Objective:To analyze the characteristics of transabdominal bowel ultrasound (TBUS) in immune checkpoint inhibitor-related colitis (IRC) and their correlation with endoscopic manifestations.Methods:A cross-sectional study was conducted. Clinical data from 10 patients with IRC treated at Peking Union Medical College Hospital from January 2022 to January 2024 were collected. The ulcerative colitis endoscopic index of severity (UCEIS) and Limberg classification were used to assess the severity of colonoscopy and TBUS examinations, respectively. Kendall's tau-b method was applied for correlation analysis between UCEIS scores and Limberg classification.Results:All the 10 patients were male with a median age of 65 years (59-74 years). The majority had lung cancer (8 patients) and all were in advanced stages, with 6 patients in stage Ⅲ and 4 in stage Ⅳ. They all received anti-programmed death 1 (PD-1) /anti-programmed death ligand 1 (PD-L1) combined with chemotherapy, among whom 2 patients were combined with anti-angiogenic drug treatment. The median time from the first immunotherapy to the onset of IRC was 1.50 (0.25-12.00) months; the median time from IRC treatment to clinical symptom relief to G1 was 2.45 (0.50-8.00) weeks. Nine patients were in the active phase, mainly G3 (8 patients) ; 1 was in the remission phase after treatment. TBUS showed that among the 9 active IRC patients, the entire colon was mainly involved (7 patients), with combined small intestine involvement (3 patients) ; the main manifestations were thickening of the bowel wall, with the thickest bowel wall being 7.0 (5.0-8.0) mm, mainly located in the sigmoid colon (3 patients) and descending colon (3 patients) ; increased bowel wall blood flow signals (Limberg classification 2-4) occurred in 7 patients; 3 active patients had perienteric fat wrapping, and 2 had blurred bowel wall stratification. The Kendall's tau-b correlation coefficient r between the entire colon UCEIS scores and Limberg classification was 0.891 ( P = 0.003), and the Kendall's tau-b correlation coefficient r between the colon segment UCEIS scores and Limberg classification was 0.690 ( P < 0.001) . Conclusion:During the active phase, the left colon of IRC is more severe in TBUS, which mainly manifests as the thickening bowel wall and increased blood flow signals, and the TBUS has good correlation with colonoscopy evaluation.

Objective:To analyze the characteristics of transabdominal bowel ultrasound (TBUS) in immune checkpoint inhibitor-related colitis (IRC) and their correlation with endoscopic manifestations.Methods:A cross-sectional study was conducted. Clinical data from 10 patients with IRC treated at Peking Union Medical College Hospital from January 2022 to January 2024 were collected. The ulcerative colitis endoscopic index of severity (UCEIS) and Limberg classification were used to assess the severity of colonoscopy and TBUS examinations, respectively. Kendall's tau-b method was applied for correlation analysis between UCEIS scores and Limberg classification.Results:All the 10 patients were male with a median age of 65 years (59-74 years). The majority had lung cancer (8 patients) and all were in advanced stages, with 6 patients in stage Ⅲ and 4 in stage Ⅳ. They all received anti-programmed death 1 (PD-1) /anti-programmed death ligand 1 (PD-L1) combined with chemotherapy, among whom 2 patients were combined with anti-angiogenic drug treatment. The median time from the first immunotherapy to the onset of IRC was 1.50 (0.25-12.00) months; the median time from IRC treatment to clinical symptom relief to G1 was 2.45 (0.50-8.00) weeks. Nine patients were in the active phase, mainly G3 (8 patients) ; 1 was in the remission phase after treatment. TBUS showed that among the 9 active IRC patients, the entire colon was mainly involved (7 patients), with combined small intestine involvement (3 patients) ; the main manifestations were thickening of the bowel wall, with the thickest bowel wall being 7.0 (5.0-8.0) mm, mainly located in the sigmoid colon (3 patients) and descending colon (3 patients) ; increased bowel wall blood flow signals (Limberg classification 2-4) occurred in 7 patients; 3 active patients had perienteric fat wrapping, and 2 had blurred bowel wall stratification. The Kendall's tau-b correlation coefficient r between the entire colon UCEIS scores and Limberg classification was 0.891 ( P = 0.003), and the Kendall's tau-b correlation coefficient r between the colon segment UCEIS scores and Limberg classification was 0.690 ( P < 0.001) . Conclusion:During the active phase, the left colon of IRC is more severe in TBUS, which mainly manifests as the thickening bowel wall and increased blood flow signals, and the TBUS has good correlation with colonoscopy evaluation.

Objective To analyze the emphasis and deficiencies of synergy of traditional Chinese and Western medicine policy texts,and provide references for future policy development and optimization.Methods From the perspective of policy tools,a two-dimensional"policy objectives-policy tools"analysis framework was constructed,and 75 policy documents related to the synergy of traditional Chinese and Western medicine were quantitatively analyzed using content analysis.Results In the X-dimension,supply-oriented policy tools were used the most (48.18％),followed by demand-oriented tools (24.09％) and environment-oriented tools (27.72％),with a relatively small proportion of usage.Additionally,there were significant differences in the internal structure of each policy tool.In the Y-dimension,promoting the cultivation of synergy of traditional Chinese and Western medicine had the highest proportion (22.56％),while the goal of establishing a complete mechanism for preventing and controlling diseases through synergy of traditional Chinese and Western medicine had the lowest proportion (4.40％).Conclusion In the future,policies in the field of synergy of traditional Chinese and Western medicine should increase their emphasis on demand-oriented and environment-oriented tools,optimize policy tool combinations,and improve target layouts.Meanwhile,it should perfect the layout of policy objectives,provide necessary policy support for weak links,strengthen cooperation and communication among policy-making departments,and further promote the construction of a policy system for synergy of traditional Chinese and Western medicine.

Objective To analyze the emphasis and deficiencies of synergy of traditional Chinese and Western medicine policy texts,and provide references for future policy development and optimization.Methods From the perspective of policy tools,a two-dimensional"policy objectives-policy tools"analysis framework was constructed,and 75 policy documents related to the synergy of traditional Chinese and Western medicine were quantitatively analyzed using content analysis.Results In the X-dimension,supply-oriented policy tools were used the most (48.18％),followed by demand-oriented tools (24.09％) and environment-oriented tools (27.72％),with a relatively small proportion of usage.Additionally,there were significant differences in the internal structure of each policy tool.In the Y-dimension,promoting the cultivation of synergy of traditional Chinese and Western medicine had the highest proportion (22.56％),while the goal of establishing a complete mechanism for preventing and controlling diseases through synergy of traditional Chinese and Western medicine had the lowest proportion (4.40％).Conclusion In the future,policies in the field of synergy of traditional Chinese and Western medicine should increase their emphasis on demand-oriented and environment-oriented tools,optimize policy tool combinations,and improve target layouts.Meanwhile,it should perfect the layout of policy objectives,provide necessary policy support for weak links,strengthen cooperation and communication among policy-making departments,and further promote the construction of a policy system for synergy of traditional Chinese and Western medicine.

OBJECTIVE In order to analyze the current situation of policy tool allocation in China’s TCM formula granule industry， and provide a theoretical basis for the high-quality development of the industry. METHODS Based on the perspective of policy tools，“ TCM formula granules” was used as the keyword to retrieve the official websites of departments directly under the State Council such as the National Medical Products Administration and the National Administration of Traditional Chinese Medicine， as well as provincial governments. The relevant clauses in the policy documents related to TCM formula granules in China from 1993 to 2022 were encoded， and then the application of policy tools was summarized and classified. RESULTS & CONCLUSIONS A total of 12 national documents and 77 provincial documents were ultimately selected， involving 556 relevant policy clauses. It was found that among the relevant policy tools， environmental policy tools had the highest degree of attention， accounting for 62.6%； the proportions of demand-oriented policy tools and supply-oriented policy tools were less， accounting for 17.8% and 19.6%， respectively. From the perspective of policy tools， the use of demand-oriented policy tools in current policy texts was relatively simple， and various policy tools were given low attention； from the perspective of policy objectives， the proportion of use of environmental， demand-oriented and supply-oriented policy tools were not balanced enough. It is suggested to increase the proportion of demand- oriented policy tools to meet international competition； emphasize the use of supply-oriented policy tools to strictly control product quality； consolidate the use of environmental policy tools to standardize quality standards. On this basis， we will coordinate the overall situation， balance the use of various policy tools and promote the development of TCM formula granule industry.

Objective:To explore the association of DNA methylation with immune response to hepatitis B (HepB) vaccine in Han nationality children from Guangxi province.Methods:A total of 263 children aged 8-9 months who had completed HepB immunization program were recruited from three hospitals in Guangxi province by using unmatched case-control method. Children with the HepB surface antibody concentration(Anti -HBs)<100 mIU/ml was set as the case group and ≥100 mIU/ml as the control group. Multiplex PCR and heavy sulfite sequencing were used to treat the samples. Illumina platform was used for high-throughput DNA methylation sequencing of IFNG gene target regions and CpG sites. Unconditional logistic regression was used to analyze the association between cytosine-phospho-guanosine DNA methylation at 18 loci of IFNG gene and HepB immune response level. Results:There were 104 children in the case group and 159 in the control group. The median ( Q1, Q3) level of anti -HBs in two groups were 62.34 (30.06, 98.88) mIU/ml and 1 089.10 (710.35, 1 233.45) mIU/ml. The methylation levels of IFNG_1 gene 44 and 93 locus in the case group were higher than those in the control group ( P<0.05). The unconditional logistic regression model showed that the DNA methylation level of IFNG_1 gene at 44 ( OR=1.18, 95% CI: 1.03-1.35) and 93 ( OR=1.21, 95% CI: 1.07-1.38) locus was associated with the HepB response level. Conclusion:The changes of DNA methylation at locus 44 and 93 of IFNG_1 gene may be relevant factors affecting the response level of HepB in Han nationality children from Guangxi province.

Objective:To explore the association of DNA methylation with immune response to hepatitis B (HepB) vaccine in Han nationality children from Guangxi province.Methods:A total of 263 children aged 8-9 months who had completed HepB immunization program were recruited from three hospitals in Guangxi province by using unmatched case-control method. Children with the HepB surface antibody concentration(Anti -HBs)<100 mIU/ml was set as the case group and ≥100 mIU/ml as the control group. Multiplex PCR and heavy sulfite sequencing were used to treat the samples. Illumina platform was used for high-throughput DNA methylation sequencing of IFNG gene target regions and CpG sites. Unconditional logistic regression was used to analyze the association between cytosine-phospho-guanosine DNA methylation at 18 loci of IFNG gene and HepB immune response level. Results:There were 104 children in the case group and 159 in the control group. The median ( Q1, Q3) level of anti -HBs in two groups were 62.34 (30.06, 98.88) mIU/ml and 1 089.10 (710.35, 1 233.45) mIU/ml. The methylation levels of IFNG_1 gene 44 and 93 locus in the case group were higher than those in the control group ( P<0.05). The unconditional logistic regression model showed that the DNA methylation level of IFNG_1 gene at 44 ( OR=1.18, 95% CI: 1.03-1.35) and 93 ( OR=1.21, 95% CI: 1.07-1.38) locus was associated with the HepB response level. Conclusion:The changes of DNA methylation at locus 44 and 93 of IFNG_1 gene may be relevant factors affecting the response level of HepB in Han nationality children from Guangxi province.

The reform of medical insurance payment system could promote the transformation of medical services from price medical care to value medical care, which is very important to promote the construction of medical alliance. The authors discussed the reform of medical insurance payment system to promote the construction of medical alliance, and the order of medical alliance covering medical services and seeking medical treatment.For medical service providers, the reform of medical insurance payment system helped to promote the construction of closer medical alliance, guided the sinking of high-quality resources, helped to form a smooth referral mechanism, and strengthened the supervision and assessment of medical behavior. For the demanders of medical services, the differentiated medical insurance reimbursement proportion policy within the medical alliancewas more conducive to attracting the first consultation at the grass-roots level. At the same time, patients had a wider choice of medical treatment and more freedom of choice. In view of the problems existing in practice, the authors suggested that a variety of medical insurance payment and performance systems with value-based medical care as the core should be implemented to deepen the development of medical alliance, the medical insurance system and municipal subsidies should jointly undertake the salary subsidies for sinking medical personnel, and integrate the grass-roots fragmented health care business with the help of medical insurance payment tools, and promote the coverage expansion of the medical insurance reform of the medical alliance based on policy guidance.

OBJECTIVE：To investigate the synergistic effect and deficiencies between centralized drug quantity purchase policy and medical insurance reimbursement system ，and to provide feasible suggestion to further improve its synergistic effect. METHODS：The literature analysis method and policy evaluation method were adopted to expounds the direct and indirect synergistic effect between the current centralized drug quantity purchase policy and medical insurance reimbursement system in China，and analyze the existing problems so as to put forward the feasible suggestions. RESULTS & CONCLUSIONS ：The centralized drug quantity purchase policy had a direct impact on the payment mode of medical insurance reimbursement system in technical level ，performance evaluation in effect level and process control in management level. The indirect synergy included ： centralized drug quantity purchase policy could promote the adjustment of drug supply security system to adapt to the reform of medical insurance payment ；it could adjust the pharmaceutical market ，and affect the reform of medical insurance reimbursement system. The disadvantages were as follows ：the varieties of selected drugs was still narrow ，and there was room for further improvement in purchasing scope and medical insurance fee reduction ；“one-size-fits-all”payment standard for unselected drug might weaken pharmaceutical companies ’enthusiasm for generic drug research and development. Therefore ，the next step is to significantly expand the variety and scope of procurement ，and appropriately liberalize the medical insurance payment restrictions for drugs with fewer varieties ；coordinate medical insurance reimbursement policies and procurement programs ，and improve the rationality and perfection of medical insurance payment ；guide the medical institutions to change the concept from “price-based medical treatment ”to“value-based medical treatment ”，take into account the interests of all parties in the market ，so as to form a comprehensive coordination adjustment mechanism of drug price and medical insurance reimbursement system.

OBJECTIVE：To investigate the s ynergy between centralized drug volume-based purchasing （called“volume- based purchasing”for short ）and medical insurance negotiation policy. METHODS ：From the aspects of economic and social benefits ， the synergy of volume-based purchasing and medical insurance negotiation was analyzed by using the methods of literature analysis，policy interpretation and interview. The corresponding suggestions were put forward for the problems of the supply and use of drugs. RESULTS & CONCLUSIONS ：The synergy of volume-based purchasing and medical insurance negotiation in terms of economic benefits include medical insurance fund management optimization to improve fund utilization efficiency improvement ； medical insurance fund payment optimization to reduce transaction cost ；network promotion of medical security information platform to reduce the cost of information exchange. The synergy of volume-based purchasing and medical insurance negotiation in terms of social benefits includes relevant index assessment of drug quality evaluation to improve drug quality evaluation system ； medical service level improvement to form compound medical insurance payment mode under total budget management ；enterprise supervision driven by market to reduce the pressure of government supervision. The relevant departments should continue to strengthen the comprehensive management of medical institutions to reduce the phenomenon of irrational drug use ；strengthen policy convergence ，avoid the poor implementation of medical insurance drug adjustment policy ，so that the policy dividend of volume-based purchasing and medical insurance negotiation can benefit the people more through system reform ，optimal allocation of funds ，etc.