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Träfflista för sökning "WFRF:(Hao Xiao Yong) srt2:(2005-2009)"

Sökning: WFRF:(Hao Xiao Yong) > (2005-2009)

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1.
  • Li, He, et al. (författare)
  • Enhanced G-protein coupled receptors-mediated contraction and reduced endothelium-dependent relaxation in hypertension
  • 2007
  • Ingår i: European Journal of Pharmacology. - : Elsevier BV. - 1879-0712 .- 0014-2999. ; 557:2-3, s. 186-194
  • Tidskriftsartikel (refereegranskat)abstract
    • The present study was designed to demonstrate a hypothesis that some G-protein coupled receptors are up-regulated and a dysfunction of endothelium occurs in hypertension. The arteries from hypertensive patients and spontaneously hypertensive rats (SHR) were tested. An in vitro myograph system was used to obtain concentration-contraction curves mediated by endothelin ETA, endothelin ETB, 5-hydroxytryptamine 2A (5HT(2A))-receptors and alpha(1)-adrenoceptors in the arterial segments. In hypertensive patients, the maximum contractions (E-max) induced by endothelin ETB, endothelin ETA and 5-HT receptors were significantly increased with elevated pEC(50) values, while a significantly leftward shift of alpha(1)-adrenoceptor-mediated contraction was seen. Similar results were obtained in SHR. Specific antagonists for 5-HT2A receptors or alpha(1)-adrenoceptors rightward shifted the concentration-contractile curves induced by 5-HT or noradrenalin, while the Emax were not significantly altered, suggesting that the contractions were mediated by 5-HT2A receptors and ocl-adrenoceptors, respectively. Endothelium-dependent maximum relaxation (R-max) in the arterial segments induced by acetylcholine was significantly decreased in both hypertensive patients and SHR. In addition, nitric oxide- and endothelium-derived hyperpolarizing factor-mediated dilatations were decreased significantly and the arterial enclothelial cells were in part lost in SHR. In conclusion, endotheliD ETB, endothelin ETA, 5-HT2A receptor- and alpha-adrenoceptor-mediated contractions were increased in hypertension, while the endotheliurn and its ftinctions were damaged. (c) 2006 Elsevier B.V All rights reserved.
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2.
  • Semenyuk, Andrey, et al. (författare)
  • Cartridge-based high-throughput purification of oligonucleotides for reliable oligonucleotide arrays
  • 2006
  • Ingår i: Analytical Biochemistry. - : Elsevier BV. - 0003-2697 .- 1096-0309. ; 356:1, s. 132-141
  • Tidskriftsartikel (refereegranskat)abstract
    • A novel, cartridge-based procedure for the efficient and irreversible detritylation of oligonucleotides is reported. This method, combined with a process for the elimination of depurinated fragments produces, in a highly parallel fashion, oligonucleotides with better purity than those traditionally obtained using reversed-phase high-performance liquid chromotography purification. Our combined detritylation and purification methodology compares favorably with commercial cartridge-based purification systems. The benefits of working with pure oligonucleotides, with regard to higher signal and better signal linearity, are shown in array-based hybridization experiments.
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