Objective To investigate the incidence of metabolic syndrome among obese children in clinics. Methods One hundred and thirteen obese children aged 7 to 14 years were selected from clinics of nutrition(case group),and another 366 healthy students aged 7 to 14 years were served as controls.Height,body weight,waist circumference,hip circumference,blood pressure and liver ultrasound were measured,related biochemical parameters such as fasting blood glucose,fasting insulin,serum total cholesterol,triglyceride(TG),hiSh density lipoprotein and low density lipoprotein were detected,and the incidences of metabolic syndrome were obtained in two groups.Insulin resistance(IR)was evaluated by homeostasis model assessment(HOMA). Results There was no significant difference in age and gender between case group and control group(P>0.05).Body weight,body mass index(BMI),waist circumference,hip circumference,waist to hip ratio,systolic blood pressure,diastolic blood pressure,fasting blood glucose,fasting insulin,HOMA index and TG in case group were significantly higher than those in control group(P<0.01).The 75th percentile of HOMA index in control group was 3.28,and IR subgroup and non-IR subgroup were divided according to this cutpoint.In case group,body weight,BMI,waist circumference and TG in non-IR subgroup were significantly higher than those in IR subgroup (P< 0.05).Metabolic syndrome occurred in 51 cases(45.1%) in case group.The incidence of metabolic syndrome was higher in IR subgroup than that in non-IR group(50.0% vs 21.1%)(P<0.05). Conclusion The prevalence of metabolic syndrome is higher in overweight and obese children.IR has a close relationship with metabolic syndrome.

Objective : To investigate the characteristics of mortality of falls among the elderly in Haishu District, Ningbo City, Zhejiang Province, so as to provide insights into the improvement of fall control strategy. Methods: Data pertaining to surveillance of falls in Haishu District from 2017 to 2022 were collected from the Ningbo Municipal Digital Disease Prevention and Control Platform. The trends in mortality of falls in Haishu District from 2017 to 2022 were evaluated using annual percent change (APC). The distribution of demographic characteristics, locations of falls, injury sites, interval from fall occurrence to death and type of falls specified by age were descriptively analyzed. Results: A total of 1 206 deaths occurred due to falls among the elderly at ages of 60 years and older in Haishu District from 2017 to 2022, including 414 men and 612 women, with a male to female ratio of 0.67∶1. The average age was (85.20±8.42) years. The average annual crude mortality and standardized mortality of were 101.10/105 and 85.40/105 from 2017 to 2022, respectively, with no obvious changing trends (APC=5.797% and 5.337%, all P>0.05). The standardized death rate of falls in females was higher than that of males (102.60/105 vs. 69.55/105, P<0.05). The average annual mortality of falls appeared a tendency towards a rise with age among the elderly at ages of 60 years and older, with the highest mortality of 147.18/105 seen in the elderly at ages of 85 years and older. Falls predominantly occurred at home (836 cases, 81.48%) and on the same level (881 cases, 85.87%). The injury sites were mainly lower limbs (388 cases, 37.82%) and head (308 cases, 30.02%). In addition, the interval from fall occurrence to death mainly ranged from 24 hours to 6 months (757 cases, 73.79%). Conclusion The mortality of falls appeared a tendency towards a rise with age among the elderly at ages of 60 years and older in Haishu District from 2017 to 2022, which was higher in women than in men. The location of falls was predominantly at home and the type of falls predominantly at the same level. High attention to residential environments, and reinforcement of gender- and age-specific interventions are recommended.

Objective To investigate the effects and mechanism of (-)-epigallocatechin-3-gallate (EGCG) on white adipose tissue angiogenesis in high fat diet rats.Methods Twenty-four male weaning SD rats were randomly divided into normal control group,high fat diet group and EGCG intervention group,8 rats in each group.Normal control group were fed with normal diet,high-fat diet group were fed with high-fat diet,EGCG intervention group were fed with high-fat diet along with intragastric administration of 200 mg/ (kg · d) EGCG.After 8 weeks,the rats were sacrificed.The adipocyte size and vascular density of the abdominal adipose tissue in rats in each group were observed under the microscope.The serum vascular endothelial growth factor (VEGF) concentration was detected by Elisa Kit.RT-PCR was used to detect the expression of VEGF,nuclear factor E2 (Nrf2),heme oxygenase-1 (HO-1),catalase (CAT),SOD,GPx,interleukin-6 (IL-6) and monocyte chemoattractant protein-1 (MCP-1) mRNA.Results The adipocyte size,number of vascular/each adipocyte,serum VEGF concentration and VEGF mRNA expression in adipose tissue of high fat diet group were significantly higher than those of normal control group (all P＜0.05).EGCG can significantly reduce the above indicators of high fat diet group (all P＜0.05).The expression of Nrf2,HO-1,SOD,GPx and CAT mRNA in adipose tissue of EGCG group was significantly higher than those in high fat diet group and normal control group (all P＜0.05).The expression of MCP-1 and IL-6 mRNA in adipose tissue of EGCG group was significantly lower than that in high fat diet group (all P＜0.05).Conclusion EGCG can decrease the production of serum VEGF,vascular density and the expression of VEGF mRNA in white adipose tissue of high fat diet rats,and inhibit the angiogenesis in white adipose tissue possibly due to its up-regulation of Nrf2/HO-1 pathway to increase the expression of antioxidant enzymes (SOD,CAT,GPx),reduce ROS production and decrease the inflammatory response.

Objective To evaluate the relationship between concurrent myocardial bridge at anterior descending branch and the formation of coronary atherosclerosis plaques by using transluminal attenuation gradient (TAG). Methods A total of 198 patients underwent coronary CTA in Renji Hospital of Shanghai Jiaotong University School of Medcine from June 2017 to March 2018 and the results showed the anterior descending myocardial bridge. The data were retrospectively analyzed. All patients completed the coronary CTA with 320?row detector CT. According to the manifestations of myocardial bridge on CTA,the patients were divided into deep and superficial myocardial bridge groups. According to whether the patients were complicated with coronary atherosclerotic plaques, they were divided into isolated myocardial bridge group and myocardial bridge with coronary atherosclerotic plaque group. The thickness and length of myocardial bridge, the volume of coronary atherosclerotic plaques at the site of myocardial bridge, the pre?bridge and post?bridge TAG values, and the K ratio were recorded. Independent sample t test (normal distribution) or Mann?Whitney U test (skewed distribution) was used to compare the difference of measurement data among different groups. χ2 test was used to compare the difference of enumeration data among different groups. Pearson correlation test was used to analyze the correlation among pre?bridge and post?bridge TAG values,K ratio,thickness and length of myocardial bridge and plaque volume. The influence of above indexes on plaque occurrence was analyzed by binary logistic regression analysis. The relationship between main influence indexes and plaque formation was analyzed by receiver operating characteristic curve (ROC). Results Ninety nine patients had isolated myocardial bridge,99 with myocardial bridge and coronary atherosclerotic plaques,27 with superficial myocardial bridge and 171 with deep myocardial bridge. All atherosclerotic plaques occurred in pre?bridge and the mean volume of plaques was (91.6±83.0)mm3. The differences in sex, age, height, body weight and body mass index werenot statistically significant between isolated myocardial bridge group and myocardial bridge with coronary atherosclerotic plaque group (all P>0.05). The difference in pre?bridge TAG value was statistically significant between the isolated myocardial bridge group and myocardial bridge with coronary atherosclerotic plaque group (all P<0.05), but not statistically significant in post?bridge TAG value and K ratio (all P>0.05). The difference in pre?bridge and post?bridge TAG values and K value was not statistically significant between the superficial group and the deep group (all P>0.05). There was a weak negative correlation (r=-0.205,-0.316,-0.339,respectively,P<0.05) between the plaque volume and pre?bridge&post?bridge TAG values and K ratio. The pre?bridge TAG value significantly affected the plaque formation (P=0.014) and the odds ratio was 0.884 (95% CI 0.801 to 0.976). While other factors had no significant effects on plaque formation (all P>0.05). The area under curveof plaque formation promoted by pre?bridge TAG value was 0.582. When the diagnostic critical value was －37.26 HU/mm, the sensitivity and specificity of pre?bridge TAG value in plaque formation were 31.31% and 81.82%, respectively. Conclusion The TAG value of anterior descending bridge is an independent risk factor for plaque occurrence. The abnormal TAG value of anterior descending myocardial bridge can be detected early by CTA.

Objective:To explore the feasibility of quantitative evaluation of extracellular volume (ECV) fraction in acute ST-segment elevation myocardial infarction (STEMI) by dual-layer spectral detector CT.Methods:The clinical and imaging data of 20 patients with STEMI who underwent cardiac contrast-enhanced CT and MRI from January to October 2019 in Renji Hospital affiliated to Shanghai Jiaotong University School of Medicine were retrospectively analyzed.The dual spectral detector was used in the enhanced CT scan of the coronary artery with retrospectively gate and the late iodine enhancement with prospective gate. Conventional image and holographic spectral image were obtained by iterative and spectral reconstruction. The short axis image of the heart matched with MR image was obtained by multiplanar reconstruction. Based on the data of spectral based image, the IDD map was reconstructed for the calculation of myocardial CT-ECV during the late iodine enhancement. ECV of infarcted myocardium, salvageable myocardium and remote myocardium based on CT and MRI were calculated respectively. Bland-Altman consistency test and intra group correlation coefficient analysis (ICC) were used to compare the consistency of two measurements and different methods. The correlation between CT-ECV and MRI-ECV was compared by Spearman method.Results:The CT-ECV values of infarcted, salvageable, and remote myocardium were 51.21 (49.27, 53)%, 38.64 (36.17, 40)%, and 51.21 (49.27, 53)%, respectively. The difference was statistically significant ( H= 43.17, P<0.01). The CT-ECV value of infarcted myocardium was significantly higher than that of salvageable myocardium and remote myocardium ( Z=-24.60, 35.40, P<0.01), but there was no significant difference between salvageable myocardium and remote myocardium ( Z= 10.80, P=0.15). The T 1 values of infarcted myocardium, salvageable myocardium and remote myocardium were (1 554.85±70.94), (1 443.85±67.28) and (1 307.05±91.73) ms respectively, the difference was statistically significant ( F=51.35, P<0.01). The T 1 value of infarcted myocardium was higher than that of salvageable myocardium and remote myocardium ( t=-5.07, 9.55, P<0.01), and salvageable myocardium was significantly higher than that of remote myocardium ( t=5.38, P<0.01). The MRI-ECV values of infarcted myocardium, salvageable myocardium and remote myocardium were 55.00 (49.27, 57.75)%, 33.50 (29.00, 35.00)%,and 27.00 (26.00, 29.00)%, respectively. The difference was statistically significant ( Z= 47.12, P<0.01). MRI-ECV of infarcted myocardium was significantly higher than that of salvageable myocardium and remote myocardium ( Z=37.45, -20.30, P< 0.01), and salvageable myocardium was significantly higher than that of remote myocardium ( Z = 17.15, P<0.05). The difference between CT-ECV and MRI-ECV measured by two physicians was good. The bias of Bland-Altman analysis was -0.1% (95% CI:-5.5%-5.2%), 0.8% (95% CI:-9.8%-8.2%), and the ICC values were 0.92 and 0.94, respectively. The bias of Bland-Altman analysis in CT-ECV and MRI-ECV consistency test was 4.00% (95% CI:-9.0%-16.9%) and ICC value was 0.88, which had a good correlation ( r=0.75, P=0.001). Conclusions:The iodine density based ECV fromdual-layer spectral detector CT can be used to quantitatively evaluate the changes of extracellular space after acute STEMI, which is helpful to quantitatively evaluate the histological changes after myocardial ischemia.

Objective To analyze the epidemic characteristics of road traffic injuries in Haishu District of Ningbo City and to provide evidence for effective prevention strategies. Methods Based on the "Ningbo Inpatient Injury Monitoring Report Card"， we analyzed the epidemiological characteristics and the influencing factors of hospitalization expenses using the road traffic injuries cases collected from 2015-2019 of Haishu District were analyzed. Results The ratio of male to female was 1.46∶1 among the 8 543 cases. Most cases were between 25 to 64 years old. There were 83.09% cases had junior high school education or below. The top three occupations in the cases were preschoolers， transportation workers， and retired people. Road traffic injuries occurred more frequently in spring for preschoolers and in summer vacation for school-age children. Motor vehicle accidents caused more serious injuries than non-motor vehicle accidents （χ ²=59.069， P<0.001）. The economic burden caused by the traffic injuries was heavy. The main influencing factors of hospitalization expenses for road traffic injuries were age， gender， severity of injury and the attribute of injury. The median hospitalization cost was 12 400 Yuan， and the interquartile distance was 23 400 Yuan. Conclusion Road traffic injury not only causes serious bodily injury， but also increases the economic burden of family and society directly or indirectly. Traffic safety education should be carried out for key groups to prevent the occurrence of road traffic injuries.

Objective : To explore the main points of clinical treatment of fourth branchial cleft deformity in special positions and to provide a reference for clinical practice. Methods: The clinical data of one case of a fourth branchial cleft deformity that occurred in the left anterior chest wall with a fistula below the clavicle are summarized and combined with a literature review. Results: The patient complained of repeated swelling and pain under the left anterior chest wall for 2 months. A 10 mm×10 mm fistula with yellow clear liquid exudate from the fistula was observed on the left side below the clavicle. A 20 mm×20 mm×10 mm swelling was immediately adjacent at the superficial cervicothoracic junction of the upper sternoclavicular joint, with no fluctuation and poor activity; this swelling produced slight pain upon pressing. Imaging examinations pointed to cystic lesions. The primary diagnosis was a fourth branchial deformity. A small amount of methylene blue was injected into the patient's subclavian fistula, and a supraclavicular T-shaped incision was made where the cyst contacted the fistula. By turning the flap, all the methylene blue-stained areas and adjacent submucosal tissues were exposed. During the operation, a mass was found on the sternum. The platysma was found deep in the notch, which was incised before excising the surrounding area. The pathological result is the fourth branchial cleft deformity. After 1 week and 3 months of follow-up, the patients had no discomfort and no recurrence. A review of the relevant literature shows that the fourth branchial cleft deformity is a congenital developmental abnormality that occurs in 1% of all branchial cleft deformity. It often presents as a fistula, cyst, or sinus tract and is anatomically located at the neck root and supravicular region. The fistula is close to the medial lower boundary of the sternocleidomastoid muscle. The diagnosis is often made based on its anatomical location, imaging examinations and, ultimately, pathology. The differential diagnoses include other cervical swellings, such as hemangioma and a thyroglossal duct cyst. Surgical resection is a commonly used treatment method. In recent years, endoscopic positioning and internal fistula burning have had good curative effects for recurrent fourth branchial cleft deformity, with a small chance of recurrence or cancer. Conclusion Given its unique position, clinicians should make full use of imaging methods to determine the size, anatomical location and course of the lesion when treating the fourth branchial cleft deformity to ensure the complete and safe surgical resection of the lesion and prevent recurrence.

In recent years, with the rapid development of Chinese domestic surgical robot technology and the expansion of the application market, the "industry-university-research-medicine" collaborative innovation transformation mode has gradually developed and formed. Medical institutions play an important role in multi-party cooperation with enterprises, universities, and research institutes, as well as in product planning, technology research and development, achievement transformation, and personnel training. On the basis of reviewing the current situation of the development of the "industry-university-research-medicine" collaborative innovation transformation mode of domestic surgical robots, this study explores the multiple roles played by medical institutions in this mode and challenges, further putting forward corresponding recommendations.
Humans ; Robotics ; Universities ; Medicine ; Industry ; Technology