Machine learning-based autophagy-related prognostic signature for personalized risk stratification and therapeutic approaches in bladder cancer.

OBJECTIVE: Bladder cancer (BCa) is a highly lethal urological malignancy characterized by its notable histological heterogeneity. Autophagy has swiftly emerged as a diagnostic and prognostic biomarker in diverse cancer types. Nonetheless, the currently accessible autophagy-related signature specific to BCa remains limited. METHODS: A refined autophagy-related signature was developed through a 10-fold cross-validation framework, incorporating 101 combinations of machine learning algorithms. The performance of this signature in predicting prognosis and response to immunotherapy was thoroughly evaluated, along with an exploration of potential drug targets and compounds. In vitro and in vivo experiments were conducted to verify the regulatory mechanism of hub gene. RESULTS: The autophagy-related prognostic signature (ARPS) has exhibited superior performance in predicting the prognosis of BCa compared to the majority of clinical features and other developed markers. Higher ARPS is associated with poorer prognosis and reduced sensitivity to immunotherapy. Four potential targets and five therapeutic agents were screened for patients in the high-ARPS group. In vitro and vivo experiments have confirmed that FKBP9 promotes the proliferation, invasion, and metastasis of BCa. CONCLUSIONS: Overall, our study developed a valuable tool to optimize risk stratification and decision-making for BCa patients.

Riding practices of e-bike riders after the implementation of electric bike management regulations: An observational study in Hangzhou, China.

Objective: This study aimed to understand the riding behaviors of electric bike (e-bike) users in Hangzhou after the "Regulations of Zhejiang Province on the Administration of Electric Bicycles". Methods: The study consisted of two parts, including a questionnaire survey of local e-bike users in Shangcheng District and Jiande County in Hangzhou City, and a cross-sectional observational study of 16 intersections. Results: A total of 789 e-bike riders participated in the questionnaire survey, and the riding behavior of 99,407 e-bike users was observed. The main purpose of using e-bike was work and daily life, 46.0% of them used e-bikes more than 5 days a week, and 58.5% used e-bikes for less than 30 min each time. A vast majority (81.7%) of e-bike riders believe that the implementation of Zhejiang Regulations has significantly improved the safety level of e-bike riding in the region. The field survey found that the correct rates of helmet wearing by e-bike riders and passengers were 78.83% and 42.27%. The main violations were invalid/non-helmet wearing (21.17%), followed by carrying passengers and running red lights (7.94% and 4.26%). The rates of invalid/non-helmet wearing and running red lights were significantly higher during non-morning rush hour, weekends, and roads without separate non-motorized vehicle lanes than in other conditions (all P < 0.05). Additionally, sunny days and crossroads were risk factors for passenger-carrying and invalid/non-helmet wearing compared to rainy/cloudy days and T-intersections. Conclusions: The phenomenon that e-bike users' correct practice lags far behind the awareness of various violations has shown some improvement. To further enhance safety measures for e-bike riders, it is necessary to promote education, improve infrastructure, and strengthen law enforcement, in support of the "Zhejiang Regulations" and behavioral interventions.

Analysis of colorectal cancer screening results in Shangcheng District / 预防医学

Objective@#To analyze the status of colorectal cancer screening results in Shangcheng District, Hangzhou City from 2020 to 2022, so as to provide the evidence for developing prevention and control strategies for colorectal cancer.@*Methods@#According to Colorectal Cancer Screening Program for Zhejiang Key Populations, residents registered in Shangcheng District and at ages of 50 to 74 years were recruited and screened using Zhejiang Provincial Questionnaires for Assessment of Risk of Colorectal Cancer Screening among High-risk Populations and fecal immunochemical test (FIT). Residents positive for questionnaires or FIT, or both positive for questionnaires and FIT were served as a positive screening and colonoscopy should be underwent. The rates of positive screening, compliance of colonoscopy and different pathological diagnosis results were analyzed.@*Results@#Totally 118 227 residents were screened in Shangcheng District from 2020 to 2022, with a positive rate of 16.00%. The positive rates of questionnaires, FIT and both questionnaires and FIT were 8.14%, 6.46% and 1.40%, respectively. Colonoscopy was performed among 6 501 cases, with a compliance rate of 34.37%. Colonoscopy detected 3 689 cases with colorectal lesions, with a detection rate of 56.75%. The detection rates of colorectal cancer, pericancer lesions and other benign lesions were 1.12%, 9.15% and 46.47%, respectively. The detection rates of positive screening, colorectal lesions and pericancer lesions were higher in men (22.16%, 61.25% and 12.45%) than those in women (11.62%, 51.98% and 5.67%; all P<0.05). The detection rates of positive screening, colorectal lesions, colorectal cancer and pericancer lesions appeared a tendency towards a rise with age (all P<0.05). The detection rates of positive screening and colorectal lesions appeared a tendency towards a decline, and the compliance rate of colonoscopy appeared a tendency towards a rise from 2020 to 2022 (all P<0.05). The detection rate of pericancer lesions was higher among questionnaire and FIT positive residents (65.37%, P<0.05).@*Conclusions@#The detection rates of colorectal cancer and pericancer lesions in Shangcheng District from 2020 to 2022 were 1.12% and 9.15%, respectively. Men, the elderly, questionnaire and FIT positive residents are key populations, and the compliance of colonoscopy for the populations should be improved.