检索结果-南通市图书馆

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

家族性胃癌的研究进展

中国肿瘤临床 2000年第10期27卷 789-791页

作者：宋永茂郑树浙江大学肿瘤研究所杭州市310009

胃癌是常见的消化道恶性肿瘤,研究表明10%的胃癌表现为家族聚集性[1,2],Videback和Mosbech随访302例胃癌患者的亲属,发现其胃癌发病率较无胃癌家族史者的发病率高4倍[3].细胞遗传学的研究已发现原发性胃癌存在简单染色体数目改变.其中8... 详细信息

胃癌是常见的消化道恶性肿瘤,研究表明10%的胃癌表现为家族聚集性[1,2],Videback和Mosbech随访302例胃癌患者的亲属,发现其胃癌发病率较无胃癌家族史者的发病率高4倍[3].细胞遗传学的研究已发现原发性胃癌存在简单染色体数目改变.其中8号和9号染色体三体可能构成胃癌的一个细胞遗传学亚型;另外原发性胃癌尚存在染色体复杂结构畸变,最常见为7q32-qter片断的缺失[4].

关键词：家族性胃癌微卫星不稳定性病理特征

Tectonic modes of mantle convection and their implications for Earth's tectonic evolution based on three-dimensional numerical simulations

在线全文

学校读者我要写书评

暂无评论

Science China Earth Sciences 2025年第1期68卷 270-296页

作者： song XIANG Jinshui HUANG Bingcheng WU School of Earth and Space Sciences University of Science and Technology of China CAS Center of Excellence in Comparative Planetary Studies

Five tectonic modes of mantle convection are obtained and analyzed with three-dimensional numerical models in a spherical shell domain. The five tectonic convective modes are non-plate mobile-lid, plate-like mobile-lid, episodic plate-like mobile-lid, episodic stagnant-lid, and stagnant-lid convective modes, respectively. The typical characteristics of these five tectonic modes and their numerical classification criteria based on plateness, mobility, and their standard deviations are presented and discussed. The results show that the yield stress of the lithosphere has profound effects on the tectonic convective *** the gradual increase of yield stress, the tectonic mode of mantle convection changes from one to another sequentially through the aforementioned five modes. Additionally, as the Rayleigh number increases, the range of yield stress for the platelike mobile-lid convective mode decreases, and the dimensionless transition stress between different tectonic modes ***, the dimensional transition stress between the non-plate mobile-lid convective mode and plate-like mobile-lid convective mode increases with the increase of Rayleigh number, but decreases between other tectonic modes. Furthermore, we find that the transition stress between different tectonic modes is inversely proportional to the internal heating rate, with the transition stress decreasing as the internal heating rate increases. The fitting analysis of the transition stress between tectonic modes shows that Earth's current plate tectonics correspond to a lithospheric yield stress of 150–250 MPa, which aligns with the strength of serpentinized mantle rock determined by experimental petrography. If the Archean mantle was 300°C warmer than it is today, then the Earth was in an episodic stagnant-lid convective mode. The tectonic evolution of the Earth's surface is closely related to the lithospheric strength and the process of thermal evolution. If the lithospheric strength w

关键词： Tectonic mode of mantle convection Plate-like mobile-lid convection Episodic plate-like mobile-lid convection Episodic stagnant-lid convection Plate tectonics and tectonic evolution of the Earth

抗肿瘤坏死因子-α抗体治疗狭窄型克罗恩病的争议与共识

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

中华消化外科杂志 2018年第9期17卷 905-909页

作者：余乔李清海宋永茂徐栋陈焰浙江大学医学院附属第二医院消化内科杭州310000 浙江大学医学院附属第二医院影像科杭州310000 浙江大学医学院附属第二医院肿瘤外科杭州310000

抗肿瘤坏死因子（TNF）-α单克隆抗体的出现为炎症性肠病（IBD）患者带来了福音。然而．目前关于抗TNF-α制剂对于狭窄型克罗恩病的用药指征和确切效果均存在争议。有研究者认为狭窄型克罗恩病患者使用生物制剂后出现肠梗阻和肠穿孔的... 详细信息

抗肿瘤坏死因子（TNF）-α单克隆抗体的出现为炎症性肠病（IBD）患者带来了福音。然而．目前关于抗TNF-α制剂对于狭窄型克罗恩病的用药指征和确切效果均存在争议。有研究者认为狭窄型克罗恩病患者使用生物制剂后出现肠梗阻和肠穿孔的风险增高：但也有观点认为两者之间并无因果关系。其根本问题在于抗TNF-α制剂只针对炎症，不能抗纤维化乃至改变克罗恩病的远期结局。为了避免和预防肠梗阻和肠穿孔发生，临床IBD医师使用抗TNF-α制剂治疗前，须评估肠道狭窄的病理学组成成分和类型，准确把握用药适应证和时机；并推进研发特异性抗肠道纤维化药物治疗狭窄型克罗恩病。

关键词：克罗恩病抗肿瘤坏死因子-α 英夫利昔单克隆抗体肠道狭窄

Molecular dynamics simulations of helium transport through inorganic mineral nanopores

在线全文

学校读者我要写书评

暂无评论

Science China Earth Sciences 2025年第1期68卷 237-252页

作者： Dandan song Ping GUAN Chi ZHANG Jiahao REN School of Earth and Space Sciences Peking University

Helium transport through nanoscale inorganic mineral pores and pore throats is essential for its overall migration. To elucidate helium's transport dynamics within nanopores, we employed equilibrium and non-equilibrium molecular dynamics simulations to investigate helium's static self-diffusion and pressure-driven flow in quartz slit-shaped nanopores. We also introduced water and various gases, including hydrogen, methane, ethane, nitrogen, and carbon dioxide, into the nanopores to assess their influence on helium transport. Our findings indicate minimal helium adsorption on quartz pore surfaces. Under conditions where the pore size is less than 5 nm and the pressure under 10 MPa, environmental factors markedly influence helium diffusion. Large pore sizes, high temperatures, and low gas pressures enhance helium desorption and facilitate faster diffusion. We observed a positive correlation between helium flow velocity and factors such as pore size, pressure gradient, and surface smoothness of the pores. Notably, the presence of pore water and carrier gases in quartz nanopores, which diffuse more slowly than helium, tends to reduce helium surface adsorption and slow its diffusion. Among the carrier gases studied, nitrogen showed similar adsorption capacity, diffusivity, and stability to helium, while carbon dioxide displayed the highest adsorption capacity and the slowest diffusion rate, markedly differing from helium. Based on the simulation results, we concluded that water and carrier gases primarily function as transport mediums in helium migration, moving together with helium. Nitrogen, which shares similar properties with helium, effectively assists in this co-migration process. Conversely, carbon dioxide, due to its high adsorption capacity and slow diffusion, tends to be lost during co-migration. As a result, gas reservoirs with high nitrogen levels and low carbon dioxide levels are more likely to have higher helium concentrations. Additionally, the smaller por

关键词： Helium transport Slit nanopores Molecular dynamics simulations Diffusion Flow carriers

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

结直肠癌肝转移的转化治疗

中华肝胆外科杂志 2020年第7期26卷 493-495页

作者：陈佳琦翁姗姗胡涵光宋永茂丁克峰袁瑛浙江大学医学院附属第二医院肿瘤内科杭州310000 浙江大学医学院附属第二医院大肠外科杭州310000

通过化疗联合或不联合靶向药物进行转化治疗,使潜在可切除的结直肠癌肝转移患者获得手术治疗或其他局部治疗达到R0切除或无疾病状态。RAS/BRAF基因野生型左半结肠癌和直肠癌,奥沙利铂联合氟尿嘧啶(FOLFOX)或伊立替康联合氟尿嘧啶类(FOLF... 详细信息

通过化疗联合或不联合靶向药物进行转化治疗,使潜在可切除的结直肠癌肝转移患者获得手术治疗或其他局部治疗达到R0切除或无疾病状态。RAS/BRAF基因野生型左半结肠癌和直肠癌,奥沙利铂联合氟尿嘧啶(FOLFOX)或伊立替康联合氟尿嘧啶类(FOLFIRI)联合西妥昔单抗选择更佳;RAS/BRAF基因野生型右半结肠癌患者、RAS或BRAF基因突变的结直肠癌患者,选择相对复杂些。对于年轻、体力状态好的患者应首选奥沙利铂联合伊立替康联合氟尿嘧啶类联合贝伐珠单抗,FOLFOX/奥沙利铂联合卡培他滨/FOLFIRI联合贝伐珠单抗可作为次选方案。转化治疗过程中通常要求多学科团队每2个月评估1次疗效,一旦判断转化成功,即安排落实后续手术治疗方案。

关键词：结直肠肿瘤肝转移转化治疗

高危因素量化问卷与亚太结直肠癌筛查评分及分别联合粪便免疫化学检测在进展期结直肠肿瘤筛查中效果的比较

在线全文

学校读者我要写书评

暂无评论

中华胃肠外科杂志 2022年第7期25卷 612-620页

作者：朱柠黄彦钦宋永茂张苏展郑树袁瑛浙江大学医学院附属第二医院肿瘤研究所(恶性肿瘤预警与干预教育部重点实验室) 杭州310009 浙江大学医学院附属第二医院肿瘤内科(恶性肿瘤预警与干预教育部重点实验室) 杭州310009 浙江大学医学院附属第二医院大肠外科(恶性肿瘤预警与干预教育部重点实验室) 杭州310009

目的评价高危因素量化问卷(HRFQ)与亚太结直肠癌筛查评分(APCS)及分别联合粪便免疫化学检测(FIT)在进展期结直肠肿瘤筛查中的效果,为结直肠肿瘤早筛方法的优化提供依据。方法采用回顾性队列研究的方法,总结分析2017年3月至2018年7月间... 详细信息

目的评价高危因素量化问卷(HRFQ)与亚太结直肠癌筛查评分(APCS)及分别联合粪便免疫化学检测(FIT)在进展期结直肠肿瘤筛查中的效果,为结直肠肿瘤早筛方法的优化提供依据。方法采用回顾性队列研究的方法,总结分析2017年3月至2018年7月间在浙江嘉善县对40~74岁户籍人口进行结直肠肿瘤筛查的结果。排除合并严重疾患以致不适合行结肠镜检查者以及精神、行为异常不能配合筛查者。符合HRFQ问卷以下任何一项或以上者,列为HRFQ高危人群:(1)一级亲属有结直肠癌史;(2)本人有癌症史(任何恶性肿瘤病史);(3)本人有肠道息肉史;(4)同时具有以下两项及两项以上者:慢性便秘(近两年来便秘每年在2个月以上);慢性腹泻(近两年来腹泻累计持续超过3个月,每次发作持续时间在1周以上);黏液血便;不良生活事件史(发生在近20年内,并在事件发生后对调查对象造成较大精神创伤或痛苦);慢性阑尾炎或阑尾切除史;慢性胆道疾病史或胆囊切除史。本研究中,将HRFQ评估为高危者记为“HRFQ(+)”,非高危者记为“HRFQ(-)”。APCS问卷根据年龄、性别、家族史和吸烟4项危险因素进行风险评分:(1)年龄:50~69岁为2分,70岁及以上为3分;(2)性别:男性为1分,女性为0分;(3)家族史:一级亲属患结直肠癌2分;(4)吸烟:当前或过去吸烟1分,不吸烟0分。将人群分为低危(0~1分)、中危(2~3分)、高危(4~7分)。将APCS评估为高危者记为“APCS(+)”,中、低危者记为“APCS(-)”。粪便免疫化学检测(FIT)阳性的血红蛋白阈值设定为100μg/L。将APCS评估为高危者且FIT阳性记为“APCS+FIT(+)”,将APCS评估为高危者且FIT阴性、APCS评估为中低危者且FIT为阳性和APCS评估为中低位者且FIT为阴性记为“APCS+FIT(-)”。观察指标包括:(1)队列人群筛查顺应率及进展期结直肠肿瘤检出情况;(2)HRFQ与APCS及其联合FIT筛检进展期结直肠肿瘤的阳性预测值、阴性预测值、灵敏度和特异度;(3)比较HRFQ与APCS问卷对不同结直肠病变检出率。采用SPSS 21.0软件,绘制受试者工作特征曲线(ROC),评价HRFQ与APCS及分别联合FIT筛查进展期结直肠肿瘤的临床价值。结果浙江嘉善2017—2018年共筛查队列目标人群53268人,实际完成问卷调查42093人,顺应率为79.02%。接受肠镜检查者8145人,HRFQ阳性人群(5320例)中共3607例接受了结肠镜检查,肠镜顺应率为67.80%;确诊结直肠癌8例,进展期结直肠腺瘤88例。APCS阳性人群(11942例)中共2977例接受了结肠镜检查,肠镜顺应率为24.93%;确诊结直肠癌17例、进展期结直肠腺瘤148例。HRFQ筛查的阳性率低于APCS[12.6%(5320/42093)比28.4%(11942/42093),χ^(2)=3195.547,P0.05),但APCS问卷与HRFQ问卷比较,在非进展期腺瘤[26.10%(777/2977)比19.43%(701/3607),χ^(2)=51.228,P<0.001]、进展期腺瘤[4.97%(148/2977)比2.44%(88/3607),χ^(2)=30.249,P<0.001]及结直肠癌[0.57%(17/2977)比0.22%(8/3607),χ^(2)=5.259,P=0.022]方面其检出率要高于HRFQ(均P<0.05)。结论APCS比HRFQ有更高的进展期结直肠肿瘤检出率,APCS联合FIT可以进一步提高进展期结直肠肿瘤筛查的有效性。

关键词：结直肠癌,进展期结直肠腺瘤,进展期筛查高危因素量化问卷亚太结直肠癌筛查评分粪便免疫化学检测检出率

CAF-derived exosome-miR-3124-5p promotes malignant biological processes in NSCLC via the TOLLIP/TLR4-MyD88-NF-κB pathway

在线全文

学校读者我要写书评

暂无评论

Oncology Research 2025年第1期33卷 133-148页

作者： TAO SUN QINGHUA song HUA LIU Department of Respiratory and Critical Care Medicine Affiliated Hospital of Nantong UniversityMedical School of Nantong UniversityNantong226001China Department of Emergency The People’s Hospital of RugaoNantong226500China Department of Haematology The People’s Hospital of RugaoNantong226500China

Background:Lung cancer is a life-threatening disease that occurs worldwide,but is especially common in *** crucial role of the tumour microenvironment(TME)in non-small cell lung cancer(NSCLC)has attracted recent ***-associated fibroblasts(CAFs)are the main factors that contribute to the TME function,and CAF exosomes are closely linked to ***:The expression levels of miR-3124-5p and Toll-interacting protein(TOLLIP)were analysed by bioinformatics prediction combined with RT-qPCR/Western Blot *** were isolated and identified from clinical NSCLC *** electron microscopy and Western Blot were used to identify exosomes from these *** in proliferation(CCK-8 and clone formation),migration(wound healing),and invasion(transwell)of NSCLC cells were *** Luciferase reporter test was applied to clarify the binding of miR-3124-5p to *** TOLLIP/TLR4/MyD88/NF-κB pathway proteins were determined using Western blot ***:MiR-3124-5p is overexpressed in clinical tissues and cells of ***-3124-5p was dramatically enriched in CAF-derived *** experiments revealed that CAFs delivered miR-3124-5p into NSCLC cells via exosomes,stimulating cancer cell ***-3124-5p acted as a sponge to negatively regulate TOLLIP expression,which activated the TLR4/MyD88/NF-κB axis to promote the occurrence and development of *** salvage tests were performed to determine whether CAF-exosome-derived miR-3124-5p plays a pro-cancer role in NSCLC by affecting the TOLLIP signalling ***:These results provide an interesting direction for the diagnosis and therapy of NSCLC.

关键词： Non-small cell lung cancer(NSCLC) Cancer-associated fibroblasts(CAFs) Exosomes miR-3124-5p Toll-interacting protein(TOLLIP)

Constraints on holographic QCD phase transitions from PTA observations

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 71-78页

作者： song He Li Li Sai Wang Shao-Jiang Wang Center for Theoretical Physics and College of Physics Jilin University School of Physical Science and Technology Ningbo University Max Planck Institute for Gravitational Physics (Albert Einstein Institute) CAS Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences School of Fundamental Physics and Mathematical Sciences Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of Sciences (UCAS) School of Physical Sciences University of Chinese Academy of Sciences (UCAS) Theoretical Physics Division Institute of High Energy Physics Chinese Academy of Sciences

The underlying physics of QCD phase transition in the early Universe remains largely unknown due to its strong-coupling nature during the quark-gluon plasma/hadron gas transition, yet a holographic model has been proposed to quantitatively fit the lattice QCD data while with its duration of the first-order phase transition(FoPT) left undetermined. At specific baryon chemical potential, the first-order QCD phase transition agrees with the observational constraint of baryon asymmetry. It, therefore, provides a scenario for phase transition gravitational waves(GWs) within the standard model of particle physics. If these background GWs could contribute dominantly to the recently claimed common-spectrum red noise from pulsar timing array(PTA) observations, the duration of this FoPT can be well constrained, and the associated primordial black holes are still allowed by current observations.

关键词： pulsar timing array QCD phase transition gravitational waves primordial black holes

Neuronal regulated cell death in aging-related neurodegenerative diseases:key pathways and therapeutic potentials

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第8期20卷 2245-2263页

作者： Run song Shiyi Yin Jiannan Wu Junqiang Yan Department of Neurology The First Affiliated HospitalCollege of Clinical Medicine of Henan University of Science and TechnologyLuoyangHenan ProvinceChina Neuromolecular Biology Laboratory The First Affiliated HospitalCollege of Clinical Medicine of Henan University of Science and TechnologyLuoyangHenan ProvinceChina

Regulated cell death(such as apoptosis,necroptosis,pyroptosis,autophagy,cuproptosis,ferroptosis,disulfidptosis)involves complex signaling pathways and molecular effectors,and has been proven to be an important regulatory mechanism for regulating neuronal aging and ***,excessive activation of regulated cell death may lead to the progression of aging-related *** review summarizes recent advances in the understanding of seven forms of regulated cell death in age-related ***,the newly identified ferroptosis and cuproptosis have been implicated in the risk of cognitive impairment and neurodegenerative *** forms of cell death exacerbate disease progression by promoting inflammation,oxidative stress,and pathological protein *** review also provides an overview of key signaling pathways and crosstalk mechanisms among these regulated cell death forms,with a focus on ferroptosis,cuproptosis,and *** instance,FDX1 directly induces cuproptosis by regulating copper ion valency and dihydrolipoamide S-acetyltransferase aggregation,while copper mediates glutathione peroxidase 4 degradation,enhancing ferroptosis ***,inhibiting the Xc-transport system to prevent ferroptosis can increase disulfide formation and shift the NADP^(+)/NADPH ratio,transitioning ferroptosis to *** insights help to uncover the potential connections among these novel regulated cell death forms and differentiate them from traditional regulated cell death *** conclusion,identifying key targets and their crosstalk points among various regulated cell death pathways may aid in developing specific biomarkers to reverse the aging clock and treat age-related neurodegenerative conditions.

关键词： apoptosis autophagy cuproptosis disulfidptosis ferroptosis necroptosis neurodegenerative disease neurological aging diseases PANoptosis pyroptosis