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Brazilian Journal of Medical and Biological Research

Print version ISSN 0100-879XOn-line version ISSN 1414-431X


CARUSO-NEVES, C.; RANGEL, L.B.A.; LARA, L.S.  and  LOPES, A.G.. Regulation of the renal proximal tubule second sodium pump by angiotensins. Braz J Med Biol Res [online]. 2001, vol.34, n.8, pp.1079-1084. ISSN 0100-879X.

For several years it was believed that angiotensin II (Ang II) alone mediated the effects of the renin-angiotensin system. However, it has been observed that other peptides of this system, such as angiotensin-(1-7) (Ang-(1-7)), present biological activity. The effect of Ang II and Ang-(1-7) on renal sodium excretion has been associated, at least in part, with modulation of proximal tubule sodium reabsorption. In the present review, we discuss the evidence for the involvement of Na+-ATPase, called the second sodium pump, as a target for the actions of these compounds in the regulation of proximal tubule sodium reabsorption.

Keywords : Na+-ATPase; angiotensin II; angiotensin-(1-7); furosemide; proximal tubule.

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