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Leukocyte immunoglobulin-like receptor B2:A promising biomarker for colorectal cancer

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World Journal of Gastroenterology 2024年第4期30卷 421-423页

作者： Wen-Zhuo Zhao hong-Gang Wang xiao-Zhong yang Department of Gastroenterology The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical UniversityHuai'an 223300Jiangsu ProvinceChina

According to the latest global cancer statistics,colorectal cancer(CRC)has emerged as the third most prevalent malignant tumor across the globe.In recent decades,the medical field has implemented several levels of CRC screening tests,encompassing fecal tests,endoscopic examinations,radiological examinations and blood tests.Previous studies have shown that leukocyte immunoglobulin-like receptor B2(LILRB2)is involved in inhibiting immune cell function,immune evasion,and promoting tumor progression in acute myeloid leukemia and nonsmall cell lung cancer.However,its interaction with CRC has not been reported yet.Recently,a study published in the World Journal of Gastroenterology revealed that LILRB2 and its ligand,angiopoietin-like protein 2,are markedly overexpressed in CRC.This overexpression is closely linked to tumor progression and is indicative of a poor prognosis.The study highlights the potential of utilizing the concentration of LILRB2 in serum as a promising biomarker for tumors.However,there is still room for discussion regarding the data processing and analysis in this research.

关键词： Colorectal cancer Leukocyte immunoglobulin-like receptor B2 Angiopoietinlike protein 2 Therapeutic target Noninvasive screening biomarker

GPa-level pressure-induced enhanced corrosion resistance in TiZrTaNbSn biomedical high-entropy alloy

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China Foundry 2024年第3期21卷 265-275页

作者： xiao-hong Wang Yu-lei Deng Qiao-yu Li Zhi-xin Xu Teng-fei Ma Xing yang Duo Dong Dong-dong Zhu xiao-hong yang Key Laboratory of Air-driven Equipment Technology of Zhejiang Province Quzhou UniversityQuzhou 324000ZhejiangChina School of Materials Science and Engineering Taizhou UniversityTaizhou 318000ZhejiangChina

TiZrTaNb-based high-entropy alloys(HEAs)are research frontier of biomedical materials due to their high hardness,good yield strength,excellent wear resistance and corrosion resistance.Sn,as an essential trace element in the human body that plays a significant role in physiological process.It has stable chemical properties and a low elastic modulus.In this study,a new material,TiZrTaNbSn HEAs,was proposed as a potential biomedical alloy.The Ti_(35)Zr_(25)Ta_(15)Nb_(15)Sn_(10)biomedical high-entropy alloys(BHEAs)were successfully prepared through an arc melting furnace and then remelted using a German high-temperature and high-pressure apparatus under GPa-level(4 GPa and 7 GPa).The precipitation behavior of the needle-like HCP-Zr_(5)Sn_(3)phase that precipitates discontinuously at the grain boundary was successfully controlled.The phase constitution,microstructure,and corrosion resistance of the alloy were studied.The results show that the needle-like HCP-Zr_(5)Sn_(3)phase is eliminated and the(Zr,Sn)-rich nano-precipitated phase is precipitated in the microstructure under high pressure,which leads to the narrowing of grain boundaries and consequently improves the corrosion resistance of the alloy.In addition,the formation mechanisms of(Zr,Sn)-rich nanoprecipitates in BHEAs were discussed.More Zr and Sn dissolve in the matrix due to the effect of high pressure,during the cooling process,they precipitate to form a(Zr,Sn)-rich nano-precipitated phase.

关键词： biomedical HEAs precipitation grain boundary corrosion resistance TiZrTaNbSn

NUMERICAL SIMULATION OF A HORIZONTAL MOMENTUM JET IN CROSS-FLOW

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Journal of Hydrodynamics 2006年第1期18卷 118-125页

作者： xiao yang TANG hong-wu College of Water Conservancy and Hydropower Engineering Hohai University Nanjing 210098 China

The mixing characteristics of a Horizontal Momentum Jet in Cross flow （HMJC） were investigated using the CFD code Fluent. The realizable k-ε model was employed for turbulent closure of the Reynolds-averaged Navier-Stokes equations. The computed results, including concentration field and velocity field, agree well with the relations of dimen sional analysis, as well as the experimental results by Sherif and Pletcher, Ali and Yu et al.

关键词： horizontal momentum jet cross-flow realizable k-ε model LIF PIV

Time evolutions of scalar field perturbation in Schwarzschild de-Sitter black hole from Einstein-scalar–Gauss–Bonnet theory

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Communications in Theoretical Physics 2024年第1期76卷 76-81页

作者： Cheng Xu Zhen-Hao yang xiao-Mei Kuang Rui-hong Yue Center for Gravitation and Cosmology College of Physical Science and TechnologyYangzhou UniversityYangzhou225009China

The scalar-free black hole could be unstable against the scalar field perturbation when it is coupled to a Gauss–Bonnet(GB)invariant in a special form.It is known that the tachyonic instability in this scenario is triggered by the sufficiently strong GB coupling.In this paper,we focus on the time domain analysis of massive scalar field perturbation around the Schwarzschild de-Sitter black hole in Einstein-scalar–Gauss–Bonnet gravity.By analyzing the scalar field propagation,we find that the scalar field will finally grow when the GB coupling is large enough.This could lead to the instability of the background black hole.Furthermore,we demonstrate how the mass of the scalar field and the GB coupling strength affect the onset of tachyonic instability.

关键词： black hole perturbation scalar-Einstein-Gauss-Bonnet gravity time domain evolution me

Current understanding of ELF4 deficiency:a novel inborn error of immunity

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World Journal of Pediatrics 2024年第5期20卷 444-450页

作者： hong-Qiang Du xiao-Dong Zhao Department of Rheumatology&Immunology National Clinical Research Center for Child Health and DisordersMinistry of Education Key Laboratory of Child Development and DisordersChongqing Key Laboratory of Child Rare Diseases in Infection and ImmunityChildren’s Hospital of Chongqing Medical UniversityZhongshan Er Road 136Yuzhong DistrictChongqingChina

Background ELF4 deficiency has been recently recognized as a novel disorder within the spectrum of inborn errors of immunity(IEIs),specifically categorized as a“disease of immune dysregulation.”Cases of this condition,reported by our team and others,are very limited worldwide.As such,our current knowledge of this new disease remains preliminary.This review aims to provide a brief overview of the clinical manifestations,pathogenesis,and treatment strategies for this novel IEI.Data sources A comprehensive review was conducted after an extensive literature search in the PubMed/Medline database and websites concerning transcriptional factor ELF4 and reports concerning patients with ELF4 deficiency.Our search strategy was“ELF4 OR ETS-related transcription factor Elf-4 OR EL4-like factor 4 OR myeloid Elf-1-like factor”as of the time of manuscript submission.Results The current signature manifestations of ELF4 deficiency disorder are recurrent and prolonged oral ulcer,abdominal pain,and diarrhea in pediatric males.In some cases,immunodeficiency and autoimmunity can also be prominent.Targeted Sanger sequencing or whole exome sequencing can be used to detect variation in ELF4 gene.Western blotting for ELF4 expression of the patient’s cells can confirm the pathogenic effect of the variant.To fully confirm the pathogenicity of the variant,further functional test is strongly advised.Glucocorticoid and biologics are the mainstream management of ELF4 deficiency disorder.Conclusions Pediatric males presenting with recurring ulcerations in digestive tract epithelium with or without recurrent fever should be suspected of DEX.When atypical presentations are prominent,variations in ELF4 gene should be carefully evaluated functionally due to the complex nature of ELF4 function.Experience of treating DEX includes use of glucocorticoid and biologics and more precise treatment needs more patients to identify and further mechanistic study.

关键词： ELF4 transcription factor Immune dysregulation Inborn errors of immunity Mechanism Recurrent infections

Primary anaplastic lymphoma kinase-positive large B-cell lymphoma of the left bulbar conjunctiva: A case report

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World Journal of Clinical Cases 2024年第3期12卷 657-664页

作者： xiao-hong Guo Chu-Bin Li Hui-Hui Cao Gen-Yuan yang Department of Pathology Zhuhai People's Hospital(Zhuhai Hospital Affiliated with Jinan University)Zhuhai 519000Guangdong ProvinceChina Endoscopy Center Zhuhai People's Hospital(Zhuhai Hospital Affiliated with Jinan University)Zhuhai 519000Guangdong ProvinceChina

BACKGROUND Anaplastic lymphoma kinase(ALK)-positive large B-cell lymphoma(LBCL)is an aggressive and rare variant of diffuse LBCL.Herein,we report an uncommon case of stage IE extranodal ALK-positive LBCL initially originating in the bulbar con-junctiva.CASE SUMMARY A 63-year-old woman presented with a mass in the left bulbar conjunctiva that had persisted for six months,accompanied by swelling and pain that had per-sisted for 3 d.Eye examination revealed an 8 mm slightly elevated pink mass in the lower conjunctival sac of the left eye.Microscopically,the tumor was com-posed of large immunoblastic and plasmablastic large lymphoid cells with scattered anaplastic or multinucleated large cells.Immunophenotypically,the neoplastic cells were positive for ALK,CD10,CD138,Kappa,MUM1,BOB.1,OCT-2,CD4,CD45,EMA,CD79a,CD38,and AE1/AE3,and negative for CD20,PAX5,Lambda,BCL6,CD30 and all other T-cell antigens.The results of gene rearrangement tests showed monoclonal IGH/IGK/IGL and TCRD rearran-gements.Fluorescence in situ hybridization studies did not reveal any BCL2,BCL6 or MYC rearrangements.Furthermore,Epstein-Barr virus was not detected by in situ hybridization in the lesions.Based on the histopathological and imaging examinations,the neoplasm was classified as stage IE ALK-positive LBCL.No further treatments were administered.At the 6,15,and 21 mo postoperative follow-up visits,the patient was in good condition,without obvious discomfort.This case represents the first example of primary extranodal ALK-positive LBCL presenting as a bulbar conjunctival mass,which is extremely rare and shares morphological and immunohistochemical features with a variety of other neo-plasms that can result in misdiagnosis.CONCLUSION Awareness of the condition presented in this case report is necessary for early and accurate diagnosis and appropriate treatment.

关键词： Anaplastic lymphoma kinase Large B-cell lymphoma Conjunctiva Immunoglobulin/T-cell receptor gene Immunohistochemistry Case report

Research progress and challenges in stem cell therapy for diabetic foot: Bibliometric analysis and perspectives

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World Journal of Stem Cells 2024年第1期16卷 33-53页

作者： hong-Shuo Shi Xin Yuan Fang-Fang Wu xiao-Yu Li Wei-Jing Fan xiao yang xiao-Ming Hu Guo-Bin Liu Department of Peripheral Vascular Surgery Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai 250021China

BACKGROUND Stem cell therapy has shown great potential for treating diabetic foot(DF).AIM To conduct a bibliometric analysis of studies on the use of stem cell therapy for DF over the past two decades,with the aim of depicting the current global research landscape,identifying the most influential research hotspots,and providing insights for future research directions.METHODS We searched the Web of Science Core Collection database for all relevant studies on the use of stem cell therapy in DF.Bibliometric analysis was carried out using CiteSpace,VOSviewer,and R(4.3.1)to identify the most notable studies.RESULTS A search was conducted to identify publications related to the use of stem cells for DF treatment.A total of 542 articles published from 2000 to 2023 were identified.The United States had published the most papers on this subject.In this field,Iran’s Shahid Beheshti University Medical Sciences demonstrated the highest productivity.Furthermore,Dr.Bayat from the same university has been an outstanding researcher in this field.Stem Cell Research&Therapy is the journal with the highest number of publications in this field.The main keywords were“diabetic foot ulcers,”“wound healing,”and“angiogenesis.”CONCLUSION This study systematically illustrated the advances in the use of stem cell therapy to treat DF over the past 23 years.Current research findings suggested that the hotspots in this field include stem cell dressings,exosomes,wound healing,and adipose-derived stem cells.Future research should also focus on the clinical translation of stem cell therapies for DF.

关键词： Stem cells Diabetic foot Bibliometric CiteSpace VOSviewer R-bibliometrix

Perioperative extracorporeal membrane oxygenation in pediatric congenital heart disease:Chinese expert consensus

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World Journal of Pediatrics 2023年第1期19卷 7-19页

作者： Ru Lin Wei Wang Xu Wang Zhuo-Ming Xu Jin-Ping Liu Cheng-Bin Zhou xiao-yang hong Xu-Ming Mo Shan-Shan Shi Li-Fen Ye Qiang Shu Department of Extracorporeal Life Support Heart InstituteNational Clinical Research Center for Child HealthChildren's HospitalZhejiang University School of MedicineHangzhouChina Department of Thoracic and Cardiovascular Surgery Shanghai Children's Medical CenterShanghai Jiao Tong University School of MedicineShanghaiChina Department of Pediatric Intensive Care Unit National Center for Cardiovascular Disease and Fuwai HospitalChinese Academy of Medical SciencesPeking Union Medical CollegeBeijingChina Department of Cardiopulmonary Bypass National Center for Cardiovascular Disease and Fuwai HospitalChinese Academy of Medical SciencesPeking Union Medical CollegeBeijingChina Department of Cardiovascular Surgery Guangdong Provincial Cardiovascular InstituteGuangdong Provincial People's HospitalGuangdong Academy of Medical SciencesGuangzhouChina Pediatric Intensive Care Unit Faculty of PediatricsChinese PLA General HospitalBeijingChina Department of Cardiothoracic Children's Hospital of Nanjing Medical UniversityNanjingChina Department of CICU Heart InstituteNational Clinical Research Center for Child HealthChildren's HospitalZhejiang University School of MedicineHangzhouChina Department of Cardiac Surgery National Clinical Research Center for Child HealthChildren's HospitalZhejiang University School of MedicineBinsheng Road 3333Hangzhou 310052China

Background Congenital heart disease(CHD)is one of the main supportive diseases of extracorporeal membrane oxygena-tion in children.The management of extracorporeal membrane oxygenation(ECMO)for pediatric CHD faces more severe challenges due to the complex anatomical structure of the heart,special pathophysiology,perioperative complications and various concomitant malformations.The survival rate of ECMO for CHD was significantly lower than other classifica-tions of diseases according to the Extracorporeal Life Support Organization database.This expert consensus aims to improve the survival rate and reduce the morbidity of this patient population by standardizing the clinical strategy.Methods The editing group of this consensus gathered 11 well-known experts in pediatric cardiac surgery and ECMO field in China to develop clinical recommendations formulated on the basis of existing evidences and expert opinions.Results The primary concern of ECMO management in the perioperative period of CHD are patient selection,cannulation strategy,pump flow/ventilator parameters/vasoactive drug dosage setting,anticoagulation management,residual lesion screening,fluid and wound management and weaning or transition strategy.Prevention and treatment of complications of bleeding,thromboembolism and brain injury are emphatically discussed here.Special conditions of ECMO management related to the cardiovascular anatomy,haemodynamics and the surgical procedures of common complex CHD should be considered.Conclusions The consensus could provide a reference for patient selection,management and risk identification of periop-erative ECMO in children with CHD.

关键词： Circulatory support Congenital heart disease Extracorporeal membrane oxygenation Pediatric Respiratory support

Ultrasound blood flow characteristics changes in fetal umbilical artery thrombosis:A retrospective analysis

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World Journal of Clinical Cases 2024年第2期12卷 240-248页

作者： Si-Jie hong Li-Wei hong xiao-Qin He xiao-hong Zhong Department of Ultrasound Women and Children's HospitalSchool of MedicineXiamen UniversityXiamen 361000Fujian ProvinceChina Ministry of Science and Education Women and Children's HospitalSchool of MedicineXiamen UniversityXiamen 361000Fujian ProvinceChina

BACKGROUND Umbilical artery thrombosis(UAT)is extremely uncommon and leads to adverse perinatal outcomes.Hypercoagulation of blood in pregnant women is suspected to be an important risk for UAT.Ultrasound is an effective way to detect thrombosis.The mother can monitor her own fetal health using ultrasound,which enables her to take preventative action in case of emergency.AIM To investigate ultrasonic blood signal after UAT in the umbilical artery,and evaluate the relationship between hypercoagulability and UAT.METHODS We described a case of a newly formed UAT with markedly altered ultrasonic indices of umbilical artery blood flow,and retrospectively studied it with 18 UAT patients confirmed by histopathology from October 2019 and March 2023 in Xiamen Women and Children's Hospital.Patients’information was collected from medical archives,including maternal clinical data,neonatal outcomes,pathological findings and ultrasonic indices of umbilical artery blood flow,such as systolic-diastolic duration ratio(S/D),resistance index(RI),pulsatility index(PI)and peak systolic velocity(PSV).Ultrasound and coagulation indices were analyzed with matched samples t-test and Wilcoxon rank sum test using the statistical packages in R(version 4.2.1)including car(version 3.1-0)and stats(version 4.2.1),and visualized by ggplot2 package(version 3.3.6).RESULTS A patient with normal findings in second and third-trimester routine ultrasound scan developed UAT with severe changes in ultrasonic indices of umbilical artery blood flow(within 2.5th of reference ranges)in a short period of time.Statistical analysis of umbilical artery blood flow ultrasound indices for 19 patients with UAT showed that the decrease in S/D,RI,and PI and increase of PSV during the disease process was greater than that of non-UAT.All 18 patients delivered in our hospital showed characteristic manifestations of UAT on histological examination after delivery,most of which(16/18)showed umbilical cord abnormalities,with 15 umbilical cord torsion and 1 pseudoknot.Coagul

关键词： Umbilical artery thrombosis Obstetric ultrasonography Peak systolic velocity Hypercoagulation Umbilical cord abnormalities Fetus