Results 1 to 10 of about 2,432 (123)

Recent advances and prospect in immune microenvironment and its mechanisms of function in head and neck squamous cell carcinoma [PDF]

open access: yes, 2023
Head and neck cancer (HNC) remains a significant cause of morbidity and mortality. The most prevalent pathology among HNC is head and neck squamous cell carcinoma (HNSCC).
ZHANG Shaoqiu, YAN Li, LI Ruichen, ZHAO Yang, WANG Xiaoshen, YANG Xuguang, ZHU Yi
core   +1 more source

Research Progress on Immunomodulatory Activity of Polysaccharides from Blue Foods [PDF]

open access: yes, 2023
With the current over-exploitation of terrestrial resources, multi-dimensional in-depth utilization of aquatic resources has attracted widespread attention.
GU Fudie, ZHOU Yu, CHEN Huiying, LIU Wenmei, ZOU Zehua, LIU Guangming, LIU Qingmei
core   +1 more source

母胎界面微环境改变与早产 [PDF]

open access: yes, 2018
妊娠第37周前分娩的现象被称为早产。目前,全球每年约有1500万早产儿出生,其中100万早产儿在出生后的1个月内死亡。因此,早产作为一个全球性的问题,为社会带来了严重的负担。探索早产发生的机制,寻找有效的预防方法,是目前亟待解决的科学问题。文章围绕影响母胎界面微环境的3个主要因素即胎儿滋养层细胞、子宫蜕膜和母胎界面免疫细胞,详细阐述母胎界面微环境改变在早产发生中的作用机制。国家重点研发计划 ...
孟楠, 张思亚, 王海滨, 黄琳
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500 kV断路器液压弹簧机构频繁打压故障的分析

open access: yesGaoya dianqi, 2022
高压断路器液压弹簧机构受制造技术、安装工艺、运行环境等因素影响,运行中可能会出现闭锁、误动、拒动、无法储能、频繁打压等问题。文中基于500 kV H变电站5061断路器液压弹簧机构打压频繁现象,机构解体后发现工作缸内壁高、低压油道孔壁处存在贯穿性裂纹,进而建模进行受力分析,结合裂纹处无损检测、金相组织、电镜分析等试验结果,推定工作缸高压、低压油道孔壁处因应力腐蚀造成开裂,导致设备运行时高压液压油内漏至低压液压油管路,从而引起机构频繁打压。据此,结合停电计划抽查同型号设备,建议厂家加强工艺管控 ...
刘亚林   +4 more
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NK细胞及其受体表达与再生障碍性贫血的相关性研究

open access: yesZhongguo shiyan zhenduanxue, 2023
目的 研究再生障碍性贫血(AA)病人外周血NK细胞及其受体表达的变化,探讨NK细胞在AA发病机制中的作用。方法 利用流式细胞术检测28例AA病人(其中SAA 9例,NSAA 19例)外周血NK细胞功能,包括NK细胞数量,活化性受体NKG2D,抑制性受体NKG2A,穿孔素,颗粒酶β的表达,T淋巴细胞亚群及与造血指标的相关性分析,另有18例健康志愿者为对照组。结果 AA病人外周血NK细胞数,NKG2D,颗粒酶表达减少,与对照组比较差异有统计学意义 ...
孔令环   +6 more
doaj  

Development of interleukin-21 as a therapeutic drug [PDF]

open access: yes, 2017
白细胞介素21; (IL-21)是一种具有多效免疫调节活性的细胞因子,参与先天性免疫反应和适应性免疫反应的多个环节,与自身免疫性疾病、肿瘤、病毒感染等疾病的发病过; 程相关。研究表明,在动物模型中通过增强或抑制IL-21的生物学功能对多种疾病具有治疗意义,多项以重组人IL-21为受试药物的临床试验已经开展。本; 文就IL-21的生物学功能,以及IL-21作为生化药物在临床治疗中的研究进展和应用前景进行阐述。Interleukin-21 (IL-21) is a cytokine with broad ...
刘狄彤   +5 more
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Advances in Mechanism of Coexistence and Pharmaceutical Treatment of Chronic Heart Failure and Depression [PDF]

open access: yes, 2022
The coprevalence of chronic heart failure (CHF) and depression is 10%-79%, the pathogenesis of these two diseases is related to the activation of immune inflammatory system, insulin resistance and intestinal flora imbalance, and relevant regulation is ...
YANG Rongjun, SHI Yufang, WANG Qinghai
core   +1 more source

Progresses on immune-related genes and proteins of abalones [PDF]

open access: yes, 2009
鲍是世界重要的海水养殖经济贝类,但近年来时常发生的疾病给养鲍业带来了大量的经济损失。目前有关鲍免疫相关基因和蛋白的研究报道较少,而这些功能分子对揭示鲍的免疫机制具有关键作用,文章综述了鲍免疫相关基因和蛋白的研究进展,以期为防治鲍疾病的相关研究提供参考。Abalones, belonging to one of the largest marine gastropod mollusks, are economically important seafood in aquaculture worldwide.
任洪林, 柳增善, 王克坚
core   +1 more source

Advances in fundamental and translational breast cancer research in 2022 [PDF]

open access: yes, 2023
According to the data released by the International Cancer Research Institute of the World Health Organization (WHO), breast cancer is the malignant tumor with the highest incidence rate in women, and seriously endangers women's health.Many impressive ...
WANG Ziyu, XIAO Yi, JIANG Yizhou, SHAO Zhimin
core   +1 more source

胆漏的位置可能是影响首次内镜逆行胰胆管造影术成功的相关因素

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2021
目的探究胆漏的位置可能是影响首次内镜逆行胰胆管造影术(ERCP)成功的相关因素。方法回顾性分析广州医科大学附属第二医院自2012年6月至2017年4月行肝胆手术后疑似胆漏患者的临床资料。所有患者均行ERCP,分为胆囊管漏组(9例)和肝内胆管漏组(10例),统计分析白细胞计数、肝功能变化及治愈情况。结果19例患者均顺利完成治疗,术后未出现出血、穿孔、感染休克等严重并发症。两组患者手术前后白细胞计数、肝功能及改善情况比较差异无统计学意义(P>0.05)。把首次ERCP成功者分为A组(n=11 ...
魏章均, 曹良启, 陈世荣
doaj  

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