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Sökning: WFRF:(Batkiewicz L)

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1.
  • Abe, K., et al. (författare)
  • J-PARC Neutrino Beamline Upgrade Technical Design Report
  • 2019
  • Rapport (refereegranskat)abstract
    • In this document, technical details of the upgrade plan of the J-PARC neutrino beamline for the extension of the T2K experiment are described. T2K has proposed to accumulate data corresponding to 2×1022 protons-on-target in the next decade, aiming at an initial observation of CP violation with 3σ or higher significance in the case of maximal CP violation. Methods to increase the neutrino beam intensity, which are necessary to achieve the proposed data increase, are described.
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2.
  • Miftakhova, Regina, et al. (författare)
  • Cyclin A1 regulates the interactions between mouse haematopoietic stem and progenitor cells and their niches
  • 2015
  • Ingår i: Cell Cycle. - : Taylor & Francis. - 1538-4101 .- 1551-4005. ; 14:12, s. 1948-1960
  • Tidskriftsartikel (refereegranskat)abstract
    • It remains poorly understood how the haematopoietic stem/progenitor cells (HSPC) are attracted to their niches and the functional consequences of such interaction. In the present study, we show that the cell cycle regulator cyclin A1 in association with vascular endothelial growth factor receptor 1 (VEGFR1), is required for HSPC and their niches to maintain their function and proper interaction. In the absence of cyclin A1, the HSPC in the BM are increased in their frequency and display an increased migratory and homing ability. Concomitantly, the ability of the endosteal and central BM niche zones to attract and home the wild-type HSPC is significantly reduced in cyclin A1-null mice as compared to the wild-type controls. The impaired proliferation and homing of HSPC in the BM of cyclin A1-null mice are attributed to the increased density of microvessels in the endosteal and central BM niche zones, which is associated with the increased VEGFR1 expression. Thus, modulation of cyclin A1 and VEGFR1 in HSPC and their niches may provide new insights into therapeutic approaches.
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3.
  • Salazar, G, et al. (författare)
  • Apoptosis in male germ cells in response to cyclin A1-deficiency and cell cycle arrest
  • 2003
  • Ingår i: Biochemical Pharmacology. - 0006-2952. ; 66:8, s. 1571-1579
  • Tidskriftsartikel (refereegranskat)abstract
    • Male mice homozygous for a mutated allele of the cyclin A 1 gene (Ccna 1) are sterile due to a block in cell cycle progression before the first meiotic division. Meiosis arrest in Ccna1(-1-) spermatocytes is associated with desynapsis abnormalities, lowered MPF activity, and apoptosis as evidenced by TUNEL-positive staining. With time, adult testicular tubules exhibit severe degeneration: some tubules in the older animals are almost devoid of germ cells at various stages of spermatogenesis. The mechanisms by which the cells sense the cell cycle arrest and the regulation of the decision to undergo cell death are under investigation. (C) 2003 Elsevier Inc. All rights reserved.
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