Objective To compare the clinical outcomes of patients with coronary in-stent restenosis(ISR)who underwent drug-coated balloon(DCB)treatment,based on different clinical presentations.Methods This prospective study included 508 patients diagnosed with coronary ISR at Anzhen Hospital,Capital Medical University,between May 2020 and May 2022.All patients received DCB treatment.According to clinical presentation,the patients were divided into an acute coronary syndrome(ACS)group(185 patients)and a non-acute coronary syndrome(non-ACS)group(323 patients).All patients were followed for two years,primarily comparing the incidence of myocardial infarction(MI),target lesion revascularization(TLR),death,and major adverse cardiovascular events(MACE)between the two groups.Results Baseline data showed that the ACS group had a significantly higher proportion of hypertension,diabetes,and smoking compared to the non-ACS group(all P＜0.05).Additionally,the ACS group had a higher proportion of B2/C-type lesions,long lesions,and moderate to severe calcified lesions(all P＜0.05).The number,length,and diameter of stents implanted were also significantly larger in the ACS group(all P＞0.05).At the 1-year follow-up,the ACS group had a significantly higher incidence of TLR(8.1％vs.2.5％,P=0.007)and MACE(10.3％vs.5.3％,P=0.047)than the non-ACS group.By the end of the 2-year follow-up,the ACS group still had higher rates of TLR(18.9％vs.10.2％,P=0.007)and MACE(22.7％vs.14.9％,P=0.030).Conclusions ISR patients with ACS have higher cardiovascular risk and more complex lesions.They also experience a higher incidence of adverse events after DCB treatment.

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 analyze the efficacy of the combination therapy of pembrolizumab,a programmed death receptor-1(PD-1)inhibitor,and chemotherapy in the treatment of cervical cancer.Methods:A total of 60 patients with cervical cancer who visited our hospital from January 2020 to January 2023 were selected and divided into two groups:30 patients were treated with first-line chemotherapy,and 30 patients were treated with pembrolizumab combined with first-line chemotherapy.Compare the recent efficacy of two groups,including immune related indicators[CD4+/CD8+ratio,interleukin-6(IL-6),interferon-γ(IFN-γ)],serum tumor markers[Squamous Cell Carcinoma Antigen(SCC Ag),Carbohydrate Antigen 125(CA125)],incidence of adverse reactions,and survival status[Progression Free Survival(PFS),Overall Survival(OS)]before and after treatment.Results:The objective response rate(ORR)of the combination group was 73.33％,while that of the chemotherapy group was 40.00％.The combination group was higher than the chemotherapy group(P＜0.05);There was no significant difference in the levels of CD4+/CD8+,IL-6,and IFN-γ between the two groups before treatment(P＞0.05).After treatment,the levels of CD4+/CD8+,IL-6,and IFN-γ decreased in the combination group,which was lower than those in the chemotherapy group(P＜0.05);There was no significant difference in the levels of SCC Ag and CA125 between the two groups before treatment(P＞0.05).After treatment,the levels of SCC Ag and CA125 in both groups decreased,with the combination group lower than the chemotherapy group(P＜0.05);There was no significant difference in the incidence of hematological toxicity(anemia,thrombocytopenia),immune related toxicity(hypothyroidism,immune pneumonia,elevated transaminase),skin/mucosal reactions(rash,oral mucosal inflammation),and other adverse reactions(diarrhea,fatigue)between the two groups(P＞0.05).The incidence of grade 3 or above neutropenia was higher in the chemotherapy group than in the combination group(P＜0.05);The PFS and OS time of the combined group were higher than those of the chemotherapy group(P＜0.05).Conclusion:The combination therapy of PD-1 inhibitor pembrolizumab and chemotherapy is significantly effective in treating cervical cancer,which can improve the immune environment,reduce serum marker levels,and has high safety.At the same time,through long-term follow-up,it was found that the combination therapy can further improve patients'long-term progression free survival and overall survival.

Previous studies have shown that the diversity and composition of intestinal microbiota are related to the effect of tumor immunotherapy,but the mechanism of intestinal microbiota affecting tumor immunotherapy resistance has rarely been sum-marized.This article not only expounds the current clinical sta-tus of tumor immunotherapy resistance,but also summarizes the correlation and regulatory mechanism between the composition and homeostasis of intestinal microbiota and drug resistance to different types of tumor immunotherapy,so as to provide a refer-ence for the study of potential targets for improving tumor immu-notherapy resistance based on intestinal microbiota.

Objective To investigate the mechanism of action of circ-0058063 regulating ERK/MAPK signaling pathway on ferroptosis in esophageal cancer cells.Methods EC9706 cells were randomly divided into the Control group,the si-NC group,the si-circ-0058063 group,and the si-circ-0058063+ISO group.qRT-PCR was used to detect the expression of circ-0058063 in esophageal cancer tissues and cells;CCK-8 and clone formation assay were used to detect the cell proliferation ability.The levels of Fe2+,malondialdehyde(MDA),glutathione(GSH),and reactive oxygen species(ROS)in cells were detected.Western blot was used to detect the ERK/MAPK signaling pathway and the expression of ferroptosis-related protein in cells.Results The expression level of circ-0058063 in esophageal cancer tissue was significantly higher than that in adjacent tissues(P<0.05);the expression level of circ-0058063 in human esophageal cancer cell EC9706 was significantly higher than that in human normal esophageal epithelial cell HEEC(P<0.05).Compared with the Control group,the expression level of circ-0058063 in cells,cell survival rate,number of cloned cells,GSH level,ratios of p-ERK1/2/ERK1/2 and p-p38MAPK/p38MAPK,as well as the expression levels of SLC7A11 and GPX4 protein in the si-circ-0058063 group were significantly reduced(P<0.05),while the levels of Fe2+,MDA,and ROS in cells were significantly increased(P<0.05).Compared with the si-circ-0058063 group,the expression level of circ-0058063 in cells,cell survival rate,number of cloned cells,GSH level,ratios of p-ERK1/2/ERK1/2 and p-p38MAPK/p38MAPK,as well as the expression levels of SLC7A11 and GPX4 protein in the si-circ-0058063+ISO group were significantly increased(P<0.05),while the levels of Fe2+,MDA,and ROS in cells were significantly decreased(P<0.05).Conclusion Knockdown of circ-0058063 can inhibit the proliferation of esophageal cancer cells and induce ferroptosis,and its mechanism of action may be related to the inhibition of ERK/MAPK signaling pathway activation.

The working principle of Bausch&Lomb BL11110 phacoemulsification system was described.Three cases of typical faults of the phacoemulsification system were introduced,and the causes were analyzed,then the maintenance measures were given accordingly.References were provided for diagnosing and eliminating the faults of the phacoemulsification system.[Chinese Medical Equipment Journal,2025,46(4):118-120]

Objective To explore the relationship between triglyceride-glucose(TyG)index and hypertension in patients with cerebral hemorrhage.Methods A total of 1718 patients with cere-bral hemorrhage admitted to our hospital from January,2013 to May,2023 were enrolled in this study.According to the TyG index quartile,437 cases were assigned into Q1 group(≤8.375),424 cases into Q2 group(TyG index 8.376～8.737),429 cases into Q3 group(TyG index 8.738～9.087),and 428 cases into Q4 group(≥9.088).The general clinical data were compared in the four groups.Logistic regression analysis was used to study the correlation between TyG index and hy-pertension.Results There were significant differences among the four groups in terms of age,hy-pertension,diabetes,SBP,DBP,TC,TG,HDL-C,LDL-C,FBG,glycated hemoglobin and TyG in-dex(P＜0.05,P＜0.01).Logistic regression analysis showed that when the TyG index was a con-tinuous variable,it was significantly correlated with the risk of hypertension(OR=1.999,95％CI:1.393-2.869,P=0.001).When the index was used as a categorical variable,with Q1as a ref-erence,TyG index in Q3 and Q4 was associated with an increase in OR of hypertension(OR=1.869,95％CI:1.220-2.865,P=0.004;OR=1.844,95％CI:1.125-3.020,P=0.015).After ad-justing cofounders,the association of TyG index and risk of hypertension was stronger in the fe-males(OR=2.618,95％CI:1.312-5.221,P=0.006)than the males(OR=1.783,95％CI:1.151-2.761,P=0.010),and in the patients ≥65 years old(OR=3.277,95％CI:1.600-6.741,P=0.001)than those＜65 years old(OR=1.782,95％CI:1.076-2.949,P=0.025).Conclusion TyG index is closely associated with hypertension in patients with cerebral hemorrhage,especially in women and elderly.

AIM To investigate the protective effects of Shuangyi Qushi Tongluo Capsules(Shuangyi Capsules)on Dexamethasone(Dex)induced osteoporosis in mice.METHODS The C57BL/6J mice were randomly divided into the control group,the model group,the Xianling Gubao Capsules group(1.5 g/kg),and the low-dose,moderate-dose,and high-dose Shuangyi Capsules groups(0.6,1.2,and 2.4 g/kg).The mouse model of osteoporosis was induced by 8-week intraperitoneal injection of Dex sodium phosphate injection(5 mg/kg).The mice had their femur osteogenesis observed with hematoxylin and eosin(HE)staining and tartrate-resistant acid phosphatase(TRAP)staining;their serum alkaline phosphatase(ALP)and osteocalcin(BGP)activities detected by ELISA;their femoral mRNA expressions of Col-Ⅰ,OCN,and OPN detected by RT-qPCR;and their femoral protein expressions of OPG and RANKL detected by Western blot.Upon the MC3T3-E1 cells exposed to Dex and Shuangyi Capsules,their viability was evaluated by CCK-8 assay;their mineralization determined by alkaline phosphatase staining and alizarin red staining(ARS);and their intracellular ROS level detected using DCFH-DA probe.RESULTS Compared with the model group,Shuangyi Capsules groups demonstrated improved fracture of femoral trabeculae and reduced number of osteoclasts;increased serum ALP and BGP activities(P＜0.05,P＜0.01);increased femoral expressions of Col-Ⅰ mRNA and OPG protein(P＜0.05,P＜0.01);and decreased RANKL protein expression(P＜0.05).Compared with the MC3T3-E1 cells stimulated by Dex,those underwent further treatment of Shuangyi Capsules demonstrated increased cell viability and ALP activity(P＜0.05,P＜0.01);increased mineralization and calcium nodule formation;increased expressions of Col-Ⅰ,OCN,OPN mRNA and OPG protein(P＜0.05,P＜0.01);decreased RANKL protein expression(P＜0.05,P＜0.01);and reduced ROS levels.CONCLUSION Shuangyi Capsules ameliorate Dex-induced osteoporosis in mice by suppressing osteoclast overactivation,enhancing osteoblast activity,and stimulating bone formation through modulation of Col-Ⅰ,OCN,OPN mRNA and OPG/RANKL protein levels.

BACKGROUND:Developmental dysplasia of hip causes groin pain in patients with prolonged activity or standing due to the presence of deformities of the acetabulum and femoral head in terms of structure,size and orientation,and if not effectively treated,patients' normal activities will be severely limited.OBJECTIVE:Finite element model of the hip joint of solid-liquid biphase fiber reinforced cartilage based on FEBio was established to explore the biomechanical properties of the cartilage for patients with developmental dysplasia of hip and the normal hip joint.METHODS:A patient with developmental dysplasia of hip and a normal volunteer were chosen to build their left hip models including left pelvis,left femur,and cartilage attached thereto. The solid-liquid biphase fiber reinforced cartilage of normal hip was verified to be effective. The cartilage equal contact stress,fluid pressure,solid effective stress,and fluid support rate differences between the developmental dysplasia of hip patients hip and the normal one in the case of one leg of static load (2130 N) were compared after establishing finite element models of developmental dysplasia of hip patients.RESULTS AND CONCLUSION:(1) Compared with the finite element results of the normal hip model,the cartilage contact position of developmental hip dysplasia patient hip showed obvious edge contact,the peak contact stress (3.86 Mpa) and peak fluid pressure (3.76 Mpa) were both higher than normal hip model. (2) After 1500 s (stable load-bearing capacity),peak contact stress and peak fluid pressure in both models decreased,but the cartilage contact position of developmental hip dysplasia patient hip moved from the edge of cartilage to the center,and fluid support rate decreased from 97.41％ to 91.08％. The fluid support rate in normal hip was decreased by 0.58％ from 95.24％ to 94.66％. (3) It is indicated that under the physiological load of standing on one leg,the cartilage of developmental dysplasia of hip patients showed obvious edge load,and the decrease of peak contact stress,fluid pressure,and fluid formation rate was greater than that of normal cartilage. Considering the solid-liquid biphasic fiber reinforcement characteristics of cartilage,it is of great clinical significance to evaluate the biomechanical properties of hip cartilage in developmental dysplasia of hip patients,to understand the pathophysiological mechanism of developmental dysplasia of hip,and make preoperative plan.

Conventional X-ray coronary angiography using iodinated contrast media is the gold standard technique for diagnosing coronary artery disease and determining treatment strategies,including percutaneous coronary intervention(PCI).However,severe allergy to iodinated contrast agents and renal insufficiency,as well as severely hyperthyroid patients,limit the use of iodinated contrast agents,especially in the face of acute coronary syndromes requiring emergency PCI.Gadolinium-based contrast agent is mainly developed for use in magnetic resonance imaging examinations,and there are few studies on whether it can be used for coronary angiography.We report a case of a patient who had a severe allergic reaction to an iodine contrast agent,and ultimately had a successful complex coronary intervention guided by the application of Gadolinium-based contrast agent combined with intravascular ultrasound.This case and a review of the relevant literature provide new ideas for coronary artery examination and treatment in patients with contraindications to iodine.