1.Surgical treatment of hepatic alveolar echinococcosis: challenges and innovations
Pei ZHANG ; Lu ZHAO ; Yunfei FANG ; Hui YANG ; Yifan WANG ; Yanqiong MA ; Yu MENG
Organ Transplantation 2026;17(3):512-518
Hepatic alveolar echinococcosis is a highly invasive zoonotic parasitic disease with poor prognosis. Surgical intervention serves as the pivotal approach to achieve radical cure and improve the prognosis of hepatic alveolar echinococcosis patients. In recent years, with the popularization of the concept of precision surgery and the development of the multidisciplinary diagnosis and treatment model, the surgical treatment strategies for hepatic alveolar echinococcosis have been continuously enriched, and the selection of surgical procedures has become increasingly diversified. Although key surgical techniques such as radical hepatectomy, autologous liver transplantation and allogeneic liver transplantation have achieved remarkable progress in clinical application, many insurmountable challenges still remain. Therefore, by sorting out the latest evidence-based advances in the field of surgical treatment for hepatic alveolar echinococcosis, this article focuses on discussing the application status and bottlenecks of radical hepatectomy, autologous liver transplantation and allogeneic liver transplantation in hepatic alveolar echinococcosis, aiming to provide a reference for the clinical treatment of hepatic alveolar echinococcosis.
2.Mechanism study of SIRT3 alleviating oxidative-stress injury in renal tubular cells by promoting mitochondrial biogenesis via regulating mitochondrial redox balance
Yaojun LIU ; Jun ZHOU ; Jing LIU ; Yunfei SHAN ; Huhai ZHANG ; Pan XIE ; Liying ZOU ; Lingyu RAN ; Huanping LONG ; Lunli XIANG ; Hong HUANG ; Hongwen ZHAO
Organ Transplantation 2026;17(1):86-94
Objective To elucidate the molecular mechanism of sirtuin-3 (SIRT3) in regulating mitochondrial biogenesis in human renal tubular epithelial cells. Methods Cells were stimulated with different concentrations of H2O2 and divided into four groups: control (NC), 50 μmol/L H2O2, 110 μmol/L H2O2 and 150 μmol/L H2O2. SIRT3 protein expression was then measured. SIRT3 was knocked down with siRNA, and cells were further assigned to five groups: control (NC), negative-control siRNA (NCsi), SIRT3-siRNA (siSIRT3), NCsi+H2O2, and siSIRT3+H2O2. After 24 h, cellular adenosine triphosphate (ATP) and mitochondrial superoxide anion (O2•−) levels were determined, together with mitochondrial expression of SIRT3, peroxisome proliferator-activated receptor γ coactivator-1α (PGC-1α), nuclear respiratory factor 1 (NRF1), mitochondrial transcription factor A (TFAM), superoxide dismutase 2 (SOD2), acetylated-SOD2 and adenosine monophosphate activated protein kinase α1 (AMPKα1). Results The 110 and 150 μmol/L H2O2 decreased SIRT3 protein (both P<0.05). ATP and mitochondrial O2•− did not differ between NC and NCsi groups (both P>0.05). Compared to the NCsi group, the siSIRT3 group exhibited elevated O2•− level, decreased SIRT3 protein and increased expression levels of SOD2 and acetylated SOD2 protein (all P<0.05). Compared to the NCsi group, the NCsi+H2O2 group exhibited decreased cellular ATP levels, elevated mitochondrial O2•− levels, and reduced protein expression levels of SIRT3, SOD2, TFAM, AMPKα1, PGC-1α and NRF1 (all P<0.05). Compared with the siSIRT3 group, the siSIRT3+H2O2 group showed a decrease in cellular ATP levels, an increase in mitochondrial O2•− levels, a decrease in SIRT3, SOD2, TFAM, AMPKα1, PGC-1α and NRF1 protein expression levels and a decrease in acetylated SOD2 protein expression levels (all P<0.05). Compared with the NCsi+H2O2 group, the siSIRT3+H2O2 group showed a decrease in cellular ATP levels, an increase in mitochondrial O2•− levels, a decrease in SIRT3, AMPKα1, PGC-1α and NRF1, TFAM protein expression levels, and an increase in SOD2 and acetylated SOD2 protein expression levels (all P<0.05). Conclusions SIRT3 promotes mitochondrial biogenesis in tubular epithelial cells via the AMPK/PGC-1α/NRF1/TFAM axis, representing a key mechanism through which SIRT3 ameliorates oxidative stress-induced mitochondrial dysfunction.
3.COLEC12high tumor-associated macrophages orchestrate lenvatinib resistance and cancer stemness in hepatocellular carcinoma via paracrine NRG1-HER2/HER3 signaling
Jianxing ZHANG ; Liang QIAO ; Zongfeng WU ; Dinglan ZUO ; Shanshan HUANG ; Shaoru LIU ; Zhenkun HUANG ; Yi ZENG ; Yu LI ; Yichuan YUAN ; Chenwei WANG ; Wei HE ; Jiliang QIU ; Yunfei YUAN ; Yi NIU ; Binkui LI
Clinical and Molecular Hepatology 2026;32(2):772-786
Background/Aims:
Lenvatinib resistance remains a critical barrier in advanced hepatocellular carcinoma (HCC) therapy. However, the underlying mechanisms and strategies for reversing resistance remain incompletely understood.
Methods:
Integrated transcriptomics of lenvatinib-resistant patient tumors and an acquired-resistance murine model identified a novel macrophage subpopulation. Functional validation employed CRISPR-SAM screening, conditioned medium (CM) assays, subcutaneous/orthotopic xenografts, patient-derived organoids (PDOs), and patient-derived xenografts (PDXs). Mechanistic studies included ChIP-qPCR, co-immunoprecipitation, and pharmacologic targeting. Clinical relevance was assessed in a retrospective cohort.
Results:
Resistant HCC exhibited significant enrichment of a COLEC12high TAM subset , which correlated with poor survival and treatment response. These TAMs secreted neuregulin-1 (NRG1) , activating HER2/HER3-AKT signaling in tumor cells to drive cancer stemness and lenvatinib resistance. Mechanistically, in TAMs COLEC12 sequestered STAT1 in the cytoplasm, preventing its phosphorylation, and thereby derepressing STAT3-mediated NRG1 transcription. Depletion of NRG1 reversed the stemness phenotypes and resensitized tumors to lenvatinib both in vitro and in vivo. Clinically, high NRG1 expression predicted an inferior lenvatinib response and shorter survival. Crucially, the bispecific anti-HER2/HER3 antibody zenocutuzumab restored lenvatinib efficacy in PDOs, PDXs, and murine models.
Conclusions
Our work establishes the COLEC12high TAM/NRG1 axis as a master regulator of therapeutic resistance and identifies NRG1 as a predictive biomarker, providing a clinically actionable strategy to overcome lenvatinib resistance in HCC.
4.Ditantang Ameliorates MAFLD in Rats Through UDPG-S1P-SREBP Axis-mediated Glycogen Synthesis
Lu PAN ; Zhe ZHAND ; Nan SONG ; Dongyu MIN ; Jiaxin WANG ; Yuanguang DONG ; Yang HONG ; Meiling ZHANG ; Xiaofei SUN ; Jiaru WANG ; Yunfei GAO ; Yupeng PEI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(22):40-50
ObjectiveTo investigate the effects of Ditantang on metabolic dysfunction-associated fatty liver disease (MAFLD) in rats by focusing on the regulation of glycogen synthesis mediated by the uridine diphosphate glucose (UDPG)-site-1-protease (S1P)-sterol regulatory element-binding protein (SREBP) axis. MethodsMAFLD was modeled in SD rats by feeding a high-fat diet for 12 weeks. Rats were randomized into a control group, a model group, low-, medium-, and high-dose (2.68, 5.36, and 10.72 g·kg-1·d-1, respectively) Ditantang groups, and a positive control (Yishanfu, 0.18 g·kg-1·d-1) group. Starting from week 9 of modeling, each treatment group received corresponding drug interventions via gavage. After the experiment, the serum levels of total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol (HDL-C) were measured. The levels of TG, non-esterified fatty acids (NEFA), glycogen, glucose-6-phosphate (G6P), glucose-1-phosphate (G1P), and UDPG in the liver tissue samples were measured by biochemical assay kits. Liver pathological morphology and lipid/glycogen deposition were observed via hematoxylin-eosin (HE) staining, oil red O staining, and Periodic acid-Schiff (PAS) staining. Immunofluorescence assay was conducted to detect the expression and localization of phosphoglucomutase-1 (Pgm1) and UDP-glucose pyrophosphorylase 2 (Ugp2) in the rat liver. Real-time PCR and Western blot were employed to quantify mRNA and protein levels, respectively, of key glycogen synthesis enzymes (Pgm1 and Ugp2), key lipogenesis-related transcription factor SREBP and its target genes [acetyl-CoA carboxylase (ACC), fatty acid synthetase (FASN), and stearoyl-CoA desaturase (SCD1)], as well as S1P. ResultsCompared with the control group, the model group exhibited elevated levels of TC, TG, LDL-C in the serum and TG and NEFA in the liver, decreased serum HDL-C level (P<0.01), reduced hepatic levels of G1P, G6P, UDPG, and glycogen (P<0.01), appearance of fat vacuoles of varying sizes and abundant red lipid droplets, with prominent lipid deposition and reduced areas of deep glycogen staining in the liver tissue, upregulated mRNA and protein levels of SREBP1, S1P, ACC, FASN, and SCD1 (P<0.01), and downregulated mRNA and protein levels of Pgm1 and Ugp2 (P<0.01). Compared with the model group, all doses of Ditantang reduced the levels of TC and TG in the serum and TG and NEFA in the liver, while elevating the serum HDL-C level. Additionally, medium- and high-dose Ditantang reducted the LDL-C level (P<0.05). Ditantang at all doses increased the hepatic levels of G1P, G6P, UDPG, and glycogen, alleviated hepatic steatosis and lipid deposition, enhanced glycogen storage, downregulated the mRNA and protein levels of SREBP1, S1P, ACC, FASN, and SCD1 (P<0.05), while upregulating the expression of Pgm1 and Ugp2 (P<0.01). Immunofluorescence analysis revealed decreased fluorescence intensity of S1P and enhanced fluorescence intensity of Ugp2 (P<0.01). ConclusionDitantang can regulate glycogen synthesis through the UDPG-S1P-SREBP axis to prevent and treat MAFLD.
5.Epidemiological dynamics and spatiotemporal diffusion trend of brucellosis in China from 2010 to 2024
Yunfei ZHANG ; Xinlou LI ; Qiang XU ; Di MU ; Yue SHI ; Xi CHEN ; Haijian ZHOU ; Tian QIN ; Biao KAN ; Canjun ZHENG ; Liqun FANG
Chinese Journal of Preventive Medicine 2025;59(6):884-891
Objective:To investigate the epidemiological dynamics and spatiotemporal diffusion trend of brucellosis in China from 2010 to 2024.Methods:Data on reported human brucellosis cases in mainland China from January 1, 2010, to December 31, 2024, were collected via the"China Information System for Disease Control and Prevention", including detailed information on the date of onset, gender, age, occupation, and residential address of the cases. The Joinpoint regression and spatial interpolation techniques were used to investigate the spatiotemporal dynamics and population distribution characteristics of human brucellosis in pastoral/semi-pastoral areas and other regions, as well as urban and rural areas, and explore the epidemic trends of the disease.Results:From 2010 to 2024, pastoral/semi-pastoral regions reported 252 094 brucellosis cases, with a mean annual incidence rate of 36.57±7.28 per 100 000. In contrast, other regions cumulatively recorded 519 748 cases during the same period, demonstrating a significantly lower mean annual incidence rate of 2.54±0.74 per 100 000. The incidence rate of human brucellosis in pastoral/semi-pastoral regions exhibited a declining-rebounding-declining trend. Specifically, the incidence rate decreased significantly from 2010 to 2017 (APC=-7.20; P<0.001) and increased notably from 2017 to 2021 (APC=18.00; P=0.015) with a decline again from 2021 to 2024 (APC=-7.53; P=0.027). In other regions, the incidence rate showed a fluctuating upward trend. Specifically, the incidence rate increased significantly from 2010 to 2015 (APC=20.37; P<0.001) and decreased notably from 2015 to 2018 (APC=-21.78; P<0.001), followed by an increase again from 2018 to 2024, a significant upward trend in incidence rate from 2018 to 2021 (APC=26.73; P<0.001) and a non-significant decline from 2021 to 2024 (APC=-0.99; P=0.735), resulting in the maintenance of a relatively high incidence level. Rural areas demonstrated significantly higher brucellosis incidence rates than urban settings (all P<0.001). Brucellosis exhibited a diffusion trend from the northern epidemic areas of China to neighboring regions, along with sporadic diffusion in southern regions between 2010 and 2024. The age structure of patients in pastoral/semi-pastoral areas differed significantly from that in other regions. Specifically, in pastoral/semi-pastoral areas, the incidence rate was higher among the 35-49 age groups, while in other regions, the incidence rate was higher among those aged 55-64. Conclusion:There are notable disparities in the incidence of human brucellosis between pastoral/semi-pastoral areas and other regions in China. Human brucellosis exhibits a diffusion trend from the northern epidemic areas of China to neighboring regions, along with sporadic diffusion in southern regions.
6.Filiform-needle acupuncture for poststroke urinary incontinence:a meta-analysis
Kai SUN ; Chunyu FU ; Xirui ZHAO ; Minrui FU ; Yunfei HAN ; Ping ZHANG ; Fuqing ZHANG
Journal of Acupuncture and Tuina Science 2025;23(2):178-190
Objective:To evaluate the efficacy and safety of filiform-needle acupuncture(FA)in the treatment of poststroke urinary incontinence(PSUI).Methods:All published papers in PubMed,Excerpta Medica Database(EMBASE),Cochrane Library,Web of Science,China National Knowledge Infrastructure(CNKI),Chongqing VIP Database(VIP),Wanfang Data Knowledge Service Platform(Wanfang),and China Biology Medicine Disc(CBM)were retrieved by computer.The retrieval time was from each database's inception to December 9,2023.Meta-analysis and sensitivity analysis were performed using the Revman V5.4 software,and GARDE evaluation was performed using GRADEpro GDT.Dichotomous variables were analyzed by the relative risk(RR),and weighted mean difference(WMD)was used for continuous variables.Each effect size was expressed as a 95%confidence interval(CI).Results:A total of 14 studies were included,comprising a total of 1 259 patients.The findings of the meta-analysis showed that the improvements of the maximum bladder capacity[WMD=64.63,95%CI(41.73,87.53),P<0.00001],72 h urination frequency[WMD=-5.27,95%CI(-6.40,-4.13),P<0.00001],and 72 h urinary incontinence frequency[WMD=-1.62,95%CI(-2.60,-0.64),P=0.001]in PSUI patients by FA were superior compared to conventional therapy.FA plus rehabilitation therapy(RT)was superior to RT alone in improving the maximum bladder capacity[WMD=35.17,95%CI(28.31,42.03),P<0.00001],the International Consultation on Incontinence questionnaire short form(ICI-Q-SF)score[WMD=-2.66,95%CI(-3.28,-2.05),P<0.00001],and incontinence quality of life questionnaire(I-QOL)score[WMD=8.07,95%CI(3.28,12.32),P=0.0002].The incidence of adverse reactions in FA was higher than that in RT[RR=21.62,95%CI(4.04,115.71),P=0.0003],but the severity was mild and did not affect the integrity of the treatment.Conclusion:FA has better safety,and its improving effect on bladder urinary storage function and urinary incontinence symptoms in patients with PSUI is clear.Combined with RT,it can better improve the quality of life in the patients.However,more high-quality studies are still needed for further updates and verification.
7.Effect of AUD of carbapenems on hospital-associated infections caused by carbapenem-resistant gram-negative bacteria
Yunfei XIA ; Xiaodi ZHOU ; Biyang JIAO ; Shuai LIU ; Zhiru ZHANG ; Yanju ZHANG
Chinese Journal of Nosocomiology 2025;35(22):3442-3446
OBJECTIVE To understand the current status of antimicrobial agent usage intensity(AUD)of antibiot-ics,carbapenems(CB)and isolation rates of carbapenem-resistant gram-negative bacteria(CRGNB)and explore the effect of CB on hospital-associated CRGNB infections.METHODS A retrospective analysis was conducted on antimicrobial agent usage and clinical data of the patients who were hospitalized in Nantong University Affiliated Hospital from 2023 to 2024.The antimicrobial usage patterns,CB-AUD and isolation rates of CRGNB were sta-tistically analyzed.Additionally,the clinical data from 1933 confirmed hospital-acquired infection cases from 2023 to 2024 were retrospectively analyzed,and the patients were classified into two groups based on CRGNB resist-ance:the CRGNB-infected group with 376 cases and the non-CRGNB-infected group with 1557 cases.The risk factors for CRGNB infections were identified.RESULTS In the two years,the overall utilization rate of antimicro-bial drug and AUD fluctuated every six months(P<0.05).The overall define daily dose system(DDDs)and AUD of the three CBs(meropenem,imipenem/cilastatin and biapenem)increased every six months(P<0.05).The o-verall drug resistance rate of gram-negative bacilli to CB decreased every six months(P<0.05).The logistic re-gression analysis showed that the duration of use of CB and combined use of antibiotics were the risk factors for the CRGNB infections(with the OR values,1.445,2.479,1.958,respectively,all P<0.05).CONCLUSIONS The overall use of CB is on the rise.The use of CB,especially the duration of CB,increases the probability of CRGNB infection.Therefore,it is necessary for the hospital to strengthen the monitoring of CB-AUD and supervi-sion of CB.
8.Study on characteristics and drug resistance of neonatal sepsis caused by different pathogenic bacteria
Yunfei GAO ; Shuhua ZHAO ; Ruilai LIU ; Xufang LI ; Zitian WANG ; Yue ZHANG ; Hong SHA ; Jing HE ; Xiaoyu YANG ; Na WU
International Journal of Pediatrics 2025;52(3):211-216
Objective:To investigate the differences in clinical characteristics and antibiotic resistance of neonatal sepsis(NS)caused by different Gram-staining pathogens.Methods:A retrospective study was conducted on confirmed NS cases admitted to the Neonatal Ward of the Pediatric Department at The First Affiliated Hospital of Dali University,from June 1,2014,to May 31,2024.Patients were divided into Gram-positive and Gram-negative groups based on blood or cerebrospinal fluid(CSF)culture results.Clinical characteristics,pathogen distribution,and antibiotic resistance were compared between the two groups.Results:A total of 98 cases were included,with 81 in the Gram-positive group and 17 in the Gram-negative group.Multivariate logistic regression analysis revealed that NS cases with a high neutrophil percentage( OR=0.933,95% CI:0.899-0.969)or hemorrhagic symptoms/signs( OR=0.059,95% CI:0.008-0.458)were less likely to have Gram-positive pathogens detected in blood or CSF cultures( P<0.05).Common Gram-positive pathogens included Staphylococcus epidermidis with 35 strains(33.65%)and Staphylococcus hominis with 22 strains(21.15%).The predominant Gram-negative pathogen was Escherichia coli with 14 strains(13.46%).Gram-positive pathogens exhibited high resistance to oxacillin(91.30%),erythromycin(90.91%),and penicillin G(90.00%),but low resistance to tigecycline(0),linezolid(0),and vancomycin(0).Gram-negative pathogens showed high resistance to ampicillin(92.31%),cefazolin(90.00%),and ampicillin/sulbactam(75.00%),but low resistance to amikacin(6.25%),latamoxef(0),and ertapenem(0).The incidence of concurrent purulent meningitis was lower in the Gram-positive group than in the Gram-negative group(9.88% vs.47.06%, χ2=11.628, P<0.05),and there was significant difference. Conclusion:NS cases with high neutrophil percentages or hemorrhagic symptoms/signs are less likely to be caused by Gram-positive pathogens.Staphylococcus epidermidis and Staphylococcus hominis are common Gram-positive pathogens,while Escherichia coli is the predominant Gram-negative pathogen in NS.Both Gram-positive and Gram-negative pathogens exhibit resistance to specific antibiotics.NS caused by Gram-positive pathogens is less likely to be complicated by purulent meningitis compared to those caused by Gram-negative pathogens.
9.Characteristics of Serum Immunoglobulin in Cronkhite-Canada Syndrome:A Single Center Retrospective Study
Shuang LIU ; Chengzhu OU ; Muhan LI ; Qiushi XU ; Yunfei ZHI ; Xingfang ZHANG ; Hao TANG ; Tianming XU ; Gechong RUAN ; Ji LI
JOURNAL OF RARE DISEASES 2025;4(2):194-201
Objective To investigate the characteristics and clinical significance of serum immunoglob-ulins in patients with Cronkhite-Canada syndrome(CCS).Methods This retrospective study included CCS patients admitted to Peking Union Medical College Hospital from December 2009 to September 2024 who under-went serum immunoglobulin testing.Clinical manifestations and ancillary examination results were analyzed ret-rospectively.Results Fifty-two patients were included(male:36[69.2%],female:16[30.8%]),with median onset age of 60(54-64)years and median diagnostic delay of 5(3-12)months.Common manifesta-tions included diarrhea(86.5%),abdominal pain(40.4%),hematochezia(19.2%),weight loss(86.5%),nail malnutrition(100.0%),pigmentation(88.5%),hair loss(84.6%),and hypogeusia(69.2%).Serum IgG reduction occurred in 21 patients(50.0%),while total IgE elevation was observed in 20(71.4%).Elevated serum IgG4 levels were noted in 11 patients(23.4%),with no significant clinical differences between IgG4-elevated and normal groups.IgG4 levels showed no statistical difference between active(n=43)and remission(n=27)groups.The hair loss rate was significantly higher in the total IgE-ele-vated group than that in the normal total IgE group(P=0.0383).Conclusions CCS patients exhibit periph-eral blood immunoglobulin disorders,with elevated IgE levels correlating with hair loss.This suggests an im-mune-mediated mechanism may underlie hair loss in CCS.
10.Feasibility of applying auxiliary analysis software to chromosomal aberration analysis of radiation workers
Ping WANG ; Lin HAN ; Jie LI ; Shasha DU ; Yunfei ZHANG ; Xiaohao LI ; Siqi FANG ; Yu GAO ; Xianfei NIU ; Yumin LYU
Chinese Journal of Radiological Medicine and Protection 2025;45(8):750-756
Objective:To explore the feasibility of the new auxiliary analysis software in chromosomal aberration analysis of radiation workers during occupational health examinations.Methods:Health examination data of 2 469 radiation workers in Henan province were collected. Manual analysis of chromosomal aberrations in peripheral blood lymphocytes was conducted using the new auxiliary software and the Ikaros software. Then, the chromosomal aberrations detected using both software tools were compared.Results:The new auxiliary software yielded a lower chromosomal aberration rate among radiation workers compared with the Ikaros software [(0.314 ± 0.014)% vs. (0.391 ± 0.022)%, χ2 = 9.24, P = 0.002]. Notably, the new auxiliary software yielded a significantly lower rate of acentric fragments (ace) [(0.136 ± 0.009)% vs. (0.209 ± 0.020)%, χ2= 17.76, P < 0.001]. However, no statistically significant differences were observed between the result of the two software tools in the rates of dicentrics plus rings (dic + r) and translocations ( P > 0.05). According to the GBZ/T 248-2014 standard, the differences in abnormality rates of chromosomal aberrations between the two groups had no statistically significance ( P > 0.05), with both groups showing an abnormality rate of 0 for ace. Furthermore, the new auxiliary software could double the detection efficiency. Among pre-service radiation workers of various occupations, the differences in the chromosomal aberrations detected using the two software tools exhibited statistical significance ( χ2 = 10.26, P = 0.001). In contrast, the differences in the chromosomal aberrations among in-service and post-service radiation workers had no statistically different significance ( P>0.05). The Poisson regression analysis result demonstrated that the rate of chromosomal aberrations excluding ace was affected by age ( z = 2.73, P = 0.006), while gender, analysis method, service status, and occupation had no impact. Conclusions:The two software tools yielded largely consistent result in detecting chromosomal aberrations induced by exposure to ionizing radiation. Notably, the new auxiliary software can significantly improve detection efficiency, indicating the feasibility of applying it to chromosomal aberration analysis among radiation workers.

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