect of indomethacin in the prevention of post ERCP pancreatitis (PEP) .Methods The literatures and corresponding references of randomized controlled trials (RCT ) on indomethacin in the prevention of PEP were searched from Cochrane Library (Jan 1970 to June 2013) ,Pubmed(Jan 1966 to June 2013) ,EMBASE(Jan 1966 to June 2013)and China Biology Medicine disc(Jan 1978 to June 2013) .Literature screening ,data extraction and methodological quality assessment were individually performed by two researchers .The software RevMan 5 .2 of Cochrane Collaboration was used for statistical analy‐sis .Results A total of 7 trails ,2170 patients were included in this study .Meta analysis results showed:indomethacin could effec‐tively prevent from PEP (RR=0 .45 ,95% CI:0 .33-0 .60 ,P<0 .05) and Hyperamylasemia (RR=0 .51 ,95% CI:0 .37-0 .70 ,P<0 .05) compared with placebo ,and could effectively alleviate the severity of pancreatitis after ERCP (RR=0 .43 ,95% CI:0 .23 -0 .78 ,P<0 .05) .Conclusion Indomethacin could effectively prevent from PEP and Hyperamylasemia ,and could effectively alleviate the severity of PEP .

Objective To investigate the effect of salvia Miltiorrhiza on the patients with chronic allograft nephropathy.Method 20 cases were treated by the combination of salvia miltiorrhiza and routine anti-rejection therapy.Results The effect of the combination in salvia group was better than that in the control group .The significant difference was found between the two groups of the patients (P

Objective To explore the application effect of the model of clinical nursing path management in clinical nursing. Methods A comparative study was conducted of the clinical nursing paths respectively with regard to patients who had received thyroid adenoma resection and with regard to patients who had received hysteromyomectomy. Results In the experimental group involving clinical nursing path management, the average length of stay was shortened, pre operation days were reduced, and the average hospitalization expenses were lowered while the satisfaction rate of patients with thyroid adenoma rose by 2.18%, reaching 98.96% and that of patients with hysteromyoma rose by 2.87%, reaching 99.55%. At the same time, clinical nursing path management also enhanced the job satisfaction of nurses. Conclusion It is viable to adopt the model of clinical nursing path management in clinical nursing in China.

Humans ; Lymphocytes ; cytology ; drug effects ; Micronucleus Tests ; Occupational Exposure ; prevention & control ; Polycyclic Aromatic Hydrocarbons ; toxicity ; Population Surveillance ; methods

OBJECTIVE:To study the effects of carbamylated erythropoietin(CEPO)on cardiovascular microcirculation in rats with diabetes mellitus. METHODS:Rats were randomly divided into blank control group,model group,CEPO low-dose,medi-um-dose and high-dose groups(500,1 000,2 000 u/kg)with 12 in each group. The rats in the last 4 groups were reduced diabetes mellitus model. All rats were given relevant medicine intragastrically twice a week,coronary microcirculation endothelial cells were separated after consecutive 4 weeks. Enzyme-linked immunosorbent assay was conducted to detect levels of peripheral serum prosta-cyclin (PGI2),vasoconstrictor endothelin-1 (ET-1),angiotensin Ⅱ(AngⅡ) and von Willebrand factor (vWF) of rats in each group;in vitro CCK 8 test was used to detect endothelial cell activity(OD value);real-time quantitative polymerase chain reaction was adopted to detect proliferation-related genes(Ki67,p16),poptosis-related genes(Bad,Bax),and expressions of protein vas-cular endothelial growth factor(VEGF)and AngⅠ. RESULTS:Compared with blank control group,levels of PGI2,ET-1,AngⅡand vWF in serum in model group increased;OD value deceased;Ki67,p16,Bax and VEGF expression decreased;the difference was statistically significant (P<0.05). Compared with model group,levels of PGI2,ET-1,AngⅡ and vWF in serum in CEPO low-dose,medium-dose and high-dose groups increased;OD value increased;Ki67,p16 and VEGF expression increased;expres-sions of Bad and Bax decreased;the difference was statistically significant(P<0.05). The others had no significant difference(P>0.05). CONCLUSIONS:CEPO maybe improve the coronary microcirculation function by upregulating VEGF expression in coro-nary microcirculation endothelial cells and promoting endothelial cells’regeneration.

Objective We tried to explore the effects of organ donation intervention on organ donation knowledge,attitude and willingness of community residents and analyze its promotive factors,thereby to provide valuable basis to increase organ donation rate.Methods 354 community residents in Hengyang city of Hunan province were randomly collected and received organ donation intervention.The scores of organ donation knowledge,attitude and willingness,living organ (bone marrow and kidney) donation willingness rate,and supporting relative organ donation status were compared before and after intervention.We also investigated the factors that could enhance organ donation.Results In comparison with before intervention,organ donation knowledge and willingness scores(t value was 4.46 and 5.13),bone marrow donation willingness rate (x2 value was 9.27) and supporting relative organ donation proportion(x2 value was 10.74) were increased,but organ donation attitude score was decreased in community residents.However,organ donation intervention had no effect on kidney donation willingness rate.Community residents recognized that economic compensation (43.68％),organ distributing fair (23.85％) and consummate organ donation regime (11.21％) were the most important to facilitate organ donation.Conclusions Organ donaton intervention can notably improve organ donation knowledge,attitude and willingness of community residents.Moreover,giving determinate economic compensation,ensuring organ distributing fair and ameliorating organ donation regime may play key roles in relieving current organ shortage crisis.

Objective To investigate the therapeutical effect and mechanism of tiotropium bromide in patients with stable phase midrange and severe chronic obstructive pulmonary disease (COPD). Methods Seventy-eight patients with stable phase midrange and severe COPD were selected, and they were divided into observation group (40 cases) and control group (38 cases) according to treatment method. All patients were given conventional treatment. The patients in observation group were given tiotropium bromide, and the patients in control group were given terbutaline according to the needs for 12 weeks. The changes of dyspnea, 6 min walking distance, pulmonary function, leukotrienes C4 (LTC4), interleukin-8 (IL-8), tumor necrosis factor-alpha (TNF-ɑ) before and after treatment, and drug adverse reaction were observed. Results The dyspnea score after treatment in observation group was significantly lower than that in control group:(2.9±0.5) scores vs. (3.5±0.7) scores, 6 min walking distance in observation group was significantly longer than that in control group: (427.67±70.36) m vs. (365.41±61.42) m, forced expired volume in 1 second (FEV1) and FEV1/forced vital capacity in observation group were significantly higher than those in control group:(1.76±0.89) L vs. (1.29±0.53) L and (67.43±9.52)%vs. (56.32±8.51)%, LTC4, IL-8 and TNF-αlevels in observation group were significantly lower than those in control group: (397.41± 198.57)μg/L vs. (1 181.95±207.54)μg/L, (434.81±176.05) ng/L vs. (823.37±165.43) ng/L and (0.15±0.02) ng/L vs. (0.25 ±0.02) ng/L, there were significant differences ( P<0.01). Pearson correlation analysis result showed that serum LTC4 level was negatively related to FEV 1 (r=-0.578, P=0.024);and the serum IL-8 level was negatively related to FEV1 (r=-0.542, P=0.019). There was no obvious drug adverse reaction in the two groups. Conclusions Tiotropium bromide can significantly improve the clinical manifestations in patients with COPD. Tiotropium bromide may take effects by blocking various inflammatory factors release in the stable phase of COPD.

BACKGROUND:The mechanical environment of skin tissue and spreading state of epithelial cels are closely related with the wound healing and scar formation process. OBJECTIVE:To analyze the effect of extracelular mechanical stimulation on cel spreading, to test the cel proliferation in order to analyze the effect of spreading form on cel proliferation and other physiological activities. METHODS: Cyclic sine wave mechanical stretching was exerted on immortalized human keratinocyte by using FX-4000 flexible substrate loading system, on the condition of 0.2 Hz and at frequency of 10% amplitudes. The spreading form was compared at 0, 24 and 48 hours, the cel proliferation was analyzed with flow cytometry, and the distribution of vinculin was analyzed with immunofluorescence staining. RESULTS AND CONCLUSION: human keratinocyte would keep the spreading state and could induce more cel proliferation by 24 hours mechanical stretching stimulation. Conversely, after stimulated for 48 hours, the morphology of the human keratinocyte was significantly changed, and the number of human keratinocyte in the division stage was larger than that in the static control group; under tensile stress, the distribution of vinculin was transformed from the surrounding nucleus membrane area to the cel edge. The results indicate that proper mechanical stimulate can increase cel proliferation with keeping cel spreading and adhesion state; the stimulating time of continuous cyclic stretching is the major factor to determine cel spreading morphology and adhesion regions of immortalized human keratinocyte.