Results 21 to 30 of about 1,307,470 (171)

Research Progress and Prospect of Single‐Atom Materials in Tumor Catalytic Therapy

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Tumor catalytic therapy (TCT), an emerging therapeutic modality, exerts specific cytotoxic effects on tumor cells by catalyzing endogenous substances within the tumor microenvironment (TME)—including hydrogen peroxide (H2O2), glucose, and glutathione—to generate reactive oxygen species (ROS) or deplete protective biomolecules.
Youyu Wang   +4 more
wiley   +1 more source

A Strontium‐Based Polyphenol Nanozyme Reverses Cisplatin‐Related Acute Kidney Injury Through Near‐Infrared‐Enhanced PI3K/AKT Pathway Inhibition and Macrophage M2 Directional Polarization

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Cisplatin‐related acute kidney injury (CP‐AKI) is a serious complication of cisplatin (CP) treated patients with cancer with high morbidity and mortality rates. It is directly related to the abnormal accumulation of CP in renal tubular epithelial cells, causing metabolic toxicity, DNA damage, and oxidative stress.
Minghe Jiang   +12 more
wiley   +1 more source

微囊藻毒素对Hela细胞和Vero细胞的毒性效应

open access: yes, 1999
MCYST-LR,MCYST-RR,MCYST-YR稀释后的毒素溶液处理Hela细胞和Vero细胞后得到如下结果:1.3种毒素溶液对培养的Hela细胞均有明显的抑制作用和毒性作用,其毒性作用与浓度成正比.致死细胞边缘不整齐不规则,细胞呈脱水状态.倒置显微镜下可见细胞变黑无折光性.高浓度毒素溶液(包括MCYST-LR,-RR和-YR3个样品)作用细胞24h后,细胞完全致死脱落,3个样品间无明显差别;2.毒素对Vero细胞也具一定的抑制和毒性作用,但不如对Hela细胞的作用强烈;3.在相同稀释浓度下 ...
赵以军,王旭,黄国锦,夏苇,程凯,赵进,甘小妮
core   +1 more source

慢性HBV感染患者抗原表位特异性CTL与ALT水平无关

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2006
[目的]通过定量分析慢性乙型肝炎患者体内乙型肝炎病毒(HBV)特异性的细胞毒性T淋巴细胞,探讨特异性细胞毒性T淋巴细胞水平与血清丙氨酸氨基转移酶水平和病毒复制状态的关系.[方法]从慢性乙型肝炎患者外周血分离外周血单个核细胞(PBMC),用HLA-A2限制的HBcAg抗原表位肽-五聚体复合体及CD8单克隆抗体染色后,用流式细胞仪检测HBV特异性的细胞毒性T淋巴细胞,同时检测患者的肝功能和定量分析HBV DNA.[结果]32例HLA-A2阳性的慢性乙型肝炎患者外周血均可检测到HBV特异性的细胞毒性T淋巴细胞,
邓洪   +6 more
doaj  

Spatiotemporally Adaptive Bilayer Silk Fibroin–Polyvinyl Alcohol–Metformin Composite Coating on Biodegradable Zinc for Orthopedic Applications

open access: yesRare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Biodegradable zinc (Zn)‐based materials are considered promising candidates for orthopedic applications because of their favorable mechanical properties, controllable biodegradability, and good biosafety profiles. However, their clinical translation is limited by early‐stage corrosion‐induced cytotoxicity and inflammation, as well as ...
Jinlong Mao   +9 more
wiley   +1 more source

Preparation of Highly Bioactive Nanolignin via Dopamine Mannich Modification and Its Synergistic Effects With Zn2+ in PVA Hydrogels

open access: yesRare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Lignin is a natural non‐toxic polyphenolic macromolecule, which shows inherent antioxidant and broad‐spectrum antibacterial activities. However, due to the low content and the high bond dissociation energy of phenolic hydroxyl groups (Ar‐O·H), its antioxidant and antibacterial activities are relatively weak, which limits its application as a ...
Meiling Han   +10 more
wiley   +1 more source

副黏病毒感染后程序性细胞死亡的作用

open access: yes浙江大学学报. 医学版
副黏病毒是一类重要的呼吸道病原体,在儿童感染性疾病中具有重要临床意义。其感染过程中可诱导多种形式的程序性细胞死亡(PCD),这些PCD形式在病毒复制、传播及宿主免疫应答中发挥关键作用,显著影响病毒的生命周期及疾病进展。一方面,PCD通过清除被感染细胞有助于限制病毒扩散并激活宿主免疫应答,从而增强抗病毒防御能力;另一方面,过度或异常的细胞死亡可能导致组织损伤和免疫紊乱,为病毒复制提供有利环境,进而加重病情。如细胞凋亡通过外源性与内源性通路参与感染控制,同时亦可能被病毒操控以增强其扩散能力 ...
刘 叶   +3 more
doaj   +1 more source

Influence of Alkaline Earth Barium on the Microstructure, Corrosion Behavior, and Cytocompatibility of Biodegradable Zinc

open access: yesRare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Biodegradable Zn‐based alloys are promising candidates for temporary implants, yet excessive Zn2+ release during degradation may induce cytotoxicity and adverse tissue responses. In this study, Zn‐xBa alloys (x = 0.1 wt%, 0.5 wt%, 1.0 wt% and 3.0 wt%) were developed to achieve controlled corrosion behaviors with improved biocompatibility.
Liu‐Dang Fang   +9 more
wiley   +1 more source

Changing trends in prenatal screening and treatment of cytomegalovirus infection in France: 7‐year national cohort study (2017–2023)

open access: yesUltrasound in Obstetrics &Gynecology, Volume 67, Issue 6, Page 756-763, June 2026.
ABSTRACT Objectives Cytomegalovirus (CMV) is the leading cause of congenital infectious neurosensory impairment. We aimed to present national epidemiological data on maternal CMV infection during pregnancy in France, focusing in particular on primary infection in the periconceptional period or first trimester, and to assess the impact of changes in ...
P. Coste‐Mazeau   +176 more
wiley   +1 more source

碳纤维增强聚醚醚酮(CFR/PEEK)和钛合金的细胞毒性比较

open access: yesZhongguo shiyan zhenduanxue, 2009
目的通过体外细胞毒性试验,对碳纤维增强聚醚醚酮(CFR/PEEK)和钛合金两种材料的细胞毒性进行比较。方法培养人皮肤成纤维细胞(HSF)、人成骨细胞(HFOB)和鼠成纤维细胞(NIH3T3),提取两种材料浸提液。利用CCK-8测量细胞增殖和细胞毒性,采用SPASS12.0对数据进行统计分析,Microsoft Excel软件绘制细胞生长曲线。结果两种材料对三种细胞的增殖均有轻微抑制,但材料组和对照组之间并无显著差异;两种材料对三种细胞均无细胞毒性。结论碳纤维增强聚醚醚酮具有和钛合金相同的细胞相容性 ...
刘军   +4 more
doaj  

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