Objective:To analyze the long-term trends in cause-specific mortality across different sexes and age groups in China from 1990 to 2021, and quantitatively assess the impact of population aging on cause-specific deaths by sex.Methods:Based on data from the Global Burden of Disease Study 2021, this study extracted the number of deaths, crude mortality rates and age-standardized mortality rates (ASMRs) for all causes, Level 1 causes (communicable, maternal, neonatal, and nutritional diseases; non-communicable diseases; injuries) and Level 3 causes in China from 1990 to 2021, stratified by sex and age group. This study analyzed the current situation and long-term trends in mortality in China, applying decomposition analysis to quantify the impact of population aging on the number of deaths.Results:In 2021, the ASMRs of all-cause death and the three primary causes of death in Level 1 in China were 644.68, 26.59, 575.55, and 41.82 per 100 000, respectively. The ASMRs of the three primary causes continued to decline, with the smallest decrease observed in non-communicable diseases [EAPC=-1.79%, 95% CI (-1.92%, -1.66%)] and the largest in communicable, maternal, neonatal, and nutritional diseases (CMNND) [EAPC=-5.86%, 95% CI (-6.06%, -5.65%)]. The ASMRs were higher in males than females, with a smaller decline. Mortality was higher in the elderly. CMNND deaths mainly occurred in children under 5 and the elderly; non-communicable disease deaths were concentrated in the elderly; injury deaths were relatively evenly distributed across age groups. The proportion of CMNND deaths decreased annually, while the proportion of non-communicable disease deaths increased. From 1990 to 2021, population aging contributed to an increase of 8.11 million all-cause deaths, 167 464.42 CMNND deaths, 7.74 million non-communicable diseases deaths, and 196 287.78 injury deaths. The impact of population aging differed by sex and disease, with male and female aging-related deaths increasing by 4.47 million and 3.70 million, respectively. Compared to 1990, the age-specific mortality rate contributions in 2021 were -72.82% for males and -93.87% for females, with variations by sex and disease. Conclusion:The composition of disease-related deaths in China has changed notably. Population aging is linked to the sharp rise in deaths, with varying impacts across sexes and diseases. Reducing disease mortality can help lessen the negative effects of population aging.

Objective:To investigate the heterogeneity of peripheral blood neutrophils in sepsis and provide reference for the diagnosis of sepsis.Methods:Twenty-four male C57BL/6 mice were divided into two groups, control and sepsis groups, with 12 mice in each group using a completely randomized design. The mice in the control group were injected with 100 μl saline through the tail vein, while the mice in the sepsis group were injected with an equal amount of Escherichia coli solution (3.33 McFarland turbidity standards) through the tail vein to establish the sepsis model. Peripheral blood samples were collected, and the proportions of neutrophils expressing different surface markers were detected using mass cytometry. GO and KEGG analyses were performed on neutrophil subsets with high CD62L expression, and public datasets were used for verification. The protein-protein interaction networks of CD62L were investigated to assess the value of neutrophil heterogeneity in the diagnosis of sepsis. Results:There were significant differences in the expression of markers in peripheral blood samples between the sepsis group and the control group. CD62L + neutrophil subsets were found in mice with sepsis. GO and KEGG analyses showed that CD62L + neutrophil subsets were associated with multiple biological processes and signaling pathways such as cell adhesion, migration, surface receptor activation, and immune regulation. Clinical results confirmed the correlation of neutrophil CD62L expression with the severity and prognosis of sepsis. The number of subpopulations expressing CD62L in peripheral blood neutrophils in the sepsis group was higher than that in the control group, but the expression level of CD62L in single cells in the sepsis group was significantly lower than that in the control group ( P<0.01). Protein-protein interaction network analysis showed strong interaction between CD62L and multiple important proteins such as P-selectin, P-selectin ligand, E-selectin, and vascular cell adhesion molecule-1. Conclusion:There is heterogeneity in the surface markers of neutrophils between sepsis mice and control mice, which may be a potential indicator for the diagnosis of sepsis.

Insufficient future liver remnant is one of the main reasons for initially unresec-table of hepatocellular carcinoma (HCC). Surgical or interventional treatments can promote the hyper-trophy of insufficient remnant liver, thus enabling the post-conversion resection of HCC. Commonly used methods to promote liver hypertrophy include portal vein ligation, portal vein embolization, associating liver partition and portal vein ligation for staged hepatectomy, and liver venous depriva-tion. All of these four treatmental methods can promote liver hypertrophy, but there are also certain differences in terms of safety and the efficiency of promoting liver hypertrophy. With the continuous development of concepts and methods in surgical treatment, local non-surgical treatment and systemic therapy of HCC, individualized, multi-mode, and multi-dimensional comprehensive treatments guided by the concept of multidisciplinary comprehensive treatment and combined with the specific situation of patients, team diagnosis and treatment experience, and technical conditions, are being widely used in the conversion therapy of HCC with insufficient future liver remnant, and help to further improve the survival prognosis of HCC patients. Herein, the authors comprehensively review relevant research progress and elaborate on the strategies, methods, and future development trends of conversion therapy for HCC with insufficient future liver remnant.

On the occasion of the 110th Anniversary of the establishment of the Chinese Medical Association, the third conference of the Fourth Editorial Board of Chinese Journal of Digestive Surgery, and the Second Elite Group of Chinese Journal of Digestive Surgery, was successfully held in Kunming on July 4, 2025. This conference systematically summarizes the development experience of the journal over the past 20 years from three aspects: the role of ecological construction of thought in the discipline construction of digestive surgery, the display of the latest academic achievements in the field of digestive surgery, the development difficulties, and breakthrough paths of the discipline, and strategically plans the path of discipline construction in the new era.

Objective:To understand the status of human resources allocation of non-profit pension institutions in representative cities of our country, analyze the existing problems and put forward countermeasures and suggestions, in order to provide reference for improving the service quality of non-profit pension institutions in cities.Methods:From October to December 2020, 5 sub-provincial capitals and 1 municipality directly under the central regions were selected by random sampling in Northeast, Northwest, Southeast, Southwest and Central Plains, and 60 non-profit pension institutions were selected as research objects by purpose sampling, and a questionnaire survey was conducted on the human resources allocation of pension institutions.Results:Among the elderly care institutions investigated, 48 were registered medical and nursing care institutions. There were 25 elderly care institutions with medical beds, accounting for 41.7%(25/60); there were 39 nursing institutions with doctors, accounting for 65.0%(39/60); there were 53 nursing institutions with nurses, accounting for 88.3%(53/60); from the perspective of relative indicators, the number of medical staff per bed in 60 nursing institutions was 0.12, and the number of medical staff per bed in medical nursing institutions was 0.14.Conclusions:The personnel allocation of non-profit elderly care institutions is not reasonable, and there is a lack of professional multidisciplinary professional teams to provide elderly care services. The personnel allocation and demand of non-profit pension institutions do not match, and the supply and application of human resources are unbalanced. Non-profit pension institutions should continue to promote the combined development of medical and nursing care to meet the diversified needs of elderly people in pension institutions. It is suggested that relevant departments jointly formulate the human resources allocation standards for elderly care institutions, and strengthen the practice access, grading and assessment of medical and nursing professionals.

Objective:To analyze the long-term trends in cause-specific mortality across different sexes and age groups in China from 1990 to 2021, and quantitatively assess the impact of population aging on cause-specific deaths by sex.Methods:Based on data from the Global Burden of Disease Study 2021, this study extracted the number of deaths, crude mortality rates and age-standardized mortality rates (ASMRs) for all causes, Level 1 causes (communicable, maternal, neonatal, and nutritional diseases; non-communicable diseases; injuries) and Level 3 causes in China from 1990 to 2021, stratified by sex and age group. This study analyzed the current situation and long-term trends in mortality in China, applying decomposition analysis to quantify the impact of population aging on the number of deaths.Results:In 2021, the ASMRs of all-cause death and the three primary causes of death in Level 1 in China were 644.68, 26.59, 575.55, and 41.82 per 100 000, respectively. The ASMRs of the three primary causes continued to decline, with the smallest decrease observed in non-communicable diseases [EAPC=-1.79%, 95% CI (-1.92%, -1.66%)] and the largest in communicable, maternal, neonatal, and nutritional diseases (CMNND) [EAPC=-5.86%, 95% CI (-6.06%, -5.65%)]. The ASMRs were higher in males than females, with a smaller decline. Mortality was higher in the elderly. CMNND deaths mainly occurred in children under 5 and the elderly; non-communicable disease deaths were concentrated in the elderly; injury deaths were relatively evenly distributed across age groups. The proportion of CMNND deaths decreased annually, while the proportion of non-communicable disease deaths increased. From 1990 to 2021, population aging contributed to an increase of 8.11 million all-cause deaths, 167 464.42 CMNND deaths, 7.74 million non-communicable diseases deaths, and 196 287.78 injury deaths. The impact of population aging differed by sex and disease, with male and female aging-related deaths increasing by 4.47 million and 3.70 million, respectively. Compared to 1990, the age-specific mortality rate contributions in 2021 were -72.82% for males and -93.87% for females, with variations by sex and disease. Conclusion:The composition of disease-related deaths in China has changed notably. Population aging is linked to the sharp rise in deaths, with varying impacts across sexes and diseases. Reducing disease mortality can help lessen the negative effects of population aging.

Insufficient future liver remnant is one of the main reasons for initially unresec-table of hepatocellular carcinoma (HCC). Surgical or interventional treatments can promote the hyper-trophy of insufficient remnant liver, thus enabling the post-conversion resection of HCC. Commonly used methods to promote liver hypertrophy include portal vein ligation, portal vein embolization, associating liver partition and portal vein ligation for staged hepatectomy, and liver venous depriva-tion. All of these four treatmental methods can promote liver hypertrophy, but there are also certain differences in terms of safety and the efficiency of promoting liver hypertrophy. With the continuous development of concepts and methods in surgical treatment, local non-surgical treatment and systemic therapy of HCC, individualized, multi-mode, and multi-dimensional comprehensive treatments guided by the concept of multidisciplinary comprehensive treatment and combined with the specific situation of patients, team diagnosis and treatment experience, and technical conditions, are being widely used in the conversion therapy of HCC with insufficient future liver remnant, and help to further improve the survival prognosis of HCC patients. Herein, the authors comprehensively review relevant research progress and elaborate on the strategies, methods, and future development trends of conversion therapy for HCC with insufficient future liver remnant.

On the occasion of the 110th Anniversary of the establishment of the Chinese Medical Association, the third conference of the Fourth Editorial Board of Chinese Journal of Digestive Surgery, and the Second Elite Group of Chinese Journal of Digestive Surgery, was successfully held in Kunming on July 4, 2025. This conference systematically summarizes the development experience of the journal over the past 20 years from three aspects: the role of ecological construction of thought in the discipline construction of digestive surgery, the display of the latest academic achievements in the field of digestive surgery, the development difficulties, and breakthrough paths of the discipline, and strategically plans the path of discipline construction in the new era.

Objective:To understand the status of human resources allocation of non-profit pension institutions in representative cities of our country, analyze the existing problems and put forward countermeasures and suggestions, in order to provide reference for improving the service quality of non-profit pension institutions in cities.Methods:From October to December 2020, 5 sub-provincial capitals and 1 municipality directly under the central regions were selected by random sampling in Northeast, Northwest, Southeast, Southwest and Central Plains, and 60 non-profit pension institutions were selected as research objects by purpose sampling, and a questionnaire survey was conducted on the human resources allocation of pension institutions.Results:Among the elderly care institutions investigated, 48 were registered medical and nursing care institutions. There were 25 elderly care institutions with medical beds, accounting for 41.7%(25/60); there were 39 nursing institutions with doctors, accounting for 65.0%(39/60); there were 53 nursing institutions with nurses, accounting for 88.3%(53/60); from the perspective of relative indicators, the number of medical staff per bed in 60 nursing institutions was 0.12, and the number of medical staff per bed in medical nursing institutions was 0.14.Conclusions:The personnel allocation of non-profit elderly care institutions is not reasonable, and there is a lack of professional multidisciplinary professional teams to provide elderly care services. The personnel allocation and demand of non-profit pension institutions do not match, and the supply and application of human resources are unbalanced. Non-profit pension institutions should continue to promote the combined development of medical and nursing care to meet the diversified needs of elderly people in pension institutions. It is suggested that relevant departments jointly formulate the human resources allocation standards for elderly care institutions, and strengthen the practice access, grading and assessment of medical and nursing professionals.

Objective:To investigate the heterogeneity of peripheral blood neutrophils in sepsis and provide reference for the diagnosis of sepsis.Methods:Twenty-four male C57BL/6 mice were divided into two groups, control and sepsis groups, with 12 mice in each group using a completely randomized design. The mice in the control group were injected with 100 μl saline through the tail vein, while the mice in the sepsis group were injected with an equal amount of Escherichia coli solution (3.33 McFarland turbidity standards) through the tail vein to establish the sepsis model. Peripheral blood samples were collected, and the proportions of neutrophils expressing different surface markers were detected using mass cytometry. GO and KEGG analyses were performed on neutrophil subsets with high CD62L expression, and public datasets were used for verification. The protein-protein interaction networks of CD62L were investigated to assess the value of neutrophil heterogeneity in the diagnosis of sepsis. Results:There were significant differences in the expression of markers in peripheral blood samples between the sepsis group and the control group. CD62L + neutrophil subsets were found in mice with sepsis. GO and KEGG analyses showed that CD62L + neutrophil subsets were associated with multiple biological processes and signaling pathways such as cell adhesion, migration, surface receptor activation, and immune regulation. Clinical results confirmed the correlation of neutrophil CD62L expression with the severity and prognosis of sepsis. The number of subpopulations expressing CD62L in peripheral blood neutrophils in the sepsis group was higher than that in the control group, but the expression level of CD62L in single cells in the sepsis group was significantly lower than that in the control group ( P<0.01). Protein-protein interaction network analysis showed strong interaction between CD62L and multiple important proteins such as P-selectin, P-selectin ligand, E-selectin, and vascular cell adhesion molecule-1. Conclusion:There is heterogeneity in the surface markers of neutrophils between sepsis mice and control mice, which may be a potential indicator for the diagnosis of sepsis.