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Sökning: WFRF:(Wang Laura) > (2002-2004)

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1.
  • Hillier, Ladeana W, et al. (författare)
  • Sequence and comparative analysis of the chicken genome provide unique perspectives on vertebrate evolution
  • 2004
  • Ingår i: Nature. - 0028-0836 .- 1476-4687. ; 432:7018, s. 695-716
  • Tidskriftsartikel (refereegranskat)abstract
    • We present here a draft genome sequence of the red jungle fowl, Gallus gallus. Because the chicken is a modern descendant of the dinosaurs and the first non-mammalian amniote to have its genome sequenced, the draft sequence of its genome--composed of approximately one billion base pairs of sequence and an estimated 20,000-23,000 genes--provides a new perspective on vertebrate genome evolution, while also improving the annotation of mammalian genomes. For example, the evolutionary distance between chicken and human provides high specificity in detecting functional elements, both non-coding and coding. Notably, many conserved non-coding sequences are far from genes and cannot be assigned to defined functional classes. In coding regions the evolutionary dynamics of protein domains and orthologous groups illustrate processes that distinguish the lineages leading to birds and mammals. The distinctive properties of avian microchromosomes, together with the inferred patterns of conserved synteny, provide additional insights into vertebrate chromosome architecture.
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2.
  • Wang, Xiaoyang, 1965, et al. (författare)
  • X-linked inhibitor of apoptosis (XIAP) protein protects against caspase activation and tissue loss after neonatal hypoxia-ischemia
  • 2004
  • Ingår i: Neurobiol Dis. - Univ Gothenburg, Dept Physiol, Perinatal Ctr, SE-40530 Gothenburg, Sweden. Zhengzhou Univ, Affiliated Hosp 3, Dept Pediat, Zhengzhou 450052, Peoples R China. Univ Gothenburg, Sahlgrens Univ Hosp, Dept Obstet & Gynecol, SE-41685 Gothenburg, Sweden. Uppsala Univ, Dept Neurosci, SE-75123 Uppsala, Sweden. Univ Gothenburg, Dept Med Biophys, SE-40530 Gothenburg, Sweden. Univ Gothenburg, Queen Silvia Childrens Hosp, Dept Pediat, SE-41685 Gothenburg, Sweden. : ACADEMIC PRESS INC ELSEVIER SCIENCE. - 0969-9961 .- 1095-953X. ; 16:1, s. 179-89
  • Tidskriftsartikel (refereegranskat)abstract
    • Nine-day-old transgenic XIAP overexpressing (TG-XIAP) and wild-type mice were subjected to left carotid artery ligation and 10% O(2) for 60 min, leading to widespread infarctions in the ipsilateral hemisphere during reperfusion. The activation of caspase-3 and -9 seen in wild-type animals was virtually abolished in TG-XIAP mice. Tissue loss was significantly reduced from 54.4 +/- 4.1 mm(3) (mean +/- SEM) in wild-type mice to 33.1 +/- 2.1 mm(3) in the TG-XIAP mice. Injured neurons displayed stronger XIAP staining during reperfusion, particularly in the nuclei. XIAP was colocalized with XAF-1, Smac, and HtrA2 in injured neurons after hypoxia-ischemia (HI). XIAP was cleaved after HI, and Smac immunoprecipitation co-precipitated a 25-kDa C-terminal fragment of XIAP, indicating that Smac preferentially bound to cleaved XIAP. These findings provide the first evidence that increased XIAP levels protect the neonatal brain against HI.
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