Journal article

The angiotensin IV/AT(4) receptor

SY Chai, R Fernando, G Peck, SY Ye, FAO Mendelsohn, TA Jenkins, AL Albiston

CELLULAR AND MOLECULAR LIFE SCIENCES | SPRINGER BASEL AG | Published : 2004

Abstract

The angiotensin AT(4) receptor was originally defined as the specific, high-affinity binding site for the hexapeptide angiotensin IV (Ang IV). Subsequently, the peptide LVV-hemorphin 7 was also demonstrated to be a bioactive ligand of the AT(4) receptor. Central administration of Ang IV, its analogues or LVV-hemorphin 7 markedly enhance learning and memory in normal rodents and reverse memory deficits observed in animal models of amnesia. The AT(4) receptor has a broad distribution and is found in a range of tissues, including the adrenal gland, kidney, lung and heart. In the kidney Ang IV increases renal cortical blood flow and decreases Na(+) transport in isolated renal proximal tubules. T..

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