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    • 93. 发明申请
    • ELECTROCHEMICAL SENSOR
    • 电化学传感器
    • WO2014078964A1
    • 2014-05-30
    • PCT/CA2013/050893
    • 2013-11-22
    • UNIVERSITÉ LAVAL
    • VIENS, Jean-FrançoisNORMANDEAU, Charles-OlivierMESSADDEQ, Younes
    • G01N27/417G01N27/406
    • G01N27/3335G01N27/36G01N27/406G01N27/4112G01N27/4146G01N27/4148
    • An electrochemical ion sensor and a method for sensing a presence of at least one ion species in a solution are provided. The electrochemical sensor includes a solid- state electrolyte medium doped with an organometallic material, having an electrochemical affinity with the ion species, and a pair of electrodes electrically contacting the solid-state electrolyte. The electrochemical sensor also includes an electrical circuit configured to drive the pair of electrodes with an AC electrical excitation and to measure at least one parameter related to a complex electrical impedance of the doped solid-state electrolyte medium in response to the AC electrical excitation. The parameter may be an electrical resistance, an inductance or a combination of both, and represents the presence of the ion species in the solution when the solid-state electrolyte medium is exposed to the solution.
    • 提供了电化学离子传感器和用于感测溶液中至少一种离子物质的存在的方法。 电化学传感器包括掺杂有有机金属材料的固态电解质介质,其具有与离子种类的电化学亲和力,以及一对与固态电解质电接触的电极。 电化学传感器还包括电路,其被配置为用AC电激励来驱动该对电极,并且响应于AC电激发而测量与掺杂固态电解质介质的复电阻抗相关的至少一个参数。 该参数可以是电阻,电感或两者的组合,并且表示当固态电解质介质暴露于溶液时溶液中存在离子种类。
    • 95. 发明申请
    • PROGNOSTIC MARKERS OF INHERITED VARIATIONS IN THE 17β-HYDROXYSTEROID DEHYDROGENASE (HSD17B) GENES FOR PROSTATE CANCER
    • 17β-羟基脱氢酶脱氢酶(HSD17B)前列腺癌基因的预测标记
    • WO2013049926A1
    • 2013-04-11
    • PCT/CA2012/000928
    • 2012-10-05
    • UNIVERSITÉ LAVAL
    • LÉVESQUE, ÉricGUILLEMETTE, ChantalFRADET, YvesLACOMBE, Louis
    • C12Q1/68C40B30/04
    • C12Q1/6886C12Q2600/118C12Q2600/156
    • The relationship between polymorphisms in the 17β -hydroxysteroid dehydrogenase (HSD17B ) family of enzymes, involved in active steroid hormones biotransformation, and the risk of prostate cancer (PCa) progression remains unexplored. Objective. To determine if inherited variations in HSD17B genes are associated with PCa progression. Design. We studied two independent Caucasian cohorts composed of 526 men with organ-confined PCa and 213 with advanced disease who had a median follow-up of 7.4 and 7.8 years after surgery, respectively. Measurements. Patients with localized PCa were genotyped for 88 htSNPs in HSD17B1, HSD17B2, HSD17B3, HSD17B4, HSD17B5 and HSD17B12 genes and their prognostic significance on disease progression was assessed using Kaplan-Meier survival curves and Cox regression models. Positive findings were then investigated in advanced disease. Results. After adjusting for known risk factors, 12 SNPs distributed across the HSD17B2, HSD17B3 and HSD17B12 genes were significantly associated with risk of biochemical relapse (BCR) in localized PCa. In addition, four variants of the HSD17B2 (rs1364287, rs2955162, rs1119933, rs9934209) were significantly associated with progression in advanced disease. HSD17B2 polymorphisms, which occurred in 26% and 15% of patients with localized and advanced PCa respectively, were thus associated with high risk of BCR (HR: 2.63, 95%CI: 1.81-3.80, P =0.0000003), progression free survival (HR: 2.81, 95%CI: 1.43-5.52, P=0.008) and overall survival (HR: 3.07, 95%CI: 1.29-7.30, P =0.011). Conclusion. This study suggests a predominant role for common genetic variants in the HSD17B2 pathway and PCa progression.
    • 参与活性类固醇激素生物转化的17β-羟基类固醇脱氢酶(HSD17B)家族的多态性与前列腺癌(PCa)发展的风险之间的关系尚未被探索。 目的。 确定HSD17B基因的遗传变异是否与PCa进展相关。 设计。 我们研究了两名独立的白种人队列,其中包括526名患有器官限制性PCa的男性和213名患有晚期疾病的男性,分别在手术后中位随访7.4和7.8年。 测量。 在HSD17B1,HSD17B2,HSD17B3,HSD17B4,HSD17B5和HSD17B12基因中,对局部PCa患者进行88 htSNPs的基因分型,并使用Kaplan-Meier生存曲线和Cox回归模型评估其对疾病进展的预后意义。 然后在晚期疾病中调查阳性结果。 结果。 调整已知风险因子后,分布在HSD17B2,HSD17B3和HSD17B12基因上的12个SNP与局部PCa中生化复发(BCR)的风险显着相关。 此外,HSD17B2(rs1364287,rs2955162,rs1119933,rs9934209)的四种变体与晚期疾病的进展显着相关。 发生在26%和15%的局部和晚期PCa患者的HSD17B2多态性因此与BCR的高风险相关(HR:2.63,95%CI:1.81-3.80,P = 0.0000003),无进展生存期 HR:2.81,95%CI:1.43-5.52,P = 0.008)和总生存期(HR:3.07,95%CI:1.29-7.30,P = 0.011)。 结论。 这项研究表明HSD17B2途径和PCa进展中常见遗传变异体的主要作用。