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Medicine and Health Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Hematology

Thomas Jefferson University

2021

Humans

Articles 1 - 2 of 2

Full-Text Articles in Medicine and Health Sciences

Inhibition Of Nadph Oxidase Blocks Netosis And Reduces Thrombosis In Heparin-Induced Thrombocytopenia, Halina H L Leung, Jose Perdomo, Zohra Ahmadi, Feng Yan, Steven E. Mckenzie, Beng H Chong Dec 2021

Inhibition Of Nadph Oxidase Blocks Netosis And Reduces Thrombosis In Heparin-Induced Thrombocytopenia, Halina H L Leung, Jose Perdomo, Zohra Ahmadi, Feng Yan, Steven E. Mckenzie, Beng H Chong

Department of Medicine Faculty Papers

Heparin-induced thrombocytopenia (HIT) is associated with severe and potentially lethal thrombotic complications. NETosis was recently shown to be an important driver of thrombosis in HIT. We investigated the role of reactive oxygen species (ROS) and nicotinamide adenine dinucleotide phosphate (NADPH) oxidase 2 (NOX2) and their contributions to thrombus development in HIT. We showed that neutrophil activation by HIT immune complexes induced ROS-dependent NETosis. Analysis of thrombi formed in a microfluidics system showed ROS production in both platelets and neutrophils, and abundant neutrophil extracellular traps (NETs) and ROS distributed throughout the clot. Neutrophil-targeted ROS inhibition was sufficient to block HIT-induced NETosis …


Opioids Are Not A Major Cause Of Death Of Patients With Sickle Cell Disease., Samir K. Ballas Mar 2021

Opioids Are Not A Major Cause Of Death Of Patients With Sickle Cell Disease., Samir K. Ballas

Cardeza Foundation for Hematologic Research

According to the Center of Disease Control and Prevention (CDC) database, the total number of deaths due to opioid overdose from 1999 through 2018 was 840,629. Given the alarming nature of these statistics, patients who requested prescription for opioids became targets of suspicion and possible accusation of maladaptive behavior. Patients with sickle cell disease (SCD) were often not exempt from such accusations and became guilty by association. In order to clarify the effect of opioids on the mortality of patients with SCD, the mortality rates for children and adults with SCD were investigated using the CDC Wide-ranging Online Data for …