Objective: To investigate the coexistence of comorbidity of myopia, overweight/obesity and depressive symptoms among middle school students in Quzhou and its associated factors, so as to provide evidence for integrated prevention and control of common multiple health issues in students. Methods: From September to November 2023, a total of 5 867 middle school students from 6 counties (cities and districts) in Quzhou City were selected by stratified random cluster sampling. Physical and visual examinations were conducted, and the Center for Epidemiological Studies - Depression Scale (CES-D) along with a questionnaire on health status and influencing factors were completed. Multivariate Logistic regression was used to analyze the related factors of coexistence of myopia, overweight/obesity, and depressive symptoms among middle school students, and a nomogram model was constructed based on the results. Results: A total of 161 middle school students in Quzhou City were identified as having comorbid myopia, overweight/ obesity and depressive symptoms, with a detection rate of 2.74%. The results of multivariate Logistic regression analysis showed that the coexistence of myopia, overweight/obesity and depressive symptoms increased among middle school students with older age ( OR =1.11), a greater number unhealthy dietary behaviors (1,2,≥3; OR =2.40, 2.70, 4.63), insufficient sleep( OR =1.78) and alcohol consumption ( OR =2.11)(all P <0.05). Compared with no homework after class, those whose homework duration after class was 1 to < 2 hour had a lower risk of comorbidity of myopia, overweight/obesity and depressive symptoms ( OR =0.53, P <0.05). The results of the nomogram model showed that the AUC (95% CI ) was 0.71 (0.67-0.74). Conclusions The coexistence of myopia, overweight/obesity and depressive symptoms among middle school students in Quzhou City is related to age, sleeping, alcohol consumption, poor dietary behavior and the duration of after school homework. The nomogram model can assist in the early screening and intervention of multiple health issues among students.

Objective To investigate the safety and efficacy of totally no tube three-port thoracoscopic surgery (TNTT) for thymic tumor via lateral thoracic approach. Methods The clinical data of patients with thymoma admitted to the Department of Thoracic Surgery of the General Hospital of Northern Theater Command from November 2021 to May 2022 were retrospectively analyzed. The patients were divided into a TNTT group and a single utility port video-assisted thoracic surgery (SVATS) group according to different surgical methods. The clinical data were compared between the two groups. Results A total of 111 patients were collected. There were 44 patients in the TNTT group, including 20 males and 24 females, with an average age of 60.11±8.64 years, and 67 patients in the SVATS group, including 30 males and 37 females, with an average age of 62.40±7.92 years. There was no significant difference between the two groups in the baseline data (P>0.05). The postoperative hospital stay and intraoperative blood loss were shorter or less in the TNTT group (P<0.05), and the visual analogue scale score 48 hours after the operation was smaller in the SVATS group (P<0.05). Conclusion TNTT has a good surgical safety, and can shorten postoperative hospital stay, reduce intraoperative blood loss, and has significant advantages in enhanced recovery after surgery, but SVATS can reduce postoperative pain in patients.

Objective To analyze the learning curve of Da Vinci robotic segmentectomy. Methods Cumulative sum analysis (CUSUM) was used to analyze the learning curve of Da Vinci robotic segmentectomy performed by the General Hospital of Northern Theater Command from February 2018 to December 2020. The learning curve was obtained by fitting, and R2 was used to judge the goodness of fitting. The clinical data of patients in different stages of learning curve were compared and analyzed. Results The first 50 patients who received Da Vinci robotic segmentectomy were included, including 24 males and 26 females, with an average age of 61.9±10.6 years. The operation time decreased gradually with the accumulation of operation patients. The goodness of fitting coefficient reached the maximum value when R2=0.907 (P<0.001), CUSUM (n) =0.009×n3−0.953×n2+24.968×n−7.033 (n was the number of patients). The fitting curve achieved vertex crossing when the number of patients reached 17. Based on this, 50 patients were divided into two stages: a learning and improving stage and a mastering stage. There were statistical differences in the operation time, intraoperative blood loss, postoperative drainage volume, number of lymph node dissection, postoperative catheter time, postoperative hospital stay, and postoperative complications between the two stages (P<0.05). Conclusion It shows that the technical competency for assuring feasible perioperative outcomes can be achieved when the cumulative number of surgical patients reaches 17.

Objective:To explore the association of cerebral venous outflow assessed by CT angiography (CTA) with first pass effect (FPE) in patients with acute anterior circulation large vessel occlusion accepted mechanical thrombectomy (MT).Methods:A retrospective analysis was performed; patients with acute anterior circulation large vessel occlusion accepted MT and CTA in Department of Neurology, Affiliated Hospital of Xuzhou Medical University from July 2018 to June 2021 were consecutively enrolled. Cerebral venous outflow in baseline CTA was evaluated using Cortical Vein Opacification Score (COVES). Patients were categorized into either FPE or non-FPE groups based on recanalization of occluded vessels after initial MT. General information, clinical features, radiological data, and surgery-related data between the 2 groups of patients were collected and compared. Significant variables ( P<0.1) from univariate analysis were included into a multivariable Logistic regression model to explore the relation between COVES and FPE. Predictive value of COVES in FPE was assessed using receiver operating characteristic (ROC) curve. Results:Out of the 143 patients enrolled in this study, 52 were into the FPE group and 91 were into the non-FPE group. Compared with the non-FPE group, the FPE group had higher COVES scores, higher proportion of patients with good cerebral venous drainage (COVES≥3), smaller core infarct volume, and shorter time from femoral artery puncture to vessel recanalization, with significant differences ( P<0.05). Multivariable Logistic regression analysis revealed that COVES was still corelated with FPE after adjusting covariates such as baseline NIHSS scores, core infarct volume, and time from femoral artery puncture to vessel recanalization ( OR=0.730, 95% CI: 0.567-0.940, P=0.015). ROC curve demonstrated that the combined model of COVES with aforementioned factors (COVES scores+baseline NIHSS scores+core infarct volume+time from femoral artery puncture to vessel recanalization) had an area under the curve of 0.757 (95% CI: 0.672-0.841, P<0.001), with sensitivity of 61.5% and specificity of 78.0%. Conclusion:Favorable cerebral venous drainage is an independent predictor for successful FPE in patients with acute anterior circulation large vessel occlusion accepted MT.

Objective:To study the antitumor activity of zeylenone in colorectal cancer and its related regulatory mechanism.Methods:Human colorectal cancer cells(DLD-1 and HCT116)and control cell(HcoEpic)were treated with different concentrations of zeylenone(0,2.5,5,10 and 20 μmol/L)for 48 h.Cell viability of DLD-1,HCT116 and HcoEpic were determined by CCK-8 kit.TUNEL staining was used to evaluate cell apoptosis.Caspase-3 activity and LDH level were measured by ELISA.Relative levels of M1 and M2 polarization markers,p-PI3K/PI3K and p-AKT/AKT were detected by Western blot and qRT-PCR.DLD-1 cells were subcuta-neously injected into the armpit of nude mice to establish a mouse xenograft tumor model.Intraperitoneal dose of zeylenone given to nude mice was 30 mg/kg,administered once every two days.After 2 weeks,the effect of zeylenone on growth of colorectal cancer tumors was detected.Results:Zeylenone inhibited cell activity and promoted cell apoptosis in colorectal cancer cells.Additionally,zeylenone stimulated M1-polarization and inhibited M2-polarization of tumor-associated macrophages(P<0.05).PI3K/AKT signaling pathway was inhibited by zeylenone in colorectal cancer cells(P<0.05).PI3K/AKT signaling pathway activator(740 Y-P)attenuated the effect of zeylenone on colorectal cancer cells.In mouse xenograft model,zeylenone inhibited the growth of colorectal cancer tumors(P<0.05).Conclusion:Zeylenone can inhibit colorectal cancer cell activity,promote colorectal cancer cell apoptosis,and promote M1 po-larization of tumor-associated macrophages by regulating PI3K/AKT signaling pathway,ultimately inhibiting the progression of colorec-tal cancer.

Objective    To compare and analyze the therapeutic effects of robot-assisted lobectomy and segmentectomy for stage ⅠA non-small cell lung cancer with a diameter≤2 cm. Methods    A total of 181 patients with pathologically confirmed stage ⅠA non-small cell lung cancer (diameter≤2 cm) who underwent robot-assisted lobectomy and segmentectomy in our hospital from 2018 to 2021 were included. There were 74 males and 107 females with an average age of 57.50±10.60 years. They were divided into two groups according to the surgical procedure: a segmentectomy group (85 patients) and a lobectomy group (96 patients). Results    There was no statistically significant  difference between the two groups in terms of clinical data such as age, gender, smoking history, basic disease, pathological type, tumour diameter, operative time, postoperative 24 h drainage volume and overall complications (P>0.05). The intraoperative blood loss (33.88±16.26 mL vs. 39.27±19.48 mL, P=0.046), groups of dissected lymph nodes (4.76±1.19 vs. 5.52±1.46, P=0.000), number of dissected lymph nodes (14.81±7.23 vs. 18.06±7.70, P=0.004) and postoperative 72 h drainage volume (561.65±225.31 mL vs. 649.84±324.34 mL, P=0.037) of patients in the segmentectomy were less than those in the lobectomy group. The chest drainage time (5.49±3.92 d vs. 7.60±4.96 d, P=0.002) and postoperative hospital stay time (7.47±4.16 d vs. 9.67±5.50 d, P=0.003) were shorter than those in the lobectomy group. There was no conversion to thoracotomy or perioperative death in the two groups. The postoperative follow-up rate was 100.0% with a longest follow-up time of 48 months. The 3-year recurrence-free survival rates of the segmentectomy group and lobectomy group were 87.7% and 92.4%, respectively (P=0.465). Conclusion    The da Vinci robot-assisted lobectomy and segmentectomy are safe and feasible surgical procedures for patients with stage ⅠA non-small cell lung cancer (diameter≤2 cm), with a similar 3-year recurrence-free survival rate. The lobectomy group has more lymph nodes dissected, while the segmentectomy group is superior to the lobectomy group in terms of intraoperative blood loss, postoperative 72 h chest drainage volume, chest drainage time and postoperative hospitalization time.

Objective     To compare the effects of anterior mediastinal tumor resection by the Da Vinci robot and video-assisted thoracoscopy via subxiphoid approach. Methods     A retrospective cohort study was conducted to continuously enroll patients who underwent anterior mediastinal tumor resection between 2020 and 2021 in our department. They were divided into a robotic group and a subxiphoid thoracoscopic group. The differences of general indexes (intraoperative blood loss, postoperative drainage volume, postoperative catheterization time, postoperative hospital stay), postoperative pain visual analogue scale (VAS), perioperative declining levels of hemoglobin, hematocrit, serum prealbumin and serum albumin were compared and analyzed. Results     A total of 113 patients were enrolled. There were 76 patients in the robotic group (46 males and 30 females, median age of 50 years) and 37 patients in the subxiphoid thoracoscopic group (21 males and 16 females, median age of 51 years). Intraoperative blood loss, postoperative drainage volume, postoperative catheterization time and postoperative hospital stay of the robotic group were better than those in the subxiphoid thoracoscopic group (P<0.05). The postoperative VAS scores in the robotic group were lower than those in the subxiphoid thoracoscopic group, but there was no statistical difference (P>0.05). Perioperative declining levels of hemoglobin, and hematocrit were not statistically different between the two groups (P>0.05). Declining levels of serum prealbumin, and serum albumin in the robotic group were lower than those in the subxiphoid thoracoscopic group (P<0.05). Conclusion     Da Vinci robotic and subxiphoid video-assisted thoracoscopic surgeries for the treatment of anterior mediastinal tumors are both safe and reliable, with short postoperative hospital stay, mild postoperative pain and quick recovery. Da Vinci robot surgery has a slight advantage in the treatment outcome.

Objective To construct a rapid prediction system to improve the accuracy and efficiency of evaluation of the consequences of nuclear accidents at a field scale. Methods Base on a diagnostic wind field model and Lagrangian particle diffusion, we established a rapid prediction method for wind field and pollutant dispersion around complex underlying surfaces within a field scale, in a way of visual discrimination of buildings and vegetation distribution. With data simulation and the use of a real urban field example, the simulated results were compared with wind tunnel test measurements and computational fluid dynamics results to study the influence of complex underlying surfaces on wind field and pollutant transport in the region. Results The rapid prediction system could clearly simulate the high-resolution wind field and pollutant concentration distribution of the region in about five minutes. It could interface with geographic information software and couple with a mesoscale weather prediction model. In terms of accuracy, the system performed well in wind field simulation, with the fractional deviations of wind speed and wind direction being 0.33 and −0.08, respectively. Concentration field simulation was greatly affected by the wind field, and the ratios of simulated concentrations to observed concentrations were between 0.05 and 3.4, except for a few low concentration points. Conclusion The rapid prediction system can effectively simulate the distribution characteristics of the flow field and improve calculation efficiency when ensuring calculation accuracy, which provides an important reference for emergency response to nuclear accidents.

Objective:To document any effect of environmental enrichment on nerve regeneration in a mouse model of sciatic nerve compression and explore its mechanism.Methods:A crushed sciatic nerve model was successfully established in 22 C57BL/6 mice, and they were then randomly divided into an intervention group and a control group. The mice of the intervention group were raised in a cage with an enriched environment, while those of the control group were kept in a standard cage. Two weeks later, both groups′ gait was analyzed and the compound muscle action potential (CMAP) of the sciatic nerve was measured. The proportion of myelinated sciatic nerve fibers was examined using toluidine blue staining, and the expression of myelin basic protein (MBP), growth associated protein-43 (GAP43) and p75 neurotrophin receptor (p75 NTR) was measured using immunofluorescence intensity. Results:①The latency of the CMAP [(1.05±0.04)ms] was significantly shortened in the intervention group compared with the control group and the amplitude was significantly higher. ②Gait analysis showed a significant increase in the average contact intensity, stride length and stride rate of the intervention group compared with the control group. However, the step axis angle of the intervention group was significantly smaller than in the control group on average. ③The stained nerve fibers in the intervention group were orderly and dense, and the average number of myelinated fibers was significantly greater than in the control group. ④Quantitative analysis of the immunofluorescence showed that the levels of MBP, GAP43 and p75 NTR in the sciatic nerves of the intervention group were, on average, significantly higher than in the control group. Conclusion:An enriched environmental can promote the regeneration and functional recovery of crushed sciatic nerves by promoting the proliferation and myelination of Schwann cells.