1.A prospective cohort study on glycolipid metabolic abnormalities and incident colorectal cancer risk
Qiaoyi XU ; Ruilin CHEN ; Yijing XIE ; Shuo WANG ; Renjia ZHAO ; Siqi TANG ; Linyao LU ; Huangbo YUAN ; Tiejun ZHANG ; Yanfeng JIANG ; Kelin XU ; Zhenqiu LIU ; Xingdong CHEN ; Chen SUO
Shanghai Journal of Preventive Medicine 2026;38(6):409-417
ObjectiveTo investigate the associations of multiple glycolipid metabolic indicators and their cumulative abnormality burden with incident colorectal cancer risk in a general population-based prospective cohort, and to examine the mediating role of glycolipid metabolic abnormalities in the relationships between smoking, alcohol consumption, physical activity, and colorectal cancer incidence. MethodsA total of 17 897 eligible participants recruited from the Taizhou Cohort between 2011 and 2014 were included. Cox proportional hazards regression models were used to assess the associations of conventional and derived glycolipid indicators, as well as a glycolipid abnormality index constructed from total cholesterol, triglycerides, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, fasting plasma glucose, and insulin, with incident colorectal cancer risk. Restricted cubic spline models were applied to evaluate dose-response relationships for major indicators. Receiver operating characteristic curves were generated to compare predictive performance across indicators. Mediation analyses were conducted to assess the mediating effects of the glycolipid abnormality index on the associations of smoking, alcohol consumption, and physical activity with colorectal cancer incidence. ResultsDuring a median follow-up of 11.2 years, 102 incident colorectal cancer cases were identified, with an incidence density of 51.2 per 100 000 person-years. After adjustment for potential confounders, Cox proportional hazards regression analyses showed that decreased high-density lipoprotein cholesterol was associated with a 1.74-fold higher risk of colorectal cancer (HR=1.74, 95%CI: 1.03‒2.95), elevated low-density lipoprotein cholesterol was associated with a 1.78-fold higher risk (HR=1.78, 95%CI: 1.05‒3.02), and abnormal fasting plasma glucose was associated with a 1.86-fold higher risk (HR=1.86, 95%CI: 1.15‒3.02). Triglycerides and fasting plasma glucose showed an approximately linear increasing association with colorectal cancer risk in multivariable restricted cubic spline models. The glycolipid abnormality index showed a clear gradient association with colorectal cancer risk; participants with three or more abnormal indicators had a 3.08-fold higher risk than those without abnormalities (HR=3.08, 95%CI: 1.60‒5.92). The area under the curve was 0.795, higher than that of individual glycolipid indicators and other combined indices, and gender-stratified analyses showed generally consistent patterns. Glycolipid metabolic abnormalities partially mediated the associations of smoking, alcohol consumption, and physical activity with colorectal cancer incidence, with mediation proportions of 8.33%, 9.45%, and 9.04%, respectively. ConclusionGlycolipid metabolic abnormalities are associated with an increased risk of incident colorectal cancer. The glycolipid abnormality index shows an increasing relationship with colorectal cancer risk and demonstrates better discrimination, and it partially mediates the associations of smoking, alcohol consumption, and physical activity with colorectal cancer incidence in the overall population.
2.The integration of machine learning into traditional Chinese medicine.
Yanfeng HONG ; Sisi ZHU ; Yuhong LIU ; Chao TIAN ; Hongquan XU ; Gongxing CHEN ; Lin TAO ; Tian XIE
Journal of Pharmaceutical Analysis 2025;15(8):101157-101157
Traditional Chinese medicine (TCM) is an ancient medical system distinctive and effective in treating cancer, depression, coronavirus disease 2019 (COVID-19), and other diseases. However, the relatively abstract diagnostic methods of TCM lack objective measurement, and the complex mechanisms of action are difficult to comprehend, which hinders the application and internationalization of TCM. Recently, while breakthroughs have been made in utilizing methods such as network pharmacology and virtual screening for TCM research, the rise of machine learning (ML) has significantly enhanced their integration with TCM. This article introduces representative methodological cases in quality control, mechanism research, diagnosis, and treatment processes of TCM, revealing the potential applications of ML technology in TCM. Furthermore, the challenges faced by ML in TCM applications are summarized, and future directions are discussed.
3.Inhibition of WAC alleviates the chondrocyte proinflammatory secretory phenotype and cartilage degradation via H2BK120ub1 and H3K27me3 coregulation.
Peitao XU ; Guiwen YE ; Xiaojun XU ; Zhidong LIU ; Wenhui YU ; Guan ZHENG ; Zepeng SU ; Jiajie LIN ; Yunshu CHE ; Yipeng ZENG ; Zhikun LI ; Pei FENG ; Qian CAO ; Zhongyu XIE ; Yanfeng WU ; Huiyong SHEN ; Jinteng LI
Acta Pharmaceutica Sinica B 2025;15(8):4064-4077
Several types of arthritis share the common feature that the generation of inflammatory mediators leads to joint cartilage degradation. However, the shared mechanism is largely unknown. H2BK120ub1 was reportedly involved in various inflammatory diseases but its role in the shared mechanism in inflammatory joint conditions remains elusive. The present study demonstrated that levels of cartilage degradation, H2BK120ub1, and its regulator WW domain-containing adapter protein with coiled-coil (WAC) were increased in cartilage in human rheumatoid arthritis (RA) and osteoarthritis (OA) patients as well as in experimental RA and OA mice. By regulating H2BK120ub1 and H3K27me3, WAC regulated the secretion of inflammatory and cartilage-degrading factors. WAC influenced the level of H3K27me3 by regulating nuclear entry of the H3K27 demethylase KDM6B, and acted as a key factor of the crosstalk between H2BK120ub1 and H3K27me3. The cartilage-specific knockout of WAC demonstrated the ability to alleviate cartilage degradation in collagen-induced arthritis (CIA) and collagenase-induced osteoarthritis (CIOA) mice. Through molecular docking and dynamic simulation, doxercalciferol was found to inhibit WAC and the development of cartilage degradation in the CIA and CIOA models. Our study demonstrated that WAC is a key factor of cartilage degradation in arthritis, and targeting WAC by doxercalciferol could be a viable therapeutic strategy for treating cartilage destruction in several types of arthritis.
4.The integration of machine learning into traditional Chinese medicine
Yanfeng HONG ; Sisi ZHU ; Yuhong LIU ; Chao TIAN ; Hongquan XU ; Gongxing CHEN ; Lin TAO ; Tian XIE
Journal of Pharmaceutical Analysis 2025;15(8):1724-1737
Traditional Chinese medicine(TCM)is an ancient medical system distinctive and effective in treating cancer,depression,coronavirus disease 2019(COVID-19),and other diseases.However,the relatively abstract diagnostic methods of TCM lack objective measurement,and the complex mechanisms of action are difficult to comprehend,which hinders the application and internationalization of TCM.Recently,while breakthroughs have been made in utilizing methods such as network pharmacology and virtual screening for TCM research,the rise of machine learning(ML)has significantly enhanced their inte-gration with TCM.This article introduces representative methodological cases in quality control,mechanism research,diagnosis,and treatment processes of TCM,revealing the potential applications of ML technology in TCM.Furthermore,the challenges faced by ML in TCM applications are summarized,and future directions are discussed.
5.Expert consensus on intraoperative repositioning for patients with spine fracture and dislocation (version 2025)
Dongmei BIAN ; Ke SUN ; Ningbo CHEN ; Caixia BAI ; Miao WANG ; Yafeng QIAO ; Fei WANG ; Hong WANG ; Feng TIAN ; Mei YAN ; Meng BAI ; Linjuan ZHANG ; Liyan ZHAO ; Yaqing CUI ; Xue JIANG ; Leling FENG ; Ning NING ; Junqin DING ; Lan WEI ; Yonghua ZHAI ; Yu ZENG ; Zengmei ZHANG ; Jiqun HE ; Fenggui BIE ; Hong CHEN ; Zengyan WANG ; Li LI ; Li ZHANG ; Yaying ZHOU ; Bing SHAO ; Ying WANG ; Caixia XIE ; Yanfeng YAO ; Jingjing AN ; Wen SHI ; Xiongtao LIU ; Xiaoyan AN ; Ning NAN ; Lan LI ; Xiaohui GOU ; Qiaomei LI ; Xiuting WU ; Yuqin ZHANG ; Jing LIU ; Fusen XIANG ; Xu XU ; Na MEI ; Jiao ZHOU ; Shan FAN ; Qian WANG ; Shuixia LI
Chinese Journal of Trauma 2025;41(2):138-147
Spine fracture and dislocation are common traumatic spinal conditions that often require surgical intervention due to compromised spinal stability. Surgical approaches include anterior, posterior, and combined anterior-posterior spinal procedures. According to the specific surgical requirements, patients may be placed in the prone position or repositioned between prone and supine positions during surgery. Intraoperative repositioning has become an essential step in patient positioning. However, during repositioning, patients with spinal fracture and dislocation are at increased risk for complications such as hemodynamic instability, nerve injury, and pressure injuries to the skin and soft tissue. Notably, due to the instability of the spinal cord, even minor manipulations can further exacerbate the damage, potentially leading to severe outcomes like paraplegia. Although the current clinical guidelines provide instructive recommendations for standard position, there remains no specific protocols for intraoperative repositioning in patients with spine fracture and dislocation. With a concern for the lack of clinical studies on positioning techniques, risk prevention, and operational norms for special patients, no applicable guidelines or standards are available. A consensus was required to provide clinical reference, meet the requirements of surgical treatment, and minimize the safety risks of patients caused by improper placement of positions. Professional Committee of Operating Room Nursing of Shaanxi Nursing Association organized experts in nursing management and operating room nursing from major hospitals across China to formulate Expert consensus on intraoperative repositioning for patients with spinal fracture and dislocation ( version 2025). The consensus provides 11 recommendations covering pre-repositioning preparation, intraoperative maneuvers, and post-repositioning observation, aiming to provide references for clinical standardization of the intraoperative repositioning process and protection of patients′ safety.
6.Expert consensus on intraoperative repositioning for patients with spine fracture and dislocation (version 2025)
Dongmei BIAN ; Ke SUN ; Ningbo CHEN ; Caixia BAI ; Miao WANG ; Yafeng QIAO ; Fei WANG ; Hong WANG ; Feng TIAN ; Mei YAN ; Meng BAI ; Linjuan ZHANG ; Liyan ZHAO ; Yaqing CUI ; Xue JIANG ; Leling FENG ; Ning NING ; Junqin DING ; Lan WEI ; Yonghua ZHAI ; Yu ZENG ; Zengmei ZHANG ; Jiqun HE ; Fenggui BIE ; Hong CHEN ; Zengyan WANG ; Li LI ; Li ZHANG ; Yaying ZHOU ; Bing SHAO ; Ying WANG ; Caixia XIE ; Yanfeng YAO ; Jingjing AN ; Wen SHI ; Xiongtao LIU ; Xiaoyan AN ; Ning NAN ; Lan LI ; Xiaohui GOU ; Qiaomei LI ; Xiuting WU ; Yuqin ZHANG ; Jing LIU ; Fusen XIANG ; Xu XU ; Na MEI ; Jiao ZHOU ; Shan FAN ; Qian WANG ; Shuixia LI
Chinese Journal of Trauma 2025;41(2):138-147
Spine fracture and dislocation are common traumatic spinal conditions that often require surgical intervention due to compromised spinal stability. Surgical approaches include anterior, posterior, and combined anterior-posterior spinal procedures. According to the specific surgical requirements, patients may be placed in the prone position or repositioned between prone and supine positions during surgery. Intraoperative repositioning has become an essential step in patient positioning. However, during repositioning, patients with spinal fracture and dislocation are at increased risk for complications such as hemodynamic instability, nerve injury, and pressure injuries to the skin and soft tissue. Notably, due to the instability of the spinal cord, even minor manipulations can further exacerbate the damage, potentially leading to severe outcomes like paraplegia. Although the current clinical guidelines provide instructive recommendations for standard position, there remains no specific protocols for intraoperative repositioning in patients with spine fracture and dislocation. With a concern for the lack of clinical studies on positioning techniques, risk prevention, and operational norms for special patients, no applicable guidelines or standards are available. A consensus was required to provide clinical reference, meet the requirements of surgical treatment, and minimize the safety risks of patients caused by improper placement of positions. Professional Committee of Operating Room Nursing of Shaanxi Nursing Association organized experts in nursing management and operating room nursing from major hospitals across China to formulate Expert consensus on intraoperative repositioning for patients with spinal fracture and dislocation ( version 2025). The consensus provides 11 recommendations covering pre-repositioning preparation, intraoperative maneuvers, and post-repositioning observation, aiming to provide references for clinical standardization of the intraoperative repositioning process and protection of patients′ safety.
7.Investigation and research on surgical intervention after conversion therapy for advanced gastric cancer
Huayuan LIANG ; Qing XIE ; Xiaowen SUN ; Xinhua CHEN ; Tian LIN ; Li'na YU ; Zhao CHEN ; Jiang YU ; Yanfeng HU ; Liying ZHAO ; Guoxin LI
Chinese Journal of Digestive Surgery 2024;23(11):1430-1436
Objective:To investigate the current status of surgical intervention after conversion therapy for advanced gastric cancer.Methods:The retrospective cross-sectional investigation study was conducted. The investigation was conducted on clinicians who were qualified for the diagnosis and treatment of gastric cancer in 161 hospitals nationwide from December 11 to 22,2023. The questionnaire of "Survey on the Current Status of Surgical Intervention after Conversion Therapy for Advanced Gastric Cancer" was designed and distributed through WeChat based on the software platform of Wenjuanxing. Count data were expressed as absolute numbers and percentages.Results:(1) Results of the questionnaire. Of the 233 clinicians, the percentage of completed questionnaires, recovered questionnaires, and valid questionnaires were all of 100.00%(233/233). (2) Basic information of clinicians. Of the 233 clinicians, there were 213 males and 20 females. The numbers of clinicians aged ≤30 years, 31-40 years, 41-50 years, and >50 years were 1, 47, 109, and 76, respectively. The numbers of surgeons, internists, radiotherapists, and pathologists were 193, 36, 3, and 1, respectively. The numbers of chief physicians, deputy chief physicians, attending physicians, and resident physicians were 133, 75, 21, and 4, respectively. The numbers of clinicians with years of practice as >20 years, 11-20 years, 6-10 years, and ≤5 years were125, 88, 19, and 1, respectively. The numbers of clinicians from provincial-level tertiary general hospitals, provincial-level tertiary specialized oncology hospitals, municipal-level tertiary hospitals, and tertiary hospitals of B and below were 102, 58, 59, and 14, respectively. (3) Conversion therapy of advanced gastric cancer. Of the 233 clinicians, there were 54.94%(128/233) of clinicians whose units had admitted more than 100 gastric cases per year, 81.97%(191/233) of clinicians whose units had experience in surgical resection after conversion therapy of advanced gastric cancer, 66.52%(155/233) of clinicians whose units had proportion of successful surgical resection after conversion therapy of advanced gastric cancer exceeded 5%, and 51.50%(120/233) of clinicians whose units had the proportion of laparoscopic exploration+peritoneal lavage cytology to clarify the tumor stage at the initial diagnosis ≤10%. (4) Strategy selection after conversion therapy for advanced gastric cancer. Of the 233 clinicians, 63.52%(148/233) of them routinely mentioned to patients that they might be able to obtain chance of surgery after conversion therapy. There were 85.41%(199/233), 79.83%(186/233), and 68.67%(160/233) of clinicians considering possible risks as drug resistance, subsequent chemotherapy-immunotherapy or radiotherapy and other related adverse reactions and aggravation of distant toxicity, and distant organ metastasis for advanced gastric cancer patients to continue palliative care after conversion therapy. There were 85.41%(199/233), 50.21%(117/233), and 18.45%(43/233) of clinicians considering choices as multi-disciplinary treatment to evaluate the follow-up treatment strategy, laparoscopic exploration to clarify the possibility of surgery, and continuing the original program of palliative care for follow-up treatment of patients with advanced gastric cancer after conversion therapy. There were 97.85%(228/233) of clinicians considering re-evaluating the possibility of surgical resection when the tumor volume was significantly reduced after conversion therapy. (5) Selection of beneficiary population, treatment modality, and time point of evaluation of benefit for patients undergoing conversion surgery for advanced gastric cancer. A further questionnaire survey was conducted on the 228 clinicians who chose "to consider re-evaluating surgical resection when the volume of tumor reducted significantly after conversion therapy for advanced gastric cancer". There were 94.74%(216/228) of clinicians considering advanced gastric cancer patients with high expression of programmed death receptor ligand 1 as beneficiary population of conversion therapy. There were 82.46%(188/228) of clinicians considering advanced gastric cancer patients with liver oligometastases as beneficiary population of conversion therapy. There were 53.07%(121/228) of clinicians considering two-drug chemotherapy+immunotherapy regimen as preferred for HER2-negative patients, there were 67.54%(154/228) of clinicians considering chemotherapy + trastuzumab + immunotherapy regimen as preferred for HER2-positive patients. There were 83.33%(190/228) of clinicians considering resection treatment after 3-6 cycles of conversion therapy. There were 94.74%(216/228) of clinicians choosing enhanced computed tomography scan to evaluate the efficacy. In terms of tumor sign for laparoscopic surgery after conversion therapy, there were 92.54%(211/228) of clinicians choosing significant shrinkage of the primary focus and its surrounding lymph nodes from baseline. There were 63.16%(144/228) of clinicians choosing surgery after 3-4 weeks of drug withdrawal, and 57.02%(130/228) of clinicians considering to achieve R 0 resection. In terms of patients achieving pathologic complete remission (pCR) after surgery, there were 64.04%(146/228) of clinicians believing that postoperative treatment should be continued for 6-8 cycles of therapy followed by maintenance therapy up to 1 year. For patients with non-pCR, there were 59.65%(136/228) of clinicians believing that 6-8 cycles of postoperative maintenance therapy should be continued until 1 year. Conclusion:Most clinicians in China consider R 0 resection after conversion therapy for patients with advanced gastric cancer, followed by 6-8 cycles of treatment and maintenance therapy for another year.
8.Overexpression of HMBOX1 mediates NF-κB/CCL2 signaling pathway to inhibit the infiltration and activation of pulmonary macrophages induced by COPD
Shu XIE ; Fangying YANG ; Jian HUANG ; Yanfeng LIU
Immunological Journal 2024;40(6):496-502
This study was designed to explore whether overexpression of HMBOX1 inhibits COPD-induced infiltration and pulmonary macrophage activation by regulating NF-κB/CCL2 signaling pathway.Forty Wistar rats were randomly divided into control group,chronic obstructive pulmonary disease group(COPD group),COPD+control overexpression group(COPD+ov-NC group)and chronic COPD+HMBOX1 overexpression group(COPD+ov-HMBOX1 group),with 10 rats in each group.The COPD model was established by continuous cigarette incense and intermittent intratracheal injection of lipopolysaccharide,wihle the HMBOX1 overexpression treatmet was carried out by intratracheal instillation of HMBOX1 overexpressing adenovirus.Western blot was used to detect the expression of HMBOX1,p-NF-κB and NF-κB proteins in lung tissue of rats;RT-qPCR was used to detect the mRNA expression of HMBOX1 and CCL2 in rat lung tissue;HE staining was used to observe the pathological changes of lung tissue in rats;ELISA was applied to detect the levels of TNF-α,MIP-2,IL-1β and IL-10 in serum and BALF of rats.Furthermore,the ratio of CD11b+F4/80+cells in lung tissue of rats was detected by immunofluorescence,while the ratio of F4/80+MHC Ⅱ+cells and F4/80+CD80+cells in lung tissue of rats was detected by flow cytometry.In control group,the alveolar structure of rats was intact,and no inflammatory cell infiltration was found.In COPD group and COPD+ov-NC group,a large number of inflammatory cells infiltrated into the lung tissue and alveolar structure was damaged.In COPD+ov-HMBOX1 group,there were fewer inflammatory cells infiltrated in lung tissue,and the damage of alveolar structure was alleviated.Compared with the control group,the mRNA and protein expression of HMBOX1 in lung tissue,the levels of IL-10 in serum and BALF,the levels of TNF-α,MIP-2 and IL-1β in serum and BALF,CD11b+F4/80+cells,F4/80+MHC Ⅱ+cells and F4/80+CD80+cells in lung tissue of rats in COPD and COPD+ov-NC groups were significantly decreased.HMBOX1 overexpression could revers the changes mentioned above in the two COPD groups.Taken together,overexpression of HMBOX1 can alleviate COPD-induced airway inflammation and lung injury,and its mechanism may be related to inhibiting infiltration and abnormal activation of macrophages in lung tissue mediated by activation of NF-κB/CCL2 signaling pathway.
9.Overexpression of HMBOX1 mediates NF-κB/CCL2 signaling pathway to inhibit the infiltration and activation of pulmonary macrophages induced by COPD
Shu XIE ; Fangying YANG ; Jian HUANG ; Yanfeng LIU
Immunological Journal 2024;40(6):496-502
This study was designed to explore whether overexpression of HMBOX1 inhibits COPD-induced infiltration and pulmonary macrophage activation by regulating NF-κB/CCL2 signaling pathway.Forty Wistar rats were randomly divided into control group,chronic obstructive pulmonary disease group(COPD group),COPD+control overexpression group(COPD+ov-NC group)and chronic COPD+HMBOX1 overexpression group(COPD+ov-HMBOX1 group),with 10 rats in each group.The COPD model was established by continuous cigarette incense and intermittent intratracheal injection of lipopolysaccharide,wihle the HMBOX1 overexpression treatmet was carried out by intratracheal instillation of HMBOX1 overexpressing adenovirus.Western blot was used to detect the expression of HMBOX1,p-NF-κB and NF-κB proteins in lung tissue of rats;RT-qPCR was used to detect the mRNA expression of HMBOX1 and CCL2 in rat lung tissue;HE staining was used to observe the pathological changes of lung tissue in rats;ELISA was applied to detect the levels of TNF-α,MIP-2,IL-1β and IL-10 in serum and BALF of rats.Furthermore,the ratio of CD11b+F4/80+cells in lung tissue of rats was detected by immunofluorescence,while the ratio of F4/80+MHC Ⅱ+cells and F4/80+CD80+cells in lung tissue of rats was detected by flow cytometry.In control group,the alveolar structure of rats was intact,and no inflammatory cell infiltration was found.In COPD group and COPD+ov-NC group,a large number of inflammatory cells infiltrated into the lung tissue and alveolar structure was damaged.In COPD+ov-HMBOX1 group,there were fewer inflammatory cells infiltrated in lung tissue,and the damage of alveolar structure was alleviated.Compared with the control group,the mRNA and protein expression of HMBOX1 in lung tissue,the levels of IL-10 in serum and BALF,the levels of TNF-α,MIP-2 and IL-1β in serum and BALF,CD11b+F4/80+cells,F4/80+MHC Ⅱ+cells and F4/80+CD80+cells in lung tissue of rats in COPD and COPD+ov-NC groups were significantly decreased.HMBOX1 overexpression could revers the changes mentioned above in the two COPD groups.Taken together,overexpression of HMBOX1 can alleviate COPD-induced airway inflammation and lung injury,and its mechanism may be related to inhibiting infiltration and abnormal activation of macrophages in lung tissue mediated by activation of NF-κB/CCL2 signaling pathway.
10.Investigation and research on surgical intervention after conversion therapy for advanced gastric cancer
Huayuan LIANG ; Qing XIE ; Xiaowen SUN ; Xinhua CHEN ; Tian LIN ; Li'na YU ; Zhao CHEN ; Jiang YU ; Yanfeng HU ; Liying ZHAO ; Guoxin LI
Chinese Journal of Digestive Surgery 2024;23(11):1430-1436
Objective:To investigate the current status of surgical intervention after conversion therapy for advanced gastric cancer.Methods:The retrospective cross-sectional investigation study was conducted. The investigation was conducted on clinicians who were qualified for the diagnosis and treatment of gastric cancer in 161 hospitals nationwide from December 11 to 22,2023. The questionnaire of "Survey on the Current Status of Surgical Intervention after Conversion Therapy for Advanced Gastric Cancer" was designed and distributed through WeChat based on the software platform of Wenjuanxing. Count data were expressed as absolute numbers and percentages.Results:(1) Results of the questionnaire. Of the 233 clinicians, the percentage of completed questionnaires, recovered questionnaires, and valid questionnaires were all of 100.00%(233/233). (2) Basic information of clinicians. Of the 233 clinicians, there were 213 males and 20 females. The numbers of clinicians aged ≤30 years, 31-40 years, 41-50 years, and >50 years were 1, 47, 109, and 76, respectively. The numbers of surgeons, internists, radiotherapists, and pathologists were 193, 36, 3, and 1, respectively. The numbers of chief physicians, deputy chief physicians, attending physicians, and resident physicians were 133, 75, 21, and 4, respectively. The numbers of clinicians with years of practice as >20 years, 11-20 years, 6-10 years, and ≤5 years were125, 88, 19, and 1, respectively. The numbers of clinicians from provincial-level tertiary general hospitals, provincial-level tertiary specialized oncology hospitals, municipal-level tertiary hospitals, and tertiary hospitals of B and below were 102, 58, 59, and 14, respectively. (3) Conversion therapy of advanced gastric cancer. Of the 233 clinicians, there were 54.94%(128/233) of clinicians whose units had admitted more than 100 gastric cases per year, 81.97%(191/233) of clinicians whose units had experience in surgical resection after conversion therapy of advanced gastric cancer, 66.52%(155/233) of clinicians whose units had proportion of successful surgical resection after conversion therapy of advanced gastric cancer exceeded 5%, and 51.50%(120/233) of clinicians whose units had the proportion of laparoscopic exploration+peritoneal lavage cytology to clarify the tumor stage at the initial diagnosis ≤10%. (4) Strategy selection after conversion therapy for advanced gastric cancer. Of the 233 clinicians, 63.52%(148/233) of them routinely mentioned to patients that they might be able to obtain chance of surgery after conversion therapy. There were 85.41%(199/233), 79.83%(186/233), and 68.67%(160/233) of clinicians considering possible risks as drug resistance, subsequent chemotherapy-immunotherapy or radiotherapy and other related adverse reactions and aggravation of distant toxicity, and distant organ metastasis for advanced gastric cancer patients to continue palliative care after conversion therapy. There were 85.41%(199/233), 50.21%(117/233), and 18.45%(43/233) of clinicians considering choices as multi-disciplinary treatment to evaluate the follow-up treatment strategy, laparoscopic exploration to clarify the possibility of surgery, and continuing the original program of palliative care for follow-up treatment of patients with advanced gastric cancer after conversion therapy. There were 97.85%(228/233) of clinicians considering re-evaluating the possibility of surgical resection when the tumor volume was significantly reduced after conversion therapy. (5) Selection of beneficiary population, treatment modality, and time point of evaluation of benefit for patients undergoing conversion surgery for advanced gastric cancer. A further questionnaire survey was conducted on the 228 clinicians who chose "to consider re-evaluating surgical resection when the volume of tumor reducted significantly after conversion therapy for advanced gastric cancer". There were 94.74%(216/228) of clinicians considering advanced gastric cancer patients with high expression of programmed death receptor ligand 1 as beneficiary population of conversion therapy. There were 82.46%(188/228) of clinicians considering advanced gastric cancer patients with liver oligometastases as beneficiary population of conversion therapy. There were 53.07%(121/228) of clinicians considering two-drug chemotherapy+immunotherapy regimen as preferred for HER2-negative patients, there were 67.54%(154/228) of clinicians considering chemotherapy + trastuzumab + immunotherapy regimen as preferred for HER2-positive patients. There were 83.33%(190/228) of clinicians considering resection treatment after 3-6 cycles of conversion therapy. There were 94.74%(216/228) of clinicians choosing enhanced computed tomography scan to evaluate the efficacy. In terms of tumor sign for laparoscopic surgery after conversion therapy, there were 92.54%(211/228) of clinicians choosing significant shrinkage of the primary focus and its surrounding lymph nodes from baseline. There were 63.16%(144/228) of clinicians choosing surgery after 3-4 weeks of drug withdrawal, and 57.02%(130/228) of clinicians considering to achieve R 0 resection. In terms of patients achieving pathologic complete remission (pCR) after surgery, there were 64.04%(146/228) of clinicians believing that postoperative treatment should be continued for 6-8 cycles of therapy followed by maintenance therapy up to 1 year. For patients with non-pCR, there were 59.65%(136/228) of clinicians believing that 6-8 cycles of postoperative maintenance therapy should be continued until 1 year. Conclusion:Most clinicians in China consider R 0 resection after conversion therapy for patients with advanced gastric cancer, followed by 6-8 cycles of treatment and maintenance therapy for another year.

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