PMID: 9640343Jun 26, 1998Paper

Early administration of angiotensin-converting enzyme inhibitor captopril, prevents the development of hypertension programmed by intrauterine exposure to a maternal low-protein diet in the rat

Clinical Science
R C Sherman, Simon C Langley-Evans

Abstract

1. Associations of intrauterine exposure to maternal undernutrition with later hypertension and coronary heart disease in the human population have been duplicated in the rat. Fetal exposure to low protein diets produces offspring that develop raised systolic blood pressure by the age of weaning. This animal model of 'programmed' hypertension was used to investigate the role of the renin-angiotensin system in the initiation and maintenance of high blood pressure. 2. Pregnant rats were fed diets containing 18 or 9% casein from conception until littering. The offspring from these pregnancies were administered captopril either between 2 and 4 weeks of age, or from 10 to 12 weeks of age. 3. The feeding of low protein diets in pregnancy had no effect upon the reproductive ability of female rats and the offspring generated were of normal birthweight. By 4 weeks of age the male and female offspring of low-protein-fed dams had systolic blood pressures that were 24-25 mmHg higher than those of rats exposed to a control diet in utero. 4. Treatment of 10-week-old female offspring with captopril for 2 weeks indicated that angiotensin II formation may play a role in the maintenance of high blood pressure in low-protein-exposed rats. While c...Continue Reading

Citations

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