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Effect of pre-heat treatment and subsequent ECAP-CU on microstructure and corrosion behavior of 7075 Al alloy fasteners
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作者 ZHANG Jun-jie HE Tao +4 位作者 DU Xiang-yang ALEXER Vereschaka SONG Miao CHEN Xi-lin LI Jian 《Journal of Central South University》 2025年第7期2383-2403,共21页
It is of great significance to study the corrosion process of aluminum(Al)alloys fasteners in order to mitigate corrosion for their widespread applications.In this paper,a method for enhancing the corrosion resistance... It is of great significance to study the corrosion process of aluminum(Al)alloys fasteners in order to mitigate corrosion for their widespread applications.In this paper,a method for enhancing the corrosion resistance of Al alloy fasteners is proposed.7075 Al alloy parts with a fine-grained microstructure were prepared by pre-heat treatment(PHT),combined subsequent equal channel angular pressing(ECAP)and cold upsetting(CU).The corrosion behavior of the specimens was investigated by intergranular corrosion and electrochemical test.Microstructure investigations were carried out by field emission scanning electron microscopy,energy dispersive spectrometer and transmission electron microscopy.The relationship between microstructural evolution and corrosion resistance changes was also explored.The results show that both PHT and ECAP-CU significantly improved the corrosion resistance of the samples and modified the corrosion process.The open circuit potential,corrosion current density and corrosion rate of the alloy on electrochemical test were(-0.812±8.854)×10^(-5) V(vs.SCE),(6.379±0.025)×10^(-6) A/cm^(2) and 0.066 mm/year,respectively,and the intergranular corrosion depth was(557±8)μm.The main factor controlling the corrosion behavior was the microstructure evolution.After PHT,the disappearance of the dendritic structure and the dissolution of the nonequilibrium second phase eliminated the potential difference between the phases,reducing the free energy in the as cast state.When ECAP-CU was used after PHT,the grain refinement was accompanied by a high density of grain boundaries and dislocations,which led to the formation of a denser passivation film on the alloy surface,improving the corrosion resistance in an aggressive environment. 展开更多
关键词 aluminum alloy fasteners heat treatment equal channel angular pressing cold upsetting MICROSTRUCTURE corrosion resistance
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Effect of Argon Atmosphere Heat Treatment on Mechanical Properties and Microstructural Evolution of Shicolon-Ⅱ SiC Fibers
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作者 YUAN Wang HU Jianbao +3 位作者 ZHOU Liang KAN Yanmei ZHANG Xiangyu DONG Shaoming 《无机材料学报》 北大核心 2026年第1期119-128,共10页
Silicon carbide fibers are considered ideal reinforcing materials for ceramic matrix composites due to their excellent mechanical properties and high-temperature performance.Different types of fibers necessitate indiv... Silicon carbide fibers are considered ideal reinforcing materials for ceramic matrix composites due to their excellent mechanical properties and high-temperature performance.Different types of fibers necessitate individual investigation due to variations in their composition and fabrication processes.This study presents a comprehensive investigation into evolution of the mechanical properties,surface microstructure,and composition of Shicolon-Ⅱ fibers subjected to argon heat treatment at temperatures ranging from 1300℃to 1700℃.The Shicolon-Ⅱ fibers are composed of small-sized β-SiC grains,SiC_(x)O_(y) amorphous phase,and a minor amount of graphite microcrystals.Following treatment in an argon atmosphere at 1300℃,the fibers maintain a monofilament tensile strength of 3.620 GPa,corresponding to a retention of 98.32%.This strength diminishes to 2.875 GPa,equating to a retention of 78.08%,after treatment at 1500℃.The reduction in mechanical properties of the fibers can be ascribed to the decomposition of the amorphous phase and the growth of β-SiC grains.Furthermore,creep resistance is an essential factor influencing the long-term performance of composite materials.After treatment at temperatures above 1400℃,the high-temperature creep resistance of the fibers is significantly enhanced due to growth of β-SiC grains.This study offers valuable theoretical insights into high-temperature applications of second-generation fibers,contributing to an enhanced understanding of their performance under extreme conditions. 展开更多
关键词 Shicolon-ⅡSiC fiber heat treatment mechanical property MICROSTRUCTURE
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A review of advancements in the management and treatment of psoriasis
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作者 Kashish Wilson Chander Parkash Dora +1 位作者 Hitesh Chopra Sumeet Gupta 《Biomedical Engineering Communications》 2026年第2期23-40,共18页
Psoriasis is a hereditary,autoimmune,chronic illness that influences the immune system and can have both cutaneous and systemic symptoms.It can seriously impair a patient’s quality of life.Psoriasis affects 2.3 perce... Psoriasis is a hereditary,autoimmune,chronic illness that influences the immune system and can have both cutaneous and systemic symptoms.It can seriously impair a patient’s quality of life.Psoriasis affects 2.3 percent of people globally and has a significant financial cost for those who suffer from it.Genes and environmental factors are the primary etiological factors.Dendritic cells,T cells,human neutrophilic peptides,lipoprotein-2,galactosin-3,fractalkine,vaspin,and familial predispositions,among other factors,are characteristics of the pathophysiology of psoriasis.Conventional psoriasis treatments for patients include corticosteroids,biological agents,vitamin D3 analogs,acitretin,calcineurin inhibitors,cyclosporine,methotrexate,and phototherapy.Growing in popularity as a multidisciplinary field of study,nano dermatology is being used to treat psoriasis.Over the years,major advancements have been made in understanding its complex pathogenesis and developing more effective,targeted treatments.Medication delivery methods utilizing nanocarriers demonstrate promise in treating psoriasis because they improve medication penetration,reduce side effects,and provide targeted action at the afflicted areas.Because of their biological compatibility,adaptability,and capacity for carrying a variety of therapeutic substances,lipid-based and polymer-based nanocarriers have demonstrated exceptional promise among them.This article summarizes the pathogenesis,epidemiology,clinical diagnosis,and conventional psoriasis treatments.Furthermore,the review includes an overview of various nanotechnology-based psoriasis treatments. 展开更多
关键词 PSORIASIS topical treatments systemic treatments NANOCARRIERS
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Regulation of Microstructure,Mechanical Properties,and Corrosion Properties of Laser-Melting-Deposited B_(4)C/TC4 Composite by Heat Treatment
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作者 Zhao Cenya Zheng Yang +4 位作者 Xiong Ruize Ji Wenkang Zhang Daohong Liu Wei Tao Hailin 《稀有金属材料与工程》 北大核心 2026年第2期285-291,共7页
The TiB+TiC dual-reinforced B_(4)C/TC4 composite was in-situ fabricated via incorporating 0.5wt%B_(4)C reinforcement during the laser melting deposition process.Different heat treatments of annealing and solid solutio... The TiB+TiC dual-reinforced B_(4)C/TC4 composite was in-situ fabricated via incorporating 0.5wt%B_(4)C reinforcement during the laser melting deposition process.Different heat treatments of annealing and solid solution were used to regulate the microstructure,mechanical properties,and corrosion properties of B_(4)C/TC4 composite.Results show that with the increase in temperature from 500℃to 800°C,partial lamellarα-Ti in the as-deposited sample is gradually transformed into equiaxedα-Ti,accompanied by the disappearance of basketweave microstructure.At 1100°C,a small portion of TiC phase suffers fusion.This composite exhibits the optimal combination of strength and plasticity after annealing at 500℃for 4 h followed by furnace cooling,which is attributed to the stress release effect and the refined basketweave microstructure.However,this composite shows a decline in corrosion resistance after various heat treatments due to grain coarsening and micro-galvanic corrosion. 展开更多
关键词 B_(4)C/TC4 composite laser melting deposition heat treatment mechanical property corrosion property
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Colour Changes of Wood Veneer as a Function of Heat Treatment
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作者 Hikaru Kobori Emilia-Adela Manea Salca +3 位作者 Tetsuya Inagaki Shigehiko Suzuki Sahriyanti Saad Aujchariya Chotikhun 《Journal of Renewable Materials》 2026年第2期50-64,共15页
Heat treatment is applied towood to improve various properties of thematerial.Thepresent study focuses on the colour changes of wood veneer samples due to heat treatment.Native wood species fromJapan and Europe,such a... Heat treatment is applied towood to improve various properties of thematerial.Thepresent study focuses on the colour changes of wood veneer samples due to heat treatment.Native wood species fromJapan and Europe,such as Japanese oak(Quercus mongolica var.crispula),field maple(Acer campestre)and Scots pine(Pinus sylvestris)were used in the experiments.A laboratory-type oven was used to apply the heat at a temperature of 190○C,in the presence of oxygen,for different periods,gradually increasing from 5 to 40 min.The CIELab system(a colour space defined by the International Commission on Illumination)and Near Infrared Spectroscopy(NIR)were employed to evaluate the colour modifications on the samples.As expected,the heat treatment affected the colour of the samples.The lightness index decreased across the three wood species during the treatment.The chroma coordinates changed for pine and maple,while little change occurred in Japanese oak.The overall total colour differences reached their maximum at the final 40-min interval for all wood types.Based on the NIR evaluation,it was found that drastic thermal denaturation of cellulose was unlikely to occur,and the changes in the intermolecular interaction of water affected the colour of the specimens.The data and information of this study could be useful for industrial applications where the veneer of such species is desired.Such heat-treated veneers can be considered as value-added products in furniture manufacturing as well as restoration of furniture units where such veneer is used as an overlay. 展开更多
关键词 Colour stability Japanese oak MAPLE PINE heat treatment
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Processing effects on the characteristics of oat protein solutions: The role of enzymatic treatment and pH-shifting with mild heating
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作者 Anthony Suryamiharja Xiping Gong +2 位作者 Minghe Wang Kevin Mis Solval Hualu Zhou 《Grain & Oil Science and Technology》 2026年第1期1-10,共10页
Oat milk has gained widespread consumer acceptance for its creamy texture,β-glucan content,and environmental sustainability.However,its relatively low protein content(typically 2-3 g/serving)presents a nutritional li... Oat milk has gained widespread consumer acceptance for its creamy texture,β-glucan content,and environmental sustainability.However,its relatively low protein content(typically 2-3 g/serving)presents a nutritional limitation,largely due to poor protein solubility.This study investigated how processing conditions influence protein content and functional stability in oat-based systems by applying two treatments:(1)α-amylase enzymatic hydrolysis,and(2)pH-shifting(from pH 7 to 12 and back)with mild heating(50℃for 10 or 30 min).Oat protein solutions were formulated from two sources:oat flour(OF)and oat protein isolate(OPI).Results suggests that α-amylase pretreatment effectively reduced starch-driven viscosity in OF,facilitating better sample handling and centrifugation.Following pH-shifting and heat treatment,both OF and OPI solutions showed significantly improved protein solubility,with protein content increased from 2.0 to~6.5 g/serving.These changes were accompanied by reduced precipitation,smaller particle sizes,and more negative zeta potential values,indicating enhanced colloidal stability.SDS-PAGE analysis revealed the presence of low-molecular-weight protein fractions,supporting increased solubilization.Fluorescence microscopy confirmed the formation of smaller,more uniformly dispersed particles in treated samples compared to controls.However,noticeable darkening or browning occurred under high-pH heating,indicating potential challenges in color control.The findings provide useful information for future industrial applications and product innovation in the plant-based beverage sector. 展开更多
关键词 Oat protein Protein enrichment Enzymatical treatment PH-SHIFTING HEATING
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Research progress on traditional medicine treatment for metabolic-associated fatty liver disease
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作者 Yu-Fan Meng Qiu-Yi Wu Zu-Guo Zheng 《Traditional Medicine Research》 2026年第3期77-94,共18页
The global prevalence of metabolic-associated fatty liver disease(MAFLD)is on the rise,seriously threatening human health.Currently,no specific approved drugs are available for its treatment.This paper reviews the pat... The global prevalence of metabolic-associated fatty liver disease(MAFLD)is on the rise,seriously threatening human health.Currently,no specific approved drugs are available for its treatment.This paper reviews the pathogenesis of MAFLD,covering aspects like lipid accumulation and insulin resistance,oxidative stress,endoplasmic reticulum stress(ERS),lipotoxicity-induced hepatocyte damage,and fibrosis.It also elaborates on multiple treatment approaches for MAFLD,including metabolic regulation,improvement of the gut-liver axis interaction,modulation of immune and inflammatory pathways,enhancement of the adipose tissue-liver interaction,alleviation of fibrosis,prevention of hepatocyte injury,and traditional Chinese medicine(TCM)external therapies.Additionally,natural product research advancements,individual Chinese medicine components,and mixed herbal formulas for MAFLD treatment is provided.Many natural products and traditional Chinese medicines exhibit favorable effects in regulating lipid metabolism,anti-inflammation,and anti-oxidation,offering new directions and potential drug options for MAFLD treatment.This is expected to provide a reference for future clinical treatment and drug development. 展开更多
关键词 MAFLD traditional medicine treatment TCM fatty acid metabolism
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Evolution or Revolution in Colorectal Cancer Treatment:Present and Future of New Therapeutic Options.A Narrative Review
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作者 Urszula Czescik Martyna Gryglas +1 位作者 Arkadiusz Szterk Sylwia Flis 《Oncology Research》 2026年第2期29-53,共25页
Colorectal cancer(CRC)is the third most common malignancy worldwide and the second leading cause of cancer-related deaths,accounting for approximately 10%of all cancer cases.By 2050,CRC incidence is expected to rise s... Colorectal cancer(CRC)is the third most common malignancy worldwide and the second leading cause of cancer-related deaths,accounting for approximately 10%of all cancer cases.By 2050,CRC incidence is expected to rise substantially,driven by population aging and greater exposure to risk factors in developing countries.Despite advances in medicine and pharmacy,the effectiveness of available treatments remains limited,underscoring the urgent need for innovative therapeutic strategies.This review summarizes and critically evaluates currently available CRC therapies and explores new emerging directions.Particular attention is given to the role of immunotherapy,targeted therapies,nanotechnology-based approaches,metal-based compounds,PROTAC technology,and personalized medicine,with emphasis on their efficacy,safety,accessibility,and mechanisms of drug resistance.In conclusion,surgery and chemotherapy remain the backbone of CRC treatment,but novel therapeutic approaches are reshaping the treatment landscape.Emerging strategies may offer improved patient tolerability and survival outcomes by reducing the occurrence of burdensome adverse effects.Persistent challenges such as drug toxicity,the emergence of resistance mechanisms,and inequalities in access to innovative therapies underscore the need for further translational research.Integrating personalized therapeutic approaches will also be crucial to achieving more effective,safer,and accessible treatment strategies for CRC. 展开更多
关键词 Colorectal cancer(CRC) treatment CHEMOTHERAPY innovative therapeutic strategies
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Proposal,Promotion,and Practice and Application of Damage Control Surgery Concept in Trauma Treatment at Grassroots Hospitals
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作者 Jingcheng Chen Yongzhan Chen Jing Xu 《Journal of Clinical and Nursing Research》 2026年第1期366-372,共7页
The concept of Damage Control Surgery(DCS)emphasizes prioritizing hemorrhage control,preventing hypothermia,correcting coagulopathy,and acidosis in trauma treatment.The application of the DCS concept in trauma treatme... The concept of Damage Control Surgery(DCS)emphasizes prioritizing hemorrhage control,preventing hypothermia,correcting coagulopathy,and acidosis in trauma treatment.The application of the DCS concept in trauma treatment at grassroots hospitals faces numerous challenges such as limited resources,high technical difficulty,and insufficient multidisciplinary collaboration.Therefore,DCS strategies need to be adapted to simplified processes to create conditions for subsequent treatment.This paper retrieves relevant literature to discuss the proposal,promotion,and application of the DCS concept,aiming to provide evidence-based basis for optimizing trauma treatment outcomes at grassroots hospitals. 展开更多
关键词 Damage control surgery Concept promotion Grassroots hospitals Trauma treatment
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Validating the athermal contribution of electropulsing treatment utilizing T-type Mg specimen
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作者 Jong Han Song Seung Yeop Lee +6 位作者 Seho Cheon Seong Ho Lee Jinyeong Yu Seunghun Baek Jeongkyun Roh Sung Hyuk Park Taekyung Lee 《Journal of Magnesium and Alloys》 2026年第1期280-291,共12页
A novel T-type specimen enabled the separation of the thermal and athermal contributions of electropulsing treatment(EPT)in pretwinned AZ31 Mg alloy.The combination of T-type geometry and carefully selected EPT condit... A novel T-type specimen enabled the separation of the thermal and athermal contributions of electropulsing treatment(EPT)in pretwinned AZ31 Mg alloy.The combination of T-type geometry and carefully selected EPT conditions equalized the thermal contributions at two distinct locations(J70-C and J77-D)in a thermally stable regime,which isolated the athermal effect in J70-C.The results were verified using finite element analysis.Although the athermal EPT contribution did not alter the fundamental microstructural evolution mechanisms,the evolution rate increased significantly.As a result,the J70-C region exhibited faster grain growth,annihilation of twin boundaries,reduction of low-angle grain boundaries,dislocation annihilation,and static recrystallization compared to its counterpart,as further supported by the microhardness trends.These results were interpreted in light of the additional driving force by the athermal EPT contribution,which accelerated the strain-induced boundary migrations beyond Joule heating alone.The proposed T-type specimen methodology offers a robust framework for decoupling the thermal and athermal effects in macroscale EPT processes. 展开更多
关键词 Electropulsing treatment Athermal effect Specimen design MAGNESIUM Strain-induced boundary migration
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Global research status in the treatment of glaucoma:a systematic bibliometric analysis
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作者 Wen-Hui Liu Chang Shu +1 位作者 Bei-Di Jia Xiao-Rong Li 《International Journal of Ophthalmology(English edition)》 2026年第2期379-392,共14页
AIM:To present an overview of the research on global glaucoma treatment in the last decade in terms of publication year,journals,countries/regions,organizations,references,and keywords,to investigate the current resea... AIM:To present an overview of the research on global glaucoma treatment in the last decade in terms of publication year,journals,countries/regions,organizations,references,and keywords,to investigate the current research international trends and hot topics in this area.METHODS:Bibliometric analysis was conducted on 9128 articles in the Web of Science Core Collection(WoSCC;Clarivate)database.Quantitative and qualitative analysis was employed using VOSviewer(v1.6.18),Pajek(v1.0.0.0),and CiteSpace(v6.1.R2)software.RESULTS:The 9128 papers relating to glaucoma treatment were published from April 2013 to April 2023,of which 7482 articles(82%)were original research articles and 1464(18%)were review articles.The United States(2867)and Johns Hopkins University(166)were the most productive country and institution,respectively,but the University College London had the highest h-index(54).The Journal of Glaucoma was the most productive and Ophthalmology had the highest h-index compared with other journals.The Keywords of interest included treatment surgery,cyclophotocoagulation,minimally invasive glaucoma surgery(MIGS),trabeculectomy,baerveldt,epidemiology,medication adherence,nanoparticle,optical coherence tomography(OCT),gene therapy,and artificial intelligence(AI).Glaucoma surgery appeared as a current research hotspot through the analysis of keywords.CONCLUSION:This study provides insights into the research trends and potential research hotspots in the treatment of glaucoma.This will help researchers to evaluate research policies and to promote international cooperation. 展开更多
关键词 glaucoma treatment bibliometric analysis SURGERY minimally invasive glaucoma surgery NANOPARTICLE
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Research on the Clinical Outcomes of Surgical Treatment for Patients with Oral and Maxillofacial Tumors
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作者 Ru Xu 《Journal of Clinical and Nursing Research》 2026年第1期373-379,共7页
Due to the special anatomical location,complex functions,and significant impact on patients’appearance and psychology,the treatment of oral and maxillofacial tumors has always been a key and difficult issue in the fi... Due to the special anatomical location,complex functions,and significant impact on patients’appearance and psychology,the treatment of oral and maxillofacial tumors has always been a key and difficult issue in the field of head and neck surgery.With the rapid development of surgical technology,microsurgical reconstruction technology,perioperative management,and multidisciplinary treatment models,surgical treatment has occupied a core position in the comprehensive treatment system of oral and maxillofacial tumors.Based on this,this paper conducts research on the clinical outcomes of surgical treatment for patients with oral and maxillofacial tumors,expounds the optimization strategies of surgical treatment,and analyzes the clinical effects of the optimized surgical treatment,aiming to provide a reference for the clinical treatment of oral and maxillofacial tumors. 展开更多
关键词 Oral and maxillofacial tumors Surgical treatment Clinical outcomes Optimization strategies
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Advances in fecal microbiota transplantation for the treatment of Helicobacter pylori infection
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作者 Wei Fu Yu Li +3 位作者 Hai-Yan Bi Xiao-Yue Wu Yan Geng Hu-Lin Wang 《Infectious Diseases Research》 2026年第1期4-9,共6页
Helicobacter pylori(H.pylori)infection remains a pivotal driver of chronic gastritis,peptic ulcer,gastric mucosa-associated lymphoid tissue lymphoma and gastric cancer,yet its eradication is increasingly frustrated by... Helicobacter pylori(H.pylori)infection remains a pivotal driver of chronic gastritis,peptic ulcer,gastric mucosa-associated lymphoid tissue lymphoma and gastric cancer,yet its eradication is increasingly frustrated by climbing antibiotic resistance and intolerable side-effects of standard triple or quadruple therapies.In recent years,fecal microbiota transplantation(FMT),a strategy that reconstructs the gut ecosystem by introducing a healthy donor microbiome,has emerged as a novel adjunct or alternative.By competitively excluding H.pylori,reinforcing mucosal barrier integrity,modulating host immunity and secreting bacteriocins,FMT can raise eradication rates,relieve dyspeptic symptoms and lower recurrence.This review synthesizes up-to-date pre-clinical,pilot and controlled clinical data,dissects underlying mechanisms,compares delivery routes,donor screening protocols and safety profiles,and discusses regulatory,ethical and standardization hurdles that must be overcome before large-scale clinical application. 展开更多
关键词 fecal microbiota transplantation Helicobacter pylori gut microbiota infection treatment mechanism research
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A decision framework for rural domestic sewage treatment models and process:Evidence from Inner Mongolia Autonomous Region,China
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作者 Ying Yan Pengyu Li +5 位作者 Zixuan Wang Yubo Tan Tianlong Zheng Jianguo Liu Xiaoxia Yang Junxin Liu 《Journal of Environmental Sciences》 2026年第1期302-311,共10页
Rural domestic sewage treatment is critical for environmental protection.This study defines the spatial pattern of villages from the perspective of rural sewage treatment and develops an integrated decision-making sys... Rural domestic sewage treatment is critical for environmental protection.This study defines the spatial pattern of villages from the perspective of rural sewage treatment and develops an integrated decision-making system to propose a sewage treatment mode and scheme suitable for local conditions.By considering the village spatial layout and terrain factors,a decision tree model of residential density and terrain type was constructed with accuracies of 76.47%and 96.00%,respectively.Combined with binary classification probability unit regression,an appropriate sewage treatment mode for the village was determined with 87.00%accuracy.The Analytic Hierarchy Process(AHP),combined with the Technique for Order Preference(TOPSIS)by Similarity to an Ideal Solution model,formed the basis for optimal treatment process selection under different emission standards.Verification was conducted in 542 villages across three counties of the Inner Mongolia Autonomous Region,focusing on the standard effluent effect(0.3773),low investment cost(0.3196),and high standard effluent effect(0.5115)to determine the best treatment process for the same emission standard under different needs.The annual environmental and carbon emission benefits of sewage treatment in these villages were estimated.This model matches village density,geographic feature,and social development level,and provides scientific support and a theoretical basis for rural sewage treatment decision-making. 展开更多
关键词 Rural domestic sewage Sewage treatment model DECISION-MAKING Environmental-economic benefits Inner Mongolia
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Outcomes and predictors of treatment failure following direct-acting antiviral therapy in chronic hepatitis C:A retrospective cohort study
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作者 Noralwani Badarol-Hisham Nur Izzati Kamal-Roslan +4 位作者 Niazlin Mohd Taib Mazriza Madon Norita Zainol Zamberi Sekawi Siti Norbaya Masri 《Asian Pacific Journal of Tropical Medicine》 2026年第1期25-32,共8页
Objective:To evaluate the effectiveness of direct-acting antivirals(DAAs)in patients with chronic hepatitis C,assess changes in liver function and hepatic fibrosis following treatment,and identify independent predicto... Objective:To evaluate the effectiveness of direct-acting antivirals(DAAs)in patients with chronic hepatitis C,assess changes in liver function and hepatic fibrosis following treatment,and identify independent predictors of treatment failure.Methods:This retrospective cohort study included patients who received DAA therapy at Hospital Kuala Lumpur between January 2020 and December 2023.Sustained virologic response(SVR)was assessed at least 12 weeks post-treatment by reverse transcription-polymerase chain reaction for hepatitis C virus(HCV)RNA.Demographic,clinical,and laboratory data were collected and analyzed.Multiple logistic regression analysis was performed to identify independent predictors of treatment failure.Results:A total of 335 patients in the study.The overall SVR rate was 89%.After achieving SVR,significant improvements were observed in liver enzyme levels and non-invasive liver fibrosis scores,whereas the overall Model for End-Stage Liver Disease(MELD)scores remained unchanged.Significant independent predictors of treatment failure included non-compliance with DAA therapy[adjusted odds ratio(aOR)68.3;95%confidence interval(95%CI)16.3-285.0;P<0.001],treatment with sofosbuvir/velpatasvir(aOR 6.1;95%CI 1.4-26.5;P=0.015),MELD score of 10-15(aOR 4.6;95%CI 1.1-18.2;P=0.031),HCV genotype 3 infection(aOR 4.5;95%CI 1.1-17.6;P=0.031),and elevated serum total bilirubin level(aOR 1.1;95%CI 1.0-1.1;P=0.003).Conclusions:DAA therapy yielded a high SVR rate,and treatment failure was strongly associated with non-adherence to therapy and advanced liver disease.These findings underscore the necessity of adherence support,early diagnosis,and individualized clinical management to optimize treatment outcomes in patients with chronic hepatitis C. 展开更多
关键词 Chronic hepatitis C Direct-acting antiviral agent Liver function CIRRHOSIS treatment compliance Hepatitis elimination
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Achieving low-porosity and high-strength 2219 aluminum alloy joints through coupling of laser beam oscillation and post-weld heat treatment
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作者 ZHU Liang-jin DONG Guo-jiang +1 位作者 YANG Zhuo-yun BI Jiang 《Journal of Central South University》 2026年第1期90-109,共20页
Laser welding is a highly promising joining method for Al alloys.However,certain limitations such as elevated thermal input and keyhole instability are associated with its application in medium-thickness aluminium all... Laser welding is a highly promising joining method for Al alloys.However,certain limitations such as elevated thermal input and keyhole instability are associated with its application in medium-thickness aluminium alloy plates.To address these issues,circular oscillating laser welding combined with post-weld heat treatment was employed to improve the formation quality and mechanical properties of the welds.The effects of the frequency of circular oscillating laser on the forming quality,microstructure,and properties of the welds were analyzed.At an oscillation frequency of 200 Hz,the grain size in the weld zone was reduced compared to single laser welding,and the maximum tensile strength of the weld was observed to reach(264.96±1.33)MPa,representing approximately 61.19%of the base metal.Following the post-weld heat treatment of"solid solution and artificial aging",the grain boundary segregation was diminished.Nanoscale precipitated phases are present in the weld zone.Furthermore,the tensile strength was augmented to(386.35±5.65)MPa,representing approximately 89.23%of the strength of the base metal.The results of this study can provide a theoretical basis and technological reference for the circular oscillating laser welding of medium-thickness 2219-T 6 aluminium alloy plates. 展开更多
关键词 2219 aluminium alloy circular oscillating laser welding parameter optimization POROSITY post-weld heat treatment mechanical enhancement
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Current understanding and prospects for targeting neurogenesis in the treatment of cognitive impairment
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作者 Ye Liu Xibing Ding +1 位作者 Shushan Jia Xiyao Gu 《Neural Regeneration Research》 2026年第1期141-155,共15页
Adult hippocampal neurogenesis is linked to memory formation in the adult brain,with new neurons in the hippocampus exhibiting greater plasticity during their immature stages compared to mature neurons.Abnormal adult ... Adult hippocampal neurogenesis is linked to memory formation in the adult brain,with new neurons in the hippocampus exhibiting greater plasticity during their immature stages compared to mature neurons.Abnormal adult hippocampal neurogenesis is closely associated with cognitive impairment in central nervous system diseases.Targeting and regulating adult hippocampal neurogenesis have been shown to improve cognitive deficits.This review aims to expand the current understanding and prospects of targeting neurogenesis in the treatment of cognitive impairment.Recent research indicates the presence of abnormalities in AHN in several diseases associated with cognitive impairment,including cerebrovascular diseases,Alzheimer's disease,aging-related conditions,and issues related to anesthesia and surgery.The role of these abnormalities in the cognitive deficits caused by these diseases has been widely recognized,and targeting AHN is considered a promising approach for treating cognitive impairment.However,the underlying mechanisms of this role are not yet fully understood,and the effectiveness of targeting abnormal adult hippocampal neurogenesis for treatment remains limited,with a need for further development of treatment methods and detection techniques.By reviewing recent studies,we classify the potential mechanisms of adult hippocampal neurogenesis abnormalities into four categories:immunity,energy metabolism,aging,and pathological states.In immunity-related mechanisms,abnormalities in meningeal,brain,and peripheral immunity can disrupt normal adult hippocampal neurogenesis.Lipid metabolism and mitochondrial function disorders are significant energy metabolism factors that lead to abnormal adult hippocampal neurogenesis.During aging,the inflammatory state of the neurogenic niche and the expression of aging-related microRNAs contribute to reduced adult hippocampal neurogenesis and cognitive impairment in older adult patients.Pathological states of the body and emotional disorders may also result in abnormal adult hippocampal neurogenesis.Among the current strategies used to enhance this form of neurogenesis,physical therapies such as exercise,transcutaneous electrical nerve stimulation,and enriched environments have proven effective.Dietary interventions,including energy intake restriction and nutrient optimization,have shown efficacy in both basic research and clinical trials.However,drug treatments,such as antidepressants and stem cell therapy,are primarily reported in basic research,with limited clinical application.The relationship between abnormal adult hippocampal neurogenesis and cognitive impairment has garnered widespread attention,and targeting the former may be an important strategy for treating the latter.However,the mechanisms underlying abnormal adult hippocampal neurogenesis remain unclear,and treatments are lacking.This highlights the need for greater focus on translating research findings into clinical practice. 展开更多
关键词 aging Alzheimer's disease cerebrovascular diseases cognitive impairment energy metabolism HIPPOCAMPUS immune mechanisms NEUROGENESIS pathological states treatment
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Advancing Plasmodium vivax malaria treatment in India:The vital role of glucose 6-phosphate dehydrogenase point-of-care tests
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作者 Nitika Nitika Praveen Kumar Bharti 《Asian Pacific Journal of Tropical Medicine》 2026年第2期49-50,共2页
For India to achieve elimination by 2030,the challenges posed by Plasmodium(P.)vivax cannot be overlooked owing to its burden and unique biology.In 2023,in India,about 224000 malaria cases were reported,and a signific... For India to achieve elimination by 2030,the challenges posed by Plasmodium(P.)vivax cannot be overlooked owing to its burden and unique biology.In 2023,in India,about 224000 malaria cases were reported,and a significant proportion(40%)were P.vivax cases.In P.vivax infection,the persistence of dormant liver stage of parasite,i.e.,hypnozoites,leading to relapses weeks or months later poses challenge in its elimination. 展开更多
关键词 plasmodium vivax elimination hypnozoites RELAPSES point care tests malaria treatment glucose phosphate dehydrogenase dormant liver stage
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Mitophagy:A key regulator in the pathophysiology and treatment of spinal cord injury
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作者 Qiuyang Gu Shengye Yuan +7 位作者 Yumei An Wenyue Sun Mingyuan Xu Mengchun Xue Xianzhe Li Chao Liu Haiyan Shan Mingyang Zhang 《Neural Regeneration Research》 2026年第4期1396-1408,共13页
Mitophagy is closely associated with the pathogenesis of secondary spinal cord injury.Abnormal mitophagy may contribute significantly to secondary spinal cord injury,leading to the impaired production of adenosine tri... Mitophagy is closely associated with the pathogenesis of secondary spinal cord injury.Abnormal mitophagy may contribute significantly to secondary spinal cord injury,leading to the impaired production of adenosine triphosphate,ion imbalance,the excessive production of reactive oxygen species,neuroinflammation,and neuronal cell death.Therefore,maintaining an appropriate balance of mitophagy is crucial when treating spinal cord injury,as both excessive and insufficient mitophagy can impede recovery.In this review,we summarize the pathological changes associated with spinal cord injury,the mechanisms of mitophagy,and the direct and indirect relationships between mitophagy and spinal cord injury.We also consider therapeutic approaches that target mitophagy for the treatment of spinal cord injury,including ongoing clinical trials and other innovative therapies,such as use of stem cells,nanomaterials,and small molecule polymers.Finally,we highlight the current challenges facing this field and suggest potential directions for future research.The aim of our review is to provide a theoretical reference for future studies targeting mitophagy in the treatment of spinal cord injury. 展开更多
关键词 ATP production disorders cell death mitochondria MITOPHAGY NEUROINFLAMMATION NEUROPROTECTION oxidative stress secondary injury spinal cord injury treatment
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Successful treatment of a patient with mixed pesticide poisoning caused by lethal-dose emamectin benzoate and chlorfenapyr
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作者 Xueting Cao Yunhan Liu +4 位作者 Gen Ba Ji Wang Haikang Jin Dianxia Lu Jinsong Zhang 《World Journal of Emergency Medicine》 2026年第1期89-91,共3页
Pesticide poisoning remains a critical public health challenge worldwide.At present,chlorfenapyr,classifi ed by the World Health Organization(WHO)as a moderately toxic insecticide,is increasingly used in agriculture,l... Pesticide poisoning remains a critical public health challenge worldwide.At present,chlorfenapyr,classifi ed by the World Health Organization(WHO)as a moderately toxic insecticide,is increasingly used in agriculture,leading to more poisoning incidents.It has a fatality rate as high as 76%after poisoning.[1]Here,we report a successful treatment of a patient with mixed pesticide poisoning caused by lethaldose emamectin benzoate(EB)and chlorfenapyr in the Department of Critical Care Medicine,Yangzhou Hongquan Hospital. 展开更多
关键词 mixed pesticide poisoning fatality rate public health challenge CHLORFENAPYR emamectin benzoate lethaldose emamectin benzoate eb pesticide poisoning treatment
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