Management of Coagulation and Anticoagulation in Liver Transplantation Candidates

Patrick Northup, Bethany Reutemann – 24 August 2018 – Hemostasis is a complex balance of clot formation and dissolution that is largely modulated by protein synthesis and degradation in the liver. In the state of end‐stage liver disease, there is a disruption of the hemostatic system due to hepatic protein synthetic dysfunction. Because historical clinical laboratory testing often only analyzes a portion of the hemostasis system, the clinician may be misled into believing that cirrhosis patients are imbalanced with a tendency toward bleeding.

Class II Human Leukocyte Antigen Epitope Mismatch Predicts De Novo Donor‐Specific Antibody Formation After Liver Transplantation

Chandrashekhar A. Kubal, Richard Mangus, Burcin Ekser, Plamen Mihaylov, Brian Ceballos, Nancy Higgins, Naga Chalasani, Marwan Ghabril, Lauren Nephew, Andrew Lobashevsky – 24 August 2018 – Formation of de novo donor‐specific antibodies (dn‐DSAs) has been associated with longterm immunologic complications after liver transplantation (LT). We hypothesized that human leukocyte antigen (HLA) epitope/eplet mismatch (MM) is a marker of immunogenicity and a risk factor for dn‐DSA formation.

Incomplete Differentiation of Engrafted Bone Marrow Endothelial Progenitor Cells Initiates Hepatic Fibrosis in the Rat

Ana C. Maretti‐Mira, Xiangdong Wang, Lei Wang, Laurie D. DeLeve – 23 August 2018 – Normal liver sinusoidal endothelial cells (LSECs) promote quiescence of hepatic stellate cells (HSCs). Prior to fibrosis, LSECs undergo capillarization, which is permissive for HSC activation, the proximate event in hepatic fibrosis. The aims of this study were to elucidate the nature of and mechanisms leading to capillarization and to determine how LSECs promote HSC quiescence and why “capillarized LSECs” lose control of HSC activation.

Tracking Fenestrae Dynamics in Live Murine Liver Sinusoidal Endothelial Cells

Bartlomiej Zapotoczny, Karolina Szafranska, Edyta Kus, Filip Braet, Eddie Wisse, Stefan Chlopicki, Marek Szymonski – 23 August 2018 – The fenestrae of liver sinusoidal endothelial cells (LSECs) allow passive transport of solutes, macromolecules, and particulate material between the sinusoidal lumen and the liver parenchymal cells. Until recently, fenestrae and fenestrae‐associated structures were mainly investigated using electron microscopy on chemically fixed LSECs. Hence, the knowledge about their dynamic properties has remained to date largely elusive.

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