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Equity issues and the PeCUS index:an indirect analysis of community severance
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作者 Daniela Vanessa Rodriguez Lara Antonio Nelson Rodrigues da Silva 《Geo-Spatial Information Science》 SCIE CSCD 2020年第4期293-304,共12页
Urban barriers are often a consequence of the unplanned expansion of transport infrastructures,housing growth nearby existing transport infrastructures,and the vehicular traffic itself.This process,also known as“comm... Urban barriers are often a consequence of the unplanned expansion of transport infrastructures,housing growth nearby existing transport infrastructures,and the vehicular traffic itself.This process,also known as“community severance”,is a problem that affects the travel patterns of the population and causes negative impacts to adjacent communities,but it is not easy to assess.As an alternative to the costly technologies and restricted-access data sometimes used to analyze urban barriers,we propose an analytical approach that assesses community severance levels by classifying the quality of Pedestrian Crossings on Urban Streets(the PeCUS index).Additionally,the approach is used to identify possible inequities nearby the different classification groups regarding demographic data.We used the chi-square(χ^(2))test of independence and the standardized Pearson residuals to indicate deficits and excesses of residents regarding the demographic characteristics studied surrounding the urban streets.We found the following evidences of associations:residents with low-income or those aged up to 19 tend to live close to the worst crossings,whereas residents with permanent mobility constraints or the elderly tend to live near the crossings with the best classifications.Therefore,the study shows that the assessment of community severance by the analysis of the PeCUS index is feasible.Moreover,it reveals that the distribution of residents surrounding the distinct classes of quality of crossings is equitable for vulnerable social groups,except for low-income or young residents. 展开更多
关键词 Community severance transport barriers pedestrian crossings EQUITY open data geographic information systems(GIS)
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Polyethylene glycol-fusion retards Wallerian degeneration and rapidly restores behaviors lost after nerve severance
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作者 George D.Bittner Michelle Mikesh Cameron L.Ghergherehchi 《Neural Regeneration Research》 SCIE CAS CSCD 2016年第2期217-219,共3页
Some biological uses of polyethylene glycol(PEG):The use of PEG as a membrane fusogen was first reported in 1976with the creation of cell hybrids,formed by suspending two cell lines in a 50%w/w solution of PEG in w... Some biological uses of polyethylene glycol(PEG):The use of PEG as a membrane fusogen was first reported in 1976with the creation of cell hybrids,formed by suspending two cell lines in a 50%w/w solution of PEG in water. 展开更多
关键词 FIGURE PEG Polyethylene glycol-fusion retards Wallerian degeneration and rapidly restores behaviors lost after nerve severance
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Metagenomic-based rapid identification and phylogenomic tracing of an imported melioidosis case in Beijing,China
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作者 Zhichao Liang Fuyu Qiao +1 位作者 Xin Zhang Bing Lv 《Asian Pacific Journal of Tropical Medicine》 2026年第2期91-93,共3页
Melioidosis is a zoonotic infectious disease caused by Burkholderia(B.)pseudomallei.It is predominantly endemic in Southeast Asia[1-3].Clinical manifestations are often non-specific,commonly presenting as pneumonia or... Melioidosis is a zoonotic infectious disease caused by Burkholderia(B.)pseudomallei.It is predominantly endemic in Southeast Asia[1-3].Clinical manifestations are often non-specific,commonly presenting as pneumonia or skin abscesses[4],and may progress to severe sepsis with a high case-fatality rate of 10%-50%[5].Due to its early flu-like symptoms,melioidosis is frequently misdiagnosed by clinicians in non-endemic regions.Beijing,located in the North Temperate Zone,rarely reports melioidosis cases;the lack of awareness among healthcare professionals may lead to misdiagnosis and fatal outcomes. 展开更多
关键词 zoonotic infectious disease imported case phylogenomic severe sepsis METAGENOMIC China MELIOIDOSIS BEIJING
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The Cullin3–Ring E3 ubiquitin ligase complex and USP14 regulate spastin-mediated microtubule severing and promotion of neurite outgrowth
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作者 Zhenbin Cai Hui Wu +7 位作者 Tao Jiang Ao Ma Zhichao Meng Jiehao Zhu Hongsheng Lin Yaozhong Liang Guowei Zhang Minghui Tan 《Neural Regeneration Research》 2026年第4期1641-1651,共11页
Post-translational modification of spastin enables precise spatiotemporal control of its microtubule severing activity.However,the detailed mechanism by which spastin turnover is regulated in the context of neurite ou... Post-translational modification of spastin enables precise spatiotemporal control of its microtubule severing activity.However,the detailed mechanism by which spastin turnover is regulated in the context of neurite outgrowth remains unknown.Here,we found that spastin interacted with ubiquitin and was significantly degraded by K48-mediated poly-ubiquitination.Cullin3 facilitated spastin degradation and ubiquitination.RING-box protein 1,but not RING-box protein 2,acted synergistically with Cullin3 protein to regulate spastin degradation.Overexpression of Culin3 or BRX1 markedly suppressed spastin expression,and inhibited spastin-mediated microtubule severing and promotion of neurite outgrowth.Moreover,USP14 interacted directly with spastin to mediate its deubiquitination.USP14 overexpression significantly increased spastin expression and suppressed its ubiquitination and degradation.Although co-expression of spastin and USP14 did not enhance microtubule severing,it did increase neurite length in hippocampal neurons.Taken together,these findings elucidate the intricate regulatory mechanisms of spastin turnover,highlighting the roles of the Cullin-3–Ring E3 ubiquitin ligase complex and USP14 in orchestrating its ubiquitination and degradation.The dynamic interplay between these factors governs spastin stability and function,ultimately influencing microtubule dynamics and neuronal morphology.These insights shed light on potential therapeutic targets for neurodegenerative disorders associated with spastin defects. 展开更多
关键词 Cullin3 microtubule severing neurite outgrowth protein degradation SPASTIN UBIQUITINATION USP14
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Association between anxiety,depression,and fatigue in elderly patients with Parkinson’s disease
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作者 Meng-Na Yang Xiao-Yu Peng Ye-Ping Chen 《World Journal of Psychiatry》 2026年第1期233-243,共11页
BACKGROUND Parkinson’s disease(PD)is a common neurodegenerative disorder in the elderly population.Non-motor symptoms such as anxiety and depression are often subtle,hindering early detection and intervention,yet the... BACKGROUND Parkinson’s disease(PD)is a common neurodegenerative disorder in the elderly population.Non-motor symptoms such as anxiety and depression are often subtle,hindering early detection and intervention,yet they markedly affect quality of life and clinical outcomes.AIM To investigate the prevalence of anxiety and depression in elderly PD patients,identify associated risk factors,and assess their relationship with fatigue severity.METHODS A cross-sectional analysis was conducted in 123 elderly PD patients treated at The Second Rehabilitation Hospital of Shanghai between January 2023 and December 2024.Demographic and clinical data were obtained using standardized questionnaires.Anxiety,depression,and fatigue were assessed using the Beck Anxiety Inventory(BAI),Geriatric Depression Scale(GDS),and Fatigue Scale-14(FS-14),respectively.Binary logistic regression identified risk factors for anxiety and depression,whereas Spearman’s correlation assessed associations with fatigue.RESULTS Anxiety and depression prevalence rates were 64.2%(mean BAI score:19.59±10.92)and 56.1%(mean GDS score:12.82±6.37),respectively.The mean FS-14 total score was 9.46±1.89,comprising physical(5.77±1.51)and mental(3.69±1.20)fatigue components.Significant positive correlations were observed between fatigue scores(total,physical,and mental)and both anxiety and depression(all P<0.05).Univariate analysis revealed statistically significant associations between anxiety/depression and monthly income,disease duration,and disease severity(all P<0.05).Multivariate logistic regression indicated higher anxiety risk in patients with lower monthly income,prolonged disease duration,advanced disease severity,or multimorbidity.Depression risk was elevated in patients with lower monthly income and severe disease,whereas longer disease duration unexpectedly served as a protective factor.CONCLUSION Elderly PD patients show high rates of anxiety and depression,both of which are significantly correlated with fatigue severity.These findings highlight the importance of psychological monitoring and targeted mental health interventions in PD management among the elderly. 展开更多
关键词 Parkinson’s disease ANXIETY DEPRESSION ELDERLY Fatigue severity Psychological status
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Validation of the World Health Organization Disability Assessment Schedule-Ⅱfor Measuring Women With a History of Potentially Life-Threatening Maternal Conditions at Six Months Postpartum in Tigray,Northern Ethiopia
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作者 Fitiwi Tinsae Baykemagn Girmatsion Fisseha Abreha +1 位作者 Yibrah Berhe Zelelow Alemayehu Bayray Kahsay 《Health Care Science》 2026年第1期29-39,共11页
Background:The World Health Organization Disability Assessment Schedule 2.0(WHODAS 2.0)is a popular tool for eval-uating functioning and disability in a range of population demographics and medical situations.However,... Background:The World Health Organization Disability Assessment Schedule 2.0(WHODAS 2.0)is a popular tool for eval-uating functioning and disability in a range of population demographics and medical situations.However,very little is known about the WHODAS 2.0's validity and reliability,particularly when dealing with potentially life-threatening maternal condi-tions(PLTCs).The aim of this study was to evaluate the validity of the WHODAS 2.0 Tigrigna version.Methods:This cross-sectional study was conducted in Tigray,northern Ethiopia,from December 15 to 20,2023.Following translation and back translation,women who had experienced PLTCs during a recent pregnancy,childbirth,or postpartum period were administered the 36-item WHODAS 2.0 in Tigrigna version 6 months after the childbirth.In total,121 women with a history of PLTCs participated.Cronbach′sαwas used to evaluate internal consistency in all six WHODAS 2.0 domains,while Spearman′s correlation coefficient was used to evaluate convergent validity.With confirmatory factor analysis,construct validity was also examined.Results:All domain scores of the Tigrigna version of the WHODAS 2.0 indicated excellent internal consistency(α=0.917-0.978 for 36 items andα=0.874-0.940 for 12 items),while the Cronbach′sαcoefficients for the summary score were 0.981 and 0.952 for 36 and 12 items,respectively.The convergent validity between the 36-item and 12-item WHODAS 2.0 showed a strong correlation between similar constructs(r=0.909-0.981).Conclusion:Despite the small sample limitation,the WHODAS 2.0 tool adapted to the Tigrigna version indicated an acceptable reliability and validity and therefore could be applied to women with a history of PLTCs at 6 months postpartum. 展开更多
关键词 functioning and disability reliability severe maternal morbidity validity WHODAS-Ⅱ
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Research advances in the application of early enteral nutrition in elderly patients with severe acute pancreatitis
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作者 Yue-Fang Gao Fang He 《Frontiers of Nursing》 2026年第1期1-6,共6页
This article reviews research advances in the application of early enteral nutrition(EEN)in elderly patients with severe acute pancreatitis(SAP).Elderly SAP patients are associated with higher mor tality rates due to ... This article reviews research advances in the application of early enteral nutrition(EEN)in elderly patients with severe acute pancreatitis(SAP).Elderly SAP patients are associated with higher mor tality rates due to age-related immune dysfunction,whereas EEN has been demonstrated to improve clinical prognosis,reduce infection and complication rates,and shor ten hospital stays.However,ongoing debates exist regarding the optimal timing,route selection,and complication management of EEN.Through a systematic review of the literature,this study synthesizes current evidence on EEN in elderly SAP populations,critically examines unresolved clinical controversies,and proposes future research priorities to inform evidence-based practice. 展开更多
关键词 early enteral nutrition ELDERLY intervention timing nutrition route review severe acute pancreatitis
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The Brazilian risk assessment severity index score:a novel tool for predicting in-hospital mortality in emergency departments
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作者 Paulo Henrique Reis Negreiros Mariana Rebello Hilgert +3 位作者 Bruno Guerra Maurício de Carvalho Hugo Manuel Paz Morale Gustavo Lenci MarquesFederal University of Paraná(UFPR) 《World Journal of Emergency Medicine》 2026年第2期154-161,共8页
BACKGROUND:Rapid identification of patients at risk of clinical deterioration(in-hospital mortality) in emergency settings is essential for timely and appropriate care.Existing prognostic scores,such as the Acute Phys... BACKGROUND:Rapid identification of patients at risk of clinical deterioration(in-hospital mortality) in emergency settings is essential for timely and appropriate care.Existing prognostic scores,such as the Acute Physiology and Chronic Health Evaluation IV(APACHE IV),Simplified Acute Physiology Score 3(SAPS 3),Sequential Organ Failure Assessment(SOFA),and National Early Warning Score 2(NEWS 2),have limitations in emergency scenarios,particularly in resource-limited settings.We aimed to develop a simple and efficient tool tailored to the Brazilian healthcare system.METHODS:This retrospective,multicenter,cohort study analyzed data from 50,709 adult patients admitted to 12 hospitals in southern and southeastern Brazil between 2019 and 2020.The BRASIL score(Brazilian Risk Assessment Severity Index and Length of stay) was constructed using demographic and clinical variables available at admission.Logistic regression was used to determine the weight of each variable,and each variable was assigned a point value based on its β-coefficient and clinical relevance,with thresholds defined according to established medical cutoffs and statistical performance.The score's predictive accuracy was validated using the area under the receiver operating characteristic curve(AUC) with comparative analysis against NEWS 2.RESULTS:The BRASIL score,including age,sex,respiratory rate,heart rate,oxygen saturation,blood pressure,and body temperature,was derived through variables independently associated with in-hospital mortality in a multicenter cohort.The total score was stratified into three risk categories — low(0–3 points),moderate(4–7 points),and high(>7 points) — using observed inflection points in mortality distribution to optimize discrimination.This stratification demonstrated a stepwise increase in mortality rates across categories and the discriminatory performance,with an overall AUC of 0.743(95% CI:0.726–0.761).Compared to NEWS 2(AUC 0.697,95% CI:0.683–0.711),the BRASIL score offered superior early risk identification,supporting timely clinical decisionmaking and resource allocation in the emergency setting.CONCLUSION:The BRASIL score is a novel tool for predicting in-hospital mortality in emergency departments.Its predictive performance and ease of use suggest that it has the potential to improve patient outcomes. 展开更多
关键词 Cohort study Logistic regression Severity index In-hospital mortality Hospital resource management
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A Case of Severe Trauma with Iliac Vascular Injury was Treated using a Time-Based Chain Approach
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作者 Yazheng Shen Lining He +3 位作者 Huifeng Tang Zhiyong Shi Zhen He Ke Guo 《Journal of Clinical and Nursing Research》 2026年第1期380-386,共7页
Severe trauma often involves complex injuries,leading to high disability and fatality rates.Effective treatment requires prompt and coordinated efforts across multiple disciplines to enhance success rates.Time-based c... Severe trauma often involves complex injuries,leading to high disability and fatality rates.Effective treatment requires prompt and coordinated efforts across multiple disciplines to enhance success rates.Time-based chain rescue is crucial in managing severe trauma.A patient with chest and abdominal injuries and hemorrhagic shock was transferred from an ambulance to our hospital.Our trauma team-initiated pre-hospital first aid,utilized an emergency green channel,and conducted rapid ultrasound,collaborating across disciplines.The patient eventually recovered and was discharged. 展开更多
关键词 Severe trauma Hemorrhagic shock Time point of trauma Chain-type treatment
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Geostationary Satellite–Based Proxy Radar Observations:Expanding Coverage for Storm Tracking
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作者 Yunheng XUE Mengxue XU +4 位作者 Jun LI Bo LI Min MIN Peng ZHANG Ling YANG 《Advances in Atmospheric Sciences》 2026年第2期307-320,共14页
Ground-based radar is the primary means by which severe storms are monitored and tracked;however, due to limited coverage, important data is often missed over ocean and mountainous areas. On the other hand, geostation... Ground-based radar is the primary means by which severe storms are monitored and tracked;however, due to limited coverage, important data is often missed over ocean and mountainous areas. On the other hand, geostationary(GEO)weather satellites provide continuous observations with seamless coverage with advanced imager, despite their limited capability to penetrate clouds. Combining satellite and ground-radar observations could exploit the advantages of both techniques, providing tracking capability close to that of ground radar while maintaining full spatial coverage. This study presents a novel method called Multi-dimensional satellite Observation information for Radar Estimation(MORE) to reconstruct radar composite reflectivity(CREF). Deep learning techniques are important components of MORE for estimating CREF from China's Fengyun-4B(FY-4B) GEO satellite observations. Two models are developed: an infraredonly(IR-Single) model available for all times, and a visible-infrared(VIS+IR) model for daytime applications. These models incorporate multi-dimensional satellite observation information, including temporal, spatial, spectral, and viewing angle information, to enhance the accuracy of radar echo reconstruction. Results demonstrate that the VIS+IR model outperforms the IR-Single model, and both models achieves a root-mean-square error(RMSE) of less than 6 dBZ and a coefficient of determination(R~2) of greater than 0.7. The models effectively reconstruct radar echoes, including strong echoes exceeding 50 dBZ, and show good agreement with precipitation data in radar-blind areas. This study offers a valuable solution for severe weather monitoring and tracking in regions lacking ground-based radar observations, and provides a potential tool for enhanced data assimilation in numerical weather prediction(NWP) models. 展开更多
关键词 radar composite reflectivity FY-4B deep learning severe weather
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Integrated Predictive Nursing Care for a Case of Imported Severe Malignant Malaria with Spontaneous Splenic Rupture
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作者 Na Bai Jing Wu +1 位作者 Lili Tian Wenting Li 《Journal of Clinical and Nursing Research》 2026年第1期181-192,共12页
A case of imported severe falciparum malaria with spontaneous splenic rupture was reported in this paper.The patient,an African migrant worker,developed hemolytic anemia,sepsis,thrombocytopenia,coagulation dysfunction... A case of imported severe falciparum malaria with spontaneous splenic rupture was reported in this paper.The patient,an African migrant worker,developed hemolytic anemia,sepsis,thrombocytopenia,coagulation dysfunction,liver failure,renal insufficiency,electrolyte disturbance and other clinical manifestations after returning to the local area.Plasmodium falciparum was found by peripheral blood smearscopy and was diagnosed as severe falciparum malaria.After standardized anti-malaria treatment,plasma exchange+cytokine adsorption therapy,the establishment of“forewarning-forewarning-prevention-emergency”predictive nursing management model,the establishment of an integrated nursing team,the division of medical care is clear,professional knowledge is complementary,after three months of regular follow-up,the patient has no malaria recurrence,no refire,the function of all organs returned to normal. 展开更多
关键词 Severe falciparum malaria Imported malaria Splenorrhagia Integration of health care Predictive care Plasma exchange Cytokine adsorption
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A Cooperative Hybrid Learning Framework for Automated Dandruff Severity Grading
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作者 Sin-Ye Jhong Hui-Che Hsu +3 位作者 Hsin-Hua Huang Chih-Hsien Hsia Yulius Harjoseputro Yung-Yao Chen 《Computers, Materials & Continua》 2026年第4期2272-2285,共14页
Automated grading of dandruff severity is a clinically significant but challenging task due to the inherent ordinal nature of severity levels and the high prevalence of label noise from subjective expert annotations.S... Automated grading of dandruff severity is a clinically significant but challenging task due to the inherent ordinal nature of severity levels and the high prevalence of label noise from subjective expert annotations.Standard classification methods fail to address these dual challenges,limiting their real-world performance.In this paper,a novel,three-phase training framework is proposed that learns a robust ordinal classifier directly from noisy labels.The approach synergistically combines a rank-based ordinal regression backbone with a cooperative,semi-supervised learning strategy to dynamically partition the data into clean and noisy subsets.A hybrid training objective is then employed,applying a supervised ordinal loss to the clean set.The noisy set is simultaneously trained using a dualobjective that combines a semi-supervised ordinal loss with a parallel,label-agnostic contrastive loss.This design allows themodel to learn fromthe entire noisy subset while using contrastive learning to mitigate the risk of error propagation frompotentially corrupt supervision.Extensive experiments on a new,large-scale,multi-site clinical dataset validate our approach.Themethod achieves state-of-the-art performance with 80.71%accuracy and a 76.86%F1-score,significantly outperforming existing approaches,including a 2.26%improvement over the strongest baseline method.This work provides not only a robust solution for a practical medical imaging problem but also a generalizable framework for other tasks plagued by noisy ordinal labels. 展开更多
关键词 Dandruff severity grading ordinal regression noisy label learning self-supervised learning contrastive learning medical image analysis
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Improving endothelial dysfunction:An important mechanism of traditional Chinese medicine in reducing the occurrence of severe dengue
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作者 Jiao Tang Si-Qi Li +3 位作者 Yuan-Yuan Chen De-Hong Ma Wei-Bo Wen Huan-Tian Cui 《Infectious Diseases Research》 2026年第1期10-12,共3页
Dengue fever is an acute infectious disease caused by the dengue virus and transmitted by mosquito vectors[1].Its clinical manifestations include high fever,headache,muscle and joint pain,and rash.It holds a significa... Dengue fever is an acute infectious disease caused by the dengue virus and transmitted by mosquito vectors[1].Its clinical manifestations include high fever,headache,muscle and joint pain,and rash.It holds a significant position in global public health.In recent years,its incidence has continued to rise worldwide[2],making it one of the major diseases threatening human health.The disease course of dengue fever is divided into three typical phases:the acute febrile phase,the critical phase,and the recovery phase.While most patients experience mild symptoms,some may progress to severe dengue and potentially fatal outcomes if not promptly and effectively treated during the critical phase. 展开更多
关键词 mosquito vectors its dengue fever dengue virus acute infectious disease severe dengue acute febrile endothelial dysfunction traditional chinese medicine
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Circulation Patterns and Dynamic Drivers of Persistent Severe Rainfall over South China and the Middle-to-Lower Yangtze River Basin during 2012-21
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作者 Yongjia ZHANG Donghai WANG +1 位作者 Lingdong HUANG Enguang LI 《Advances in Atmospheric Sciences》 2026年第5期981-999,共19页
Persistent severe rainfall(PSR)events,defined as regional-scale rainfall processes with daily precipitation no less than 50 mm for at least three consecutive days,frequently occur over South China(SC)and the middle-to... Persistent severe rainfall(PSR)events,defined as regional-scale rainfall processes with daily precipitation no less than 50 mm for at least three consecutive days,frequently occur over South China(SC)and the middle-to-lower Yangtze River Basin(MLYRB),with distinct dynamic mechanisms and moisture conditions in the two regions.Based on daily precipitation observations from China’s national meteorological stations and ERA5 reanalysis during 2012-21,this study investigates the spatiotemporal distribution of PSR events in SC and MLYRB and their associated three-dimensional circulation dynamics.The analysis integrates diagnostics of 200 hPa wave activity flux,perturbation streamfunction,500 hPa geopotential height,850 hPa wind fields,and integrated water vapor transport.Results show that PSR events in SC mainly occur during May-June,with rainfall centers over coastal and central Guangdong and Guangxi.In contrast,MLYRB events peak during June-July,with a banded rainfall pattern along the middle-to-lower Yangtze River.Dynamical diagnostics indicate that,in SC,sustained northwest-southeast propagation of 200 hPa disturbances,the southward shift of the 500 hPa trough,and steady subtropical high maintenance provide continuous dynamical support.Concurrently,strong and persistent 850 hPa southwesterlies and long-lasting moisture transport form favorable moisture conditions.In contrast,MLYRB events are marked by rapid phase transitions of 200 hPa streamfunction anomalies and northward-westward expansion of the 500 hPa subtropical high,triggering intense rainfall development.Simultaneously,abrupt enhancement of 850 hPa southwesterlies and rapid formation of a southwest moisture corridor ensure abundant and timely moisture supply,facilitating PSR onset. 展开更多
关键词 persistent severe rainfall wave activity flux streamfunction anomalies integrated water vapor transport
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Integrating bulk and single-cell transcriptome profiling to uncover diagnostic biomarkers and regulatory mechanisms of oxidative stress in spinal cord injury
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作者 Jianfeng Li Kuileung Tong +9 位作者 Jiaxiang Zhou Shiming Li Zhongyuan He Fuan Wang Hongkun Chen Haizhen Li Gang Cheng Junhong Li Zhiyu Zhou Manman Gao 《Neural Regeneration Research》 2026年第6期2643-2657,共15页
Oxidative stress significantly contributes to secondary damage after spinal cord injury.Despite its importance,research on oxidative stress in spinal cord injury remains limited.Investigating the expression and regula... Oxidative stress significantly contributes to secondary damage after spinal cord injury.Despite its importance,research on oxidative stress in spinal cord injury remains limited.Investigating the expression and regulation of oxidative stress-related genes could enhance the diagnosis and treatment of spinal cord injury.In this study,we analyzed the sequencing data of human blood samples and injured mouse spinal cord tissue that were sourced from GEO databases and identified diagnostic biomarkers associated with the severity of spinal cord injury.We also explored the expression patterns of oxidative stress-related genes,potential regulatory mechanisms,and therapeutic drugs.To validate our findings,we performed immunofluorescence and quantitative polymerase chain reaction to assess gene expression in the injured spinal cord.Our results revealed biomarkers associated with oxidative stress and immune responses across different levels of spinal cord injury in humans.We identified differentially expressed oxidative stress-related genes and key hub genes in injured mouse spinal cord tissue and revealed their temporal expression patterns at both the tissue and single-cell levels.We also clarified the signaling pathways associated with oxidative stress and identified ligand-receptor pairs among various cell types at different time points after injury.Furthermore,we discovered microRNAs,long non-coding RNAs,and transcription factors that regulate these hub genes and revealed their roles in modulating gene expression at various stages after spinal cord injury.We also identified drugs targeting these hub genes.The findings from this study not only aid in identifying diagnostic biomarkers that reflect the severity of spinal cord injury,but also provide insights into the expression dynamics of oxidative stress-related genes.In addition,the study reveals potential regulatory mechanisms and identifies potential drugs to treat patients with spinal cord injury. 展开更多
关键词 bioinformatics analysis diagnostic biomarker drug intervention expression characteristics immune change oxidative stress regulation mechanism severity of the illness spinal cord injury spinal cord repair
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A humanized NOG-EXL mouse model for producing severe fever with thrombocytopenia syndrome virus-reactive human antibodies
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作者 Dong Hoon Lee Jiyeong Bae +9 位作者 Sumi Kim Chan Young Song Jung Hyu Shin Eun Hee Kim Chan Ho Jang Young-sun Yun Dong-sook Lee Hyuk Chu Jang-Hoon Choi Chan Woo Kim 《Animal Models and Experimental Medicine》 2026年第2期378-388,共11页
Background:Humanized mouse models are essential for studying the human immune response and antibody development.However,conventional models show limited B cell maturation and antigen-specific humoral responses.To over... Background:Humanized mouse models are essential for studying the human immune response and antibody development.However,conventional models show limited B cell maturation and antigen-specific humoral responses.To overcome these limitations,we used the NOG-EXL mice expressing human interleukin 3(IL-3)and granulocyte-macrophage colony-stimulating factor(GM-CSF)to enhance myeloid and B-cell lineage differentiation.Methods:Human CD34^(+)hematopoietic stem cells(HSC)were transplanted into NOG-EXL mice to produce humanized immune systems.After immune cell reconstitution was confirmed across 12 weeks,the mice were immunized twice with inactivated severe fever with thrombocytopenia syndrome virus(SFTSV)antigens.Peripheral blood mononuclear cells and splenocytes were analyzed using multicolor flow cytometry to assess human immune cell subsets.Antigen-specific immunoglobulin G(IgG)production was quantified using enzyme-linked immunosorbent assay(ELISA),and virus-specific B cells were isolated using antigen-labeled recombinant protein probes.Results:Twelve weeks after transplantation of HSCs into NOG-EXL mice,they exhibited robust engraftment of human leukocytes,including T,B,and dendritic cells,compared to NOG mice.Unlike NOG mice,humanized NOG-EXL mice exhibited an increase in human IgG levels,indicating the production of human antibody responses to antigens.Humanized NOG-EXL mice were immunized twice every 2 weeks with inactivated SFTSV,and antigen-specific human antibodies against the virus were detected in the mouse sera by ELISA.Sera from SFTSV-immunized humanized mice demonstrated neutralizing activity against SFTSV,confirming the induction of functional virus-specific neutralizing antibodies.Antigen-binding IgG-positive human B cells were isolated from mouse splenocytes using recombinant protein probes.Conclusion:This model provides a valuable platform for evaluating humoral immunity and isolating B cells using high-affinity human monoclonal antibodies without genetic engineering. 展开更多
关键词 human immunoglobulin G(IgG) humanized mouse severe fever with thrombocytopenia syndrome virus(SFTSV)
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Extracellular nucleotides mediate viral central nervous system infections:Key alarmins of neuroinflammation and neurodegeneration
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作者 Raissa Leite-Aguiar Elaine Paiva-Pereira +2 位作者 Robson Coutinho-Silva Claudia Pinto Figueiredo Luiz Eduardo Baggio Savio 《Neural Regeneration Research》 2026年第5期1890-1898,共9页
Recent increases in infectious diseases affecting the central nervous system have raised concerns about their role in neuroinflammation and neurodegeneration.Viral pathogens or their products can invade the central ne... Recent increases in infectious diseases affecting the central nervous system have raised concerns about their role in neuroinflammation and neurodegeneration.Viral pathogens or their products can invade the central nervous system and cause damage,leading to meningitis,encephalitis,meningoencephalitis,myelitis,or post-infectious demyelinating diseases.Although neuroinflammation initially has a protective function,chronic inflammation can contribute to the development of neurodegenerative diseases.Mechanisms such as protein aggregation and cellular disturbances are implicated with specific viruses such as herpes simplex virus type 1 and Epstein-Barr virus being associated with Alzheimer's disease and multiple sclerosis,respectively.Extracellular nucleotides,particularly adenosine triphosphate and its metabolites are released from activated,infected,and dying cells,acting as alarmins mediating neuroinflammation and neurodegeneration.When viruses infect central nervous system cells,adenosine triphosphate is released as an alarmin,triggering inflammatory responses.This process is mediated by purinergic receptors,divided into two families:P1,which responds to adenosine,and P2,activated by adenosine triphosphate and other nucleotides.This review highlights how specific viruses,such as human immunodeficiency virus type 1,Theiler's murine encephalomyelitis virus,herpes simplex virus type 1,Epstein-Barr virus,dengue virus,Zika virus,and severe acute respiratory syndrome coronavirus 2,can initiate inflammatory responses through the release of extracellular nucleotides,particularly adenosine triphosphate,which act as critical mediators in the progression of neuroinflammation and neurodegenerative disorders.A better understanding of purinergic signaling pathways in these diseases may suggest new potential therapeutic strategies for targeting neuroinflammation to mitigate the long-term consequences of viral infections in the central nervous system. 展开更多
关键词 adenosine triphosphate DENGUE Epstein-Barr virus herpes simplex virus type 1 human immunodeficiency virus type 1 neurodegenerative diseases neurotropic infections purinergic signaling severe acute respiratory syndrome coronavirus 2 virus Zika
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Prone position ventilation in severe acute pancreatitis patients with concurrent acute respiratory distress syndrome and abdominal compartment syndrome:a case report
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作者 Jiaping Yu Yun Ji Haifei Lu 《World Journal of Emergency Medicine》 2026年第1期98-100,共3页
Severe acute pancreatitis(SAP)can induce acute respiratory distress syndrome(ARDS)and abdominal compartment syndrome(ACS).Although prone position ventilation(PPV)can improve outcomes in patients with ARDS,there is sig... Severe acute pancreatitis(SAP)can induce acute respiratory distress syndrome(ARDS)and abdominal compartment syndrome(ACS).Although prone position ventilation(PPV)can improve outcomes in patients with ARDS,there is significant controversy regarding its concurrent use with ACS owing to concerns of increased risk of intra-abdominal pressure(IAP).[1]We present a case of successful PPV application without adverse eff ects. 展开更多
关键词 severe acute pancreatitis sap can prone position ventilation ppv can acute respiratory distress syndrome abdominal compartment syndrome abdominal compartment syndrome acs prone position ventilation intra abdominal pressure acute respiratory distress syndrome ards
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SEVERANCE PAYS
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作者 刘珏 《The World of Chinese》 2017年第3期74-76,共3页
With'fake divorces'proving a popular loophole for gaming the housing market,we ask experts if these arrangements guarantee an even split中国式'假离婚'背后的复杂真相Even by Chinese standards,it was an e... With'fake divorces'proving a popular loophole for gaming the housing market,we ask experts if these arrangements guarantee an even split中国式'假离婚'背后的复杂真相Even by Chinese standards,it was an eye-opening figure.This March,in the small village of Jiangbei,Jiangsu province,some 160 couples filed for divorce at the same time. 展开更多
关键词 severance PAYS REAL
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Correlation analyse between thyroid hormone levels and severity of schizophrenia symptoms 被引量:2
20
作者 Qi-Hui Jiang Wei-Dong Gong 《World Journal of Psychiatry》 SCIE 2025年第1期63-71,共9页
BACKGROUND The imbalance of hormone levels in the body is closely related to the occurrence and progression of schizophrenia,especially thyroid hormones.AIM To study the relationship between triiodothyronine(T3),thyro... BACKGROUND The imbalance of hormone levels in the body is closely related to the occurrence and progression of schizophrenia,especially thyroid hormones.AIM To study the relationship between triiodothyronine(T3),thyroxine(T4),free T3(FT3),free T4(FT4),thyroid stimulating hormone(TSH)and schizophrenia.METHODS In this study,100 schizophrenia patients were selected from our hospital between April 2022 and April 2024.Their clinical data were analyzed retrospectively.Based on the Positive and Negative Syndrome Scale(PANSS)score,patients were divided into mild(1-3 points,n=39),moderate(4 points,n=45),and severe groups(5-7 points,n=16).Additionally,55 healthy individuals served as a control group.Venous blood samples were collected to measure T3,T4,FT3,FT4,TSH,and cortisol concentrations,analyzing their relationship with PANSS scores.RESULTS The serum levels of T3,FT3,FT4,TSH and cortisol in the schizophrenia group were lower than those in the control group(P<0.05).With the increase of the severity of the disease,the concentrations of T3 and T4 decreased,while the con-centrations of TSH and cortisol increased(P<0.05).The concentrations of TSH and cortisol were positively correlated with the PANSS score,while T3 and T4 were negatively correlated with the PANSS score(P<0.05).The receiver ope-rating characteristic curve results showed that T3,T4,TSH,and cortisol had good efficacy in the diagnosis of schizophrenia.Logistic results showed that decreased T3 level,decreased T4 level,decreased TSH level and increased cortisol level may be independent risk factors for schizophrenia.CONCLUSION Thyroid hormone levels are associated with the severity of schizophrenia symptoms,which can provide new solutions for the diagnosis and treatment of schizophrenia. 展开更多
关键词 Thyroid hormone SCHIZOPHRENIA Symptom severity Positive and Negative Syndrome Scale score CORTISOL
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