Objective:To examine the expression of VEGF gene in the endometrial carcinoma tissues,para-tumor tissues,normal endometria and peripheral blood,and analyze the role of VEGF in tumor growth and tumor metastasis.Methods:Real-time fluorescence quantitative PCR was used to detect the expression of VEGF gene in 51 endometrial carcinoma samples and the corresponding para-tumor tissues,40 normal endometria samples and their corresponding peripheral blood samples.The relation between the VEGF expression and clinical pathological parameters was analyzed.Results:The expression of VEGF gene was higher in the endometrial carcinoma tissues than in the corresponding para-tumour tissues and normal endometrial tissues(P0.05).The expression of VEGF in peripheral blood was higher in patients with endometrial carcinoma than that in the normal controls;and the expression was significantly correlated with the clinical stage,histological grades,pathological types and the presence of lymph node metastasis(P0.05).Conclusion:Real-time fluorescent quantitative PCR can sensitively,specifically detect the expression of VEGF in the endometrial carcinoma tissues and peripheral blood samples.VEGF might play an important role in the development,invasion,and metastasis of endometrial carcinoma.

Objective:To study the expression of matrix metalloproteinase-2 (MMP-2) and tissue inhibitor of metalloproteinase-2 (TIMP-2) in hilar cholangiocarcinoma.To discuss the relationship of MMP-2 and TIMP-2 expression with the metastasis and prognosis of hilar cholangiocarcinoma.Methods:Immunohistochemical S-P method was used in the examination of MMP-2 and TIMP-2 expression in 78 hilar cholangiocarcinoma.The relationships of MMP-2 and TIMP-2 expression with the pathological differentiation,metastasis and prognosis were analyzed.Results:The positive rate of MMP-2 expression was 72% ,and that of TIMP-2 was 76%.According to Ridit analysis,the degree of MMP-2 expression were correlated with the pathologic differentiation and lymph-node metastasis of hilar cholangiocarcinoma.The high expression of MMP-2 existed in the low pathologic differentiation and the high rate of lymph-node metastasis of hilar cholangiocarcinoma.The high expression of TIMP-2 existed in the high pathologic differentiation and the low rate of lymph node metastasis of hilar cholangiocarcinoma. MMP-2 and TIMP-2 expression had a significance correlation(r=0.708,P

Objective:To study the effect of different doses of oxycodone on the serum thromboxane A2 (TXA2),plasma endothelin (ET) levels and immune function of patients underwent laparoscopic cholecystectomy.Methods:90 patients of elective laparoscopic cholecystectomy who were treated from August 2013 to August 2016 in our hospital were selected and divided into 3 groups by random number table,with 30 cases in each group.At the beginning of operation,they were given intravenous oxycodone,group A was given 0.1 mg/kg oxycodone,group B was given 0.2 mg/kg oxycodone,group C was given 0.3 mg/kg oxycodone.The changes of hemodynamics,serum TXA2 and ET levels were compared between the three groups at T0 (after admission),T1 (after anesthesia induction),T2 (after intubation),T3 (gallbladder separation),T4 (end of surgery) and the changes of immune function was compared at T0,T5 (postoperative 2h),T6(postoperative 1d),T7 (postoperative 3d);and the extubation time,recovery time,hypotensor,additional analgesics situationin and adverse reactions were recorded.Results:The diastolic pressure (DBP),systolic blood pressure (SBP),heart rate (HR) in three groups at T2,T3 point was significantly higher than T0 point(P＜0.05),the DBP,SBP and HR in the B,C groups were significantly lower than the A group at T2 and T3 point(P＜0.05);the TXA2 in three groups at T2,T3,T4 point was significantly higher than T0 point(P＜0.05),and A group＞B group＞C group,there was significant difference between the two groups (P＜0.05);the ET in three groups at T2,T3 point was significantly higher than T0 point(P＜0.05),the ET in the B,C group was significantly higher than the A group at T2,T3 point(P＜ 0.05);the CD3+,CD4+,CD8+ and CD4+/CD8+ of the three groups at T5 point were significantly lower than that ofT0 point (P＜0.05),the CD3+,CD4+,CD8+ and CD4+/CD8+ in A group were significantly lower than that of B,C group at T5 point (P＜0.05);the extubation time in C group was significantly longer than that of A,B group(P＜0.05);the total incidence of adverse reactions in C group was significantly higher than that the A,B group (P＜0.05).Conclusion:In the laparoscopic cholecystectomy,application of 0.2 mg/kg oxycodone had little effect on hemodynamics,serum TXA2,ET levels and immune function with higher safety.

The fine structure of enoxaparin sodium samples with different degree of 1,6-anhydro derivatives were analyzed with polyacrylamide gel electrophoresis, high performance liquid chromatography, ultraviolet spectroscopy, infrared spectroscopy and nuclear magnetic resonance spectroscopy. A further study of anticoagulation activity of enoxaparins was performed, including those on their inhibition activities of coagulation factor Xa (FXa) and thrombin (FIIa). The results showed that the anti-FXa and -FIIa activities of enoxaparins with different degree of 1,6-anhydro derivatives (20.0%-39.7%) with similar structure characteristics, had decreasing tendency when the degree of 1,6-anhydro derivatives increased. Especially, the anti-FXa activity was sensitive to the change of the degree of 1,6-anhydro derivatives.

Objective:To investigate the application value of contrast-enhanced ultrasound combined with serum CXC chemokine ligand 8 (CXCL8) and CXC chemokine receptor 2 (CXCR2) levels detection in the efficacy evaluation of patients with primary liver cancer after transcatheter arterial chemoembolization (TACE) .Methods:A total of 80 patients with primary liver cancer who were diagnosed and treated in Huanggang Central Hospital of Hubei Province from June 2019 to January 2022 were selected as the research objects. The therapeutic efficacy was evaluated 2 months after TACE treatment. According to the pathological diagnosis, the patients were divided into complete inactivation group ( n=30) and residual lesion group ( n=50) . The levels of serum CXCL8 and CXCR2 were measured by enzyme linked immunosorbent assay (ELISA) double antibody sandwich method, and contrast-enhanced ultrasonography was performed on the patients. Receiver operating characteristic (ROC) curve was applied to analyze the value of serum CXCL8 and CXCR2 in evaluating the efficacy of TACE in patients with primary liver cancer. Kappa test was applied to test the consistency of contrast-enhanced ultrasound and contrast-enhanced ultrasound combined with serum CXCL8 and CXCR2 in evaluating the efficacy of TACE in patients with primary liver cancer and the results of pathological diagnosis. Results:Compared with the complete inactivation group, the levels of serum CXCL8 [ (7.12±1.68) ng/ml vs. (5.07±1.25) ng/ml] and CXCR2 [ (3.62±0.79) ng/ml vs. (2.43±0.67) ng/ml] in the residual lesion group were obviously higher ( t=5.79, P<0.001; t=6.89, P<0.001) . The areas under the curve of CXCL8 and CXCR2 in evaluating the efficacy of TACE in patients with primary liver cancer were 0.827 and 0.801 respectively, the specificities were 73.3% and 76.7%, and the sensitivities were 70.0% and 72.0% respectively. The concordance between contrast-enhanced ultrasound and pathological diagnosis was moderate, and the Kappa value was 0.49 ( P<0.001) . The concordance between contrast-enhanced ultrasound combined with serum CXCL8 and CXCR2 and pathological diagnosis was high, and the Kappa value was 0.62 ( P<0.001) . The sensitivity of contrast-enhanced ultrasound combined with serum CXCL8 and CXCR2 in evaluating the efficacy of TACE in patients with primary liver cancer was 90.0%, which was higher than the sensitivity of contrast-enhanced ultrasound (72.0%, χ2=5.26, P=0.022) , CXCL8 (70.0%, χ2=6.25, P=0.012) and CXCR2 (72.0%, χ2=5.26, P=0.022) . Conclusion:Contrast-enhanced ultrasound can detect residual lesions after TACE in patients with primary liver cancer to a certain extent, and its combination with serum CXCL8 and CXCR2 can effectively improve the evaluation efficiency of the efficacy of TACE treatment in patients with primary liver cancer.

Objective: To investigate the comorbidity of myopia and scoliosis among primary and secondary school students in Tianjin, and to analyze the school environment risk factors contributing to these health issues, so as to provide a scientific basis for development effective prevention measures. Methods: A total of 41 654 primary and secondary school students from 16 districts of Tianjin were selected by stratified random cluster sampling from September to October 2023 to screen for myopia and scoliosis. Univariate analysis was performed to examine the data, followed by a bivariate multivariate Logistic regression model and cumulative effect analysis to explore the influencing factors of their comorbidity. Results: In 2023, the prevalence of comorbidity of screening positive myopia and scoliosis among primary and secondary school students in Tianjin was 2.65%. The prevalence was higher in suburban areas (3.26%) compared to urban areas (2.02%), higher among females (3.81%) compared to males (1.59%), and highest in high school students (6.17%) compared to middle school (4.19%) and primary school students (0.44%) (χ2=62.23, 198.69, 953.19, P<0.01). Logistic regression analysis showed that the number of physical education classes ≥3 per week, the number of eye health exercises at school ≥2 per day, outdoor activities between classes, teachers reminding to pay attention to reading and writing posture and strict eye standing posture were negatively correlated with the comorbidity of screening positive myopia and scoliosis (OR=0.66, 0.77, 0.71, 0.78, 0.74, P<0.05). Reading or electronic screen while lying or lying on the stomach was positively associated with the comorbidity of screening positive myopia and scoliosis (OR=1.77, P<0.05). Cumulative effect analysis showed that the cumulative score (4-7, 7-9, ≥10) was negatively correlated with the comorbidity of screening positive of myopia and scoliosis (OR=0.65, 0.55, 0.52, P<0.05). Conclusions The school environment support and students personal behavior habits in school are related to the comorbidity of comorbidity of screening positive myopia and scoliosis. Prevention and control of myopia and scoliosis should improve the environmental factors related to students health in school.

Objective To compare the image quality of chest low dose CT (LDCT) using automatic exposure control (AEC) and constant current control (CCC) and explore a more reasonable scanning protocol. Methods Two hundred and eighty participants were examined with 64 CT scanner at 7 centers in China. All were divided into 4 groups. Two groups underwent LDCT using AEC with standard deviation set at 25 (A1) and 30 (A2) respectively and the tube current ranged from 10 mA to 80 mA. The other two groups underwent LDCT using CCC with tube current set at 40 mA (C1) and 50 mA (C2) respectively. The axial and MPR images were evaluated by two radiologists who were blinded to the scanning protocols.The radiation dose, noise and the image quality of the 4 groups were compared and analyzed statistically.Differences of radiation dose and noise among groups were determined with variance analysis and t test,image quality with Mann-Whitney test and the consistency of diagnosis with Kappa test. Results There was a significant lower DLP in AEC group than in CCC group [(82.62±40.31)vs ( 110.81±18.21) mGy·cm (F =56. 88 ,P ＜ 0. 01 )], whereas no significant difference was observed between group A2 and group A1 0. 05]. The noisy of AEC group was higher than that of CCC group both on lung window(41.50±9.58 vs 40.86±7.03) and mediastinum window (41.19±7.83 vs 40.92±9.89), but there was no significant difference( Flung =0.835, P=0.476, Fmediastinum =1.910, P=0.128).The quality score of axial image in AEC group was higher than that in CCC group (superior margin of the brachiocephalic vein level: 4.49±0.56 vs4.38±0.64,superior margin of the aortic arch: 4.86±0.23 vs 4.81±0.32,the right superior lobar bronchus Level:4.87±0.27 vs 4. 84 ± 0. 22, the right middle lobar bronchus Level: 4.90±0.25 vs 4.88±0.21) except on the right inferior pulmonary vein level(4. 92 ±0. 25 vs 4. 93 ±0. 17) and superior margin of the left diaphragmatic dome level (4. 91±0.27 vs 4.93±0.22) on lung window, but no significant differences (F=0.076-1.748, P＞0.05) were observed. A significant higher score in AEC group was observed on mediastinum window compared with CCC group on superior margin of brachiocephalic vein level (2.57±0.77 vs 2. 46 ± 0. 59, F = 8. 459, P ＜ 0. 05 ), however, the score of AEC group was lower than that of CCC group on other levels without significant differences (superior margin of the aortic arch:3.36 ±0. 63 vs 3.45 ±0. 60,the right superior lobar bronchus level: 3.94 ±0. 56 vs 3. 95 ±0. 51 ,the right middle lobar bronchus Level: 3.80 ±0. 58 vs 3. 87 ±0. 50,the right inferior pulmonary vein level: 3.72 ±0. 56 vs 3.78 ±0. 53, superior margin of the left diaphragmatic dome level: 3.58 ± 0.63 vs 3.68±0.56,F=0.083-3.380,P ＞ 0.05 ). The MPR image quality of AEC group was better than that of CCC group both on lung window and mediastinum window (Zlung =-2.258, Zmedlastinum=-1.330, P＞0.05). For all participants including the underweighted group, the normal group and the overweighted group, the image quality of A1 group was better than that of A2 group without significant differences (the underweighted group: Zlung=0.000, P=1.000, Zmedastinum= 0.000, P=1.000;the normal group: Zlung =-0.062, P=0.950, Zmediastinum =-0.746, P = 0.456; the overweighted group: Zlung = - 1.177, P = 0.239,Zmediastinum =-1.715, P=0.144) both on lung and mediastinum windows, and for the higher BMI participants, a better image quality was obtained in A1 group than in A2 group on the mediastinum window (Z = -1. 715, P = 0. 144). Conclusions The total radiation exposure dose of AEC group is significantly lower than that of CCC group, but no statistical significant differences are observed between both groups in image quality and noise level. The AEC technique is highly recommended in thoracic LDCT scan for screening program, and the SD25 ( SD value = 25) scan protocol is suggested for higher BMI population while the SD30 (SD value = 30) scan protocol for lower BMI population.

Objective To investigate value of peripheral NLR and PLR for the survival of patients with neuroblastoma.Methods The clinical data of 41 neuroblastoma patients were analyzed by the Kaplan-Meier,Log-rank test,and multivariate COX regression.Results NLR,PLR levels of neuroblastoma patients were significantly higher than that in the healthy control group (1.81 ±0.29 vs.1.07 ±0.29,P ＜ 0.01) (169 ± 23 vs.76 ± 3,P ＜ 0.01);The elder the age,the higher the clinical stages,the higher the serum levels of NSE,and urine VMA were,the higher was the NLR (x2 =3.93,6.286,7.676,6.689,all P＜0.05) and PLR (x2 =4.111,5.707,8.019,8.922,all P ＜0.05).The higher the serum level of LDH,the higher was the NLR (x2 =7.769,P =0.02).3-year overall survival in low NLR group was 84％ and that in high NLR group was 73％ (x2 =4.002,P =0.045);3-year progression-free survival in low NLR group was 74％ and that in high NLR group was 50％ (x2 =4.082,P =0.043);3-year progression-free survival of low PLR group was 85％ and high PLR group was 38％ (x2 =9.388,P =0.002).The clinical stages,MYCN genetic expression,NLR levels were independent factors for the overall survial in patients with neuroblastoma (P ＜ 0.05).Conclusion Pretreatment NLR level can effectively predict the prognosis of neuroblastoma.

Objective: To understand trends and related factors influencing overweight and obesity among primary and secondary school students in Tianjin, so as to provide a basis for formulating overweight and obesity prevention and control strategies. Methods: In September of each year from 2019 to 2023, a survey was conducted among 197 707 primary and secondary school students in 16 districts of Tianjin through a stratified random cluster sampling method. Physical examination was carried out in accordance with the Technical Standard for Physical examination for Student, and overweight and obesity survey was carried out. Basic information, smoking, drinking, diet, physical exercise, and sleep status were collected through questionnaire surveys. Results: The detection rates of overweight and obesity among primary and secondary school students in Tianjin from 2019 to 2023 were 39.07%, 43.33%, 41.54%, 43.92%, and 40.24%, respectively，showing an increasing trend(χ2trend=7.96,P<0.01). The detection rates of overweight increased in both vocational high schools and suburban counties (χ2trends=9.08, 47.18, P<0.01). The detection rates of obesity increased among both male and female students, in primary and vocational high schools and suburban counties (χ2trends=108.34, 15.99, 7.32, 10.95, 14.75, P<0.01). Multivariate Logistic regression analysis showed that smoking, drinking, unhealthful diet, and lack of proper physical exercise had a higher risk of obesity among primary and secondary school students (OR=1.26, 1.13, 1.08, 1.21, P<0.05). Stratified analysis showed that the risk of obesity was higher among boys with unhealthful and moderate lifestyle habits, as well as primary school students with unhealthful lifestyle habits (OR=1.15, 1.11, 1.27, P<0.05). Boys, girls and primary school students with unhealthful lifestyle habits, girls and ordinary high school students with moderate lifestyle habits had higher risk of being overweight (OR=1.14, 1.32, 1.21, 1.18, 1.40, P<0.05). Conclusions The detection rates of overweight and obesity among primary and secondary school students in Tianjin shows an increasing trend. Comprehensive lifestyle should be implemented to better prevent and control the risk of overweight and obesity.

Objective: To investigate the tendency of obesity and depressive symptoms in middle school students in Tianjin, so as to provide a reference for exploring the clustering patterns of health risk behaviors and their effects on obesity and depressive symptoms. Methods: A stratified cluster sampling method was used to investigate the obesity, depressive symptoms and health risk behaviors of middle school students from 16 counties of Tianjin from 2019 to 2023. The latent classes analysis was used to classify health risk behaviors. The χ 2 test and Logistic regression were used to analyze the effects of different categories on obesity and depression symptoms. Results: The obesity detection rate of middle school students in Tianjin from 2019 to 2023 first increased ( 20.90% in 2019, 23.35% in 2020) and then decreased and gradually stabilized (2021-2023:22.20%-22.69%), and the detection rate of depressive symptoms showed a decreasing trend (from 21.65% to 14.92%). The detection rate of comorbidity of obesity and depressive symptoms first increased (4.62% in 2019, 4.66% in 2020) and then gradually decreased to 3.43% in 2023, and the rate was higher in boys than in girls and higher in urban areas than in suburban areas. Latent category analysis classified health risk behaviors into four categories: lack of exercise group, poor behaviors such as sleep group, poor diet group and healthy group. After adjusting for demographic characteristics,the results of Logistic regression analysis showed that the co-occurrence risk of obesity and depression symptoms among the top three groups of middle school students were 1.35( OR=1.35, 95%CI =1.15-1.58), 4.20( OR=4.20, 95%CI =3.50-5.04), and 1.84( OR=1.84, 95%CI =1.40-2.38)times, compared to the healthy group ( P <0.05). Conclusions From 2019 to 2023, the comorbidity rate of obesity and depression among middle school students in Tianjin increased first and then decreased gradually. Interventions should be made in the aspects of exercise, diet, sleep and other behaviors.