Results 61 to 70 of about 31,733 (245)

过氧化物酶增生物-激活受体γ2基因多态性与2型糖尿病的相关性

open access: yesZhongguo shiyan zhenduanxue, 2010
目的探讨PPARγ2基因多态性与2型糖尿病的关系。方法以rs1875796为遗传标记,应用多聚酶链-限制性片段长度多态性(PCR-RFLP)技术检测250例2型糖尿病患者和337例健康对照人群PPARγ2基因型。结果 Rs1875796基因型频率CC:CT:TT在2型糖尿病和正常对照组的频率分布分别为2.8%:27.2%:70.0%和2.7%:25.5%:71.8%;C等位基因和T等位基因在2型糖尿病组和正常对照组的频率分布分别为16.4%:83.6%和15.4%:84.6%,两组间的等位基因 ...
高鹏, 吴江, 杜丹华, 张颖
doaj  

CCND1基因多态性与肝细胞癌遗传易感性的病例对照研究 [PDF]

open access: yes, 2017
目的探讨细胞周期蛋白D1基因(CCND1)rs9344位点多态性与肝细胞癌易感性的关联;方法采用病例对照研究,对经肝内穿刺活检确认的266例原发性肝细胞癌新发病例及经年龄、性别匹配的306例健康对照,应用MALDI-TOF法检测CCND1 rs9344基因多态性,以χ2检验比较CCND1基因型及相关危险因素在病例对照间分布的差异,采用非条件Logistic回归分析基因型与肝癌发病风险的关系。结果 CCND1 rs9344位点存在GG、GA、AA三种基因型,G ...
张一中, 林勇, 王传鹏, 苏成豪
core  

Coalescence‐Ripening Mechanism of γ′−Ni3(Al, Ti) During Long‐Term/High‐Temperature Operation of Ni‐Based Superalloy Discs

open access: yesRare Metals, EarlyView.
ABSTRACT The evolution of the γ′−Ni3(Al, Ti) phase in superalloys is governed by a coupled coalescence‐ripening mechanism driven by elemental diffusion. In this study, thermal exposure experiments were performed at 750°C and 800°C for durations ranging from 100 to 20,000 h.
Zhaotian Wang   +5 more
wiley   +1 more source

The study about the association of miRNA1269a SNP and the susceptibility to hepatocellular carcinoma [PDF]

open access: yes, 2016
研究背景及目的: 基于早期肝癌患者缺乏特异症状和体征,而中晚期肝癌患者治疗效率又比较低并且预后较差,探讨肝癌的早期诊断与其发生机制具有重要意义。miRNA是一类由内源基因编码的长度约为22个核苷酸的非编码单链RNA分子,它们在动植物中参与转录后基因表达调控,其形成过程从长链pri-miRNAs到pre-miRNAs,最后形成成熟miRNAs,可直接结合到mRNA的3’UTR,从而抑制mRNA的翻译,导致mRNA的降解,进而影响蛋白质的表达,改变生物过程 ...
闵培
core  

Colorimetric and Photothermal Hollow Nanocomposite Based on Silver‐Seeded Prussian Blue Analog for Dopamine Monitoring and Photothermal Sterilization

open access: yesRare Metals, EarlyView.
ABSTRACT Multi‐element Prussian blue analog (PBA) nanocomposites have attracted wide attention for their superior characteristics to single‐functional nanomaterials in extensive applications of diagnosis and therapy. In this study, a novel hollow nanocomposite was designed and fabricated by embedding S2− and Ag nanoparticles into a NiCuMnFe (PBA).
Tao Ji   +7 more
wiley   +1 more source

Interference of Homologous Sequences on the SNP Study of CYP2A13 Gene [PDF]

open access: yes, 2010
Background and objective It has been proven that cytochrome P450 enzyme 2A13 (CYP2A13) played an important role in the association between single nucleotide polymorphisms (SNP) and human diseases.
Chaorong MEI   +7 more
core  

Excellent Comprehensive Electromechanical Properties in PZT‐Based Hard High‐Temperature Piezoceramics

open access: yesRare Metals, EarlyView.
ABSTRACT High‐power piezoelectric ceramics which have a wide operating temperature range are essential for sensor and actuator applications in extreme conditions. However, their development is fundamentally hindered by the inherent trade‐off among key parameters (TC, d33, Qm).
Rui Yan   +10 more
wiley   +1 more source

The establishment and mechanism research in the mice model of actue liver failure [PDF]

open access: yes, 2016
背景和目的:急性肝衰竭(acuteliverfailure,ALF)是一个危及生命的严重病理生理状态。它可导致肝脏合成、排泄、解毒、生物转化等功能发生严重障碍或失代偿,出现凝血功能障碍、黄疸以及肝性脑病等主要表现的临床综合征。因其死亡率极高,严重ALF的治疗是当今临床医学中最具有挑战的课题之一。为了有效地治疗ALF,制备与ALF发病经过相同、临床表现类似并可复制的物模型是解决此难题的第一步,而了解各种ALF动物模型的构建机制就显得尤为重要。本课题以氧化偶氮甲烷(azoxymethane,AOM ...
金丽鑫
core  

Changes of Potential Suitable Areas for Lynx Under Climate Change in Mohe Area, Daxing'anling Mountains, China

open access: yesWildlife Letters, EarlyView.
Climate change drives shifts in suitable habitats for Eurasian lynx and its prey (hare, roe deer) in Mohe, Daxing'anling Mountains. Under RCP scenarios, moderate warming (RCP4.5) promotes substantial habitat expansion, while high‐emission conditions (RCP8.5) lead to strong expansion in the 2050s but slower gains and partial contraction by the 2070s ...
Binglian Liu   +5 more
wiley   +1 more source

Analysis of genotypes and biochemical phenotypes of neonates with abnormal metabolism of butyrylcarnitine. [PDF]

open access: yesZhejiang Da Xue Xue Bao Yi Xue Ban, 2023
Wu D   +6 more
europepmc   +1 more source

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