Objective: To investigate the availability and use of child safety seats among children aged 0-3 years, so as to provide the basis for improving riding safety for children. Methods: Parents of children aged 0-3 years in Huangpu District, Shanghai Municipality, were recruited using the stratified multistage random sampling method from May to July 2024. Demographic information, family travel patterns, the use of child safety seat and related health beliefs were collected using questionnaire surveys. Factors affecting the use of child safety seats were identified using a multivariable logistic regression model. Results: Totally 514 valid questionnaires were recovered, with an effective rate of 96.98%. The respondents included 122 fathers (23.74%) and 392 mothers (76.26%), with a median age of 34.00 (interquartile range, 5.00) years. There were 446 families equipping with child safety seats, accounting for 86.77%; and 169 families using child safety seats, accounting for 32.88%. Multivariable logistic regression analysis showed that the parents who had children aged >1-2 years (OR=0.597, 95%CI: 0.366-0.973), travelled 2-4 times per month (OR=0.359, 95%CI: 0.213-0.607) or once per month or less (OR=0.384, 95%CI: 0.202-0.729), and scored high in perceived barrier (OR=0.634, 95%CI: 0.486-0.827) were less likely to use child safety seats; the parents who had children with local household registration (OR=2.506, 95%CI: 1.356-4.633), travelled 5-<10 km (OR=1.887, 95%CI: 1.148-3.101) or ≥10 km (OR=2.319, 95%CI: 1.355-3.967), always wore seat belts (OR=2.342, 95%CI: 1.212-4.524), scored high in perceived susceptibility (OR=1.392, 95%CI: 1.091-1.778) and self-efficacy (OR=1.413, 95%CI: 1.156-1.727) were more likely to use child safety seats. Conclusions Equipping family cars with child safety seats and using them can prevent and reduce traffic injuries among children aged 0-3 years. It is recommended to strengthen publicity to promote the use of child safety seats.

Objective: To investigate the trends in incidence and mortality of lung cancer in Huangpu District, Shanghai Municipality from 2002 to 2019, so as to provide the evidence for formulating lung cancer prevention and control measures. Methods: Data of lung cancer incidence and mortality among residents in Huangpu District from 2002 to 2019 were collected through the Shanghai Cancer Registration and Reporting Management System. The crude incidence and mortality of lung cancer was calculated, and standardized by the data from the Chinese Fifth National Population Census in 2000 (Chinese-standardized rate) and the Segi's world standard population in 1960 (world-standardized rate). The trends in incidence and mortality of lung cancer among residents by age and gender were evaluated using annual percent change (APC). Results: A total of 12 965 cases of lung cancer were reported in Huangpu District from 2002 to 2019, and the crude incidence rate was 80.66/105, the Chinese-standardized incidence rate was 34.54/105, and the world-standardized incidence rate was 31.30/105, all showing upward trends (APC=4.588%, 2.933% and 3.247%, all P<0.05). A total of 10 102 deaths of lung cancer were reported, and the crude mortality rate was 62.30/105, showing an upward trend (APC=0.959%, P<0.05); the Chinese-standardized mortality was 25.93/105, and the world-standardized mortality was 22.05/105, both showing downward trends (APC=-1.282% and -1.263%, both P<0.05). The crude incidence and mortality rates of lung cancer in males were higher than those in females (101.39/105 vs. 60.52/105, 85.45/105 vs. 39.87/105, both P<0.05). The crude incidence and mortality rates of lung cancer showed upward trends with age (both P<0.05), reaching their peaks in the age groups of 80-<85 years (341.37/105) and 85 years or above (355.97/105), respectively. Conclusions The incidence of lung cancer showed an upward trend, while the mortality showed a downward trend in Huangpu District from 2002 to 2019. Elderly men were the high-risk group for lung cancer incidence and mortality.

Cardiac fibrosis is characterized by an elevated amount of extracellular matrix (ECM) within the heart. However, the persistence of cardiac fibrosis ultimately diminishes contractility and precipitates cardiac dysfunction. Circular RNAs (circRNAs) are emerging as important regulators of cardiac fibrosis. Here, we elucidate the functional role of a specific circular RNA CELF1 in cardiac fibrosis and delineate a novel feedback loop mechanism. Functionally, circ-CELF1 was involved in enhancing fibrosis-related markers' expression and promoting the proliferation of cardiac fibroblasts (CFs), thereby exacerbating cardiac fibrosis. Mechanistically, circ-CELF1 reduced the ubiquitination-degradation rate of BRPF3, leading to an elevation of BRPF3 protein levels. Additionally, BRPF3 acted as a modular scaffold for the recruitment of histone acetyltransferase KAT7 to facilitate the induction of H3K14 acetylation within the promoters of the Celf1 gene. Thus, the transcription of Celf1 was dramatically activated, thereby inhibiting the subsequent response of their downstream target gene Smad7 expression to promote cardiac fibrosis. Moreover, Celf1 further promoted Celf1 pre-mRNA transcription and back-splicing, thereby establishing a feedback loop for circ-CELF1 production. Consequently, a novel feedback loop involving CELF1/circ-CELF1/BRPF3/KAT7 was established, suggesting that circ-CELF1 may serve as a potential novel therapeutic target for cardiac fibrosis.

Objective:To investigate the clinical significance of CD105 and erythropoietin-producing hepatocellular receptor A2 (EPHA2) expressions in breast invasive ductal carcinoma and the effects of the combination of diabetes mellitus on CD105 and EPHA2 expressions.Methods:A retrospective case series study was conducted. A total of 74 patients with breast invasive ductal carcinoma in Affiliated Hospital of Jiangsu University from June 2019 to June 2024 were selected, and paraffin specimens from the patients after surgery were collected. Immunohistochemistry SP method was used to detect the expressions of CD105 and EPHA2 proteins in specimens. CD105 expression was expressed as the number of CD105 labeled microvessels, and EPHA2 expression was expressed as the proportion of EPHA2 positive expression area. The correlation of CD105 and EPHA2 expressions with the clinicopathological characteristics and diabetes mellitus of patients, as well as the relationship between the expressions of CD105 and EPHA2 were analyzed. Cox proportional hazards model was used to make univariate and multivariate analysis of the factors influencing overall survival of patients.Results:All 74 patients were female. The median age was 60 years old, 44 patients (59.46%) had tumor grade ≥ grade 3, 36 patients (48.65%) had tumor diameter ≥ 2 cm, 28 patients (37.84%) had lymph node metastasis, 30 patients (40.54%) had nerve vessel invasion, and 32 patients (43.24%) had diabetes mellitus. There were statistically significant differences in the proportion of patients with different age, tumor diameter, TNM stage, lymph node metastasis or not and nerve vessel invasion or not between diabetes mellitus group and non-diabetes mellitus group (all P < 0.05). The number of CD105 marking the microvessel was (32±9) and (24±8), respectively in diabetes mellitus group and non-diabetes mellitus group, and the difference was statistically significant ( t = 3.63, P < 0.010); the positive expression area proportion of EPHA2 was (19±5)% and (15±4)%, respectively, and the difference was statistically significant ( t = 3.85, P < 0.010). The expression of CD105 was related to the duration of diabetes mellitus, tumor diameter, TNM stage and lymph node metastasis or not (all P < 0.05), and the expression of EPHA2 was related to tumor diameter and TNM stage (all P < 0.05). Pearson correlation analysis showed a positive correlation between CD105 and EPHA2 expression ( r = 0.75, P < 0.001). The differences in overall survival of patients with or without diabetes mellitus and patients with different CD105 and EPHA2 expressions were statistically significant (all P < 0.05). Multivariate analysis showed that CD105 expression ( HR = 1.10, 95% CI: 1.04-1.16, P = 0.001) and EPHA2 expression ( HR = 1.35, 95% CI: 1.10-1.66, P = 0.005) were independent factors influencing the overall survival of patients with breast invasive ductal carcinoma. Conclusions:The expressions of CD105 and EPHA2 are independent prognostic factors in patients with breast invasive ductal carcinoma, and diabetes mellitus can promote the expressions of CD105 and EPHA2, which may increase the risk of poor prognosis.

Objective:To evaluate the long-term outcomes and predictors of coronary atherosclerotic lesions deemed functionally non-ischemic (quantitative flow ratio(QFR)>0.80) and deferred from intervention.Methods:This study is a post-hoc analysis of the FAVOR Ⅲ China trial, which enrolled 3 825 patients with stable or unstable angina pectoris or with myocardial infarction occurring at least 72 hours prior to screening, between December 5, 2018 and January 9, 2020 from 26 research centers in China. Coronary vessels with QFR>0.80 and without interventional treatment were analyzed in this study. The primary endpoint was 3-year target vessel revascularization. Vessels with revascularization (revascularized group) during follow-up were matched 1∶1 using propensity score matching to comparable vessels without revascularization (non-revascularized group). Multivariate Cox regression analysis was used to identify the risk factors for target vessel revascularization (TVR).Results:A total of 6 212 functionally negative vessels with deferred intervention were included in the final analysis, among which 153 vessels (2.5%) underwent TVR during a 3-year follow-up. Prior to propensity score matching, 6 059 vessels comprised the non-revascularized group. At the vessel level, compared to the non-revascularized group, the revascularized group exhibited a significantly higher proportion of males (79.1% (121/153) vs. 70.2% (4 253/6 059), P=0.018), higher body mass index ((25.6±4.0) kg/m2 vs. (24.3±5.2) kg/m2, P=0.003), and a higher prevalence of hypertension (73.9% (113/153) vs. 65.1% (3 944/6 059), P=0.025). And 152 pairs of vessels were successfully matched. Multivariate Cox regression analysis identified in-stent restenosis lesions ( HR=2.59, 95% CI 1.28-5.23, P=0.008) as an independent risk factor for target vessel revascularization. Conclusions:Coronary lesions classified as functionally non-ischemic at baseline are not entirely stable and may progress to lesions that requiring revascularization over time. In-stent restenosis emerges as a critical independent predictor of revascularization.

Objective:To investigate the influencing factors for gastroesophageal reflux disease (GERD) after laparoscopic Heller-Dor surgery for esophageal achalasia.Methods:The retrospective case-control study was conducted. The clinical data of 210 patients with esophageal achalasia who were admitted to Shanxi Provincial Cancer Hospital from January 2021 to December 2023 were collected. There were 119 males and 91 females, aged (47±12)years. All patients underwent laparoscopic Heller-Dor surgery. Observation indicators: (1) surgical situations; (2) follow-up; (3) influencing factors for GERD after laparoscopic Heller-Dor surgery; (4) development and evaluation of a predictive model for GERD after laparoscopic Heller-Dor surgery. Univariate and multivariate analyses were performed using stepwise Logistic regression. Results of multivariate analysis were used to construct a nomogram in predicting GERD. The predictive performance was assessed using the area under the receiver operating characteristic curve. The calibration curve was used to evaluate the accuracy of the model, and the decision curve was used to assess the overall net benefit of the model.Results:(1) Surgical situations. All 210 patients underwent laparoscopic Heller-Dor surgery. The operation time was (128±31)minutes, volume of intraoperative blood loss was (25±9)mL, and length of lower esophageal sphincter (LES) myotomy was (5±3)cm. The length of low esophageal myotomy >6 cm was performed in 49 patients, and length of gastric fundus myotomy >2 cm was performed in 58 patients. Intraoperative mucosal perforation occurred to 3 patients and was repaired intraoperatively. One patient required conversion to open surgery. Postoperative complications occurred in 18 patients. The duration of postoperative hospital stay was (4.3±2.4)days. (2) Follow-up. All 210 patients were followed up for 4(range,7-33)months after surgery. During follow-up, 32 pati-ents had GERD, including 17 cases presenting dysphagia and 25 cases presenting acid regurgitation and heartburn (the same patient may have two symptoms). There were 29 cases with body mass index (BMI) >28 kg/m2. Symptom severity scores of 210 patients showed heartburn of 0.6(range, 0-3.0), reflux of 0.7(range, 0-3.0), chest pain of 0.4(range, 0-2.0), cough and hoarseness of 0.5(range, 0-2.0), nausea and vomiting 0.3(range, 0-2.0), dysphagia 0.8(range, 0-3.0). The LES pressure was (15±8)mmHg (1 mmHg=0.133 kPa), LES relaxation rate was 81%±13.0%, and integrated relaxation pressure was (9±6)mmHg. Esophageal manometry classification showed type Ⅰ, Ⅱ, and Ⅲ in 0, 8, and 0 patients, respectively. There were 208 patients achieved symptom relief after drug or symptomatic treatment. Only two patients with severe symptoms were unresponsive to medication and subsequently underwent surgery at another hospital, with symptoms improving postoperatively. (3) Influen-cing factors for GERD after laparoscopic Heller-Dor surgery. Results of multivariate analysis showed that male, smoking history, length of lower esophageal myotomy >6 cm, and postoperative BMI >28 kg/m2 were independent risk factors for GERD after laparoscopic Heller-Dor surgery ( odds ratio=4.02, 6.34, 5.41, 7.38, 95% confidence interval as 1.50-10.78, 3.31-12.31, 1.77-13.47, 2.80-15.42, P<0.05). (4) Development and evaluation of a predictive model for GERD after laparoscopic Heller-Dor surgery. A predictive nomogram model for GERD was constructed based on the results of multivariate analysis. The receiver operating characteristic curve of predictive nomogram model for GERD had an area under curve of 0.91 (95% confidence interval as 0.82-0.97), demonstrating good discrimination. The calibration curve showed good agreement between predicted and observed probabilities, with a mean absolute error of 0.033. The decision curve demonstrated that within a threshold probability range of 0.2-0.8, the predictive model had greater net benefit than "treat-all" or "treat-none" strategies, indicating clinical utility of this model in clinical decision. Conclusions:Male, smoking history, length of lower esophageal myotomy >6 cm, and postoperative BMI >28 kg/m2 are independent risk factors for GERD after laparoscopic Heller-Dor surgery for esophageal achalasia. The predictive model for GERD after laparoscopic Heller-Dor surgery based on these factors shows strong predictive accuracy.

Objective:To explore the effect of neck muscle group exercise on setup errors in postoperative radiotherapy for head and neck cancers.Methods:A total of 126 head and neck cancer patients scheduled for radiotherapy at the First Affiliated Hospital, Air Force Medical University from February 2021 to October 2022 were prospectively enrolled. Among these patients, four patients discontinued treatment due to personal reasons, and the remaining 126 patients were randomly divided into an experimental group and a control group, with 61 patients in each group. The experimental group received neck muscle group exercise, while the control group received routine treatment without intervention. Cone-beam CT (CBCT) scans were performed weekly to measure setup errors at the levels of the clivus and the 4 th and 7 th cervical vertebrae (C4 and C7, respectively). Three-dimensional displacement, systematic errors, and random errors were calculated for each level. The appropriate margins of planning target volumes (PTVs) were determined using the Van Herk formula. Results:Baseline characteristics were well-balanced between the two groups, with no statistically significant differences ( P > 0.05). Compared to the control group, the experimental group showed significantly smaller setup errors in the left-right ( x) and anterior-posterior ( z) directions at the clivus level, as well as in the z direction at the C4 and C7 vertebral levels ( t = 2.30, 5.29, 4.07, 2.40, P < 0.05). The required PTV margin in the z direction increased to 4.0 mm at C7 from 2.4 mm and 2.8 mm at the clivus in the experimental and control groups, respectively. Correlation analysis revealed a strong negative correlation between the x-direction at the clivus and C4 vertebral levels and the couch angle (RTN) among all patients ( r = -0.548, -0.452, P < 0.001). A moderate negative correlation was observed between the inferior-superior ( y) direction and the z-direction at the C4 and C7 vertebral levels ( r = -0.160, -0.222, P < 0.001). Conclusions:Neck muscle group exercise can reduce setup errors and PTV margins in the anterior-posterior direction in postoperative radiotherapy for head and neck cancer patients.

ObjectiveTo compare the clinical features of patients with hepatitis B virus （HBV）-related early-onset liver cancer and those with late-onset liver cancer， to assess the severity of the disease， and to provide a theoretical basis for the early diagnosis and treatment of liver cancer. MethodsA retrospective analysis was performed for 695 patients who were diagnosed with HBV-related liver cancer for the first time in Guangzhou Eighth People’s Hospital， Guangzhou Medical University， from January 2019 to August 2023， among whom 93 had early-onset liver cancer （defined as an age of50 years for female patients and40 years for male patients） and 602 had late-onset liver cancer （defined as an age of ≥50 years for female patients and ≥40 years for male patients）. Related clinical data were collected， including demographic data， clinical symptoms at initial diagnosis， comorbidities， smoking history， drinking history， family history， routine blood test results， biochemical parameters of liver function， serum alpha-fetoprotein（AFP）， virological indicators， coagulation function， and imaging findings. The pan-inflammatory indices neutrophil-to-lymphocyte ratio （NLR）， platelet-to-lymphocyte ratio （PLR）， and lymphocyte-to-monocyte ratio （LMR） were calculated， as well as FIB-4 index， aspartate aminotransferase-to-platelet ratio index （APRI）， S index， Model for End-Stage Liver Disease （MELD） score， Child-Turcotte-Pugh （CTP） score， albumin-bilirubin （AIBL） grade， and Barcelona Clinic Liver Cancer （BCLC） stage. The independent-samples t test was used for comparison of normally distributed continuous data between two groups， and the Wilcoxon rank-sum test was used for comparison of non-normally distributed continuous data between two groups； the chi-square test or Fisher’s exact test were used for comparison of categorical data between two groups. ResultsThere were significant differences between the two groups in the proportion of male patients and the incidence rates of diabetes， hypertension， and fatty liver disease （χ²=6.357， 15.230， 11.467， and 14.204， all P0.05）， and compared with the late-onset liver cancer group， the early-onset liver cancer group had a significantly higher proportion of patients progressing to liver cancer without underlying cirrhosis （χ²=24.657， P0.001） and a significantly higher proportion of patients with advanced BCLC stage （χ²=6.172， P=0.046）. For the overall population， the most common clinical symptoms included abdominal distension， abdominal pain， poor appetite， weakness， a reduction in body weight， edema of both lower limbs， jaundice， yellow urine， and nausea， and 55 patients （7.9%） had no obvious symptoms at the time of diagnosis and were found to have liver cancer by routine reexamination， physical examination suggesting an increase in AFP， or radiological examination indicating hepatic space-occupying lesion； compared with the late-onset liver cancer group， the patients in the early-onset liver cancer group were more likely to have the symptoms of abdominal distension， abdominal pain， and jaundice （all P0.05）. Compared with the late-onset liver cancer group， the early-onset liver cancer group had a significantly larger tumor diameter （Z=2.845， P=0.034）， with higher prevalence rates of multiple tumors and intrahepatic， perihepatic， or distant metastasis （χ²=5.889 and 4.079， both P0.05）， and there were significant differences between the two groups in tumor location and size （χ²=3.948 and 11.317， both P0.05）. Compared with the late-onset liver cancer group， the early-onset liver cancer group had significantly lower FIB-4 index， proportion of patients with HBsAg ≤1 500 IU/mL， and levels of LMR and Cr （all P0.05）， as well as significantly higher positive rate of HBeAg and levels of log₁₀ HBV DNA， AFP， WBC， Hb， PLT， NLR， PLR， TBil， ALT， Alb， and TC （all P0.05）. ConclusionCompared with late-onset liver cancer， patients with early-onset liver cancer tend to develop liver cancer without liver cirrhosis and have multiple tumors， obvious clinical symptoms， and advanced BCLC stage， which indicates a poor prognosis.

Objective:The aim was to analyze key indicators for the diagnosis and treatment of chronic hepatitis B（CHB），including virus detection rate，standardized treatment rate，and loss to follow-up rate，in order to provide a basis for optimizing diagnosis and treatment plans，improve the diagnosis and treatment level of CHB，and improve patient prognosis.Methods:Patients with CHB admitted to the Guangzhou Eighth People′s Hospital Affiliated to Guangzhou Medical University from January 2024 to January 2025 were enrolled. The datas were collected and organized using Excel. Statistical analysis was conducted using SPSS 26.0 software，with a focus on evaluating core indicators such as virus detection rate，standardized treatment rate，and loss to follow-up rate.Results:The positive rate of hepatitis B surface antigen（HBsAg）in non-specific patients was 28.95%，the antiviral treatment rate in specialized patients was 90.78%，and the standardized antiviral drug conversion treatment rate in low-level viremia（LLV）patients was 61.45%. The standardized antiviral drug conversion treatment rates for high-risk patients with combined kidney/bone injuries were 72.75% and 74.40%，respectively. The overall dropout rate was 10.47%，with a dropout rate of 13.80% for LLV patients.Conclusions:The antiviral treatment coverage rates in CHB patients were over 90%，but in certain groups（such as LLV patients and those with kidney or bone injuries），the standardized treatment rates were still low and loss to follow-up rates were high，suggesting the need to improve HBV screening，treatment for special populations，and patient adherence.

Objective:A novel grass-root community screening and management model of hepatitis B was developed in order to improve the diagnosis and treatment rate of hepatitis B in Guangzhou city.Methods:A three-tier collaborative framework［tertiary hospitals-center for disease control and prevention（CDC）-primary care clinics］implemented dual-track screening（fixed-site+mobile units）using rapid hepatitis B surface antigen（HBsAg）testing and structured surveys. Digital closed-loop management integrated screening，referral，and follow-up. Data were analyzed via SPSS 26.0.Results:Among 30 012 community-dwelling adults screened（Male∶Female=1∶1.68），overall HBsAg positive rate was 5.21%（1 565/30 012），peaking in the 50-59-year cohort（ χ2=271.80， P<0.001）. Hepatitis B knowledge awareness was critically low（39.24%）. Of 140 referred HBsAg-positive individuals，15 chronic carriers required no immediate antiviral therapy per guidelines. Treatment linkage surged from 32.8%（41/125）to 86.4%（108/125）post-intervention. aMAP hepatocellular carcinoma（HCC）risk stratification（n=82）revealed low（36.6%），intermediate（32.9%），and high-risk（30.5%）profiles. Conclusions:This coordinated，digitally-enhanced strategy significantly improved hepatitis B detection and treatment access. However，persistent knowledge gaps underscore the imperative for targeted community education and adherence support.