Publications by authors named "V Jan"

Purpose: To quantitatively and qualitatively compare the magnitude of metal total hip arthroplasty-induced imaging artifacts in vivo between 1.5T and 0.55T MRI.

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On-surface mass transport is the key process determining the kinetics and dynamics of on-surface reactions, including the formation of nanostructures, catalysis, or surface cleaning. Volatile organic compounds (VOC) localized on a majority of surfaces dramatically change their properties and act as reactants in many surface reactions. However, the fundamental question "How far and how fast can the molecules travel on the surface to react?" remains open.

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Background: This prospective study was aimed at comparing phase contrast cardiac magnetic resonance imaging (PC-CMR) with 2D transoesophageal echocardiography (TEE) for determining potential candidature for transcatheter closure in ostium secundum ASD (OS-ASD) patients. We included consecutive adult patients with OS-ASD for the evaluation of feasibility for transcatheter closure using 2D-TEE and PC-CMR over a period of 2 years. Patients who fulfilled the conventional criteria for transcatheter closure, i.

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In living cells, redox potential is vitally important for normal physiological processes that are closely regulated by antioxidants, free amino acids, and proteins that either have reactive oxygen and nitrogen species capturing capability or can be compartmentalized. Although hundreds of experiments support the regulatory role of free radicals and their derivatives, several authors continue to claim that these perform only harmful and non-regulatory functions. In this paper, we demonstrate that countless intracellular and extracellular signal pathways are directly or indirectly linked to regulated redox processes.

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Article Synopsis
  • Denervation reduces Na+,K+-ATPase (NKA) levels in skeletal muscle, while reinnervation boosts it; myoblasts and myotubes typically do not contract without neurons, affecting NKA expression.
  • Differentiation of myoblasts into myotubes under low serum enhances markers like NKAα2 and FXYD1 while decreasing FXYD5, and innervated myotubes start contracting after about a week.
  • Long-term co-culture increases NKA and FXYD protein levels, while electrical pulse stimulation promotes NKAβ and FXYD expression; however, innervation isn't necessary for the upregulation of specific NKA and FXYD mRNA in myotubes.
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