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Genetic influence on hypertension induced by cadmium in Dahl hypertension-resistant and hypertension-sensitive rats

Conference ·
OSTI ID:7353056
Dahl hypertension-resistant (R) and hypertension-sensitive (S) rats, with opposite genetically controlled propensities for hypertension, were used to determine if cadmium-induced hypertension was also dependent upon genetic predisposition. When intraperitoneal injections of cadmium (1 and 2 mg/kg) were given to male and female R and S rats maintained under ordinary laboratory conditions, female S rats manifested a significant increase in blood pressure which persisted for 16 weeks, whereas the R rats and the male S rats showed no significant changes in blood pressure. Cadmium had no effect on body weight. The concentrations of cadmium in hepatic and renal tissues of cadmium-injected male and female S rats were significantly higher than that of R rats. The kidneys of female S rats given cadmium showed renal vascular changes in accord with renal hypertension of moderate degree. We concluded that differences in genetic substrate influence the pathogenesis of experimental cadmium-induced hypertension.
Research Organization:
Brookhaven National Lab., Upton, N.Y. (USA)
Sponsoring Organization:
US Energy Research and Development Administration (ERDA)
DOE Contract Number:
E(30-1)-16
OSTI ID:
7353056
Report Number(s):
BNL-21463; CONF-760632-3
Country of Publication:
United States
Language:
English