Objective:To explore the current therapeutic status of rhythm control versus rate control in elderly patients with atrial fibrillation(AF)and the related factors that may influence treatment decisions.Methods:A retrospective study was conducted on AF patients aged ≥75 years old who were hospitalized in the Healthcare Department of Beijing Hospital from January 2010 to May 2020.The patients were grouped and compared according to whether they underwent rhythm control or rate control.Multivariate logistic regression analysis was used to investigate the factors that may influence the treatment decision of rhythm control or rate control.Results:A total of 167 patients was included, with a median age of 90 years old.Among them, 21 patients(12.6%)received rhythm control, and 109 patients(65.3%)received rate control.Compared with the group not receiving rhythm control, the rhythm control group had a younger age, higher BMI, higher diastolic blood pressure, a higher proportion of multiple medication use, a lower proportion of chronic kidney disease stage 3 or above, and higher hemoglobin levels(all P<0.05). Compared with the group not receiving rate control, the rate control group had a lower proportion of paroxysmal AF, a faster resting ventricular rate, a higher proportion of smoking history, a higher proportion of multiple medication use, coronary heart disease, pacemaker treatment, chronic obstructive pulmonary disease and/or asthma, and a lower proportion of cognitive impairment(all P<0.05). Multivariate logistic regression analysis revealed that multiple drug use( OR=11.578, 95% CI: 1.341-99.993, P=0.026)was positively associated with rhythm control therapy, while chronic kidney disease stage 3 or above( OR=0.248, 95% CI: 0.063-0.968, P=0.045)was negatively associated with rhythm control therapy.For rate control therapy, multiple drug use( OR=5.056, 95% CI: 2.253-11.347, P<0.001), resting ventricular rate( OR =1.033, 95% CI: 1.005-1.062, P=0.021), and chronic obstructive pulmonary disease(COPD)and/or asthma( OR=2.739, 95% CI: 1.124-6.672, P=0.027)showed positive associations. Conclusions:The application rate of rhythm control therapy is low in elderly AF patients, and ventricular rate control is the main treatment.Complex clinical conditions are the main constraints, and it is urgent to optimize individualized strategies based on prospective studies and develop new treatment techniques to improve clinical practice.

Objective To investigate the mechanism of action and potential biomarkers of Jiangzhi Qingshen capsules in the treatment of dyslipidaemia based on clinical lipid metabolomics.Methods 30 patients with dyslipidaemia from Zhengzhou Hospital of Chinese Medicine were collected as the test group,and their lipid levels before and after taking Jiang Zhi Qing Shen capsule for 12 weeks were compared.Another 30 healthy patients were enrolled in the physical examination department of Zhengzhou Hospital of Chinese Medicine,and metabolomics investigation was carried out on plasma samples of the test group before and after the treatment as well as those of the healthy patients by LC-MS/MS technology.The differences between the groups were compared by multivariate statistical analysis,and the potential biomarkers were identified by HMDB and lipidblast databases,so as to clarify the possible pathways and targets for the treatment of mild dyslipidaemia by Jiangzhi Qingshen capsules.Results Jiangzhi Qingshen capsules could improve patients' blood lipid level,BMI and abdominal circumference significantly(P<0.05).And metabolomics results showed that 29 lipid metabolites in the plasma of the treated patients were dialled back,which involved cholesterol metabolism,fat digestion and absorption,glycerol-phospholipid metabolism and other biological processes.Conclusion The efficacy of Jiangzhi Qingshen capsules in treating dyslipidaemia was confirmed,and its mechanism of action might be related to the regulation of lipid metabolism.Metabolites such as acylcarnitine(Acar),phosphatidylethanolamine(PE)and phosphatidylcholine(PC)were expected to be used as the biomarkers of dyslipidaemia,so as to provide objective scientific basis for the lipid-lowering capsule,and to facilitate the promotion of its application.

Abstract In recent years, the prevalence of overweight and obesity among children and adolescents has risen rapidly, posing a serious threat to their physical and mental health. To provide scientific, systematic, and standardized weight management guidance for overweight and obese children and adolescents, the study focuses on the core concept of healthy lifestyle intervention, integrates multidisciplinary expert opinions and research findings,and proposes a comprehensive multidisciplinary intervention framework covering scientific exercise intervention, precise nutrition and diet, optimized sleep management, and standardized psychological support. It calls for the establishment of a multi agent collaborative management mechanism led by the government, implemented by families, fostered by schools, initiated by individuals, optimized by communities, reinforced by healthcare, and coordinated by multiple stakeholders. Emphasizing a child and adolescent centered approach, the consensus advocates for comprehensive, multi level, and personalized guidance strategies to promote the internalization and maintenance of a healthy lifestyle. It serves as a reference and provides recommendations for the effective prevention and control of overweight and obesity, and enhancing the health level of children and adolescents.

AIM:This study aimed to investigate the effect of ischemic post-conditioning(I-post-C)on lung ischemia-reperfusion injury(LIRI)in rats and relationship between I-post-C and zinc homeostasis.METHODS:SPF SD rats(6～8 weeks old)were randomly divided into four groups,with eight rats in each group:control group,ischemia/reper-fusion(I/R)group,I-post-C group and I-post-C+zinc ion chelator TPEN group.Inductively coupled plasma mass spec-trometry(ICP-MS)was used to measure the concentration of zinc ions in lung tissues.HE staining,lung wet/dry weight ra-tio(W/D),total lung water content(TLW),and index of quantitative assessment(IQA)of lung injury were used to detect the degree of lung tissue injury in each group.Mitochondrial membrane potential was measured using extraction and JC-1 mitochondrial membrane potential detection kits.TUNEL assay was used to detect the level of apoptosis in lung tissues.Western blot was used to detect the protein expression levels of caspase-3,solute carrier family 39 member 8(SLC39A8/ZIP8),solute carrier family 30 member 9(SLC30A9/ZNT9),and PI3K/AKT/GSK-3β in lung tissues of each group.RT-qPCR was used to detect ZIP8 and ZNT9.RESULTS:Compared to the control group,the I/R group showed significantly aggravated lung tissue injury(P<0.01),decreased zinc ion levels(P<0.01),enhanced cell apoptosis(P<0.05),re-duced mitochondrial membrane potential(P<0.01),decreased PI3K/AKT/GSK-3β phosphorylation levels(P<0.05,P<0.01),increased cleaved caspase-3/pro-caspase-3 ratio(P<0.01),and reduced ZIP8 expression(P<0.05).Compared to the I/R group,the I-post-C group exhibited alleviated injury(P<0.05 or P<0.01),increased zinc ion levels(P<0.01),reduced apoptosis(P<0.01),restored mitochondrial membrane potential(P<0.01),elevated PI3K/AKT/GSK-3β phosphorylation levels(P<0.05,P<0.01),decreased cleaved caspase-3/pro-caspase-3 ratio(P<0.05),and in-creased ZIP8 expression(P<0.05).Compared to the I-post-C group,the I-post-C+TPEN group demonstrated aggravated injury(P<0.01),decreased zinc ion levels(P<0.01),enhanced apoptosis(P<0.01),reduced mitochondrial membrane potential(P<0.05),decreased PI3K/AKT/GSK-3β phosphorylation levels(P<0.05,P<0.01),increased cleaved cas-pase-3/pro-caspase-3 ratio(P<0.05),and reduced ZIP8 expression(P<0.05).ZNT9 expression showed no significant differences among the groups(P>0.05).CONCLUSION:Ischemic postconditioning can improve LIRI by regulating zinc homeostasis,activating PI3K/AKT signaling pathway,inactivating glycogen synthase kinase 3β,inhibiting the de-cline of mitochondrial membrane potential,and antagonizing cell apoptosis in rats.

AIM:To investigate the protective effect and mechanism of zinc ions on lung ischemia/reperfusion injury(LIRI)in rats.METHODS:SPF SD rats aged 6～8 weeks were divided randomly into 4 groups:control(control)group,ischemia/reperfusion(I/R)group,zinc chloride(ZnCl2)+I/R group,and PI3K inhibitor(LY294002)+ZnCl2+I/R group.Inductively coupled plasma mass spectrometry(ICP-MS)was used to measure the concentration of zinc ions in lung tissues,while the degree of lung tissue injury was assessed by HE staining,the alveolar damage index,and the lung wet/dry weight ratio.qPCR was used to detect the mRNA expression of solute carrier family 39 member 8(SLC39A8/ZIP8),with the TUNEL assay used to determine the level of apoptosis in lung tissue.The phosphorylation levels of caspase3,PI3K,AKT,GSK-3β,ZIP8,and solute carrier family 30 member 9(SLC30A9/ZNT9)were detected by Western blot,while the mitochondrial membrane potential was measured by the mitochondrial extraction kit and JC-1 mitochondrial mem-brane potential detection kit.RESULTS:Compared with the I/R group,the zinc ion level in the ZnCl2+I/R group in-creased(P<0.01),with the qPCR results showing that the expression level of ZIP8 also increased(P<0.01).The West-ern blot results demonstrated that the phosphorylation levels of PI3K/AKT/GSK-3β and cleaved caspase-3/pro were both in-creased(P<0.01 or P<0.05).In addition,the level of caspase-3 was decreased(P<0.01),the ZIP8 level was increased(P<0.05),whereas the level of ZNT9 was not significantly different(P>0.05).The mitochondrial membrane potential was increased(P<0.01)and the level of apoptosis was decreased(P<0.01).The results of HE staining,total lung water(TLW),lung index of quantitative assessment of histology(IQA),and lung tissue wet/dry weight ratio showed that the de-gree of injury was reduced significantly(P<0.05 or P<0.01).Compared with the ZnCl2+I/R group,the LY294002+Zn-Cl2+I/R group had a significant reduction in zinc ion levels(P<0.05),while qPCR showed a significant reduction in ZIP8 expression(P<0.01).Western blot showed that the phosphorylation level of PI3K/AKT/GSK-3β was decreased(P<0.01),the level of caspase-3/pro-caspase-3 was increased(P<0.01)the level of ZIP8 was decreased(P<0.05),al-though there was no significant difference in ZNT9(P>0.05).Measurements of the mitochondrial membrane potential demonstrated a significant decrease(P<0.01),while the TUNEL results showed that the level of apoptosis had increased(P<0.05).HE staining,TLW,IQA and lung tissue wet/dry weight ratio indicated that the degree of injury was aggravated significantly(P<0.05 or P<0.01).CONCLUSION:Administration of zinc chloride in rats has a protective role in lung ischemia/reperfusion injury by activating the PI3K/AKT pathway,leading to inactivation of GSK-3β,stabilization of the mitochondrial membrane potential level,and inhibition of cell apoptosis.

Objective:To analyze the clinicopathological characteristics of atypical teratoid/rhabdoid tumors (AT/RT) and the causes of pathological misdiagnosis, and summarize diagnostic strategies.Methods:A case series study was conducted.Specifically, the data of 5 misdiagnosed(misdiagnosed group) and 8 confirmed AT/RT cases(confirmed group) in the Department of Pathology of Xi′an Children′s Hospital from January 2010 to December 2018 were retrospectively analyzed.Hematoxylin-eosin and immunohistochemical staining were performed to analyze clinical features, morphology, and immune phenotypes.Rates were compared between the misdiagnosed and confirmed groups by a Fisher′s exact test.Means were compared using an independent sample t-test.Medians were compared by a Mann-Whitney U test. Results:(1)There were 4 males and 1 female in the misdiagnosed group, with a median age of 24 months.In this group, 4/5 tumors were located in the posterior cranial fossa, and 1/5 tumors were located in the spinal cord.Morphologically, rhabdoid cells were detected in 3/5 cases, and the other 2/5 cases consisted of small embryonal cells.Immunohistochemically, INI1 and BRG1 expressions were absent in 4/5 and 1/5 cases, respectively.All of them showed multiple immunephenotypes.There were 7 males and 1 female in the confirmed group, with a median age of 22 months.In the confirmed group, 4/8 tumors were located in the supratentorial region and 4/8 tumors were located in the infratentorial region.Rhabdoid cells, deficient INI1 expression and multiple immunephenotypes were observed in all 8 cases.(2)The percentage of rhabdoid cells in the misdiagnosed group was significantly lower[0.45(0, 0.46)] than that in the confirmed group[0.55(0.40, 0.85)]( Z=-2.064, P=0.039). Conclusions:The causes of misdiagnosis of AT/RT are variable sites of occurrence, diverse histomorphology, multiple phenotypes in immunohistochemistry and rare BRG1 deficiency.For high-grade rhabdoid, epithelioid, and/or embryonic small cell tumors, AT/RT should be differentiated and immunohistochemistry protocols should include INI1 and BRG1.

Objective To investigate the mechanism of action and potential biomarkers of Jiangzhi Qingshen capsules in the treatment of dyslipidaemia based on clinical lipid metabolomics.Methods 30 patients with dyslipidaemia from Zhengzhou Hospital of Chinese Medicine were collected as the test group,and their lipid levels before and after taking Jiang Zhi Qing Shen capsule for 12 weeks were compared.Another 30 healthy patients were enrolled in the physical examination department of Zhengzhou Hospital of Chinese Medicine,and metabolomics investigation was carried out on plasma samples of the test group before and after the treatment as well as those of the healthy patients by LC-MS/MS technology.The differences between the groups were compared by multivariate statistical analysis,and the potential biomarkers were identified by HMDB and lipidblast databases,so as to clarify the possible pathways and targets for the treatment of mild dyslipidaemia by Jiangzhi Qingshen capsules.Results Jiangzhi Qingshen capsules could improve patients' blood lipid level,BMI and abdominal circumference significantly(P<0.05).And metabolomics results showed that 29 lipid metabolites in the plasma of the treated patients were dialled back,which involved cholesterol metabolism,fat digestion and absorption,glycerol-phospholipid metabolism and other biological processes.Conclusion The efficacy of Jiangzhi Qingshen capsules in treating dyslipidaemia was confirmed,and its mechanism of action might be related to the regulation of lipid metabolism.Metabolites such as acylcarnitine(Acar),phosphatidylethanolamine(PE)and phosphatidylcholine(PC)were expected to be used as the biomarkers of dyslipidaemia,so as to provide objective scientific basis for the lipid-lowering capsule,and to facilitate the promotion of its application.

AIM:This study aimed to investigate the effect of ischemic post-conditioning(I-post-C)on lung ischemia-reperfusion injury(LIRI)in rats and relationship between I-post-C and zinc homeostasis.METHODS:SPF SD rats(6～8 weeks old)were randomly divided into four groups,with eight rats in each group:control group,ischemia/reper-fusion(I/R)group,I-post-C group and I-post-C+zinc ion chelator TPEN group.Inductively coupled plasma mass spec-trometry(ICP-MS)was used to measure the concentration of zinc ions in lung tissues.HE staining,lung wet/dry weight ra-tio(W/D),total lung water content(TLW),and index of quantitative assessment(IQA)of lung injury were used to detect the degree of lung tissue injury in each group.Mitochondrial membrane potential was measured using extraction and JC-1 mitochondrial membrane potential detection kits.TUNEL assay was used to detect the level of apoptosis in lung tissues.Western blot was used to detect the protein expression levels of caspase-3,solute carrier family 39 member 8(SLC39A8/ZIP8),solute carrier family 30 member 9(SLC30A9/ZNT9),and PI3K/AKT/GSK-3β in lung tissues of each group.RT-qPCR was used to detect ZIP8 and ZNT9.RESULTS:Compared to the control group,the I/R group showed significantly aggravated lung tissue injury(P<0.01),decreased zinc ion levels(P<0.01),enhanced cell apoptosis(P<0.05),re-duced mitochondrial membrane potential(P<0.01),decreased PI3K/AKT/GSK-3β phosphorylation levels(P<0.05,P<0.01),increased cleaved caspase-3/pro-caspase-3 ratio(P<0.01),and reduced ZIP8 expression(P<0.05).Compared to the I/R group,the I-post-C group exhibited alleviated injury(P<0.05 or P<0.01),increased zinc ion levels(P<0.01),reduced apoptosis(P<0.01),restored mitochondrial membrane potential(P<0.01),elevated PI3K/AKT/GSK-3β phosphorylation levels(P<0.05,P<0.01),decreased cleaved caspase-3/pro-caspase-3 ratio(P<0.05),and in-creased ZIP8 expression(P<0.05).Compared to the I-post-C group,the I-post-C+TPEN group demonstrated aggravated injury(P<0.01),decreased zinc ion levels(P<0.01),enhanced apoptosis(P<0.01),reduced mitochondrial membrane potential(P<0.05),decreased PI3K/AKT/GSK-3β phosphorylation levels(P<0.05,P<0.01),increased cleaved cas-pase-3/pro-caspase-3 ratio(P<0.05),and reduced ZIP8 expression(P<0.05).ZNT9 expression showed no significant differences among the groups(P>0.05).CONCLUSION:Ischemic postconditioning can improve LIRI by regulating zinc homeostasis,activating PI3K/AKT signaling pathway,inactivating glycogen synthase kinase 3β,inhibiting the de-cline of mitochondrial membrane potential,and antagonizing cell apoptosis in rats.

AIM:To investigate the protective effect and mechanism of zinc ions on lung ischemia/reperfusion injury(LIRI)in rats.METHODS:SPF SD rats aged 6～8 weeks were divided randomly into 4 groups:control(control)group,ischemia/reperfusion(I/R)group,zinc chloride(ZnCl2)+I/R group,and PI3K inhibitor(LY294002)+ZnCl2+I/R group.Inductively coupled plasma mass spectrometry(ICP-MS)was used to measure the concentration of zinc ions in lung tissues,while the degree of lung tissue injury was assessed by HE staining,the alveolar damage index,and the lung wet/dry weight ratio.qPCR was used to detect the mRNA expression of solute carrier family 39 member 8(SLC39A8/ZIP8),with the TUNEL assay used to determine the level of apoptosis in lung tissue.The phosphorylation levels of caspase3,PI3K,AKT,GSK-3β,ZIP8,and solute carrier family 30 member 9(SLC30A9/ZNT9)were detected by Western blot,while the mitochondrial membrane potential was measured by the mitochondrial extraction kit and JC-1 mitochondrial mem-brane potential detection kit.RESULTS:Compared with the I/R group,the zinc ion level in the ZnCl2+I/R group in-creased(P<0.01),with the qPCR results showing that the expression level of ZIP8 also increased(P<0.01).The West-ern blot results demonstrated that the phosphorylation levels of PI3K/AKT/GSK-3β and cleaved caspase-3/pro were both in-creased(P<0.01 or P<0.05).In addition,the level of caspase-3 was decreased(P<0.01),the ZIP8 level was increased(P<0.05),whereas the level of ZNT9 was not significantly different(P>0.05).The mitochondrial membrane potential was increased(P<0.01)and the level of apoptosis was decreased(P<0.01).The results of HE staining,total lung water(TLW),lung index of quantitative assessment of histology(IQA),and lung tissue wet/dry weight ratio showed that the de-gree of injury was reduced significantly(P<0.05 or P<0.01).Compared with the ZnCl2+I/R group,the LY294002+Zn-Cl2+I/R group had a significant reduction in zinc ion levels(P<0.05),while qPCR showed a significant reduction in ZIP8 expression(P<0.01).Western blot showed that the phosphorylation level of PI3K/AKT/GSK-3β was decreased(P<0.01),the level of caspase-3/pro-caspase-3 was increased(P<0.01)the level of ZIP8 was decreased(P<0.05),al-though there was no significant difference in ZNT9(P>0.05).Measurements of the mitochondrial membrane potential demonstrated a significant decrease(P<0.01),while the TUNEL results showed that the level of apoptosis had increased(P<0.05).HE staining,TLW,IQA and lung tissue wet/dry weight ratio indicated that the degree of injury was aggravated significantly(P<0.05 or P<0.01).CONCLUSION:Administration of zinc chloride in rats has a protective role in lung ischemia/reperfusion injury by activating the PI3K/AKT pathway,leading to inactivation of GSK-3β,stabilization of the mitochondrial membrane potential level,and inhibition of cell apoptosis.

Objective:To analyze the clinicopathological characteristics of atypical teratoid/rhabdoid tumors (AT/RT) and the causes of pathological misdiagnosis, and summarize diagnostic strategies.Methods:A case series study was conducted.Specifically, the data of 5 misdiagnosed(misdiagnosed group) and 8 confirmed AT/RT cases(confirmed group) in the Department of Pathology of Xi′an Children′s Hospital from January 2010 to December 2018 were retrospectively analyzed.Hematoxylin-eosin and immunohistochemical staining were performed to analyze clinical features, morphology, and immune phenotypes.Rates were compared between the misdiagnosed and confirmed groups by a Fisher′s exact test.Means were compared using an independent sample t-test.Medians were compared by a Mann-Whitney U test. Results:(1)There were 4 males and 1 female in the misdiagnosed group, with a median age of 24 months.In this group, 4/5 tumors were located in the posterior cranial fossa, and 1/5 tumors were located in the spinal cord.Morphologically, rhabdoid cells were detected in 3/5 cases, and the other 2/5 cases consisted of small embryonal cells.Immunohistochemically, INI1 and BRG1 expressions were absent in 4/5 and 1/5 cases, respectively.All of them showed multiple immunephenotypes.There were 7 males and 1 female in the confirmed group, with a median age of 22 months.In the confirmed group, 4/8 tumors were located in the supratentorial region and 4/8 tumors were located in the infratentorial region.Rhabdoid cells, deficient INI1 expression and multiple immunephenotypes were observed in all 8 cases.(2)The percentage of rhabdoid cells in the misdiagnosed group was significantly lower[0.45(0, 0.46)] than that in the confirmed group[0.55(0.40, 0.85)]( Z=-2.064, P=0.039). Conclusions:The causes of misdiagnosis of AT/RT are variable sites of occurrence, diverse histomorphology, multiple phenotypes in immunohistochemistry and rare BRG1 deficiency.For high-grade rhabdoid, epithelioid, and/or embryonic small cell tumors, AT/RT should be differentiated and immunohistochemistry protocols should include INI1 and BRG1.