Abstract
The effects of angiotensin infused via the renal artery, and subsequently by the venous route, have been studied on the renal function in anaesthetized dogs.
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1.
Infusion of angiotensin into the renal artery in large doses (0.5 or 1.0 μg per min) produces a fall in the parameters of renal function to a certain level which even more massive doses fail to lower any further.
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2.
Infusion of angiotensin reduces PAH- and creatinine clearances as well as the excretion of water and sodium.
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3.
The angiotensin-induced impairment of renal function is attributed to glomerular changes. The results of the present study rule out tubular involvement.
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4.
The blood pressure changes resulting from administration of angiotensin by the intravenous route are connected with a prompt tachyphylactic effect.
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5.
In the present study no angiotensin-tachyphylaxis was demonstrable in the renal vessels.
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6.
The angiotensin-induced retention of sodium and water may reduce the therapeutic value of this substance.
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Kövér, G., Bálint, T. & Tost, H. Angiotensin and renal function. International Urology and Nephrology 3, 271–282 (1971). https://doi.org/10.1007/BF02081766
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DOI: https://doi.org/10.1007/BF02081766