Glutathione (GSH) decreases in dog myocardium upon acute coronary occlusion when compared with sham-operated dogs. Total glutathione content (GSHeq = GSH + 2GSSG) remains unchanged throughout the experiment (6 h after surgery) in both sham- and acute coronary occlusion-operated dogs. GSSG and GSH/GSSG ratio increases and decreases respectively in all animals but tends to reach the normal value after 6 h in sham-operated dogs. Both parameters (GSSG and GSH/GSSG ratio) remain altered in acute coronary occlusion-operated ones. This alteration of glutathione status in ischemic myocardium is discussed.
RESUMENLa hemoglobinuria paroxística nocturna (HPN) es la traducción clínica de una alteración de las células hematológicas, cuya etiopatogenia ha sido desconocida hasta hace relativamente poco tiempo. Intentamos resumir los aspectos más relevantes del proceso, y definir las características patogénicas, responsables de las manifestaciones clínicas de la enfermedad.PALABRAS CLAVE: HPN. Etiología. Patogenia. Pig-A. Proteínas de anclaje del glucosilfosfatidilinositol.
ABSTRACTParoxysmal Nocturnal Haemoglobinuria (PNH) is a clinical manifestation of an haemathology cell disease, whose etiology has been unknown for many years. We try to resume the most relevant facts of this entity and to define the pathogenesis which is responsible of the clinical manifestations of the disease.
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