Objective: To study the periapical microleakage of the root canals filled with four kinds of sealers using two obturation techniques. Methods: Sixty-four extracted first maxillary premolars were randomly divided into four groups. All the root canals were prepared with Protaper rotary instruments and filled with two obturation techniques: warm vertical condensation and cold lateral condensation. Four kinds of sealers included: Cortisomol, nano-zinc oxide, Apexit and calcium hydroxide which were indivi-dually used for four groups. After the teeth were dyed for 7days with Indian ink, dyeing lines were measured with digital camera under steromicroscope to reflect the microleakage. Results: In cold lateral condensation groups, dyeing lines of calcium hydroxide group had an average length of (1.75?0.22) mm, which was significantly longer than that of Cortisomol group (1.40?0.15 mm) and nano-zinc oxide group [(1.56?0.25) mm, P0.05], which were significantly shorter than that of cold lateral condensation groups (P

Objective To analyze the incidence of malignant tumor in Shaoxing of Zhejiang Province in 2012.Methods Descriptive analysis was carried out based on our chronic disease monitoring information management system.Age-standardized incidence was calculated according to Chinese standard population in 1982 and the Segi's world population.Results The crude incidence of malignant tumor was 291.34/100 000,age-standardized rate by Chinese standard population (ASR China) and by world population was 137.29/100 000 or 176.72/100 000,respectively.The cumulative rate of the 0-74 years old group was 20.27％ and the cut rate of the 35-64 years old group was 301.49/100 000.Male crude incidence of cancer and ASR China were 330.46/100 000 and 149.28/100 000,respectively; for female,the figure was 251.93/ 100 000 and 124.79/100 000,respectively.The crude incidence and ASR China were 364.85/100 000 and 171.77/100 000 in urban area residents,and 277.86/100 000 and 130.93/100 000 for those living in rural areas.Age-specific incidence of the 0-29 years old group remained low,although the incidence was increased after 30 years old and reached the peak in the 80-84 years old group.The most common malignancy were lung cancer,gastric cancer,colorectal cancer,liver cancer,breast cancer,thyroid cancer,esophageal cancer,pancreatic cancer,cervical cancer and leukemia (76.77％).Conclusions Lung cancer,gastrointestinal cancer and female reproductive system cancer were most common malignancy in Shaoxing of Zhejiang Province in 2012.The incidence of thyroid cancer,leukemia and brain tumor is significantly increased over the past few years,which may need effective control and prevention strategies.

Objective: To confirm the cognitive rationale of Guilty Knowledge Test (GKT) with a polygraph lie-detection test,explore the merits of GKT's variation as narrowing unclear range of guilty knowledge, and to discuss the problems of the commonly used scoring method which was introduced by Lykken initially in order to obtain more scientific scoring method in accordance with the cognitive rationale. Methods:40 college students were chosen as participants.The study was designed under non-motivational instructions and neutral materials of meaningless letter strings. Results: The lie detection accuracy of this research was 73% under standard GKT paradigm (namely, the tester knowing the guilty knowledge clearly) with the scoring method introduced by Lykken, which confirmed the cognitive rationale of GKT. The accuracy of reducing guilty knowledge range from 5 to 2 was 78.4% in the condition of unclear-clue GKT (namely, the tester only knowing the guilty knowledge in the range of five items) with the scoring method of height and vicinity.Conclusion: The accuracy of lie detection with standard GKT in this study is similar to top accuracies of foreign studies with the same pattern and verified the rationale of cognition for GKT. The innovative scoring method suggested in this paper bears merits in application and is worth further studying.

Objective To analyze the detection rate of thyroid cancer from 2009 to 2013 in Shaoxing of Zhejiang province and its time trend.Methods The data of thvroid cancer in Shaoxing from 2009 to 2013 was collected to calculate the detection rate,age adjusted detection rate and percentage change of incidence,and the annual percentage change (APC) of incidence was estimated by linear regression based on the logarithm of the incidence rates observed.Results lDuring 2009-2013,a total of 3 290 new cases were diagnosed as thyroid cancer with the sex ratio of male to female being 1 ∶ 3.69.The detection rate of thyroid cancer was 14.98/100 000 (male 6.39/100 000,female 23.59/100 000),with age-standardized detection rate by Chinese standard population (ASR China)9.13/100 000(male 3.94/100 000,female 14.31/100 000),and age-standardized detection rate by world standard population(ASR worll) 10.39/100 000(male 4.47/100 000,female 16.32/100 000).The detection rate of thyroid cancer increased from 7.26/100 000 in 2009 to 27.26/100 000 (APC =39.65％,P＜0.05),with the detection rate among males increasing from 2.42/100 000 to 12.65/100 000(APC =48.44％,P＜0.05),and the detection rate among female increasing from 12.15/100 000 to 41.96/100 000(APC =37.58c％,P＜0.05).In Shaoxing,most of the new thyroid cancer cases were from 25 to 59 years old,and the highest incidence happened in the group of 50-54 years.For each age group,the detection rate in female was almost over two-folls higher than the incidence in male.Conclusion The detection rate of thyroid cancer was increased year by year from 2009 to 2013 in Shaoxing,especially among the young and middle-aged women.The corresponding measures must be taken to control the risk factors of thyroid cancer.

Objective To analyze the detection rate of lung cancer during 2009-2013 in Shaoxing of Zhejiang province and its time trend. Methods The data of lung cancer in Shaoxing from 2009 to 2013 with a total coverage population of 21 970 825 person-year (male 10 993 657 person-year, female 10 977 168 person-year), was collected to calculate the detection rate, age adjusted detection rate, percentage change of incidence (PC), etc. The annual percentage change (APC) of incidence was estimated by linear regression based on the logarithm of the incidence rates observed. Results During 2009-2013, a total of 9 973 new cases were diagnosed as lung cancer with the sex ratio of male to female being 2.44∶1. The detection rate of lung cancer was 45.39/100 000 (male 64.35/100 000, female 26.41/100 000), age-standardized detection rate by Chinese standard population (ASR China) was 20.09/100 000 (male 28.37/100 000, female 11.66/100 000), age-standardized detection rate by world standard population (ASR world) was 27.26/100 000 (male 37.83/100 000, female 15.73/100 000). The cumulative rate and truncated rate of those aged 0-74 and 35-64 were 3.40% (male 4.80%, female 1.91%) and 39.90/100 000 (male 54.44/100 000, female 24.81/100 000). The detection rate of lung cancer increased from 34.29/100 000 in 2009 to 59.91/100 000 (APC=13.88%, P=0.006<0.05), among males the detection rate increased from 50.60/100 000 to 82.91/100 000 (APC=12.52%, P=0.011<0.05), and the female detection rate increased from 17.81/100 000 to 36.78/100 000 (APC=17.70%, P=0.005<0.05). In Shaoxing, the detection rate of lung cancer increased obviously among the residents over 45 years of age. For each age group except 15-and 20-, the male detection rate was higher than the female incidence. Conclusion The men who were 45 years and older were at a higher risk of lung cancer in Shaoxing. The detection rate of lung cancer increased year by year from 2009 to 2013 in Shaoxing, especially among women over 65 years of age.

Objective To observe the function changes of right ventricular in chronic obstructive emphysema after lung volume reduction surgery. Methods Twenty-six patients with chronic obstructive emphysema undergoing lung volume reduction surgery were examined by color Doppler echocardiography to determine systolic function and diastolic function of right ventricle in preoperative days and postoperative days of 5～7; 12～14; 1 month and 3 months. Results Contraction of right ventricle: comparing with preoperative parameters, there were significant decrease (P0.05) of those above mentioned in postoperative days 12～14. It recovered at 3 month after operation. Relaxation of right ventricle: the swift filling peak flow-rate in earlier relax period (E) and E flow-rate integra (ETVI) decreased meanwhile swif filling peak flow-rate in late relax period (A) and A flow-rate integra (ATVI) increased in the postoperative days 5～7 (P

Objective To detect the effect and mechanism of Cyr61 on the apoptosis of renal tissue caused by early stage of ischemic acute kidney injury (AKI). Methods 30 SD rats were randomized into 5 groups, including control group, AKI group, AKI+bicarbonate group, AKI+blank virus group, and AKI+over?expression Cyr61 virus group. After animal models were created for 2h, serum and renal tissue were collected from sacrificed animals. Expression level of TNF?α was determined by ELISA. HE staining was used to observe the histologic changes of renal tissues. The levels of NF?κB p65 and TNFR1 were measured by immunohistochemical method. RT?PCR and Western blotting assay were adopted to detect the mRNA and protein expression levels of NF?κB p65, TNFR1 and Caspase3. Results Compared with control group, AKI group, AKI+bicarbonate group, AKI+blank virus group, AKI+over?expression Cyr61 virus group had obvious kidney injury. The levels of TNF?α, the mRNA and protein expression levels of NF?κB p65, TNFR1 and caspase3 were markedly up?regulated. Over?expression of Cyr61 significantly attenuated the degree of pathological injury, numbers of apoptotic renal tubular epithelial cells and increased the degree of Scr. Although compared with other groups, the level of TNF?α in kidney tissue had no difference, there was obvious decreased protein level of NF?κB p65, while the increase of TNFR1 and Caspase3 protein was moderate. Conclusions During the early stage of AKI, over expression of Cyr61 could inhibit apoptosis, which may be related to the suppression of TNFR1 transcriptional expression and interference of TNF?αpathway. Its underlying mechanism therefore deserves further research.

Objective A systematic review of implementation outcomes of the essential medicine system in China to identify scientific evidences for a better system.Methods A systematic review is made to extract data from the research papers on outcomes of the essential medicine system,followed by an analysis and description of such data.Results Of the 87 papers included,most of them focused on primary care institutions,while four of them on residents or patients,and one of them on pharmaceutical enterprises.The study found the medical institutions with rising availability of essential drugs,lowered medicine costs,rising or dropping business volume,and apparent drop of out-of-pocket expenses for patients.These have encouraged rational drug use.Evidences in hand indicate expected outcomes from the essential medicine system.Conclusion Current researches on the system focus on primary care institutions in developed areas in China,lacking rigorous design.Studies of broader scale,further depth and more rigorous designs of the implementations of the system are recommended for evaluation of the impacts and outcomes of the system on various stakeholders of the policy.

Objective To analyze the clinical and radiographic features of short stature combined with skeletal deformity in children,and to diagnose exactly and cure promptly in children.Methods One hundred and twenty children were collected,included 69 males and 51 females.All of the children were collected detail medical history including history of birth,feeding,growth and development and family history and taken both physical and X ray examination that bone age could be evaluate by Gruelich-Pyle method.The children were taken a laboratory examination including calcium,phosphours,alkaline phosphatase,chromosome karyotype,and so on.Results Among 120 children,there were 36 cases(30.0%) of achondroplasia,20 cases(17.0%)of Turner syndrome,10 cases(8.0%)of multiple epiphyseal dysplasia,1 case(0.8%)of spondyloepiphseal dysplasia congenital,7 cases(5.8%) of spondyloepiphyseal dysplasia tarda,2 cases(1.6%) of osteogenesis imperfecta,1 case(0.8%) of cleidocranial dysplasia,5 cases(4.2%)of mucopolysaccharide Ⅳ,5 cases(4.2%) of pseudoachondroplasia,9 cases(7.5%)of hypophosphatemic ricket,24 cases(20%)of short limb dwarf.Among 120 cases,27 were regularity dwarfism(22.5%),93 cases were irregularity dwarfism(77.5%);Among 93 cases of irregularity dwarfism,80 cases were short limb dwarfism including 36 cases of short upper limb(short upper arm 35 cases,shortforearm 1 case),20 cases of short lower limb,24 cases of proportional short stature,13 cases of short trunk.X ray bone age lag 46 cases,ahead of schedule 15 cases(12.5%),normal 59 cases.Conclusions The main causes of short stature combined with skeletal deformity are genetic bone disease.To analyze the feature of clinical and radiographic is a valuble instrument for the children diagnosis of short stature combined with skeletal deformity.Part of them skeletal age were lagged.

Objective Modified Decoction for Driving Out Blood Stasis in the Blood Mannsion on ascites tumor model of transplanted H22 anti-tumor effect and the impact of VEGF. Methods Adult male mice 100, inoculated with H22 hepatoma cells, the establishment of ascites H22 transplanted tumor model, then divided into 10 groups were given saline, capecitabine, flavored Modified Decoction for Driving Out Blood Stasis in the Blood Mannsion (high, medium and low dose) was administered orally for 10 days, 11 days of treatment, observation of suppression tumor rate, the rate of change in life extension; detected by immunohistochemistry the expression of VEGF in tumors, SPSS13.0 software for statistical analysis. Results Capecitabine, flavored Xuefuzhuyutang (high, medium and low dose) inhibited tumor growth rates were 60%, 49%, 41%, 35%, life extension rate of the three groups were 1.68% 157.98%, 70.58%, 49.57% higher. Conclusion Modified Decoction for Driving Out Blood Stasis in the Blood Mannsion can inhibit tumor cell proliferation in tumor-bearing mice, significantly prolonged the survival time of mice, reduce the tumor tissue and tumor tissue expression of VEGF.