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  • Title: Atrial natriuretic factor: radioimmunoassay and effects on adrenal and pituitary glands.
    Author: Gutkowska J, Horký K, Schiffrin EL, Thibault G, Garcia R, De Léan GA, Hamet P, Tremblay J, Anand-Srivastava MB, Januszewicz P.
    Journal: Fed Proc; 1986 Jun; 45(7):2101-5. PubMed ID: 2872084.
    Abstract:
    A simple and sensitive radioimmunoassay was developed for measurement of immunoreactive atrial natriuretic factor (IR-ANF) in rat and human plasma and in rat atria. The two atria contain about 20 micrograms ANF per rat. The right atrium contained 2.5 times more ANF than did the left. Ether anesthesia and morphine markedly increased IR-ANF in rat plasma. The concentration of IR-ANF in plasma of clinically normal human subjects was 65.3 +/- 2.5 pg/ml. Paroxysmal tachycardia and rapid atrial pacing significantly increased IR-ANF in human plasma. Two- to seven-fold higher concentrations were found in coronary sinus blood than in the peripheral circulation. In the plasma of rats and humans, circulating ANF is probably a small-molecular-weight peptide. ANF acts on the adrenal and the pituitary. ANF inhibits aldosterone secretion from rat zona glomerulosa and steroid secretion by bovine adrenal zona glomerulosa and fasciculata. ANF stimulated the basal secretion of arginine vasopressin (AVP) in vitro and inhibited KCl-stimulated release of AVP.
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