Results 121 to 130 of about 1,064,749 (319)

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

低能量氦氖激光照射促进体外培养神经元的突起生长和RNA合成

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 1988
机械分离新生大白鼠颈上节(superior cervical ganglia)进行分离细胞培养。培养物分为激光照射组与对照组,两组均在含有神经生长因子(nerve growth factor)的培养液中生长。激光照射组每隔2小时用4毫瓦氦氖激光(Helium-Neon laser)照射一次,每次5分钟,直至终止培养。对照组未经激光照射。两组培养物分别培养20、22、24和28小时,测量培养物的神经元突起(neurite)生长;在培养22小时,用~3H-尿嘧啶核苷和~3H-胸腺嘧啶核苷标记培养物的细胞 ...
周汉城
doaj  

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

苯甲酸钠诱导PC12细胞凋亡及对TH表达的影响

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2014
摘 要: 【目的】 观察苯甲酸钠(SB)对PC12肾上腺嗜铬细胞瘤细胞凋亡的诱导作用及对酪氨酸羟化酶(TH)表达的影响。【方法】 以大鼠PC12细胞为多巴胺能神经元细胞模型,以10~ 50 mmol/L不同浓度的SB加入PC12细胞,培养24 h后,噻唑蓝(MTT)比色法检测细胞活性;DAPI染色观察细胞凋亡形态;流式细胞术检测细胞凋亡状况以及用Westernblot检测TH蛋白表达。【结果】 SB可呈浓度依赖性抑制PC12细胞活性,并诱导PC12细胞核形态呈凋亡改变;流式细胞术检测显示随着SB浓度增加,
doaj  

Budsjettet relatert til dynamisk styring : en casestudie av SpareBank 1 Gruppen AS

open access: yes, 2010
Utredningen tar for seg problemstillingen: ”Hvordan forholder budsjettet seg til dynamisk styring i teori og praksis?” Utredningen er en casestudie av SpareBank 1 Gruppen AS. I 2009 innførte konsernet et nytt styringssystem, ”Dynamisk Styring”, som bygger på prinsipper fra Beyond Budgeting.
Bystrøm, Wenche Elisabeth, Holm, Marit
openaire   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

同型半胱氨酸对人外周血内皮祖细胞功能的影响

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2014
摘 要: 【目的】 探讨同型半胱氨酸(Hcy)对外周血内皮祖细胞(EPC)迁移、粘附能力的影响。【方法】密度梯度离心法获取单个核细胞,接种于铺有人纤维连接蛋白包被的培养皿,培养7 d后免疫荧光鉴定EPC。实验分对照组(Control,CT)、50 μmol/L腺苷(adenosine, Ade)组(A50)、50 μmol/L Hcy组(H50)、50 μmol/L Hcy+50μmol/LAde组(A50+H50)和50 μmol/L Hcy+50 μmol/L Ade+10 ng ...
doaj  

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

沉默Pokemon基因对鼻咽癌细胞株CNE-2放射敏感性的影响

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2012
【目的】 探讨沉默Pokemon基因对鼻咽癌细胞(CNE-2)放射敏感性的影响,寻求放射治疗鼻咽癌的新方法。 【方法】 首先利用siRNA预测软件得到3条siRNA序列,并制备合成siRNA片段,利用RT-PCR和免疫印迹法检测其沉默Pokemon基因的效果,筛选出沉默效果最佳的siRNA片段,转染CNE-2细胞后观察其对CNE-2细胞p53基因表达的影响、MTT法检测细胞的增殖活性、流式细胞术检测细胞的凋亡、克隆形成法检测转染siRNA联合放射处理后细胞的放射增敏比。【结果 ...
doaj  

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