The Influence of Dietary Potassium Supplementation on the Development of Hypertension in the Spontaneously Hypertensive Rat (SHR)

1984 ◽  
Vol 66 (6) ◽  
pp. 67P.1-67P
Author(s):  
A. Louise Sugden ◽  
Barbara L. Bean
1992 ◽  
Vol 3 (2) ◽  
pp. 188-195
Author(s):  
G F DiBona ◽  
S Y Jones

The borderline hypertensive rat is the first filial offspring of the spontaneously hypertensive rat and the Wistar-Kyoto rat. With increased dietary sodium chloride intake, the borderline hypertensive rat develops hypertension and exaggerated cardiovascular and renal responses to acute environmental stress, similar to those observed in the hypertensive spontaneously hypertensive rat parent. In other models of sodium chloride-sensitive hypertension with different genetic background (Dahl rat), dietary potassium chloride supplementation protects against the development of hypertension, increased sympathetic nervous system activity, and exaggerated responses to acute environmental stress. This investigation sought to determine whether the dietary sodium chloride-induced development of both the hypertension and the exaggerated responses to acute environmental stress could be reversed or prevented by increased dietary potassium chloride intake. Dietary potassium chloride intake was increased with a 1% potassium chloride drinking solution either after 12 wk of 8% sodium chloride intake (reversal) or concomitant with the onset of 12 wk of 8% sodium chloride intake (prevention). An increase in dietary potassium chloride intake did not reverse or prevent the development of either the hypertension or the exaggerated cardiovascular and renal responses to acute environmental stress in borderline hypertensive rats fed 8% sodium chloride. It is concluded that the difference in genetic background between borderline hypertensive rats and other models of sodium chloride-sensitive hypertension is an important determinant of the protective effect of dietary potassium chloride supplementation.


1996 ◽  
Vol 37 (4) ◽  
pp. 553-553
Author(s):  
Tomoji Mashimo ◽  
Yasuo Nara ◽  
Tomoko Tamada ◽  
Chiho Matsumoto ◽  
Katumi Ikeda ◽  
...  

Hypertension ◽  
1997 ◽  
Vol 30 (4) ◽  
pp. 880-885 ◽  
Author(s):  
Michael S. LaPointe ◽  
Minghao Ye ◽  
Robert Bacallao ◽  
Daniel Batlle

Sign in / Sign up

Export Citation Format

Share Document