Results 31 to 40 of about 16,409 (164)

Protein phosphatase 2A-B55δ enhances chemotherapy sensitivity of human hepatocellular carcinoma under the regulation of microRNA-133b [PDF]

open access: yes, 2016
目的:原发性肝细胞癌(hepatocellularcarcinoma,HCC)是我国公共卫生关注的热点问题之一,寻找增强HCC化疗敏感性的有效干预靶点具有重要意义。蛋白磷酸酶2A(proteinphosphatase2A,PP2A)是重要的肿瘤抑制因子;PPP2R2D基因编码的PP2A-B55δ亚基参与细胞周期有丝分裂调控。我们前期研究验证了PPP2R2D基因3’-非翻译区(3’-untranslatedregion,3’UTR)的+15G>C多态性位点受微小RNA-133b(microRNA-133b,
庄群瑛
core  

A blinded randomised split‐body clinical trial evaluating the effect of fluorescent light energy on antimicrobial management of canine interdigital furunculosis

open access: yesVeterinary Dermatology, Volume 36, Issue 3, Page 291-301, June 2025.
Background – Canine interdigital furunculosis (CIF) is a complex, relapsing inflammatory condition, typically complicated by deep bacterial infections requiring prolonged systemic antibiotics. Hypothesis/Objectives – This split‐body study, where dogs acted as their own control, evaluated whether the adjunctive use of fluorescent light energy (FLE ...
A. Lange   +12 more
wiley   +1 more source

The study of AKAP95 and Cx43 protein co-regulating cell G1/S phase transition [PDF]

open access: yes, 2016
本研究分为两部分,第一部分采用免疫组织化学实验,包括肺癌组织中AKAP95和CyclinD3、Akt蛋白表达与临床病理学指标的关系及3种蛋白之间的关联性分析、直肠癌组织中AKAP95、CyclinD1、CyclinE1和Cx43蛋白的关联性分析。通过检测51例肺癌组织和15例癌旁组织中细胞周期蛋白D3(CyclinD3)、蛋白激酶A锚定蛋白95(AKAP95)和丝/苏氨酸激酶(serine/threoninekinase,Akt,亦称蛋白激酶B,PKB)的表达发现,AKAP95 ...
原阳阳
core  

Detection of human cytomegalovirus cell‐free DNA in pregnant women with symptomatically infected fetuses: proof‐of‐concept study

open access: yesUltrasound in Obstetrics &Gynecology, Volume 65, Issue 4, Page 470-477, April 2025.
ABSTRACT Objective To evaluate the presence and levels of cytomegalovirus (CMV) cell‐free DNA (cfDNA) fragments in women pregnant with a fetus with symptomatic congenital CMV (cCMV). Methods The study comprised nine women whose fetuses were diagnosed with cCMV between June 2019 and July 2024 at 20 + 4 to 34 + 1 weeks' gestation (n = 8) or neonatally (n 
B. H. W. Faas   +9 more
wiley   +1 more source

A prospective study evaluating the correlation between local weather conditions, pollen counts and pruritus of dogs with atopic dermatitis

open access: yesVeterinary Dermatology, Volume 35, Issue 5, Page 500-507, October 2024.
Abstract Background Canine atopic dermatitis (cAD) is a hereditary, generally pruritic and predominantly T‐cell‐driven inflammatory skin disease, involving an interplay between skin barrier abnormalities, allergen sensitisation and microbial dysbiosis.
L. Widorn   +2 more
wiley   +1 more source

Fetal and neonatal neuroimaging in twin–twin transfusion syndrome

open access: yesUltrasound in Obstetrics &Gynecology, Volume 63, Issue 6, Page 746-757, June 2024.
ABSTRACT Objectives To describe the types of brain injury and subsequent neurodevelopmental outcome in fetuses and neonates from pregnancies with twin–twin transfusion syndrome (TTTS). Additionally, to determine risk factors for brain injury and to review the use of neuroimaging modalities in these cases.
M. S. Spruijt   +8 more
wiley   +1 more source

凝血酶促进结肠癌SW480细胞生长的研究

open access: yesZhongguo shiyan zhenduanxue, 2011
目的探讨凝血酶对结肠癌SW480细胞增殖及细胞周期的影响。方法将20 nmol/L、100 nmol/L、500nmol/L的凝血酶作用于SW480细胞48 h,以未处理组(0 nmol/L)作为对照。CCK-8(cell counting kit-8)法检测细胞增殖情况;流式细胞术检测细胞周期变化;RT-PCR检测蛋白酶活化受体-4(protease-activated receptor-4,PAR-4)的mRNA表达;Western blotting检测NF-κB p50蛋白表达。结果在20-500
王峰   +7 more
doaj  

Identification of new genes associated with bio-silification in marine Diatom Thalassiosira pseudonana [PDF]

open access: yes, 2016
硅藻是一类广泛分布于水体中的光合自养真核单细胞藻类,在全球碳和硅循环中起重要作用,它们需要从环境中吸收硅酸盐来合成二氧化硅的细胞壁。硅藻独特的硅质化结构既具有重要生态学意义,又具有广泛实用价值。其硅质壁的形成过程及分子调控机理一直受到研究者们关注。最近,一些直接跟生物硅化相关的基因或蛋白正被科学家们发现和研究,但这些蛋白都是直接从硅藻细胞壁上提取下来,而精确的硅质壁合成过程不可能仅由细胞壁上这几个蛋白调控合成,所以为进一步了解硅质壁的合成和调控过程,必须更广泛深入研究与硅藻生物硅化相关的其他基因或蛋白 ...
王鹏
core  

NADH对Aβ蛋白损伤PC12细胞转谷酰胺酶Ⅱ、Cyclin和G蛋白表达的调控

open access: yesZhongguo shiyan zhenduanxue, 2005
目的 探讨NADH对PC1 2细胞Aβ2 5 - 35 损伤后的修复作用。方法 采用细胞实验检测NADH对Aβ2 5 - 35 对鼠肾上腺髓质嗜铬细胞瘤PC1 2细胞系细胞毒性作用的影响,并运用流式细胞仪对细胞周期蛋白、G蛋白和转谷酰胺酶Ⅱ含量进行分析。结果 NADH能够明显抑制Aβ2 5 - 35 对PC1 2细胞的毒性作用,上调细胞损伤后周期蛋白A和B1的表达及下调周期蛋白D1表达;上调G蛋白和转谷酰胺酶Ⅱ表达。结论 NADH抑制和修复Aβ2 5 - 35 对PC1 2的损伤与细胞周期蛋白 ...
张琳, 赵丽波, 邬英全, 王超
doaj  

Cloning and function analysis of rice OsICK1 gene [PDF]

open access: yes, 2006
细胞分化是植物生长和发育的重要过程。在真核生物中,细胞周期蛋白依赖性激酶(CDK)是细胞周期调控的中心组分,对细胞周期起着核心性的调控作用。细胞周期蛋白依赖性激酶(CDK)能够与细胞周期蛋白(cyclin)结合,形成Cyclin-CDK复合物,激活CDK的激酶活性,使底物蛋白质磷酸化,调控细胞周期的运行。不同种类的CDK能够与不同种类的周期蛋白结合,构成不同的CDK激酶,在细胞周期的不同时期表现出活性,对细胞周期的不同时期进行调节。细胞周期蛋白依赖性激酶抑制剂(ICK ...
何艺宾
core  

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