Objective To assess the technical levels of computed tomography (CT) quality control testing capabilities among radiological health technology service institutions in Hubei Province, China. Methods Ten radiological health technology service institutions in Hubei Province were organized to participate in an inter-institutional capability comparison of selected indicators in CT quality control testing with reference to the Specification for testing of quality control in X-ray computed tomography (WS 519—2019). The robust Z-score method was employed to evaluate the results of the capability comparison data from the ten institutions. Results Six institutions achieved a "satisfactory" rating in all assessed indicators, with a satisfaction rate of 60%. Indicators rated as "unsatisfactory" or "questionable" included "positioning light accuracy", "uniformity", "noise", and "high-contrast resolution". Conclusion The CT quality control testing capabilities of some radiological health technology service institutions in Hubei Province require further enhancement. Improved training and education for testing personnel are recommended.

Objective:To explore the radiological protection measures for yttrium-90 ( 90Y)-loaded resin microsphere therapy in clinical application. Methods:The surgical operation process for 90Y-loaded resin microsphere therapy was simulated, involving measurement of ambient dose equivalent rates at various stages: preoperative preparation (dominated by drug package), drug transfer, intraoperative procedures (drug operation and injection), and postoperative care and observation within the hospital. Based on the simulation, the protection measures in clinical application were analyzed. Results:The dose equivalent rate ranged from 0.12 to 0.42 μSv/h around the active chamber and from 1.04 to 3.32 μSv/h in the fume hood. Around the digital subtraction angiography (DSA) room, the maximum dose equivalent rate was 0.78 μSv/h when 90Y and DSA were applied simultaneously and 0.36 μSv/h when 99Tc m and DSA were applied. For the first operating position in the fluoroscopy protection area, the maximum dose equivalent rate was 13.19 μSv/h at 155 cm height when only 90Y was applied, and 315.01 μSv/h at 80 cm height when 90Y and DSA were applied. For the second operating position, the maximum dose equivalent rate was 6.28 μSv/h at 155 cm height when only 90Y was applied and 291.03 μSv/h at the same height when 90Y and DSA were applied. The dose-equivalent rates ranged from 0.11 to 0.58 μSv/h around the dedicated ward for postoperative patients. Conclusions:The existing shielding measures, such as those in the nuclear medicine department and interventional room, meet the radiation protection requirements for 90Y-loaded resin microsphere therapy. However, it is still necessary to conduct a scientific assessment based on the actual situation. Additionally, radiation protection measures and surface contamination treatment should be enhanced during drug operation.

Objective To investigate the effect of LncRNA WT1-AS on the invasion and migration of triple-negative breast cancer MDA-MB-231 cells. Methods qRT-PCR was used to detect the expression of WT1-AS and the efficiency of gene silencing in MDA-MB-231 cells. Transwell invasion test and scratch test were used to detect the invasion and migration of MDA-MB-231 cells; Western blot was used to detect the expression of E-cadherin, N-cadherin, Vimentin and Snail in MDA-MB-231 cells. Results Compared with normal human mammary epithelial cells, the expression of WT1-AS in MDA-MB-231, MDA-MB-453 and MDA-MB-468 cells were significantly up-regulated. Knockdown of WT1-AS significantly reduced the invasion and migration abilities of MDA-MB-231 cells, the expression of E-cadherin was increased but N-cadherin, Vimentin and Snail expression were decreased. Conclusion WT1-AS could promote the invasion and migration of triple-negative breast cancer cells MDA-MB-231 via regulating epithelial-mesenchymal transition.

Objective To explore the value of transesophageal doppler in transurethral resection prostate.Methods Thirty-six patients (aged 60-85 years, falling into ASA grade Ⅰ-Ⅲ) of benign prostatic hyperplasia for undergoing transurethral resection prostate were enrolled.Through multifunction monitor, CVP, Narcotrend index(NI) were monitored before anesthesia induction (T0), 20 minutes after anesthesia induction (T1), after irrigating fluid of 5 000 ml (T2) and 10 000 ml (T3) and 15 000 ml (T4) and 20 000 ml (T5).By transesophageal doppler, FTc(corrected flowtime), SV(stroke volume), ΔPV(peak flow vaviable quantity) were monitored at T1-T5.Results CVP at T1-T5 were not significantly changed compared with that at T0.Compared with T1, FTc, SV at T3-T5were significantly increased and ΔPV at T2-T5were significantly decreased (P<0.05).CVP levels correlated significantly with both FTc (r=0.702, P<0.01) and SV (r=0.595, P<0.01).CVP negatively correlated significantly with ΔPV (r=-0.351, P<0.05).Furthermore, FTc correlated significantly with the concentrationof Na+(r=0.672,P<0.01).No patient had serum sodium ion concentration less than 125 mmol/L.Conclusion FTc of transesophageal doppler is as accurate as central venous pressure in monitoring hemodynamic changes, and even more sensitive than CVP.It is useful in early diagnosis and treatment of TURS.

Objective To explore the effect of calcitonin gene-related peptide (CGRP) on expressions of aquaporin (AQP)1 and AQP 5 in young rats with acute lung injury (ALI) caused by lipopolysaccharide (LPS).Methods Eighty-four young rats were randomly divided into control group,ALI model group and CGRP group.The rats in ALI model group were given intraperitoneal injection of LPS (5 mg/kg)for 2,6,12,24 hours;while the rats in CGRP group were given intraperitoneal CGRP (1 mg/kg) after 1 h injection of LPS.At 2 h,6 h,12 h and 24 h,all rats were sacrificed and lung tissues were obtained.The histopathological changes in lung tissues were evaluated by adopting hematoxylin-eosin staining,and wet/dry(W/D) was measured.The mRNA and protein levels of AQP1 and AQP5 in lung tissues were detected by adopting fluorogenic quantitative PCR (qPCR) and Western blot.Results Pathological stain showed that rats in control group had a normal lung tissue structure,and LPS made lung tissue edema,narrowing the alveolar cavity and inflammatory cell infiltration.CGRP attenuated the effect of LPS on rat's lung.The W/D ratio of lung tissue was significantly higher than that in the control group,and CGRP reduced the W/D ratio of lung tissue.qPCR showed that the mRNA levels of AQP1 and AQP5 from rats in ALI group (0.009 ±0.001 and 0.055 ±0.006)decreased compared with those in the control group (0.035±0.002 and 0.167 ±0.006) and CGRP group (0.024 ± 0.002 and 0.134 ± 0.012) (all P ＜ 0.001).Western blot results showed after 24 h injection of LPS,both AQP1 and AQP5 levels from ALI group (0.397 ± 0.041 and 0.215 ± 0.029) were significantly lower than those in the control group (0.850 ± 0.020 and 0.741 ± 0.032) (all P ＜ 0.001),and their levels in CGRP group (0.593-± 0.065 and 0.461 ± 0.039) were also lower than those in the control group,but higher than those in ALI group (all P ＜ 0.001).Conclusion CGRP can enhance AQP1 and AQP5 levels and reduce pulmonary edema,and it has a protective effect on rats with acute lung injury.

Objective To improve diagnosis on esophageal tuberculosis by the endoscopic ultrasonography (EUS).Methods A retrospective analysis of 9 cases of esophageal tuberculosis patients diagnosed by EUS or EUS guided ifne needle aspiration (EUS-FNA) who were treated from 2011 to 2016 and literature reviewed.Results The main presenting symptoms were dysphagia (6 cases), burning pain after sternum (3 cases), low-grade fever and night sweat (2 cases), cough and hemoptysis (1 case). The middle esophagus was involved in 7 cases, upper and lower third of the esophagus were affected in 1 cases. The endoscopic appearances included ulcer (1 case), mass lesion (8 cases). The diagnoses were conifrmed by biopsies with pathology in 5 cases. The layers of the esophageal wall were unclear or disappeared in some cases, and in some patients low echo occupying lesions inside or outside the esophageal wall were showed by EUS. The internal echo of the lesions was heterogeneous, and strong echo spots could be observed. In most cases, enlarged mediastinal lymph nodes were observed. EUS-FNA was used to take biopsy specimens in 2 cases: biopsy specimens suggested tuberculosis; and anti-TB treatment has good effect as well.Conclusion Dysphagia is the major clinical symptom of esophageal tuberculosis, always inlfuences the middle part of the esophagus. The commonest abnormalities identiifed by endoscopy are ulceration and mass lesion. The diagnostic rate of the disease can be improved by endoscopic examination with biopsies, EUS and EUSFNA data.

OBJECTIVETo develop a brief version scale with good validity and reliability to evaluate self-management knowledge, attitude and behavior (KAB) of diabetes patients in a shorter time.

METHODS20 authority experts who specialized in the field of diabetes clinical and non-communicable disease self-management, and familiar with the relevant content of diabetes self-management were selected. Face to face and Email consultation methods were applied in two rounds delphi expert consultations to choose items from the Diabetes Self-management Knowledge, Attitude, and Behavior Assessment Scale (DSKAB, total scale, 98 items). In the first round of expert consultation, experts were asked to select the core items from every dimension and score the extent of familiarity and basis of judgment. In the second round of expert consultation, the significance of the core items which were selected by experts in first round, were graded. The items which entered into the brief scale were determined by harmonious condition of expert opinions.

RESULTSTwo rounds of consultation reclaimed 16 and 15 responses respectively, Positive coefficients of experts were 80% and 94% respectively, and both authoritative coefficients were 0.90. In the first round of consultation, experts selected 44.3 ± 6.2 items on average, 42 items were selected according to the integrity of the scale for measuring dimension and content at last. In the second round of consultation, experts thought that the 42 items could measure the important contents of each dimension comprehensive and representative, the item importance scores of knowledge, attitude, and behavior subscale were 8.42 ± 1.17, 8.61 ± 1.24, 8.61 ± 1.02 respectively, and the coordination coefficients of the three subscale were 0.36, 0.20, 0.49 (χ(2) were 89.74, 11.13, 96.03, P<0.05). The total coordination coefficient was 0.38 (χ(2) =199.36, P<0.001), which indicated the concentration of experts(')opinion was acceptable, showed the brief scale with good face validity and content validity.

CONCLUSIONThe brief scale could evaluate Diabetes Self-management KAB Scale rapidly and relatively comprehensive in groups or individuals diabetes with good face validity and content validity.

Objective To understand the changes on patterns of sleep duration of the China Health and Nutrition Survey (CHNS) cohort in 9 provinces from 2004 to 2011.Methods Four rounds of CHNS data were used.Urban/rural,age and gender specific insufficient sleeping rates and excessive sleeping rates were analyzed.Results In 2004,2006,2009 and 2011,a total of 274,281,329 and 304 children aged 3-5 years;874,806,768 and 742 children aged 6-12 years;789,529,426 and 367 children aged 13-17 years;9 568,9 530,9 942 and 9 609 adults aged ≥18 years were surveyed respectively.The lowest insufficient sleeping rate was 53.9％ (200/371) in 3-17 years old children in rural area in 2006,the highest insufficient sleeping rate was 77.2％ (44/57) in 3-5 years old children in urban area in 2004.The insufficient sleeping rate increased in rural 3-5 years old children from 2004 to 2011.For the adults aged ≥ 18 years,the insufficient sleeping rate ranged from 4.2％ (82/ 1 954) in females aged 18-44 years in 2004 and 2009 to 20.8％ (211/1 015) in urban residents aged ＞ 60 years in 2011.The insufficient sleeping rate in age-groups 44-59 years and ≥60 years increased in both males and females and in both urban area and rural area from 2004 to 2011.The gender specific excessive sleeping rate in 3-17 years old children was very low in both urban area and rural area and no difference was found in different rounds of survey.The excessive sleeping rate in adults ranged from 18.4％ (569/3 093) in urban population in 2011 to 32.5％ (1 617/4 969) in females in 2004.The excessive sleeping rate of adult decreased from 2004 to 2011.Conclusion We should pay attention to the fact that the insufficient sleeping rate in adolescents is high and in increase in rural 3-5 years old children and adults aged ≥45 years.

Objective To evaluate the validity, reliability, and acceptability of the brief version of the self-management knowledge, attitude, and behavior (KAB) assessment scale for diabetes patients. Methods Diabetes patients who were managed at the Xinkaipu Community Health Service Center of Tianxin in Changsha, Hunan Province were selected for survey by cluster sampling. A total of 350 diabetes patients were surveyed using the brief scale to collect data on knowledge, attitudes, and behaviors of self-management. Content validity was evaluated by Pearson correlation coefficient between the brief scale and subscales of knowledge, attitude, and behavior. Structure validity was evaluated by factor analysis, and discrimination validity was evaluated by an independent sample t-test between the high-score and low-score groups. Reliability was tested by internal consistency reliability and split-half reliability. The evaluation indexes of internal consistency reliability were Cronbach's α coefficients, θ coefficient, and Ω coefficient. Acceptability was evaluated by valid response rate and completion time of the brief scale. Results A total of 346(98.9%) valid questionnaires were returned, with average survey time of (11.43±3.4) minutes. Average score of the brief scale was 78.85 ± 11.22; scores of the knowledge, attitude, and behavior subscales were 16.45 ± 4.42, 21.33 ± 2.03, and 41.07 ± 8.34, respectively. Pearson correlation coefficients between the brief scale and the knowledge, attitude, and behavior subscales were 0.92, 0.42, and 0.60, respectively;P-values were all less than 0.01, indicating that the face validity and content validity of the brief scale were achieved to a good level. The common factor cumulative variance contribution rate of the brief scale and three subscales was from 53.66%to 61.75%, which achieved more than 50%of the approved standard. There were 11 common factors;41 of the total 42 items had factor loadings above 0.40 in their relevant common factor, indicating that the brief scale and three subscales had good construct validity. Patients were divided into a high-score group and a low-score group, then scores of the brief scale and three subscales were compared between the groups using a t-test. The results were all significant, indicating that the brief scale and three subscales had good discriminate validity. Mean scores of the brief scale and three subscales of the high-score group were 91.55±6.81, 19.51±2.17, 22.74±1.88, and 49.30±6.20, respectively;these were higher than the low-score group (65.89 ± 5.79, 12.29 ± 4.76, 20.22 ± 1.88, and 33.39 ± 6.17, respectively) with t-values 27.76, 13.31, 9.20, and 17.56 (P-values were less than 0.001). The Cronbach's α coefficient, θ coefficient,Ω coefficient, and split-half reliability of the brief scale were 0.83, 0.87, 0.96, and 0.84, respectively. These values for the three subscales were all above 0.70, except for theθcoefficient of the attitude subscale with 0.64, indicating that the brief scale and three subscales had acceptable internal consistency reliability. Conclusion The brief version of the diabetes self-management knowledge, attitude, and behavior assessment scale showed good acceptability, validity, and reliability, to responsibly evaluate self-management KAB among patients with diabetes.

Objective To evaluate the validity, reliability, and acceptability of the brief version of the self-management knowledge, attitude, and behavior (KAB) assessment scale for diabetes patients. Methods Diabetes patients who were managed at the Xinkaipu Community Health Service Center of Tianxin in Changsha, Hunan Province were selected for survey by cluster sampling. A total of 350 diabetes patients were surveyed using the brief scale to collect data on knowledge, attitudes, and behaviors of self-management. Content validity was evaluated by Pearson correlation coefficient between the brief scale and subscales of knowledge, attitude, and behavior. Structure validity was evaluated by factor analysis, and discrimination validity was evaluated by an independent sample t-test between the high-score and low-score groups. Reliability was tested by internal consistency reliability and split-half reliability. The evaluation indexes of internal consistency reliability were Cronbach's α coefficients, θ coefficient, and Ω coefficient. Acceptability was evaluated by valid response rate and completion time of the brief scale. Results A total of 346(98.9%) valid questionnaires were returned, with average survey time of (11.43±3.4) minutes. Average score of the brief scale was 78.85 ± 11.22; scores of the knowledge, attitude, and behavior subscales were 16.45 ± 4.42, 21.33 ± 2.03, and 41.07 ± 8.34, respectively. Pearson correlation coefficients between the brief scale and the knowledge, attitude, and behavior subscales were 0.92, 0.42, and 0.60, respectively;P-values were all less than 0.01, indicating that the face validity and content validity of the brief scale were achieved to a good level. The common factor cumulative variance contribution rate of the brief scale and three subscales was from 53.66%to 61.75%, which achieved more than 50%of the approved standard. There were 11 common factors;41 of the total 42 items had factor loadings above 0.40 in their relevant common factor, indicating that the brief scale and three subscales had good construct validity. Patients were divided into a high-score group and a low-score group, then scores of the brief scale and three subscales were compared between the groups using a t-test. The results were all significant, indicating that the brief scale and three subscales had good discriminate validity. Mean scores of the brief scale and three subscales of the high-score group were 91.55±6.81, 19.51±2.17, 22.74±1.88, and 49.30±6.20, respectively;these were higher than the low-score group (65.89 ± 5.79, 12.29 ± 4.76, 20.22 ± 1.88, and 33.39 ± 6.17, respectively) with t-values 27.76, 13.31, 9.20, and 17.56 (P-values were less than 0.001). The Cronbach's α coefficient, θ coefficient,Ω coefficient, and split-half reliability of the brief scale were 0.83, 0.87, 0.96, and 0.84, respectively. These values for the three subscales were all above 0.70, except for theθcoefficient of the attitude subscale with 0.64, indicating that the brief scale and three subscales had acceptable internal consistency reliability. Conclusion The brief version of the diabetes self-management knowledge, attitude, and behavior assessment scale showed good acceptability, validity, and reliability, to responsibly evaluate self-management KAB among patients with diabetes.