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  • Title: Alpha-form of atrial natriuretic peptide released from dog atrium during atrial distension.
    Author: Akabane S, Kojima S, Kawamura M, Iida T, Matsushima Y, Ito K.
    Journal: Clin Exp Hypertens A; 1988; 10(2):311-22. PubMed ID: 2967135.
    Abstract:
    To assess the released form of atrial natriuretic peptide (ANP) during atrial distension, we compared the form of ANP before and during atrial distension in anesthetized dogs, using radioimmunoassay combined with high performance liquid chromatography (HPLC). When increasing the left atrial pressure (LAP) from 2.2 +/- 0.9 mmHg to 9.4 +/- 1.3 mmHg, the plasma ANP concentration in the coronary sinus was increased by 190% over the control, during left atrial distension. The major form of the released ANP extracted in the blood sample obtained from the coronary sinus was alpha-form. However other unidentified immunoreactive peaks, preceding and following the main peak were also discernible. These results suggest that the major form of ANP released during left atrial distension was the alpha-form.
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