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  • Title: Effects of atrial natriuretic peptide, angiotensin II and III on norepinephrine uptake in the rat adrenal medulla.
    Author: Vatta MS, Bianciotti LG, Fernández BE.
    Journal: Rev Esp Fisiol; 1992 Sep; 48(3):185-9. PubMed ID: 1301634.
    Abstract:
    The effects of atrial natriuretic peptide (ANP), angiotensin II (ANG II) and angiotensin III (ANG III) on norepinephrine (NE) uptake were studied in the adrenal medulla of the rat. One microM ANG II and 10 microM ANG III decreased NE uptake while 10 nM and 100 nM ANP increased it. Subthreshold concentrations of ANP (1 nM) blunted the inhibitory effect of 1 microM ANG II but did not modify the inhibitory effect of 10 microM ANG III. The increasing effects of 100 nM ANP on NE uptake were partially reversed by subthreshold concentrations of ANG II (1 nM) and blunted by 1 nM ANG III. The interaction between ANP and the renin-angiotensin system could contribute to modulate the sympathetic function in the adrenal medulla.
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