scholarly journals Fundamental studies of essential hypertension by SHR (Report 28): Androgen facilitates tyrosin hydroxylase activity and systolic blood pressure in spontaneously hypertensive rats (SHR).

1993 ◽  
Vol 61 ◽  
pp. 133
Author(s):  
Yoshiko Masubuchi ◽  
Toshio Kumai ◽  
Masami Tanaka ◽  
Minoru Watanabe ◽  
Mari Akaike ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Essential Hypertension ◽  
Systolic Blood Pressure ◽  
Spontaneously Hypertensive Rats ◽  
Hypertensive Rats ◽  
Hydroxylase Activity ◽  
Spontaneously Hypertensive

Metformin decreases plasma insulin levels and systolic blood pressure in spontaneously hypertensive rats

1994 ◽  
Vol 267 (4) ◽  
pp. H1250-H1253 ◽  
Author(s):  
S. Verma ◽  
S. Bhanot ◽  
J. H. McNeill
Keyword(s):  
Blood Pressure ◽  
Systolic Blood Pressure ◽  
Spontaneously Hypertensive Rats ◽  
Plasma Insulin ◽  
Metformin Treatment ◽  
Hypertensive Rats ◽  
Spontaneously Hypertensive ◽  
Insulin Levels ◽  
Plasma Insulin Levels ◽  
Wistar Kyoto

To determine the relationship between hyperinsulinemia and hypertension in spontaneously hypertensive rats (SHR), the antihyperglycemic agent metformin was administered to SHR and their Wistar-Kyoto (WKY) controls, and its effects on plasma insulin levels and blood pressure were examined. Five-week-old rats were started on oral metformin treatment (350 mg.kg-1.day-1, which was gradually increased to 500 mg.kg-1.day-1 over a 2-wk period). Metformin treatment caused sustained decreases in plasma insulin levels in the SHR (27.1 +/- 2.3 vs. untreated SHR 53.5 +/- 2.7 microU/ml, P < 0.001) without having any effect in the WKY (30.7 +/- 2.2 vs. untreated WKY 37.8 +/- 1.6 microU/ml, P > 0.05). The treatment did not affect the plasma glucose levels in any group. Metformin treatment also attenuated the increase in systolic blood pressure in the SHR (157 +/- 6.0 vs. untreated SHR 196 +/- 9.0 mmHg, P < 0.001) but had no effect in the WKY (134 +/- 3 vs. untreated WKY 136 +/- 4 mmHg, P > 0.05). Furthermore, raising plasma insulin levels in the metformin-treated SHR to levels that existed in the untreated SHR reversed the effect of metformin on blood pressure (189 +/- 3 vs. untreated SHR 208 +/- 5.0 mmHg, P > 0.05). These findings suggest that either hyperinsulinemia may contribute toward the increase in blood pressure in the SHR or that the underlying mechanism is closely associated with the expression of both these disorders.

Effects of Chronic Administration of Sarpogrelate on Systolic Blood Pressure of Spontaneously Hypertensive Rats: Comparison with Quinapril

Pharmacology ◽  
2002 ◽  
Vol 64 (2) ◽  
pp. 71-75 ◽  
Author(s):  
Yuki Setoguchi ◽  
Toshio Ohnuki ◽  
Mamunur Rashid ◽  
Takashi Nakamura ◽  
Kaoru Hattori ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Systolic Blood Pressure ◽  
Spontaneously Hypertensive Rats ◽  
Chronic Administration ◽  
Hypertensive Rats ◽  
Spontaneously Hypertensive

Thermal stress elevates the systolic blood pressure of spontaneously hypertensive rats

Life Sciences ◽  
1978 ◽  
Vol 22 (4) ◽  
pp. 359-362 ◽  
Author(s):  
Terence T. Yen ◽  
Donovan V. Pearson ◽  
Carroll E. Powell ◽  
Gerald L. Kirschner
Keyword(s):  
Blood Pressure ◽  
Thermal Stress ◽  
Systolic Blood Pressure ◽  
Spontaneously Hypertensive Rats ◽  
Hypertensive Rats ◽  
Spontaneously Hypertensive
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