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Soil Phosphorus Dynamics as Influenced by Land Use Changes in Humid Tropical, Southwest China

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Pedosphere 2005年第1期15卷 24-32页

作者： YANGJing-Cheng HUANGJian-hui PANQing-min tangJian-Wei HANXing-Guo LaboratoryofQuantitativeVegetationEcology InstituteofBotanyChineseAcademyofSciencesBeijing1000g3China LaboratoryofQuantitativeVegetationEcology InstituteofBotanyChineseAcademyofSciencesBeijing1000g3China／／BeijingNaturalHistoryMuseumBeijing100050China XishuangbannaTropicalBotanicalGarden ChineseAcademyofSciencesYunnan666303China

Land use changes can greatly influence soil phosphorus (P) dynamics, especially when converting native forests to agricultural land. Soils in Xishuangbanna, which is one of southwest China s tropical areas that maintain fragments of primary forests, were studied to a) evaluate the effect of two common land use changes, conversion of forests to agricultural land or rubber tree plantation, on the dynamics of available P and total P in bulk soils as well as total P in particle size fractions; b) assess the rel…

关键词： BRAZILIAN AMAZON ORGANIC-MATTER NUTRIENT POOLS DEFORESTATION FRACTIONS PHOSPHATE BIOMASS LOSSES FIRE

有机锡低聚倍半硅氧烷催化固化双酚A型苯并噁嗪树脂结构与性能研究

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高分子学报 2019年第1期50卷 55-61,I0003页

作者：包涵张月唐慧敏余鼎声徐日炜北京化工大学碳纤维及功能高分子教育部重点实验室北京100029

利用八异丁基二硅烷醇与二丁基二氯化锡封端反应合成了有机锡倍半硅氧烷(DOSn-Bu),采用傅里叶红外光谱(FTIR)、核磁共振氢谱(1H-NMR)、X-射线单晶衍射等方法证实了化合物的分子结构.随后利用溶液共混法制备了系列双酚A-苯胺型苯并噁嗪(B... 详细信息

利用八异丁基二硅烷醇与二丁基二氯化锡封端反应合成了有机锡倍半硅氧烷(DOSn-Bu),采用傅里叶红外光谱(FTIR)、核磁共振氢谱(1H-NMR)、X-射线单晶衍射等方法证实了化合物的分子结构.随后利用溶液共混法制备了系列双酚A-苯胺型苯并噁嗪(BA-a-Bz)/DOSn-Bu杂化树脂.从杂化树脂分段固化的FTIR图中可看出,噁嗪环在160～180°C发生开环. DSC结果表明:DOSn-Bu的催化作用使BA-a-Bz的起始固化温度下降了约50°C、峰值固化温度下降了约30°C,动态力学热分析(DMTA)、热失重(TGA)测试结果也表明杂化材料的储能模量和残炭率有所提高.从扫描电镜元素分布图(SEM mapping)看出,催化剂在体系中分散均一,与树脂基体相容性良好且断面SEM图像显示杂化后材料的粗糙度比纯噁嗪树脂的增加.

关键词：有机锡倍半硅氧烷苯并噁嗪催化固化杂化材料

Targeted gene sequencing and bioinformatics analysis of patients with gallbladder neuroendocrine carcinoma:A case report

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 239-251页

作者： Yun-Chuan Yang Zhi-Tao Chen Da-Long Wan hui tang Mu-Lin Liu Department of Medical College Jinan UniversityGuangzhou 510000Guangdong ProvinceChina Department of General Surgery The First Affiliated Hospital of Bengbu Medical UniversityBengbu 233000Anhui ProvinceChina Department of Hepatobiliary Surgery Shulan(Hangzhou)Hospital Affiliated to Zhejiang Shuren University Shulan International Medical CollegeHangzhou 310022Zhejiang ProvinceChina Department of Hepatobiliary and Pancreatic Surgery The First Affiliated HospitalCollege of MedicineZhejiang UniversityHangzhou 310003Zhejiang ProvinceChina Department of Pathology The First Affiliated Hospital of Medical School of Zhejiang UniversityHangzhou 310000Zhejiang ProvinceChina

BACKGROUND Gallbladder neuroendocrine carcinoma(NEC)represents a subtype of gallbladder malignancies characterized by a low incidence,aggressive nature,and poor *** its clinical severity,the genetic alterations,mechanisms,and signaling pathways underlying gallbladder NEC remain *** SUMMARY This case study presents a rare instance of primary gallbladder NEC in a 73-year-old female patient,who underwent a radical cholecystectomy with hepatic hilar lymphadenectomy and resection of liver segments IV-B and *** gene sequencing and bioinformatics analysis tools,including STRING,GeneMANIA,Metascape,TRRUST,Sangerbox,cBioPortal and GSCA,were used to analyze the biological functions and features of mutated genes in gallbladder *** mutations(APC,ARID2,IFNA6,KEAP1,RB1,SMAD4,TP53,BTK,GATA1,GNAS,and PRDM3)were identified,and the tumor mutation burden was determined to be 9.52 muts/Mb via targeted gene sequencing.A protein-protein interaction network showed significant interactions among the twelve mutated *** Ontology and Kyoto Encyclopedia of Genes and Genomes analyses were used to assess mutation functions and *** results revealed 40 tumor-related pathways.A key regulatory factor for gallbladder NEC-related genes was identified,and its biological functions and features were compared with those of gallbladder *** Gallbladder NEC requires standardized *** with other gallbladder carcinomas revealed clinical phenotypes,molecular alterations,functional characteristics,and enriched pathways.

关键词： Gallbladder neuroendocrine carcinoma Targeted-gene sequencing Bioinformatics analysis case report Immunocytochemistry Case report

Prevalence of Helicobacter pylori infection in Chinese military personnel:A cross-sectional,multicenter-based study

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World Journal of Gastroenterology 2025年第3期31卷 42-49页

作者： Han-Chen min Chun-Yan Zhang Fang-Yu Wang Xiao-hui Yu Shan-Hong tang Hong-Wu Zhu Ya-Gang Zhao Ji-Luo Liu Jian Wang Jing-Han Guo Xiao-Mei Zhang Yun-Sheng Yang Chinese People’s Liberation Army Medical School Chinese People’s Liberation Army General HospitalBeijing 100853China Department of Gastroenterology and Hepatology The First Medical CenterChinese People’s Liberation Army General HospitalBeijing 100853China Sixth Healthcare Department The Second Medical CenterChinese People’s Liberation Army General HospitalBeijing 100853China Department of Gastroenterology The 940th Hospital of Joint Logistic Support Force of Chinese People’s Liberation ArmyLanzhou 730050Gansu ProvinceChina Department of Gastroenterology General Hospital of Western Theater CommandChengdu 610011Sichuan ProvinceChina Department of Gastroenterology General Hospital of Southern Theater CommandGuangzhou 510010Guangdong ProvinceChina Department of Epidemiology Naval Medical UniversityShanghai 200433China School of Medicine Nankai UniversityTianjin 300071China National Clinical Research Center for Geriatric Diseases Chinese People’s Liberation Army General HospitalBeijing 100853China

BACKGROUND Helicobacter pylori(***)infection is a prevalent disease encountered in military internal medicine and recognized as the main cause of dyspepsia,gastritis,and peptic ulcer,which are common diseases in military *** guidelines in China state all patients with evidence of active infection with *** are offered ***,the prevalence of *** infection and its regional distribution in the military population remain unclear,which hinders effective prevention and treatment *** the prevalence of *** infection in the military population will aid in the development of customized strategies to better manage this infectious *** To investigate the prevalence of *** infection in the Chinese military population in different geographic *** This multicenter,retrospective study included 22421 individuals from five tertiary hospitals located in north,east,southwest,and northwest cities of *** infection was identified using the urea breath test,which had been performed between January 2020 and December *** Of the 22421 military service members,7416(33.1%)were urea breath *** highest prevalence of *** was in the 30-39 years age group for military personnel,with an infection rate of 34.9%.The majority of infected subjects were younger than 40-years-old,accounting for 70.4%of the infected *** individuals serviced in Lanzhou and Chengdu showed a higher infection prevalence than those in Beijing,Nanjing,and Guangzhou,with prevalence rates of 44.3%,37.9%,29.0%,31.1%,and 32.3%,*** *** infection remains a common infectious disease among military personnel in China and has a relatively high prevalence rate in northwest China.

关键词： Helicobacter pylori Prevalence Military personnel Urea breath test Multicenter study

The interaction between KIF21A and KANK1 regulates dendritic morphology and synapse plasticity in neurons

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Neural Regeneration Research 2025年第1期20卷 209-223页

作者： Shi-Yan Sun Lingyun Nie Jing Zhang Xue Fang Hongmei Luo Chuanhai Fu Zhiyi Wei Ai-hui tang Hefei National Research Center for Physical Sciences at the Microscale CAS Key Laboratory of Brain Function and DiseaseMinistry of Education Key Laboratory for Membrane-less Organelles and Cellular DynamicsDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui ProvinceChina Institute of Artificial Intelligence Hefei Comprehensive National Science CenterHefeiAnhui ProvinceChina CAS Center for Excellence in Molecular Cell Sciences Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui ProvinceChina Department of Neurobiology School of Life SciencesSouthern University of Science and TechnologyShenzhenGuangdong ProvinceChina Brain Research Center Southern University of Science and TechnologyShenzhenGuangdong ProvinceChina

Morphological alterations in dendritic spines have been linked to changes in functional communication between neurons that affect learning and ***-4 KIF21A helps organize the microtubule-actin network at the cell cortex by interacting with KANK1;however,whether KIF21A modulates dendritic structure and function in neurons remains *** this study,we found that KIF21A was distributed in a subset of dendritic spines,and that these KIF21A-positive spines were larger and more structurally plastic than KIF21A-negative ***,the interaction between KIF21A and KANK1 was found to be critical for dendritic spine morphogenesis and synaptic *** of either KIF21A or KANK1 inhibited dendritic spine morphogenesis and dendritic branching,and these deficits were fully rescued by coexpressing full-length KIF21A or KANK1,but not by proteins with mutations disrupting direct binding between KIF21A and KANK1 or binding between KANK1 and *** down KIF21A in the hippocampus of rats inhibited the amplitudes of long-term potentiation induced by high-frequency stimulation and negatively impacted the animals’cognitive *** together,our findings demonstrate the function of KIF21A in modulating spine morphology and provide insight into its role in synaptic function.

关键词： actin cytoskeleton dendrite KANK1 KIF21A microtubule spine morphology spine synaptic plasticity talin1

Aquaporin-4-IgG-seropositive neuromyelitis optica spectrum disorders:progress of experimental models based on disease pathogenesis

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Neural Regeneration Research 2025年第2期20卷 354-365页

作者： Li Xu huiming Xu Changyong tang Department of Neurology The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdong ProvinceChina

Neuromyelitis optica spectrum disorders are neuroinflammatory demyelinating disorders that lead to permanent visual loss and motor *** date,no effective treatment exists as the exact causative mechanism remains ***,experimental models of neuromyelitis optica spectrum disorders are essential for exploring its pathogenesis and in screening for therapeutic *** most patients with neuromyelitis optica spectrum disorders are seropositive for IgG autoantibodies against aquaporin-4,which is highly expressed on the membrane of astrocyte endfeet,most current experimental models are based on aquaporin-4-IgG that initially targets *** experimental models have successfully simulated many pathological features of neuromyelitis optica spectrum disorders,such as aquaporin-4 loss,astrocytopathy,granulocyte and macrophage infiltration,complement activation,demyelination,and neuronal loss;however,they do not fully capture the pathological process of human neuromyelitis optica spectrum *** this review,we summarize the currently known pathogenic mechanisms and the development of associated experimental models in vitro,ex vivo,and in vivo for neuromyelitis optica spectrum disorders,suggest potential pathogenic mechanisms for further investigation,and provide guidance on experimental model *** addition,this review summarizes the latest information on pathologies and therapies for neuromyelitis optica spectrum disorders based on experimental models of aquaporin-4-IgG-seropositive neuromyelitis optica spectrum disorders,offering further therapeutic targets and a theoretical basis for clinical trials.

关键词： aquaporin-4 experimental model neuromyelitis optica spectrum disorder pathogenesis

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淀粉基胶黏剂鸡毛纤维板的制备工艺优化

包装工程 2017年第19期38卷 52-56页

作者：张慧敏唐亚丽卢立新王军丘晓琳江南大学无锡214100 江苏省食品先进制造装备技术重点实验室无锡214100

目的优化以可溶性淀粉为胶黏剂、羽毛纤维为基材的板材制备工艺,并研究其性能特征。方法通过正交实验等研究板材含水率、施胶量和热压温度对鸡毛纤维板力学性能的影响,确定其优化制备工艺,并通过傅里叶红外光谱研究其板材成型机理。结... 详细信息

目的优化以可溶性淀粉为胶黏剂、羽毛纤维为基材的板材制备工艺,并研究其性能特征。方法通过正交实验等研究板材含水率、施胶量和热压温度对鸡毛纤维板力学性能的影响,确定其优化制备工艺,并通过傅里叶红外光谱研究其板材成型机理。结果淀粉基胶黏剂鸡毛纤维板的优化制备工艺中施胶量为250 kg/m3,鸡毛纤维板坯含水率为15%,热压温度为150℃。施胶量是最大影响因素,随着施胶量的增加,鸡毛纤维板的内结合强度、静曲强度、弹性模量和24 h吸水厚度膨胀率逐渐增大,当施胶量为260 kg/m3时,纤维板内结合强度、静曲强度、弹性模量和24 h吸水厚度膨胀率分别为0.69 MPa,20.48MPa,2675 MPa和10.23%。淀粉含量越高,纤维板吸水性越强。涂布石蜡后其吸水性能显著降低,由未涂布石蜡时的109.89%降低到54.81%。结论将羽毛制作为轻质纤维板材料具有一定的可行性。

关键词：可溶性淀粉鸡毛纤维石蜡力学性能

Crystallization behavior of plasma-sprayed lanthanide magnesium hexaaluminate coatings

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International Journal of minerals,Metallurgy and Materials 2014年第12期21卷 1247-1253页

作者： Liang-liang Huang hui-min Meng Jing tang Corrosion and Protection Center University of Science and Technology Beijing

LaMgAl11O19 thermal barrier coatings （TBCs） were prepared by atmospheric plasma spraying. The crystallization behavior of the coatings and the synthesis mechanism of LaMgAl11O19 powders were researched. The results showed that the plasma-sprayed coatings conmined some amorphous phase, and LaMgAl11O19 powders were partially decomposed into Al2O3, LaAlO3, and MgAl2O4 in the plasma spraying process. The amorphous phase was reerystallized at a temperature of approximately 1174.9℃, at which level the decomposed Al2O3, LaAl2O3, and MgAl2O4 reacted again. The resynthesis temperature of LaMgAl11O19 in the plasma-sprayed coatings was lower than that of LaMgAl11O19 in the original raw powders. The synthesis mechanism of LaMgAl11O19 powders can be summarized as follows： during the first part of the overall reaction, La2O3 reacts with Al2O3 to form LaAl2O3 at approximately 900℃, and then LaAl2O3 further reacts with Al2O3 and MgAl2O4 to produce LaMgAl11O19 at approximately 1200℃.

关键词： thermal barrier coatings hexaaluminates plasma spraying crystallization

Soluble epoxide hydrolase:a next-generation drug target for Alzheimer's disease and related dementias

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Neural Regeneration Research 2025年第9期20卷 2585-2586页

作者： Andrew Gregory Chengyun tang Fan Fan Department of Physiology Medical College of GeorgiaAugusta UniversityAugustaGAUSA

Alzheimer's disease(AD)and Alzheimer's diseaserelated dementias(ADRD)represent a significant public health challenge,with projections indicating a substantial increase in affected individuals due to the aging global *** the World Health Organization,AD/ADRD has affected more than 55 million individuals worldwide,with an additional 10 million cases diagnosed each year.

关键词： Alzheimer population drug