Episodes of water deprivation enhance daily hypertonic NaCl intake in rats
AUTOR(ES)
Pereira, D.T.B., David, R.B., Menani, J.V., De Luca Jr., L.A.
FONTE
Brazilian Journal of Medical and Biological Research
DATA DE PUBLICAÇÃO
2002-04
RESUMO
Water and 1.8% NaCl intake was recorded daily in adult male rats (N = 6) submitted to four water deprivations plus four sodium appetite tests, each at the end of each 7-day interval, or in controls (non-deprived, N = 6). Water deprivation was achieved by removing water and 1.8% NaCl for 24 h. Water was then offered for 2 h. At the end of this period, 1.8% NaCl was also offered in addition to water (sodium appetite test). Average daily 1.8% NaCl intake was enhanced from 5.2 ± 1.0 to 15.7 ± 2.5 ml from the first to the fifth week in the experimental group and was unchanged in the control group. Daily water intake was not altered in either group. Thus, repeated episodes of water deprivation enhance daily NaCl intake.
Documentos Relacionados
- Characteristics of NaCl and water transport in the renal proximal tubule
- Cerebral regulation of renal sodium excretion in sheep infused intravenously with hypertonic NaCl.
- Effect of variation in dietary NaCl intake on the intrarenal distribution of plasma flow in the rat
- Mechanism of NaCl and water reabsorption in the proximal convoluted tubule of rat kidney.
- Superficial and Deep Juxtaglomerular Apparatus Renin Activity of the Rat Kidney EFFECT OF SURGICAL PREPARATION AND NaCl INTAKE