Meeting Banner
Abstract #0322

Subcellular Distribution of Manganese and Its Impact on Mitochondrial Function in Rat Cardiac Myocytes

Ya Chen1, Mariana G. Rosca2, Charles L. Hoppel2, 3, Xin Yu1

1Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States; 2School of Medicine, Case Western Reserve University, Cleveland, OH, United States; 3Department of Pharmacology, Case Western Reserve University, Cleveland, OH, United States

This study aims to elucidate the mechanisms leading to long Mn2+ retention in cardiac myocytes. Subcellular distribution of Mn2+ was delineated by ICP-OES. The impact of Mn2+ accumulation on mitochondrial respiration was also assessed by isolated mitochondrial studies.

Keywords

abnormal accordingly accumulation acid acquisition addition analyzed anesthetized ashes assessed beats biomedical buffer burned calcium cardiac central centrifugation chem coil collected column compartments consistent consumption containing content continuous continuously contractile contraction contrast contribute control coupling course cycling decrease decreased delineate delineated described dissolved distribution dysfunction either engineering enhanced enhancement equilibrated evaluated excised excitation finished fraction fractionation fully function furnace heart hours impact implicated in vivo induced initial interval intracellular isolated kinetics locker long look male manganese mapping maps matrix measured measuring medicine minced modified myocardium night nitric nuclei opportunity organelle organelles oxidation oxidative oxygen paced pacing palmer perfused perfusion period periods pharmacology placed play populations prescribed previously prior progressively properties protocol quantification rapid rats recovery reduction regulating remained reserve resolution respiration respiratory retention role saturation scanner school separated setup significantly slice slower suggest suspended table technologies temporal thick tissues trend trigger triggered unaltered unchanged understood unit uptake ventricular vertical volume wash washout western