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  • Title: Changes of molecular forms of atrial natriuretic peptide after treatment for congestive heart failure.
    Author: Marumo F, Kurosawa T, Takeda S, Katoh Y, Hasegawa N, Ando K.
    Journal: Klin Wochenschr; 1988 Aug 01; 66(15):675-81. PubMed ID: 2971839.
    Abstract:
    In the present study, an attempt was made to clarify whether ANP molecular forms in the plasma of severe congestive heart failure patients differ from those in healthy persons and whether ANP molecular forms in the plasma of the patients were changed by successful treatment of cardiac disease. Twenty patients with congestive heart failure were treated at Kitasato University Hospital. They were classified as class III or IV by New York Heart Association criteria at the time of admission. Plasma ANP concentrations decreased after treatment from 356 +/- 58.2 to 72.3 +/- 14.8 pg/ml. The gel permeation chromatograms from the plasma of healthy persons showed low, or low and high molecular weight ANP peaks which correspond to the elution positions of authentic alpha-ANP or ribonuclease A (mol. wt., 13.7 kdalton). In patients with severe congestive heart failure at a severe stage, middle molecular weight ANP consisted with the elution position of authentic beta-ANP was particularly noted in addition of low and high molecular weight ANP peaks. This middle molecular weight peak disappears in most of cases by successful treatment. Molecular forms in the plasma obtained from the coronary sinus and the inferior or superior vena cava were essentially the same. These results indicate that the middle molecular weight ANP supposed as beta-ANP may particularly be secreted in severe congestive heart failure patients.
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