scholarly journals The influence of aldosterone and angiotensin II on the diuretic effects of atrial natriuretic peptide in the isolated perfused rat kidney

Critical Care ◽  
10.1186/cc579 ◽  
1999 ◽  
Vol 3 (Suppl 1) ◽  
pp. P206
Author(s):  
M Heringlake ◽  
KF Wagner ◽  
J Schumach ◽  
H Pagel ◽  
P Schmucker
2006 ◽  
Vol 136 (1-3) ◽  
pp. 14-22 ◽  
Author(s):  
Messias S. Santos-Neto ◽  
André F. Carvalho ◽  
Helena S.A. Monteiro ◽  
Leonard R. Forte ◽  
Manassés C. Fonteles

1987 ◽  
Vol 28 (2) ◽  
pp. 221-227 ◽  
Author(s):  
Shosaku NARUMI ◽  
Toshiyuki YASUI ◽  
Mamoru YOSHIZAWA ◽  
Minako KAWAMURA ◽  
Hiromichi SUZUKI ◽  
...  

1986 ◽  
Vol 136 (3) ◽  
pp. 947-954 ◽  
Author(s):  
Shigeyuki Takeda ◽  
Eiji Kusano ◽  
Naoki Murayama ◽  
Yasushi Asano ◽  
Saichi Hosoda ◽  
...  

1987 ◽  
Vol 73 (5) ◽  
pp. 489-495 ◽  
Author(s):  
A. M. Richards ◽  
G. Tonolo ◽  
R. Fraser ◽  
J. J. Morton ◽  
B. J. Leckie ◽  
...  

1. Diurnal changes in plasma concentrations of atrial natriuretic peptide (ANP), renin, angiotensin II, aldosterone, Cortisol and antidiuretic hormone were investigated in seven normal volunteers studied under standardized conditions of dietary sodium, posture and physical activity. After completion of the diurnal study serial measurements of these variables were continued during, and on recovery from, a 2 day period of severe sodium depletion. 2. Clear diurnal variations in plasma concentrations of renin, angiotensin II, aldosterone, Cortisol and antidiuretic hormone were observed. 3. Plasma ANP concentrations also varied significantly over 24 h. Values peaked about mid-day and a distinct trough in peptide concentrations occurred in the early evening. However, variations in plasma ANP values were of relatively small amplitude and not clearly independent of modest parallel shifts in sodium balance. 4. Changes in plasma ANP concentrations both within the diurnal study period and during sodium deprivation were closely and positively correlated with concomitant changes in cumulative sodium balance. 5. No simple parallel or reciprocal relationships between plasma concentrations of ANP, on the one hand, and concurrent plasma concentrations of other hormones or in the rate of urinary sodium excretion, on the other, were observed during the 25 h of the diurnal study.


1988 ◽  
Vol 74 (4) ◽  
pp. 419-425 ◽  
Author(s):  
J. McMurray ◽  
A. D. Struthers

1. Atrial natriuretic peptide (ANP) has previously been shown to inhibit the renin–angiotensin–aldosterone system (RAAS) at several different levels. We have now investigated a further non-endocrine, renal interaction between ANP and the RAAS. 2. The effects of ANP and angiotensin II (ANG II) alone, and in combination, on urinary electrolyte and water excretion were studied in eight normal male subjects undergoing maximal water diuresis. 3. ANP caused a significant increase in urine flow and sodium excretion. ANG II alone was antidiuretic, antinatriuretic and antikaliuretic. When ANP was given against a background infusion of ANG II, urinary flow rate and electrolyte excretion increased from a new lower level to reach a value intermediate between that found with ANG II alone and ANP alone. 4. It is concluded that the renal effects of ANP are modified in the presence of simultaneously elevated levels of ANG II and that net water and electrolyte excretion reflect the sum of the opposing influences of each peptide. While this interplay may be non-specific, it is possible that ANP may exert some of its actions by specifically inhibiting the intrarenal effects of ANG II.


1995 ◽  
Vol 269 (2) ◽  
pp. R245-R251 ◽  
Author(s):  
R. E. Blackburn ◽  
W. K. Samson ◽  
R. J. Fulton ◽  
E. M. Stricker ◽  
J. G. Verbalis

These studies evaluated the involvement of central oxytocin (OT) and atrial natriuretic peptide (ANP) receptors in the osmotic inhibition of hypovolemia-induced salt appetite. Rats were pretreated centrally with the A chain of the cytotoxin ricin conjugated to OT (rAOT) or ANP (rAANP) to selectively inactivate cells bearing these respective receptors, or rats were pretreated with the unconjugated A chain (rA) as a control. Hypovolemia was induced with subcutaneous colloid injections, and rats then were given either 2 M mannitol, which raises plasma osmolality but lowers plasma sodium, or 1 M NaCl, which raises both. Hypertonic mannitol inhibited saline ingestion in rA-treated control rats but stimulated ingestion in rAOT- and rAANP-treated rats, whereas hypertonic NaCl blunted saline ingestion in rA- and rAOT-treated rats but stimulated ingestion in rAANP-treated rats. Angiotensin II-induced saline intake was similarly potentiated in rAOT- and rAANP-treated rats, indicating that this treatment also activates central inhibitory OT and ANP pathways. These data suggest that central ANP receptors mediate both Na(+)- and osmolality-induced inhibition of NaCl ingestion, whereas central OT receptors primarily mediate osmolality-induced inhibition of NaCl ingestion in rats.


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