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Facile electrochemical surface-alloying and etching of Au wires to enable high-performance substrates for surface enhanced Raman scattering

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Nano Materials Science 2024年第3期6卷 305-311页

作者： Yawen Zhan Guobin Zhang Junda Shen Binbin Zhou Chenghao Zhao Junmei Guo Ming Wen Zhilong Tan Lirong Zheng Jian Lu Yang Yang Li center of Super-Diamond and Advanced Films(COSDAF) City University of Hong Kong83 Tat Chee AvenueKowloonHong KongChina department of Materials Science and Engineering City University of Hong Kong83 Tat Chee AvenueKowloonHong KongChina Kunming Institute of Precious Metals Sino-platinum Metals Co.Ltd.KunmingYunan ProvinceChina Centre for Advanced structural Materials City University of Hong Kong Shenzhen Research Institute8 Yuexing 1st RoadShenzhen Hi-Tech Industrial ParkNanshan DistrictShenzhenChina Shenzhen Key Laboratory on Power Battery Safety Research and Shenzhen Geim Graphene center Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen518055China Institute of High Energy Physics Beijing100049China

Surface-enhanced Raman Spectroscopy(SERS)is a nondestructive technique for rapid detection of analytes even at the single-molecule ***,highly sensitive and reliable SERS substrates are mostly fabricated with complex nanofabrication techniques,greatly restricting their practical applications.A convenient electrochemical method for transforming the surface of commercial gold wires/foils into silver-alloyed nanostructures is demonstrated in this *** substrates are treated with repetitive anodic and cathodic bias in an electrolyte of thiourea,in a one-pot one-step manner.X-rays absorption fine structure(XAFS)spectroscopy confirms that the AuAg alloy is induced at the *** unique AuAg alloyed surface nanostructures are particularly advantageous when served as SERS substrates,enabling a remarkably sensitive detection of Rhodamine B(a detection limit of 10^(-14)M,and uniform strong response throughout the substrates at 10^(-12)M).

关键词： Electrodeposition Dealloying Surface-alloyed Noble metals Surface enhanced Raman spectroscopy substrates

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Metabolites and micronutrition in modulating amyotrophic lateral sclerosis

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Neural Regeneration Research 2024年第6期19卷 1183-1184页

作者： Katerina Claud Jun Sun department of Medicine University of Illinois Chicago Jesse Brown VA Medical center Chicago

Amyotrophic lateral sclerosis(ALS) is a progressive neurodegenerative disease. The majority of ALS cases are sporadic with only about 20% of familial forms. Even in families with genetic predisposition, there is significant phenotypic variability, suggesting that ALS onset may be triggered by a combination of genetic factors, environmental factors(e.g., military service,

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Global, regional, and national burden of early-onset gastric cancer

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Cancer Biology & Medicine 2024年第8期21卷 667-678页

作者： Nuopei Tan Hongliang Wu Maomao Cao Fan Yang Xinxin Yan Siyi He Mengdi Cao Shaoli Zhang Yi Teng Qianru Li Jiachen Wang Changfa Xia Wanqing Chen department of Cancer Screening National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical College department of Anesthesiology National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital Chinese Academy of Medical Sciences and Peking Union Medical College

Objective: The burden of gastric cancer(GC) across different age groups needs updating. We determined the GC global, regional, and national burden profiles and changes in incidence for 3 sequential 5-year intervals from 2003 to ***: The latest incidence and mortality estimates of GC from 185 countries and regions were extracted from the GLOBOCAN 2022 database. The 5-year interval age-standardised incidence rates(ASIRs) were evaluated using cancer registry data from volumes X±XII of the Cancer Incidence in Five Continents(CI5). Correlation analysis was used to evaluate the relationship between ASIR or the age-standardised mortality rate(ASMR) and the Human Development Index(HDI).Results: There was an estimated global 968,000 new GC cases and 660,000 deaths in 2022, with male predominance. GC ASIRs and ASMRs were 9.2 and 6.1 per 100,000 persons, respectively. East Asia had the highest burden, with 53.8% of cases and 48.2% of deaths among all geographic regions. There was a significant correlation between ASIR and HDI. Over three 5-year intervals from 2003 to 2017, the incidence of GC notably decreased in most countries but peaked at 2008±2012 in New Zealand, Turkey, and South Africa. Several countries in Europe, Oceania, and America suggest an increasingly concerning trend among younger individuals, especially ***: GC is a significant health issue, especially among males and in geographic regions with an HDI, such as eastern Asia. While the incidence of GC is decreasing in many countries due to prevention efforts and improved treatments, a rising trend persists among younger individuals. Comprehensive prevention strategies tailored to different age patterns are clearly needed.

关键词： GLOBOCAN Gastric cancer cancer burden incidence mortality

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Hepatocellular carcinoma presenting as an extrahepatic mass:A case report and review of literature

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World Journal of Gastrointestinal Oncology 2024年第5期16卷 2241-2252页

作者： Wei Kelly Wu Krutika Patel Chandrasekhar Padmanabhan Kamran Idrees department of Surgery Vanderbilt University Medical CenterNashvilleTN 37232United States department of Pathology Microbiology and ImmunologyVanderbilt University Medical CenterNashvilleTN 37232United States Division of Surgical Oncology and Endocrine Surgery Department of SurgeryVanderbilt University Medical CenterNashvilleTN 37232United States

BACKGROUND Hepatocellular carcinoma(HCC)is a primary liver tumor generally diagnosed based on radiographic *** disease is typically associated with increased tumor diameter,multifocality,and vascular *** report a case of a patient who presented with extrahepatic HCC metastasis to a portocaval lymph node with occult hepatic primary on computed tomography(CT).We review the literature for cases of extrahepatic HCC presentation without known hepatic lesions and discuss strategies to differentiate between metastatic and ectopic *** SUMMARY A 67-year-old male with remotely treated hepatis C was referred for evaluation of an enlarging portocaval,mixed cystic-solid *** CT evaluations demonstrated steatosis,but no cirrhosis or liver *** ultrasound demonstrated a normal-appearing pancreas,biliary tree,and *** needle aspiration yielded atypical *** differential diagnosis included duodenal or pancreatic cyst,lymphoproliferative cyst,stromal or mesenchymal lesions,nodal involvement from gastrointestinal or hematologic malignancy,or duodenal gastrointestinal stromal *** review by a multidisciplinary tumor board,the patient underwent open surgical resection of a 5.2 cm×5.5 cm retroperitoneal mass with pathology consistent with moderately-differentiated *** resonance imaging(MRI)subsequently demonstrated a 1.2 cm segment VIII hepatic lesion with late arterial enhancement,fatty sparing,and intrinsic T1 *** fetoprotein was 23.3 ng/*** patient was diagnosed with HCC with portocaval nodal ***:We surveyed the literature for HCC presenting as extrahepatic masses without history of concurrent or prior intrahepatic *** identified 18 cases of extrahepatic HCC ultimately found to represent metastatic lesions,and 30 cases of extrahepatic HCC found to be primary,ectopic *** Hepatocellular carcinoma can seldomly present with extrahepatic metastasis in the setting of

关键词： Extrahepatic Metastasis Portocaval Lymph node Case report

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New strategies in the diagnosis and treatment of immune-checkpoint inhibitor-mediated colitis

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World Journal of Clinical Cases 2024年第6期12卷 1050-1062页

作者： Tsvetelina Velikova Boris Krastev Milena Gulinac Miroslav Zashev Vasko Graklanov Milena Peruhova Medical Faculty Sofia University St.Kliment OhridskiSofia 1407Bulgaria Medical center Nadezhda Medical Center NadezhdaSofia 1407Bulgaria General and Clinical Pathology Medical University of PlovdivPlovdiv 4002Bulgaria department of General Surgery University Hospital“Heart and Brain”Burgas 8000Bulgaria First department of Internal Diseases Medical University of PlovdivPlovdiv 4000Bulgaria department of Hematology University Hospital“St.George”Plovdiv 4000Bulgaria Division of Gastroenterology University Hospital“Heart and Brain”Burgas 1000Bulgaria

Immune-checkpoint inhibitor-mediated colitis(IMC)is an increasingly recognized adverse event in cancer immunotherapy,particularly associated with immune checkpoint inhibitors(ICIs)such as anti-cytotoxic T-lymphocyte antigen-4 and anti-programmed cell death protein-1 *** this revolutionary immunotherapy gains prominence in cancer treatment,understanding,diagnosing,and effectively managing IMC becomes *** represents a unique challenge due to its immune-mediated nature and potential for severe ***,a precise picture of IMC pathophysiology is currently ***,we aimed to summarize the existing data while acknowledging the need for further *** comprehensive review explores the mechanisms underlying ICIs,gastrointestinal adverse effects,and,in particular,IMC’s incidence,prevalence,and *** review also emphasizes the importance of recognizing IMC’s distinct clinical and histopathological features to differentiate it from other forms of ***,this paper highlights the urgentneed for evolving diagnostic methods,therapeutic strategies,and a multidisciplinary approach to effectively manage IMC.

关键词： Immune-checkpoint inhibitors Immune-checkpoint inhibitor-mediated colitis Inhibitor-mediated colitis management Immunotherapy-associated colitis Checkpoint inhibitor-induced colitis Gastrointestinal adverse effects Checkpoint inhibitor toxicity Inhibitor-mediated colitis therapy

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SARS-CoV2 Nsp3 protein triggers cell death and exacerbates amyloid β42-mediated neurodegeneration

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Neural Regeneration Research 2024年第6期19卷 1385-1392页

作者： Aditi Singh Anuradha Venkatakrishnan Chimata Prajakta Deshpande Soumya Bajpai Anjali Sangeeth Mrigendra Rajput Amit Singh department of Biology University of Dayton Premedical Program University of Dayton center for Tissue Regeneration and Engineering at Dayton (TREND) University of Dayton The Integrative Science and Engineering center University of Dayton center for Genomic Advocacy (TCGA) Indiana State University

Infection caused by the severe acute respiratory syndrome coronavirus 2(SARS-CoV2) virus, responsible for the coronavirus disease 2019(COVID-19) pandemic, induces symptoms including increased inflammatory response, severe acute respiratory syndrome(SARS), cognitive dysfunction like brain fog, and cardiovascular defects. Long-term effects of SARS-CoV2 COVID-19 syndrome referred to as post-COVID-19 syndrome on age-related progressive neurodegenerative disorders such as Alzheimer’s disease remain understudied. Using the targeted misexpression of individual SARS-CoV2 proteins in the retinal neurons of the Drosophila melanogaster eye, we found that misexpression of nonstructural protein 3(Nsp3), a papain-like protease, ablates the eye and generates dark necrotic spots. Targeted misexpression of Nsp3 in the eye triggers reactive oxygen species production and leads to apoptosis as shown by cell death reporters, terminal deoxynucleotidyl transferase(TdT) dUTP Nick-end labeling(TUNEL) assay, and dihydroethidium staining. Furthermore, Nsp3 misexpression activates both apoptosis and autophagy mechanism(s) to regulate tissue homeostasis. Transient expression of SARS-CoV2 Nsp3 in murine neuroblastoma, Neuro-2a cells, significantly reduced the metabolic activity of these cells and triggers cell death. Misexpression of SARS-CoV2 Nsp3 in an Alzheimer’s disease transgenic fly eye model(glass multiple repeats [GMR]>amyloid β42) further enhances the neurodegenerative rough eye phenotype due to increased cell death. These findings suggest that SARS-CoV2 utilizes Nsp3 protein to potentiate cell death response in a neurodegenerative disease background that has high pre-existing levels of neuroinflammation and cell death.

关键词： Alzheimer's disease apoptosis autophagy COVID-19 Drosophila necrosis Neuro-2a cells neurodegeneration post COVID-19 syndrome SARS-CoV2

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SGLT2 inhibitor monotherapy alleviates hyperglycemia in heredity severe insulin resistance syndrome

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Chinese Medical Journal 2024年第11期137卷 1372-1374页

作者： Huixuan Wu Junaid Iqbal Long Li Hongli Jiang Chen Chao Meibiao Zhang Ou Li Houde Zhou department of Metabolism and Endocrinology National Clinical Research Center for Metabolic DiseasesHunan Provincial Key Laboratory for Metabolic Bone DiseasesKey Laboratory of Diabetes ImmunologyMinistry of EducationThe Second Xiangya Hospital of Central South UniversityChangshaHunan 410011China department of Endocrinology and Metabolism The First People’s Hospital of HuaihuaHuaihuaHunan 418000China department of Metabolism and Endocrinology San-Sui County Traditional Chinese Medicine HospitalQiandongnan Miao and Dong Autonomous PrefectureGuizhou 556000China

To the Editor:Hereditary severe insulin resistance syndrome(H-SIRS)shows a wide and variable clinical spectrum and results in severe complications in the endocrinological and cardiovascular *** treatments are recommended to control hyperglycemia in H-SIRS,including dietary intervention,insulin therapy,insulin sensitization,and recombinant human insulin-like growth factor-1(rhIGF-1)administration.[1]However,the heterogeneous etiology of H-SIRS leads to poor glycemic control in patients with different mutations,requiring multiple antihyperglycemic *** study described two cases diagnosed with H-SIRS and the treatment effect of multi-drug therapy and sodium-glucose cotransporter 2 inhibitor(SGLT2i)monotherapy.

关键词： SIRS cardiovascular clinical

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Bromocriptine protects perilesional spinal cord neurons from lipotoxicity after spinal cord injury

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Neural Regeneration Research 2024年第5期19卷 1142-1149页

作者： Ying Peng Zhuoxuan Li Zhiyang Zhang Yinglun Chen Renyuan Wang Nixi Xu Yuanwu Cao Chang Jiang Zixian Chen Haodong Lin Trauma center Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghaiChina department of Orthopedics Zhongshan HospitalFudan UniversityShanghaiChina department of Rehabilitation Medicine Shanghai Geriatric Medical CenterShanghaiChina

Recent studies have revealed that lipid droplets accumulate in neurons after brain injury and evoke lipotoxicity,damaging the ***,how lipids are metabolized by spinal cord neurons after spinal cord injury remains ***,we investigated lipid metabolism by spinal cord neurons after spinal cord injury and identified lipid-lowering compounds to treat spinal cord *** found that lipid droplets accumulated in perilesional spinal cord neurons after spinal cord injury in *** droplet accumulation could be induced by myelin debris in HT22 *** debris degradation by phospholipase led to massive free fatty acid production,which increased lipid droplet synthesis,β-oxidation,and oxidative *** oxidative phosphorylation increased reactive oxygen species generation,which led to increased lipid peroxidation and HT22 cell *** was identified as a lipid-lowering compound that inhibited phosphorylation of cytosolic phospholipase A2 by reducing the phosphorylation of extracellular signal-regulated kinases 1/2 in the mitogen-activated protein kinase pathway,thereby inhibiting myelin debris degradation by cytosolic phospholipase A2 and alleviating lipid droplet accumulation in myelin debris-treated HT22 *** function,lipid droplet accumulation in spinal cord neurons and neuronal survival were all improved in bromocriptine-treated mice after spinal cord *** results suggest that bromocriptine can protect neurons from lipotoxic damage after spinal cord injury via the extracellular signal-regulated kinases 1/2-cytosolic phospholipase A2 pathway.

关键词： bromocriptine central nervous system cytosolic phospholipase A2 high-content screening lipid droplet lipid metabolism lipotoxicity mitogen-activated protein kinase spinal cord injury spinal cord neurons

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Gp78 regulates PMP22 and causes ER stress and autophagy in EV71-VP1-overexpressing mouse Schwann cells

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BIOCELL 2024年第4期48卷 653-664页

作者： DANPING ZHU GUANGMING LIU KUAN FENG SUYUN LI DANDAN HU SIDA YANG PEIQING LI Pediatric Emergency department Guangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangdong Provincial Clinical Research Center for Child HealthGuangzhouChina department of Child Health Care Guangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangdong Provincial Clinical Research Center for Child HealthGuangzhouChina Pediatric Neurology department Guangzhou Women and Children’s Medical CenterGuangzhou Medical UniversityGuangdong Provincial Clinical Research Center for Child HealthGuangzhouChina

Background:During Enterovirus type 71(EV71)infection,the structural viral protein 1(VP1)activates endoplasmic reticulum(ER)stress associated with peripheral myelin protein 22(PMP22)accumulation and induces ***,the speciﬁc mechanism behind this process remains ***:In this research,we used the VP1-overexpressing mouse Schwann cells(SCs)models co-transfected with a PMP22 silencing or Autocrine motility factor receptor(AMFR/gp78)overexpressing vector to explore the regulation of gp78 on PMP22 and its relationship with autophagy and ***:The activity of gp78 could be inﬂuenced by EV71-VP1,leading to a decrease in the ubiquitination and degradation of PMP22,resulting in PMP22 accumulation in *** VP1-overexpressing mouse SCs,all three ER stress sensors,including pancreatic endoplasmic reticulum kinase(PERK),activating transcription factor 6(ATF6)and inositol-requiring enzyme 1(IRE1)and the related downstream signals(C/EBP-homologous protein(CHOP)and Caspase 12)were activated,as well as the ER-resident chaperone Glucose-regulated protein 78(GRP78).In addition,VP1 upregulated the autophagy marker Microtubule-associated protein 1 light chain 3 beta(LC3B),while PMP22 silencing or gp78 overexpression reversed the ***,PMP22 silencing or gp78 overexpression increased proliferation of EV71-VP1-transfected mouse ***:Gp78 could regulate PMP22 accumulation through ubiquitination degradation and cause ER stress and autophagy in EV71-VP1-overexpressing mouse ***,the gp78/PMP22/ER stress axis might emerge as a promising therapeutic target for myelin and neuronal damage induced by EV71 infection.

关键词： Enterovirus type 71 AMFR/gp78 PMP22 Autophagy Schwann cells

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Predictive value of machine learning models for lymph node metastasis in gastric cancer: A two-center study

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World Journal of Gastrointestinal Surgery 2024年第1期16卷 85-94页

作者： Tong Lu Miao Lu Dong Wu Yuan-Yuan Ding Hao-Nan Liu Tao-Tao Li Da-Qing Song department of Emergency Medicine Jining No.1 People’s HospitalJining 272000Shandong ProvinceChina Wuxi Mental Health center Wuxi 214000Jiangsu ProvinceChina department of Gastroenterology Jining No.1 People’s HospitalJining 272000Shandong ProvinceChina department of Oncology The Affiliated Hospital of Xuzhou Medical UniversityXuzhou 221002Jiangsu ProvinceChina

BACKGROUND Gastric cancer is one of the most common malignant tumors in the digestive system,ranking sixth in incidence and fourth in mortality *** 42.5%of metastatic lymph nodes in gastric cancer belong to nodule type and peripheral type,the application of imaging diagnosis is *** To establish models for predicting the risk of lymph node metastasis in gastric cancer patients using machine learning(ML)algorithms and to evaluate their pre-dictive performance in clinical *** Data of a total of 369 patients who underwent radical gastrectomy at the Depart-ment of General Surgery of Affiliated Hospital of Xuzhou Medical University(Xuzhou,China)from March 2016 to November 2019 were collected and retro-spectively analyzed as the training *** addition,data of 123 patients who underwent radical gastrectomy at the department of General Surgery of Jining First People’s Hospital(Jining,China)were collected and analyzed as the verifi-cation *** ML models,including decision tree,random forest,support vector machine(SVM),gradient boosting machine,naive Bayes,neural network,and logistic regression,were developed to evaluate the occurrence of lymph node metastasis in patients with gastric *** ML models were established fo-llowing ten cross-validation iterations using the training dataset,and subsequently,each model was assessed using the test *** models’performance was evaluated by comparing the area under the receiver operating characteristic curve of each *** Among the seven ML models,except for SVM,the other ones exhibited higher accuracy and reliability,and the influences of various risk factors on the models are *** The ML models developed exhibit strong predictive capabilities for lymph node metastasis in gastric cancer,which can aid in personalized clinical diagnosis and treatment.

关键词： Machine learning Prediction model Gastric cancer Lymph node metastasis

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