Objective To identify the differentially expressed microRNAs in the early transformed cells,the late transformed cells and their parental BEP2D cells.Methods The differentially expressed microRNAs in the above cells were identified by microRNAs microarray assay.Results There were 38differentially expressed microRNAs in R15H20 cells versus BEP2D cells,with 18 upregulated and 20downregulated microRNAs.R15H20 and RHT35 cells shared 25 differentially expressed microRNAs compared with BEP2D cells,with 15 down-regulated and 10 up-regulated microRNAs.There were 87differentially expressed microRNAs in RHT35 cells versus BEP2D cells,with 47 upregulated and 40 downregulated microRNAs.There were 38 differentially expressed microRNAs in RHT35 cells versus R15H20 cells with 20 upregulated and 18 downregulated microRNAs.Conclusions microRNAs are differentially expressed in the different stages of carcinogenesis of BEP2D cells induced by α particles,which suggests that microRNAs may play an important role in α particle-induced malignant transformation of BEP2D cells.

Objective:To summarize the clinical features, genetic testing and treatment efficacy of 6 children with Dent disease.Methods:Six children diagnosed with Dent disease in Guangzhou Women and Children′s Medical Center from January 2014 to March 2019 were enrolled.Their medical history, clinical manifestations, laboratory results, genetic test results, and proteinuria level, calciuria level and renal function after medication were measured.Results:All patients were male, with the onset age ranged from 1 to 9 years old.They were followed up for 6 months to 4 years.All the children had low molecular weight proteinuria.Urine protein electrophoresis showed that the ratio of low molecular weight proteinuria in only 2 cases was more than 50%.Renal biopsy suggested that all cases were combined with glomerular lesions.Five cases had hypercalciuria.Under the microscope, there were 5 cases of hematuria.Two case had rickets, and there was no renal calcium deposition and hypophosphatemia.Five cases were detected with CLCN5 mutations, of which p. C160Yfs*49 and p. G523D were first reported.One case had an OCRL1 mutation.Patients were treated with Hydrochlorothiazide and angiotensin converting enzyme inhibitor (ACEI). The 24 h urinary calcium level after treatment was lower than that before treatment [0.40 (0.24, 0.43) mmol/kg vs.0.12 (0.11, 0.14) mmol/kg, U=2.00, P<0.01]. However, there was no significant decrease in the 24 h-urinary protein level before and after treatment [77.09 (62.41, 88.01) mg/kg vs.80.33 (66.03, 92.52) mg/kg, U=12.00, P>0.05]. Conclusions:Dent disease is mainly characterized by low molecular weight proteinuria, and some patients may not be associated with hypercalciuria.Gene tests help to identify the disease type.ACEI and Hydrochlorothiazide can reduce the urinary calcium level, but cannot improve the level of urinary protein.

Objective To analyze the long-term prognosis and prognostic factors of idiopathic collapsing focal segmental glomerulosclerosis (FSGS) and not otherwise specified FSGS in children. Methods The clinical, pathology and follow-up data of patients with idiopathic collapsing FSGS and not otherwise specified FSGS were analyzed retrospectively by Kaplan-Meier method, univariate and multivariate Cox regression analysis. Results A total of 64 patients (29 idiopathic collapsing FSGS and 35 not otherwise specified FSGS) were diagnosed by renal biopsy. The 4-year renal survival rate of idiopathic collapsing FSGS and not otherwise specified FSGS were 48.3%, 74.3% respectively. Univariate analysis revealed that the renal survival time were 25.41±3.28 months in idiopathic collapsing patients, and 35.53±2.73 months in not otherwise specified patients. The different is significant (χ2=4.07,P=0.044). Multivariate Cox regression analysis showed that poor treatment response (HR=5.92, P<0.05) and renal insufficiency at early stage (HR=2.45, P<0.05) were independent risk factors of prognosis. Conclusions Compared with patients with not otherwise specified FSGS, the renal survival time is shorter in idiopathic collapsing FSGS patients. Patients with renal insufficiency and poor response to treatment have poorer prognosis.

Objective To compare the value of assessment with DWI and contrast-enhanced MRI (CE-MRI) in activity of sacroiliitis of patients with ankylosing spondylitis(AS).Methods Ninety-six patients conforming to modified New York criteria were prospectively collectedas the AS group, and twenty-one healthy volunteers were enrolled into the control group. According to the Bath AS disease activity index (BASDAI), erythrocyte sedimentation rate and C-reaction protein, AS patients were divided into the active AS group (n=60) and the chronic AS group (n=36) . All subjects were performed with conventional MRI, DWI and CE-MRI of bilateral sacroiliac joints. The MRI manifestations were reviewed and the ADC values and signal intensity enhancement rate (ΔSI) were measured.ANOVA was performed for the comparison ofΔSI and ADC values among active AS group, chronic AS group and control group with BASDAI and lab test results as the gold standards. ROC was analyzed with ΔSI and ADC values for activity of AS and paired
samples t test was obtained to comparethe areas under the ROC ofΔSI and ADC values.Results Among 96 cases of AS patients, MRI of sacroiliac jointsshowed that 62 cases had subchondral bone edema (57 cases of active group, 5 cases of chronic group), that 11 cases had bone surface erosion(4 cases of active group, 7 cases of chronic group), that 15 cases had bone sclerosis(6 cases of active group, 9 cases of chronic group) and that 58 cases had fat deposition on the sacroiliac joints (27 cases of active group, 31 cases of chronic group). The ΔSI values of the active group, the chronic group and control group were respectively (2.51 ± 1.69)%,(1.19 ± 0.67)%and(0.75 ± 0.21)%, and the ADCvalues were(1.33 ± 0.33)× 10-3,(1.00 ± 0.43)× 10-3 and(0.38±0.13)×10-3mm2/s. There were significant differences forΔSI and ADC values among three groups (F=18.375, 16.366. P<0.01), and statistical significance ofΔSI and ADC values were found between every two groups of three(P< 0.05).The area under the ROC between ΔSI and ADC to determine activity of AS patients were respectively 0.814 and 0.730, which had nostatistical significance(t=1.632, P=0.103). The sensitivity and specificity to determine activity of AS patients byΔSI=1.44%were 81.67%and 80.00%.The sensitivity and specificity to determine activity of AS patients by ADC=1.15 × 10-3/mm2 were 76.67% and 71.43%.Conclusion DWI and CE-MRI performed equally in detecting activity of AS patients.

The long-period CT perfusion imaging leads to an excess amount of radiation dose to the patient. However, the radiation dose could be significantly reduced if a previous normal-dose image is acquired before a set of low-dose scans of perfusion, and a filtering processing is performed on the differences between the current low-dose images and the previous normal-dose image, then the results are added to the previous image. But the selection of plenty of parameters makes the algorithm complicated. This paper proposes an innovative approach performed in sinogram domain instead of in image domain. First a normal-dose image and a set of low-dose projection data are acquired before the perfusion. Second the perfusion information is commendably reconstructed with sparsity constraints of the differences between current low-dose perfusion sinograms and previous low-dose sinogram. Finally, the reconstructed perfusion information is added to the previous normal-dose image. The proposed method was validated by simulated experiments with a set of brain CT perfusion images, which showed that the new method provided more accurate perfusion information; the time-attenuation curve was more close to that for normal-dose scan and the mean transit time more repeatable.
Algorithms ; Brain ; diagnostic imaging ; Humans ; Perfusion Imaging ; methods ; Radiation Dosage ; Radiation Injuries ; etiology ; prevention & control ; Radiographic Image Interpretation, Computer-Assisted ; Subtraction Technique ; Tomography, X-Ray Computed ; adverse effects ; methods

Objective To explore the efficacy of quantitative susceptibility mapping (QSM) in the assessment of osteoporosis and the impact factors on the QSM values.Methods A total of 105 volunteers (35 males and 70 females) were recruited in this study.The height,weight,waistline and hipline were measured,and the body mass index was calculated.All the subjects underwent MRI-based QSM and quantitative computed tomography (QCT).The measurement of QSM and QCT values was performed on L3 vertebrae body.According to QCT value,the subjects were divided into three groups (normal,osteopenia and osteoporosis).According to age,the subjects were divided into group I (21-30 years old),group 2 (31-40 years old),group 3 (41-50 years old),group 4 (51-60 years old),and group 5 (＞60 years old).Differences among all groups were compared using one-way ANOVA or Kruskal-Wallis.Results According to QCT value,54 subjects were normal,22 osteopenic and 29 osteoporotic.The QSM value for the subjects with osteoporosis [148.60(109.42,188.81)ppb] was significantly higher than that of normal (P＜0.001)and the osteopenia (P＜0.001).The QSM value for the subjects with osteopenia was significantly higher than the normal (P＜0.001).The coefficient of QSM and BMD was-0.749 (P＜0.001).Multiple linear regression showed age was the independent influence factor for QSM value (r=0.72,P＜0.001),whereas the gender,BMI,waistline and hipline showed no significant difference (P＞0.05).With the increasing of age,the QSM value showed a gradual increasing trend.And there were significant differences of QSM values among the different age groups (P＜0.001).The QSM value of 138.98 (100.37,183.84)ppb for group 5 (＞60 years old) was significantly higher than that of group 1,group 2,and group 3 (P＜0.001).There is no difference between group 5 and group 4 (P＞0.05).The QSM value of 96.62(28.62,143.99)ppb for group 4 (51-60 years old) was significantly higher than that of group 1 and group 2 (P＜0.001).And there was no difference between group 4 and group 3 (P＞0.05).The QSM value of group 1,group 2,and group 3 showed no significant difference (P＞0.05).Conclusions The QSM of bone is feasible in the assessment of osteoporosis and has the potential to be a biomarker providing new insights into osteoporosis.And age is the critical factor affecting QSM value.

Objective:To investigate the factors affecting the accuracy of electronic portal imaging device (EPID)-based in vivo dose verification in radiotherapy for patients with lung and esophageal cancers, and to recommend the workflow and specifications for the application of the in vivo dose verification. Methods:This study randomly selected 32 patients who received radiotherapy for esophageal and lung cancers at the Department of Radiation Oncology, Jinhua Municipal Central Hospital from May to August 2022, including 14 lung cancer cases and 18 esophageal cancer cases. Using a uRT-linac 506c linear accelerator, these patients were treated according to the dynamic intensity-modulated radiotherapy (dIMRT) and EPID-based In vivo dose verification ( In vivo EPID) plans developed with the uRT-TPOIS planning system. The In vivo dose verification performed during the treatment included 238 fractions of In vivo EPID and 80 fractions of image-guided radiotherapy (IGRT) for the lung cancer cases, as well as 414 fractions of In vivo EPID and 105 fractions of IGRT for the esophageal cancer cases. The 2D γ passing rate for each irradiation field was obtained according to the set threshold value. Furthermore, fractioned irradiation fields with γ-passing rates below the threshold value were analyzed, and primary factors decreasing the γ-passing rate were further analyzed by combining the online CT images and 3D reconstruction-derived dose. Results:For lung and esophageal cancers, the mean γ-passing rates were 95.1% ± 5.7% and 96.5% ± 4.5%, respectively at 3 mm/5%; 91.5% ± 8.4% and 92.2% ± 4.9%, respectively at 3 mm/3%, and 79.1% ± 14.7% and 83.7% ± 8.2%, respectively at 2 mm/2%, indicating no statistically significant differences between two cancers ( P > 0.05). The average γ passing rate for beam orientations near 0°/180° (Group A) was higher than those near 90°/270° (Group B) 3 mm/5%: Z = -25.4, P < 0.05; 3 mm/3%: Z = -26.8, P < 0.05). The IGRT correction of setup errors significantly improved the γ passing rates (96.3% ± 5.1% and 96.4% ± 4.9%, respectively at 3 mm/5%, Z = -5.50, P < 0.05; 92.3% ± 8.0% and 91.3% ± 7.7%, respectively at 3 mm/3%, Z = -9.54, P < 0.05). The results of In vivo dose verification were affected by changes in the volumes and motion of tumors and normal tissues, radiotherapy positioning, and adequacy of pre-treatment preparation. Conclusions:EPID-based In vivo dose verification during radiotherapy can avoid incorrect irradiation. However, it is necessary to standardize the workflow of the EPID-based In vivo dose verification to avoid the decrease in the γ passing rate caused by artificial factors.

Objective:To review the application of virtual reality in cardiac rehabilitation patients, identify intervention types, intervention elements, outcome indicators, and application effects.Methods:Electronic retrieval was implemented on PubMed, Web of Science, Embase, Cochrane Library, CINAHL, China National Knowledge Infrastructure, WanFang Data, and China Biology Medicine disc, using the Joanna Briggs Institute (JBI) scoping review guideline as the methodological framework. The search period was from the establishment of the database to April 10, 2023. The literature was extracted, summarized, and analyzed.Results:A total of 16 articles were included. The main types of virtual reality interventions were immersive and non-immersive. The intervention population included patients at different stages of cardiac rehabilitation, with unrestricted intervention venues. The intervention frequency was mostly 2 to 3 times per week, with intervention duration mostly ranging from 30 to 60 minutes and intervention cycles mostly ranging from 3 weeks to 12 months. Virtual reality improved the physical function and mental health of cardiac rehabilitation patients to a certain extent, and patient feedback showed good participation and satisfaction.Conclusions:Virtual reality has a positive impact on cardiac rehabilitation patients, with good safety and feasibility, but the recovery of cardiac function is still controversial. It is still necessary to conduct large sample size, multi center research, and track long-term effects.

Objective:To evaluate the validity and reliability of Positive Beliefs About Rumination Scale(PBRS)in Chinese college students.Methods:A total of 968 college students were selected.Exploratory factor a-nalysis,criterion validity and internal consistency reliability test were performed on sample 1(n=496).The Rumi-native Responses Scale(RRS),Metacognitions Questionnaire(MCQ)and Beck Depression Inventory-Ⅱ(BDI-Ⅱ)were used as criteria for criterion validity test.Confirmatory factor analysis and Measurement invariance across gen-der were performed on sample 2(n=472).The 87 college studentsin sample 1 were retested 6 weeks later.Results:The exploratory factor analysis found 1 factor,which explained 54.39％of the total variance.The confirmatory factor analysis showed that the 1-factor model fitted well(x2/df=3.38,CFI=0.962,TLI=0.940,SRMR=0.043,RMSEA=0.071).The scores of the Positive Beliefs About Rumination Scale were positively cor-related with the scores of RRS,MCQ and BDI-Ⅱ(ICC=0.37,0.41,0.12,Ps＜0.01).The Cronbach α coefficient of the Positive Beliefs About Rumination Scale was 0.89.The retest reliability(ICC)of the Positive Beliefs About Rumination Scale was 0.72.The configural,weak,strong and strict invariance of the PBRS across gender were all acceptable(△CFI,△TLI＜0.01).Conclusion:The Positive Beliefs About Rumination Scale has good validity and reliability in Chinese college students.

Objective:To explore the effect of repetitive transcranial magnetic stimulation (rTMS) combined with cognitive behavioral therapies (CBT) on the cognitive function and alcohol craving in patients with alcohol dependence.Methods:From March 2019 to September 2021, a total of 150 patients with alcohol dependence were enrolled and randomly divided into rTMS treatment group (rTMS+ sham CBT, n=41), CBT treatment group (CBT+ sham rTMS, n=34), rTMS+ CBT treatment group( n=36) and control group (sham rTMS+ sham CBT, n=39). At baseline (before treatment), 2nd week, 8th week, 12th week and 24th week, alcohol dependence scale (ADS) was used to evaluate the degree of alcohol dependence, the obsessive compulsive drinking scale (OCDS) was used to assess patients' drinking craving, and Montreal cognitive assessment scale (MoCA) was used to assess the overall cognitive level of patients.SPSS 23.0 statistical software was used to compare the differences of ADS, OCDS and MoCA scale scores of the four groups by repeated measure ANOVA and simple effect analysis. Results:(1)The patients in the four groups were evaluated with ADS scale at baseline, 12th week and 24th week respectively.The interaction of group×time( F=1.279, P=0.279) and the main effect of group were not significant ( F=0.882, P=0.454), and the main effect of time was significant ( F=12.925, P<0.001) .Further simple effect analysis showed that the ADS score of rTMS+ CBT group was lower than that of baseline(14.48±5.70, 10.00±6.51) ( P=0.01) at 24th week.(2)Patients in the four groups were assessed with OCDs scale at baseline, 2nd week, 8th week, 12th week and 24th week, and the interaction of group×time was significant ( F=2.015, P=0.042). Further simple effect analysis showed that the OCDs scores of rTMS group and rTMS+ CBT group at each follow-up time node were lower than those at baseline period (all P<0.05). (3)Patients in the four groups were assessed with MoCA scale at baseline, 8th week, 12th week and 24th week, and the interaction of group×time was not significant ( F=1.660, P=0.106), and the main effect of group and the main effect of time were significant ( F=2.964, P=0.038; F=14.239, P<0.001). Further simple effect analysis showed that the score of MoCA scale in CBT group at the 24th week was higher than that at baseline (21.73±5.81, 24.60±3.98)( P=0.029), the score of MoCA scale in rTMS+ CBT group at the 24th week was higher than that at the 8th week (23.50±6.01, 25.95±2.87) ( P=0.006), and the score of MoCA scale in rTMS group at the 12th week was higher than that in control group (22.08±6.64, 26.64±2.46)( P=0.009). Conclusion:rTMS combined with CBT can be effective in improving alcohol craving and cognitive function in patients with alcohol dependence, and has a good long-term effect.