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World Journal of Stem Cells 2024年第2期16卷 70-88页

作者： Min Meng Wei-Wei Zhang Shuang-Feng Chen da-Rui Wang Chang-Hui Zhou Department of Central Laboratory Liaocheng People’s HospitalLiaocheng 252000Shandong ProvinceChina Department of Clinical Laboratory Liaocheng People’s HospitalLiaocheng 252000Shandong ProvinceChina

Pulmonary diseases across all ages threaten millions of people and have emerged as one of the major public health issues *** diverse disease con-ditions,the currently available approaches are focused on alleviating clinical symptoms and delaying disease progression but have not shown significant therapeutic effects in patients with lung *** umbilical cord-derived mesenchymal stem cells(UC-MSCs)isolated from the human UC have the capacity for self-renewal and multilineage ***,in recent years,these cells have been demonstrated to have unique advantages in the treatment of lung *** searched the Public Clinical Trial database and found 55 clinical trials involving UC-MSC therapy for pulmonary diseases,including coronavirus disease 2019,acute respiratory distress syndrome,bron-chopulmonary dysplasia,chronic obstructive pulmonary disease,and pulmonary *** this review,we summarize the characteristics of these registered clinical trials and relevant published results and explore in depth the challenges and opportunitiesfaced in clinical ***,the underlying mole-cular mechanisms involved in UC-MSC-based therapy for pulmonary diseases are also analyzed in *** brief,this comprehensive review and detailed analysis of these clinical trials can be expected to provide a scientific reference for future large-scale clinical application.

关键词： Pulmonary diseases Mesenchymal stem cells Human umbilical cord Cell therapy Clinical trials

ROR2 promotes invasion and chemoresistance of triple-negative breast cancer cells by activating PI3K/AKT/mTOR signaling

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Oncology Research 2024年第7期32卷 1209-1219页

作者： XIA da HAN GE JUNFENG SHI CHUNHUA ZHU GUOZHU WANG YUAN FANG JIN XU Department of Breast and Thyroid Nanjing First HospitalNanjing Medical UniversityNanjingChina Department of General Surgery The First Affiliated Hospital of Nanjing Medical UniversityNanjingChina Department of Oncology Nanjing First HospitalNanjing Medical UniversityNanjingChina Department of Pathology Nanjing First HospitalNanjing Medical UniversityNanjingChina

Objective:This study aimed to investigate the role of receptor tyrosine kinase-like orphan receptor 2(ROR2)in triple-negative breast cancer(TNBC).Methods:ROR2 expression in primary TNBC and metastatic TNBC tissues was analyzed by immunohistochemical staining and ***2 expression in TNBC cell lines was detected by PCR and Western blot *** migration,invasion and chemosensitivity of TNBC cells with overexpression or knockdown of ROR2 were ***:ROR2 expression was high in metastatic TNBC ***2 knockdown suppressed the migration,invasion and chemoresistance of TNBC ***2 overexpression in Mda-MB-435 cells promoted the migration,invasion,and ***,ROR2 knockdown in HC1599 and Mda-MB-435 adriamycin-resistant cells enhanced chemosensitivity to ***2 could activate PI3K/AKT/mTOR signaling in TNBC ***:ROR2 is upregulated and promotes metastatic phenotypes of TNBC by activating PI3K/AKT/mTOR signaling.

关键词： Receptor tyrosine kinase-like orphan receptor 2 Triplet-negative breast cancer Proliferation Apoptosis PI3K/AKT/mTOR signaling Metastasis

Establishing and clinically validating a machine learning model for predicting unplanned reoperation risk in colorectal cancer

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World Journal of Gastroenterology 2024年第23期30卷 2991-3004页

作者： Li-Qun Cai da-Qing Yang Rong-Jian Wang He Huang Yi-Xiong Shi Department of Colorectal and Anal Surgery Whenzhou Central HospitalWenzhou 325000Zhejiang ProvinceChina Department of Colorectal and Anorectal Surgery The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325000Zhejiang ProvinceChina

BACKGROUND Colorectal cancer significantly impacts global health,with unplanned reoperations post-surgery being key determinants of patient *** predictive models for these reoperations lack precision in integrating complex clinical *** To develop and validate a machine learning model for predicting unplanned reoperation risk in colorectal cancer *** data of patients treated for colorectal cancer(n=2044)at the First Affiliated Hospital of Wenzhou Medical University and Wenzhou Central Hospital from March 2020 to March 2022 were retrospectively *** were divided into an experimental group(n=60)and a control group(n=1984)according to unplanned reoperation *** were also divided into a training group and a validation group(7:3 ratio).We used three different machine learning methods to screen characteristic variables.A nomogram was created based on multifactor logistic regression,and the model performance was assessed using receiver operating characteristic curve,calibration curve,Hosmer-Lemeshow test,and decision curve *** risk scores of the two groups were calculated and compared to validate the *** More patients in the experimental group were≥60 years old,male,and had a history of hypertension,laparotomy,and hypoproteinemia,compared to the control *** logistic regression analysis confirmed the following as independent risk factors for unplanned reoperation(P<0.05):Prognostic Nutritional Index value,history of laparotomy,hypertension,or stroke,hypoproteinemia,age,tumor-node-metastasis staging,surgical time,gender,and American Society of Anesthesiologists *** operating characteristic curve analysis showed that the model had good discrimination and clinical *** This study used a machine learning approach to build a model that accurately predicts the risk of postoperative unplanned reoperation in patients with colorectal cancer,which can improve tr

关键词： Colorectal cancer Postoperative unplanned reoperation Unplanned reoperation Clinical validation Nomogram Machine learning models

Analysis of the Influence of Geometrical Parameters on the Performance of a Proton Exchange Membrane Fuel Cell

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Fluid Dynamics & Materials Processing 2024年第1期20卷 219-237页

作者： Guodong Zhang Huifang Tao da Li Kewei Chen Guoxiang Li Shuzhan Bai Ke Sun School of Energy and Power Engineering Shandong UniversityJinan250061China Sinotruk Jinan Special Purpose Vehicle Co. Ltd.Jinan250117China

A suitable channel structure can lead to efficient gas distribution and significantly improve the power density of fuel *** this study,the influence of two channel design parameters is investigated,namely,the ratio of the channel width to the bipolar plate ridge width(i.e.,the channel ridge ratio)and the channel *** impact of these parameters is evaluated with respect to the flow pattern,the gas composition distribution,the temperature field and the fuel cell output *** results show that a decrease in the channel ridge ratio and an increase in the channel depth can effectively make the distributions of velocity,temperature and concentration more uniform in each channel and improve the output capability of the fuel *** increase in the channel ridge ratio and depth obviously reduces the flow resistance and improves the flow characteristics.

关键词： Hydrogen fuel cell bipolar plate flow channel multiphysics coupling

Structural changes in the obese brain

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Neural Regeneration Research 2024年第12期19卷 2561-2562页

作者： Anna R.R.da Conceicao Marcelo N.N.Vieira Fernanda G.De Felice D’Or Institute for Research and Education Rio de JaneiroBrazil Institute of Medical Biochemistry Leopoldo De Meis Federal University of Rio de JaneiroRio de JaneiroBrazil Centre for Neuroscience Studies Department of Biomedical and Molecular Sciences&Department of PsychiatryQueen’s UniversityKingstonONCanada

Obesity represents a major global health concern,with widespread growing prevalence and severe consequences for the quality of life and life expectancy of affected individuals and for the economic burden of healthcare systems(Prospective Studies Collaboration,2009).Obesity is a well-established risk factor for a variety of conditions including metabolic,vascula r,and heart diseases,and seve ral types of cancer(Prospective Studies Collaboration,2009).

关键词： diseases consequences prevalence

Removal of a guide-wire sliding into abdominal cavity via transgastric natural orifice transluminal endoscopic surgery: A case report

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World Journal of Clinical Cases 2024年第3期12卷 596-600页

作者： Shi-Ju Chen da-Ya Zhang Yan-Ting Lv Fei-Hu Bai Graduate School Hainan Medical UniversityHaikou 571199Hainan ProvinceChina Department of Gastroenterology The Second Affiliated Hospital of Hainan Medical University570216 HaikouHainan ProvinceChina Department of Gastroenterology Clinical Medical Center of Hainan ProvinceHaikou 570216Hainan ProvinceChina

BACKGROUND Guidewire slippage into the peritoneal cavity during clinical operations is extremely ***,this paper aims to report a successful case of guidewire removal using transgastric natural orifice transluminal endoscopic surgery(NOTES).The goal is to enhance physicians'understanding of the management plan for this unique scenario and provide a valuable reference for clinical *** SUMMARY A 64-year-old man presented with abdominal distension and was diagnosed with cirrhosis combined with massive *** proceed with treatment,the patient underwent ultrasound-guided peritoneal puncture and underwent catheterization and ***,a 0.035-inch guidewire slipped into the abdominal cavity during the *** a comprehensive evaluation and consultation by a multidisciplinary team,the guidewire was successfully removed using *** This case highlights the potential consideration of transgastric NOTES removal when encountering a foreign body,such as a guidewire,within the abdominal cavity.

关键词： Guidewire Abdominal cavity Natural orifice transluminal endoscopic surgery Cirrhosis Massive ascites Case report

Microstructure development of Ti scaffold by laser powder bed fusion with chemical polishing and its mechanical properties,biocompatibility

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Biosurface and Biotribology 2024年第2期10卷 52-62页

作者： Changfu Lu Jing Chen Teng Ma Yuxin Chen da Zeng Yiliang Gan Youwen Yang Double Medical Technology Inc. XiamenChina Institute of Additive Manufacturing Jiangxi University of Science and TechnologyNanchangChina Key Laboratory of Construction Hydraulic Robots of Anhui Higher Education Institutes Tongling UniversityTonglingChina College of Engineering and Applied Science Nanjing UniversityNanjingChina

Titanium(Ti)dental scaffolds are widely used in dental prosthetics due to their excellent mechanical properties and ***,conventional Ti scaffolds manufactured through machining often do not fit perfectly with the bone defect *** powder bed fusion(LPBF)technology enables the personalised manufacturing of custom-made Ti scaffolds.A custom-made Ti scaffold was prepared using LPBF and its surface roughness was improved through chemical *** enhance the surface roughness,a nitric acid mixed solution with a specific composition of HF:HNO_(3):C_(3)H_(6)O_(3)=2:2:3 was *** polishing mechanism was investigated by adjusting the F/Ti ratio to control the formation and dissolution of the oxide *** a result,the surface of the Ti scaffold after polishing exhibited a smooth and flat appearance compared to the LPBF part,with a reduced surface roughness(Ra)of 1.23±0.19μ*** custom-made Ti scaffold also demonstrated favourable mechanical properties,with a bending strength of 335.18±33.62 MPa and stiffness of 2.13±0.21 ***,in vitro cell tests confirmed the excellent biocompatibility of the custom-made Ti *** authors present a feasible strategy for the further clinical application of custom-made Ti scaffolds,offering enhanced surface properties and a.dressing the limitations of conventional machining methods.

关键词： additive manufacturing dental material property surface roughness

N-glycosylation of Wnt3 regulates the progression of hepatocellular carcinoma by affecting Wnt/β-catenin signal pathway

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World Journal of Gastrointestinal Oncology 2024年第6期16卷 2769-2780页

作者： Xin-Zhan Zhang Xiao-Chuan Mo Zhu-Ting Wang Rong Sun da-Quan Sun Department of Biochemistry and Molecular Biology&Research Center for Basic Medical Sciences Guizhou Medical UniversityGuiyang 550025Guizhou ProvinceChina

BACKGROUND Wnt/FZD-mediated signaling pathways are activated in more than 90%of hepatocellular carcinoma(HCC)cell *** a well-known secretory glycoprotein,Wnt3 can interact with FZD receptors on the cell surface,thereby activating the Wnt/β-catenin signaling ***,the N-glycosylation modification site of Wnt3 and the effect of this modification on the biological function of the protein are still *** To investigate the effect of Wnt3 N-glycosylation on the biological function of HCC *** Site-directed mutagenesis was used to verify the Wnt3 N-glycosylation sites,actinomycin D treatment was used to detect the stability of Wnt3 after site-directed mutation,the binding of the N-glycosylation site-directed mutant Wnt3 to FZD7 was observed by laser confocal microscopy,and the effects of the N-glycosylation site-directed mutation of Wnt3 on the Wnt/β-catenin signaling pathway and the progression of HCC cells were detected by western blot and cell function *** Wnt3 has two N-glycosylation-modified sites(Asn90 and Asn301);when a single site at amino acid 301 is mutated,the stability of Wnt3 is weakened;the binding ability of Wnt3 to FZD7 decreases when both sites are mutated simultaneously;and the level of proteins related to the Wnt/β-catenin signaling pathway is *** proliferation,migration and invasion are also weakened in the case of single 301 site and double-site *** These results indicate that by inhibiting the N-glycosylation of Wnt3,the proliferation,migration,invasion and colony formation abilities of liver cancer cells can be weakened,which might provide new therapeutic strategies for clinical liver cancer in the future.

关键词： Wnt3 N-glycosylation Hepatocellular carcinoma Liver cancer Wnt/β-catenin FZD7

Combining systemic inflammatory response index and albumin fibrinogen ratio to predict early serious complications and prognosis after resectable gastric cancer

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World Journal of Gastrointestinal Oncology 2024年第3期16卷 732-749页

作者： Jing-Yao Ren da Wang Li-Hui Zhu Shuo Liu Miao Yu Hui Cai School of Clinical Medicine Ningxia Medical UniversityYinchuan 750000Ningxia Hui Autonomous RegionChina General Surgery Clinical Medical Center Gansu Provincial HospitalLanzhou 730000Gansu ProvinceChina Key Laboratory of Molecular Diagnostics and Precision Medicine for Surgical Oncology in Gansu Province Gansu Provincial HospitalLanzhou 730000Gansu ProvinceChina NHC Key Laboratory of Diagnosis and Therapy of Gastrointestinal Tumor Gansu Provincial HospitalLanzhou 730000Gansu ProvinceChina Medical College of Jiangsu University Jiangsu UniversityZhenjiang 212013Jiangsu ProvinceChina The First Clinical Medical School Lanzhou UniversityLanzhou 730000Gansu ProvinceChina

BACKGROUND Gastric cancer has a high incidence and fatality rate,and surgery is the preferred course of ***,patient survival rates are still low,and the incidence of major postoperative complications cannot be *** systemic inflammatory response,nutritional level,and coagulation status are key factors affecting the postoperative recovery and prognosis of gastric cancer *** systemic inflammatory response index(SIRI)and the albumin fibrinogen ratio(AFR)are two valuable comprehensive indicators of the severity and prognosis of systemic inflammation in various medical *** To assess the clinical importance and prognostic significance of the SIRI scores and the AFR on early postoperative outcomes in patients undergoing radical gastric cancer *** We conducted a retrospective analysis of the clinicopathological characteristics and relevant laboratory indices of 568 gastric cancer patients from January 2018 to December *** calculated and compared two indicators of inflammation and then examined the diagnostic ability of combined SIRI and AFR values for serious early postoperative *** scored the patients and categorized them into three groups based on their SIRI and AFR *** analysis was used to compare the three groups of patients the prognostic value of various preoperative SIRI-AFR scores for 5-year overall survival(OS)and disease-free survival(DFS).RESULTS SIRI-AFR scores were an independent risk factor for prognosis[OS:P=0.004;hazards ratio(HR)=3.134;DFS:P<0.001;HR=3.543]and had the highest diagnostic power(area under the curve:0.779;95%confidence interval:0.737-0.820)for early serious complications in patients with gastric *** tumor-node-metastasis stage(P=0.001),perioperative transfusion(P=0.044),positive carcinoembryonic antigen(P=0.014)findings,and major postoperative complications(P=0.011)were factors associated with *** Preoperative SIRI and AFR values were s

关键词： Inflammation Albumin fibrinogen ratio Gastric cancer Complications Prognosis

Associations between remnant cholesterol levels and mortality in patients with diabetes

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World Journal of Diabetes 2024年第4期15卷 712-723页

作者： Deng Pan Lin Xu Li-Xiao Zhang da-Zhuo Shi Ming Guo Department of Cardiovascular Xiyuan Hospital of China Academy of Chinese Medical SciencesBeijing 100091China Graduate School Beijing University of Chinese MedicineBeijing 100020China National Clinical Research Center for Chinese Medicine Cardiology Xiyuan Hospital of China Academy of Chinese Medical SciencesBeijing 100091China Gynecological Department of Traditional Chinese Medicine China-Japan Friendship HospitalBeijing 100020China

BACKGROUND Dyslipidemia is frequently present in patients with *** associations of remnant cholesterol and mortality remains unclear in patients with *** To explore the associations of remnant cholesterol with all-cause and cardiovas-cular mortality in patients with *** This prospective cohort study included 4740 patients with diabetes who par-ticipated in the National Health and Nutrition Examination Survey from 1999 through *** cholesterol was used as the exposure variable,and all-cause and cardiovascular mortality were considered outcome *** data were obtained from the National Death Index,and all participants were followed from the interview date until death or December 31,*** proportional Cox regression models were used to explore the associations between exposure and outcomes,in which remnant cholesterol was modeled as both a categorical and a continuous *** cubic splines(RCSs)were calculated to assess the nonlinearity of ***(stratified by sex,age,body mass index,and duration of diabetes)and a series of sensitivity analyses were performed to evaluate the robustness of the *** During a median follow-up duration of 83 months,1370 all-cause deaths and 389 cardiovascular deaths were *** with remnant cholesterol levels in the third quartile had a reduced risk of all-cause mortality[hazard ratio(HR)95%confidence interval(CI):0.66(0.52-0.85)];however,when remnant cholesterol was modeled as a continuous variable,it was associated with increased risks of all-cause[HR(95%CI):1.12(1.02-1.21)per SD]and cardiovascular[HR(95%CI):1.16(1.01-1.32),per SD]*** RCS demonstrated nonlinear associations of remnant cholesterol with all-cause and cardiovascular *** and sensitivity analyses did not reveal significant differences from the above *** In patients with diabetes,higher remnant cholesterol was associated wi

关键词： Diabetes Remnant cholesterol Mortality Cardiovascular National Health and Nutrition Examination Survey