Colorectal tumorigenesis generally progresses from adenoma to adenocarcinoma, accompanied by dynamic changes in the tumor microenvironment (TME). A randomized controlled trial has confirmed the efficacy and safety of Shen-Bai-Jie-Du decoction (SBJDD) in preventing colorectal tumorigenesis. However, the mechanism remains unclear. In this study, we employed single-cell RNA sequencing (scRNA-seq) to investigate the dynamic evolution of the TME and validated cell infiltration with multiplex immunohistochemistry and flow cytometry. Bulk RNA sequencing was utilized to assess the underlying mechanisms. Our results constructed the mutually verifiable single-cell transcriptomic atlases in Apc ^Min/+ mice and clinical patients. There was a marked accumulation of CCL22⁺ dendritic cells (DCs) and an enhanced immunosuppressive action, which SBJDD and berberine reversed. Combined treatment with cholesterol and lipopolysaccharide induced characteristic gene expression of CCL22⁺ DCs, which may represent "exhausted DCs". Intraperitoneal injection of these DCs after SBJDD treatment eliminated its therapeutic effects. TMEM131 derived CCL22⁺ DCs generation by TNF signaling pathway and may be a potential target of berberine in retarding colorectal tumorigenesis. These findings emphasize the role of exhausted DCs and the regulatory mechanisms of SBJDD and berberine in colorectal cancer (CRC), suggesting that the multi-component properties of SBJDD may help restore TME homeostasis and offer novel cancer therapy.

Abstract Overweight and obesity among children is not only harmful to physical and mental health, but also associated with an increased risk of chronic diseases such as hypertension and diabetes in adulthood. Health related behavioral factors are one of the most important causes of child overweight and obesity, which commonly co occur and show a synergistic negative influence on health. The synergistic effects suggest that interventions are likely to be more cost effective and to maximize impact by targeting health risk behaviors in combination with the improvement of a variety of modificable behaviors. The present review aims to describe the update of co occurrence and clustering patterns of obesity related health risk behaviors, and proposes the future direction for prevention and control of overweight and obesity in children.

Objective:To analyze the current level and dynamic change of the salary and income satisfaction rate of doctors in Chinese tertiary public hospitals in recent years.Methods:In January 2018, March 2019 and March 2021, the project team of " the third party evaluation of the China Healthcare Improvement Initiative" conducted a questionnaire survey among doctors of 136 tertiary public hospitals in 31 provinces. The first-line clinicians were investigated by stratified sampling method. The salary level and satisfaction of doctors were investigated by questionnaire. Chi square test was used for comparison between groups.Results:The sample size of the three surveys was 20 786, 23 289 and 22 836 respectively. The median value of doctors′ actual income after tax in 2017, 2018 and 2020 was 100 800 yuan, 120 000 yuan, 150 000 yuan respectively, and the median expected annual income after tax was 196 000 yuan, 250 000 yuan and 250 000 yuan. The proportion of doctors satisfied with the current income was 16.5%, 17.8% and 26.9% respectively. The salary and satisfaction rate of doctors had an upward trend, but the overall level was still low.Conclusions:In recent years, the salary of doctors in tertiary public hospitals in China has been improved to a certain extent, but on the whole, it is at a low level, and there is still much room for improvement. In the future, the government needs to improve the hospital salary system and increase the salary of doctors continuously, especially needs to pay attention to the doctors with high education level and intermediate titles.

Objective:To analyze the salary level, change trend and salary satisfaction of nurses in tertiary public hospitals in China.Methods:The data was derived from three round third-party evaluation of the China Healthcare Improvement Initiative at 136 tertiary public hospitals from December 2017 to January 2018, March 2019 and January to March 2021. The self-reported salary, expected salary and salary satisfaction rate of nurses were analyzed.Results:The sample sizes of the three evaluations were 27 575, 27 568 and 25 197, representing the salary situation in 2017, 2018 and 2020 respectively. In 2017, 2018 and 2020, the actual average annual salary of nurses was 81 600 yuan, 100 000 yuan and 110 000 yuan respectively, the expected average annual salary was 140 000 yuan, 160 000 yuan and 160 000 yuan respectively, and the ratio of expected salary to actual salary was 1.72, 1.60 and 1.45 respectively. In 2017, 2018 and 2020, the proportion of nurses satisfied with their current income was 34.0%, 33.7% and 43.6% respectively. In 2020, nurses in the eastern region, other specialized hospitals, senior professional titles and graduate degrees had highest annual salary.Conclusions:The salary level and satisfaction rate of nurses in tertiary public hospitals in China show a slow growth trend, and the gap between actual salary and expected salary is gradually narrowing.

Objective:To understand the changes in the practice environment from the perspective of doctors in 136 tertiary public hospitals, and to provide evidence for formulating strategies and measures to improve the practice environment of doctors.Methods:The data was collected from five rounds of China Healthcare Improvement Evaluation Survey from December 2015 to March 2021. The sample size was 17 945, 19 774, 20 786, 23 289, and 22 836, with a total of 104 630. The self-designed questionnaire on four dimensions of doctor-patient relationship, workload, administrative logistics support and professional identity was performed.Results:From the 1st to the 5th survey, the approval ratio of " the administrative and logistics department of this hospital is highly efficient" showed the characteristics of " U-shaped distribution" , and the approval ratio of " approve or encourage children to continue to engage in medical work" increased from 13.38% to 23.91%.From the 2nd to the 5th survey, the percentage of doctors who experienced doctor-patient disputes dropped from 28.96% to 23.20%, and the percentage of doctors agreeing that the relationship between doctors and patients in this hospital was improving continued to increase from 33.20% to 60.45%.From the 3rd to the 5th survey, the proportion of doctors experiencing medical troubles dropped from 15.10% to 14.19%, and the recognition rate of " the cafeteria of this hospital provided medical staff with nutritious and delicious meals" increased from 36.25% to 47.52%, and the approval proportion of " my current work load is heavy" dropped from 61.55% to 45.24%. The results of the 5th survey showed that there were significant differences in the approval ratios of each dimension in different genders, job titles and hospital types( P<0.001). Conclusions:From the perspective of doctor-patient relationship, workload, administrative logistics support, and professional identity, the improvement of doctors′ practice environment is still insufficient. Hospital administrators should continue to focus on the improvement of the doctor-patient relationship, and take necessary measures to reduce doctors′ workload and improve doctors′ professional identity.

Objective: To carry out the 4^th round of third-party evaluation on the implementation and effect of the 1^st year of the 2^nd Phase National Healthcare Improvement Initiative(abbreviated as Initiative)since 2015. Methods: The 4^th round of the evaluation survey adopted the same methods, organization and execution, and technical roadmap as the former three rounds of evaluations. Results: The 4^th round of evaluation was carried out from 18 March to 9 April, 2019 at 185 public hospitals in 31 provinces(autonomous regions, municipalities directly under the Central Government)and Xinjiang Production and Construction Corps.Facility survey, health professional survey and patient survey were conducted at each of the sample health facilities. A total of 120 782 valid questionnaires were collected from 144 non-psychiatric health facilities, 16 246 valid questionnaires were obtained from 41 psychiatric health facilities, and 252 cases of outstanding departments/hospitals in healthcare improvement were also collected. The average overall scoring of the 12 dimensions to assess Initiative implementation at 144 non-psychiatric health facilities was 84.4%. The overall outpatient satisfaction scoring was 91.1%, 96.7%for the inpatients. The overall inpatient satisfaction(family members inclusive) at 41 psychiatric health facilities was 93%. Areas remaining to be improved include day-surgery, telemedicine and medical social work. Compared with technical services, non-technical care should be further strengthened. The compensation, workload and work environment of the healthcare providers are still to be improved. Conclusions The implementation of the Initiative by health facilities has been greatly improved. The percentage of health facilities and patients who had positive perceptions of improved doctor-patient relationship has been increasing. Patient care experiences at public hospitals have been generally improved, and the implementation of promoting traditional Chinese Medicine practices also made progress. However, work satisfaction of healthcare providers was found to be rather low, compared to the high level of patient satisfaction.

Objective: To establish comprehensive understanding of the self-rated health of the Chinese doctors and nurses and probe into their influencing factors. Methods: Data were drawn from a hospital performance survey, which was conducted by the Peking Union School of Public Health from March 18th to April 9th, 2019, among the 144 tertiary public hospitals in 31 provinces, autonomous regions, and municipalities. The survey included a cell-phone based questionnaire filled out by the sampled doctors and nurses, in which they were asked to rate their health using a 5-level Likert scale(from " very poor" to " very good" ). Mann-Whitney U test was used to analyze the differences in self-rated health between doctors and nurses. Chi-square test and two-class multivariate logistic regression were performed to analyze factors affecting self-rated health of the providers. Results: Among the 144 sample hospitals, the proportion of doctors, who rated their health as " healthy" , was 20.30%(4 979/24 529), that of nurses was 28.92%(8 361/28 910). It was worse than that in some developed countries and lower than the general population in China. Multi-variate analysis showed that adequate sleeping time, satisfaction with the work and with the doctor-patient relationship, were positively associated with the level of self-rated health of the sampled doctors and nurses(P<0.05). It was also found that the longer the average weekly working time, the higher the recognition of " the work load is too heavy" , the lower the proportion of doctors and nurses who rated their health as " healthy" (P<0.05). Conclusions Sleep time, job satisfaction, workload and doctor-patient relationship are important factors affecting self-rated health of the Chinese doctors and nurses.