检索结果-南通市图书馆

Extramedullary plasmacytoma with the uvula as first affected site:A case report

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Oncology 2025年第1期16卷 53-58页

作者： jing Yang Hui Peng Sheng-Ke Tu Min li Kui Song Department of Hematology The First Affiliated Hospital of Jishou UniversityJishou 416000Hunan ProvinceChina Department of Pharmacy The First Affiliated Hospital of Jishou UniversityJishou 416000Hunan ProvinceChina

BACKGROUND Extramedullary plasmacytoma(EMP)represents one of the rarer forms of plasma cell malignancies,capable of impacting a variety of tissues and organs throughout the *** majority of EMP cases are predominantly found in the head and neck region,especially within the laryngopharynx,as well as in the gastrointestinal *** there have been documented instances of oropharyngeal involvement in EMP cases in the academic literature,it is important to note that EMP specifically affecting the uvula is exceedingly ***,it is noteworthy that over 60% of epithelial carcinomas in the upper respiratory tract and oropharynx tend to metastasize to the cervical lymph nodes,indicating a propensity for regional spread in these types of *** this context,we present a rare case of extramedullary plasmacytoma where the uvula served as the initially affected *** case emphasizes the need for heightened awareness among clinicians regarding such unusual comorbidities,as early recognition and diagnosis can significantly influence patient management and treatment *** addition,a review of the relevant literature is included to further educate and inform healthcare professionals about this rare presentation,ultimately aiming to enhance clinical understanding and improve patient care in similar *** SUMMARY A 51-year-old man was admitted to our hospital because of a slowly enlarging neck mass.A physical examination revealed a palpable left lymph node,and magnetic resonance imaging(MRI)of the oropharynx and the neck showed a soft tissue mass in the oropharynx and enlargement of multiple lymph nodes in the *** soft tissue mass was diagnosed as plasmacytoma by immunohistochemical *** immunoglobulins and bone marrow biopsy showed normal ***,we diagnosed that as EMP of the *** four cycles of adjuvant chemotherapy dominated by bortezomib,MRI reexamination showed a significant reduction of the mass

关键词： Extramedullary plasmacytoma Plasmacytoma Uvula Multiple myeloma Case report

高分辨率血流成像在胎儿腹部静脉系统超声检查中的应用价值

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

中国优生与遗传杂志 2016年第9期24卷 49-50,F0002页

作者：尤淑艳荆春丽高子晴大连医科大学附属大连市妇产医院大连市妇幼保健院辽宁116033

目的应用高分辨率血流成像（high definition flow,HDF）技术对胎儿腹部静脉系统进行显示,探讨HDF在胎儿腹部静脉系统中的应用价值。方法根据胎儿腹部静脉系统三平面扫查法,采用HDF技术对300例正常胎儿脐静脉、静脉导管、下腔静脉、肝... 详细信息

目的应用高分辨率血流成像（high definition flow,HDF）技术对胎儿腹部静脉系统进行显示,探讨HDF在胎儿腹部静脉系统中的应用价值。方法根据胎儿腹部静脉系统三平面扫查法,采用HDF技术对300例正常胎儿脐静脉、静脉导管、下腔静脉、肝静脉、门静脉、脾静脉进行显像,并与彩色多普勒显像进行对比。结果 CDFI及HDF对脐静脉、下腔静脉的显示率均100%;CDFI静脉导管显示率96%（289/300）,HDF静脉导管显示率99%（296/300）;CDFI肝静脉显示率87%~89%,HDF肝静脉显示率98%;CDFI门静脉的显示率42%~47%,HDF门静脉的显示率93%;CDFI脾静脉显示率35%,HDF脾静脉显示率82%;肝静脉、门静脉、脾静脉显示率差异有统计学意义（P〈0.05）。结论 HDF技术可清晰显示胎儿腹部静脉系统,在肝静脉、门静脉、脾静脉的显像优势明显,对胎儿腹部解剖定位及研究静脉系统变异、畸形有重要意义。

关键词：高分辨率血流成像胎儿静脉系统脐静脉静脉导管下腔静脉肝静脉门静脉脾静脉

二氯化钴预处理对大鼠脑梗死体积及SDF-1α/CXCR4表达水平的影响

在线全文

学校读者我要写书评

暂无评论

中国动脉硬化杂志 2016年第9期24卷 919-923页

作者：穆珊珊张春阳石秋艳王德龙刘春景陈历华北理工大学附属医院神经内科河北省唐山市063000

目的观察二氯化钴预处理对大鼠脑梗死体积百分比、基质细胞衍生因子1α(SDF-1α)/趋化因子受体4(CXCR4)表达的影响;探讨缺氧缺血环境中SDF-1α/CXCR4生物轴对脑的保护作用。方法将168只成年雄性SD大鼠随机分为缺氧预处理组(n=84)、模型... 详细信息

目的观察二氯化钴预处理对大鼠脑梗死体积百分比、基质细胞衍生因子1α(SDF-1α)/趋化因子受体4(CXCR4)表达的影响;探讨缺氧缺血环境中SDF-1α/CXCR4生物轴对脑的保护作用。方法将168只成年雄性SD大鼠随机分为缺氧预处理组(n=84)、模型组(n=84)。按缺血后再灌注时间不同分为再灌注6 h、24 h、3天、5天、7天、14天6个亚组。采用改良Longa方法制备局灶性脑缺血模型。观察缺氧缺血后脑组织病理学改变,通过氯化三苯基四氮唑(TTC)染色法观察脑缺血后再灌注两组大鼠脑梗死体积百分比的变化;免疫组织化学法检测大鼠脑组织皮层区各个时间点SDF-1α及CXCR4的表达变化。结果 TTC染色显示,缺氧预处理组及模型组大鼠6 h时即可见明显梗死灶,24 h脑梗死体积趋于稳定。两组大鼠24 h、3天、5天、7天、14天5个时间点脑梗死体积百分比比较,差异无统计学意义(P>0.05);缺氧预处理组各时间点脑梗死体积百分比均明显小于模型组(P<0.05)。免疫组织化学法结果显示,两组于脑缺血再灌注6 h皮层区SDF-1α、CXCR4表达明显增加,7天表达至高峰,随后表达逐渐减少,14天仍有表达。缺氧预处理组各时间点皮层区SDF-1α、CXCR4的阳性细胞数均显著多于模型组(P<0.05)。结论二氯化钴预处理能缩小脑梗死体积,其可能通过上调SDF-1α、CXCR4的表达水平,诱导脑缺氧耐受,促进间充质干细胞向缺血组织迁移,发挥脑保护作用。

关键词：脑梗死缺氧预处理二氯化钴梗死体积基质细胞衍生因子1α 趋化因子受体4

Photo‑Energized MoS_(2)/CNT Cathode for High‑Performance li–CO_(2)Batteries in a Wide‑Temperature Range

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2025年第1期17卷 160-175页

作者： Tingsong Hu Wenyi lian Kang Hu Qiuju li Xueliang Cui Tengyu Yao Laifa Shen Jiangsu Key Laboratory of Materials and Technologies for Energy Storage College of Materials Science and TechnologyNanjing University of Aeronautics and AstronauticsNanjing 210016People’s Republic of China

li–CO_(2) batteries are considered promising energy storage systems in extreme environments such as Mars;however,severe performance degradation will occur at a subzero temperature owning to the sluggish reaction ***,a photo-energized strategy adopting sustainable solar energy in wide working temperature range li–CO_(2) battery was achieved with a binder-free MoS_(2)/carbon nanotube(CNT)photo-electrode as *** unique layered structure and excellent photoelectric properties of MoS_(2) facilitate the abundant generation and rapid transfer of photo-excited carriers,which accelerate the CO_(2) reduction and li_(2)CO_(3) decomposition upon *** illuminated battery at room temperature exhibited high discharge voltage of 2.95 V and mitigated charge voltage of 3.27 V,attaining superior energy efficiency of 90.2%and excellent cycling stability of over 120 *** at an extremely low temperature of−30℃,the battery with same electrolyte can still deliver a small polarization of 0.45 V by the photoelectric and photothermal synergistic mechanism of MoS_(2)/CNT *** work demonstrates the promising potential of the photo-energized wide working temperature range li–CO_(2) battery in addressing the obstacle of charge overpotential and energy efficiency.

关键词： li-CO_(2)batteries Photo-energized Wide operation-temperature Kinetics MoS_(2)

Pulp health and calcific healing of a complicated crown–root fracture with additional root fracture in a maxillary incisor: A case report

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2025年第3期13卷 42-49页

作者： Na li Yue-Yue Ren Ying Tang Qi Yang Tian-Tian Meng Song li jing Zhang Stomatological Hospital and College Anhui Medical UniversityHefei 230032Anhui ProvinceChina Department of Endodontics The Affiliated Stomatological Hospital of Xuzhou Medical UniversityXuzhou 221000Jiangsu ProvinceChina

BACKGROUND Complicated crown–root fracture (CRF) involves severe injury to the crown, root,and pulp, and may be accompanied by multiple root fractures. The loss of a toothhas lifelong consequences for children and teenagers, but the maintenance of pulphealth and the calcific healing of multiple root fractures are rarely reported in *** SUMMARY This case reports healing of a permanent tooth with complicated crown–root andadditional root fractures, in which pulp health was maintained. A 10-year-old girlfell and fractured the root of her maxillary left central incisor at the cervical *** the coronal fragment was repositioned, the tooth was splinted until thetooth was no longer mobile, 2 years later. Eight years after treatment, the toothhas remained asymptomatic with vital pulp and localized gingival ***-beam computed tomography revealed not only calcified healing of the CRFbut also spontaneous healing in an additional undiagnosed root fracture. Thefracture line on the enamel could not be healed by hard tissue and formed agroove in the cervical crown. It was speculated that the groove was related to thelocalized gingival *** This case provides a clinical perspective of the treatment of a tooth with acomplicated CRF and an additional root fracture.

关键词： Complicated crown-root fracture Multiple root fracture Spontaneous healing Cone-beam computed tomography Long-term follow-up Case report

Bifunctional bridging capping layer enables 24.5% efficiency of perovskite solar cells with polymer-based hole transport materials

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 Chemistry 2025年第1期 350-359页

作者： Can Zhu Yiyang Wang Lei Meng Beibei Qiu jing li Shucheng Qin Ke Hu Xin Jiang Wenbin Lai Minchao liu Zhe liu Chenxing Lu Jinyuan Zhang Yongfang li Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences School of Chemical Science University of Chinese Academy of Sciences Key Laboratory of Solid State Optoelectronic Devices of Zhejiang Province College of Physics and Electronic Information Engineering Zhejiang Normal University Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and ChemistryChinese Academy of Sciences Laboratory of Advanced Optoelectronic Materials College of Chemistry Chemical Engineering and Materials ScienceSoochow University

Developing a bridge capping layer between perovskite and hole transport layer materials（HTMs） in the n-i-p perovskite solar cells（pero-SCs） is an effective approach to modify the morphology of HTMs and passivate the perovskite ***, we select the quinoxaline-based bifunctional passivation agent, quinoxalin-6-yl-methylamine hydrochloride（Qx MACl）,as the bridging layer, and a D-A copolymer PBQ12 containing the same quinoxaline unit as an HTM for the n-i-p pero-SCs. Due to the π-π stacking among the common quinoxaline units in the bridge layer and HTM, Qx MACl induces the π-π stacking of the PBQ12 film and improves the film morphology of HTMs with better conductivity. Additionally, Qx MACl can effectively passivate the perovskite surface, and PBQ12 possesses appropriate energy levels and high hole mobility. The pero-SCs based on FAPbI3with PBQ12/Qx MACl treatment showed a higher power conversion efficiency（PCE） of 24.05% and outstanding stability, maintaining 95.4% and 92.1% of its initial PCE after 750 h of storage and after over 800 h of thermal annealing at 85 °C, respectively. To further enhance the PCE of the PBQ12/Qx MACl-based devices, we developed a non-metal ion dopant for the PBQ12 HTM. Through trace doping of PBQ12 HTM by the non-metal ion dopant, the PCE of the PBQ12/Qx MACl-based devices reached 25.24%（the calibrated PCE of 24.55% by the National Institute of Metrology, China）.

关键词：

同方期刊数据库

分化型甲状腺癌患者血清Tg测定值与内源性TgAb浓度的相关性研究

在线全文

学校读者我要写书评

暂无评论

四川大学学报（医学版） 2011年第6期42卷 856-860页

作者：唐恭顺胥劲俞英潘明志汪君如袁丽萍蒋婷黄芳敬春丽四川大学华西医院核医学科成都610041 四川大学华西医院临床检验中心成都610041 成都中医药大学第二临床医学院内科成都610041

目的研究分化型甲状腺癌(DTC)患者内源性甲状腺球蛋白抗体(TgAb)是否干扰DTC患者血清甲状腺球蛋白(Tg)的测定,分析这种干扰作用是否与TgAb浓度呈剂量依赖性。方法以DTC随访患者作为研究对象。选择Tg>10μg/L、TgAb阴性作为Tg阳性血清,Tg... 详细信息

目的研究分化型甲状腺癌(DTC)患者内源性甲状腺球蛋白抗体(TgAb)是否干扰DTC患者血清甲状腺球蛋白(Tg)的测定,分析这种干扰作用是否与TgAb浓度呈剂量依赖性。方法以DTC随访患者作为研究对象。选择Tg>10μg/L、TgAb阴性作为Tg阳性血清,TgAb>115IU/mL、Tg阴性作为TgAb干扰血清。以恒定量的Tg阳性血清与容积逐渐增加的TgAb干扰血清混合,室温过夜,电化学发光法(ICMA)测定各管Tg值。以TgAb浓度为横坐标、Tg测定值为纵坐标绘图。结果在8例DTC患者的Tg阳性血清中加入3例DTC患者内源性TgAb干扰血清,共获得8条TgAb-Tg曲线。加入TgAb阳性血清后,Tg实测值均降低,其中3例患者的Tg测定值降低幅度与TgAb浓度相关,5例不相关。结论采用免疫分析法测定血清Tg值,内源性TgAb降低了Tg测定值。但只有部分DTC患者Tg测定值降低幅度与TgAb浓度呈剂量依赖性。

关键词：分化型甲状腺癌甲状腺球蛋白甲状腺球蛋白抗体干扰

Constraints on holographic QCD phase transitions from PTA observations

在线全文

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

^(131)碘治疗分化型甲状腺癌患者的健康教育

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

华西医学 2008年第3期23卷 610-611页

作者：汪君如黄芳敬春莉四川大学华西医院核医学科四川成都610041

总结分化型甲状腺癌患者行131I治疗的健康教育内容及方式。为了缩短住院时间和有利于患者掌握健康教育内容,采用入院前、入院后、131I治疗前和出院前4个阶段进行健康教育,使每个患者知晓核素治疗的特点和要求,自觉遵守国家的放射防护法... 详细信息

总结分化型甲状腺癌患者行131I治疗的健康教育内容及方式。为了缩短住院时间和有利于患者掌握健康教育内容,采用入院前、入院后、131I治疗前和出院前4个阶段进行健康教育,使每个患者知晓核素治疗的特点和要求,自觉遵守国家的放射防护法规,保护环境和家人,又达到治疗的目的。

关键词：分化型甲状腺癌 131碘治疗健康教育