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  • Title: Augmented synthesis of beta-human atrial natriuretic polypeptide in human failing hearts.
    Author: Sugawara A, Nakao K, Morii N, Yamada T, Itoh H, Shiono S, Saito Y, Mukoyama M, Arai H, Nishimura K.
    Journal: Biochem Biophys Res Commun; 1988 Jan 15; 150(1):60-7. PubMed ID: 2962584.
    Abstract:
    To elucidate the synthesis of atrial natriuretic polypeptide (ANP) in the failing heart, eighteen human right auricles obtained at cardiovascular surgery were studied. The concentration of alpha-human ANP-like immunoreactivity (alpha-hANP-LI) in human right auricles ranged from 13.8 to 593.5 micrograms/g, and the tissue alpha-hANP-LI concentration in severe congestive heart failure (CHF) (New York Heart Association (NYHA) functional class III or IV) was much higher than those in mild CHF of NYHA class I and class II. The alpha-hANP-LI in the human auricle consisted of 3 major components of ANP, gamma-human ANP (gamma-hANP), beta-human ANP (beta-hANP) and alpha-human ANP (alpha-hANP). The predominant component of alpha-hANP-LI was gamma-hANP in the mild CHF, whereas beta-hANP and/or alpha-hANP were prevailing in the severe CHF and, especially, beta-hANP was markedly increased in human failing hearts.
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