Results 31 to 40 of about 22,208 (188)

ATP敏感性钾离子通道基因多态性与冠心病的相关分析

open access: yesZhongguo shiyan zhenduanxue, 2007
目的初步探讨中国汉族人群Kir6.2基因E23K多态性与冠心病(CHD)的关系。方法提取119例CHD患者和101例对照者的基因组DNA,采用PCR-限制性位点多态性(PCR-RSP)方法检测Kir6.2基因E23K多态性分布特点,同时检测各项血脂水平。结果湖北地区汉族人群中普遍存在该位点的基因多态性,在冠心病组中,G等位基因频率高于正常组(63.4%vs.56.9%,P>0.05);A等位基因频率低于正常组(36.6%vs.43.1%,P>0.05),两组间等位基因频率无显著性差异(P>0.05 ...
鲁敏翔
doaj  

Elevation, soil pH and calcium availability shape regional and local scale spatial patterns of PhoD gene abundance in tropical and subtropical forests

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Organic phosphorus mineralization is a critical process in the phosphorus cycle, governing phosphorus bioavailability for plants. The PhoD gene, which encodes the key enzyme alkaline phosphatase, serves as a valuable biomarker for this process.
Sandhya Mishra   +3 more
wiley   +1 more source

糖尿病、冠心病患者ABCA1基因R219K多态性的频率分布特点

open access: yesZhongguo shiyan zhenduanxue, 2011
目的旨在探讨我国北方地区汉族人ABCA1基因R219K多态性的频率分布特点,对血脂水平的影响,及其与冠心病、糖尿病和糖尿病合并冠心病的关系。方法采用改良碘化钠法提取基因组DNA,聚合酶链反应限制性片段长度多态性(PCR-RFLP)法分析ABCA1基因R219K多态性。结果正常对照组ABCA1基因R219K多态性RR、RK、KK基因型频率、R等位基因频率、K等位基因频率分别为28.5%、48.6%、22.9%、52.8%、47.2%;糖尿病组分别为29.6%、63.9%、6.5%、61.5%、38.5 ...
许慧, 彭浩, 蒋莹
doaj  

Correlation of ATP Binding Cassette Transporter A1 Gene Polymorphisms and Lower Extremity Atherosclerotic Disease [PDF]

open access: yes, 2017
目的:进行三磷酸腺苷结合盒转运体A1(ATP binding cassette transporter A1,ABCA1)基因单核苷酸多态性(single nucleotide polymorphisms,SNP)与下肢动脉粥样硬化(lower extremity atherosclerotic disease,LEAD)的关联分析。方法:收集福建省闽南地区630例体检者(314例LEAD者和316例正常者)的临床资料及外周血;采用Sequenom Mass ...
戴成家, 林小凤, 费燕, 连霞
core  

Use of species’ responses to cryptic anthropogenic disturbances for monitoring biodiversity outcomes in tropical forests

open access: yesConservation Biology, EarlyView.
Abstract Measuring area‐based conservation outcomes in tropical forests is challenging due to cryptic human disturbances (e.g., hunting). As a result, comparative studies of management strategies providing quantitative outcomes remain scarce, especially in the Neotropics.
Lucy Perera‐Romero   +5 more
wiley   +1 more source

Tau 基因 A0 多态性与中国人散发性帕金森病的相关性

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2004
【目的】为了探讨tau基因多态性与帕金森病的关系。【方法】本实验用PCR-片段长度多态性分析法检测了123例中国散发性帕金森病病人和114个正常对照的微管相关蛋白(tau)基因A0等位基因多态性。【结果】我们发现tau基因A0等位基因和A0/A0基因型在帕金森病组的出现率略高于对照组,分别为77.6%:74.1%和61%:57%,但无统计学意义。【结论】A0多态性与我国散发性帕金森病发病无关。
陶恩祥
doaj  

The effect of pentosan polysulfate on diabetic nephropathy renal tubular epithelial cells injury through regulating p38 MAPK signaling pathway [PDF]

open access: yes, 2016
目的:观察戊糖多硫酸钠是否通过调控P38MAPK干预糖尿病肾病肾小管上皮细胞的损伤。方法:利用不同浓度(10mmol/L~50mmol/L)葡萄糖刺激肾小管上皮细胞(HK-2)48h,应用CCK-8比色法检测肾小管上皮细胞增殖的改变。利用不同时间段(0h~48h)葡萄糖刺激细胞,用Westernblot法检测P38MAPK蛋白的表达水平。分为正常对照组(control组)、高糖组(HG组,葡萄糖30mmol/L)、戊糖多硫酸钠(PPS)组(PPS200µg/mL)、高糖+戊糖多硫酸钠组(HG+
张天英
core  

Representation of obligate groundwater‐dwelling copepod diversity in European protected areas

open access: yesConservation Biology, EarlyView.
Abstract Groundwaters sustain diverse surface ecosystems and are populated by metazoan species, mostly invertebrates, that provide fundamental ecological functions and are often of prominent conservation value due to narrow endemism and high phylogenetic rarity.
Francesco Cerasoli   +7 more
wiley   +1 more source

整合素-α2和-β3基因多态性与缺血性脑卒中的相关性研究

open access: yesZhongguo shiyan zhenduanxue, 2010
目的探讨整合素-α2(ITGA2)基因C807T和整合素-β3(ITGB3)基因T176C多态性与缺血性脑卒中的关系及其对血脂、脂蛋白水平的影响。方法应用聚合酶链反应-限制性片段长度多态性(PCR-RFLP)和DNA测序的方法检测265例缺血性脑卒中患者和280例对照组ITGA2和ITGB3的基因型;同时按常规方法测定血浆脂质、脂蛋白水平。结果缺血性脑卒中组总胆固醇(TC)、甘油三酯(TG)、低密度脂蛋白-胆固醇(LDL-C)水平明显高于对照组(P0.05 ...
龙显科   +3 more
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  

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