Document Detail


Fetal exposure to a maternal low protein diet impairs nephrogenesis and promotes hypertension in the rat.
MedLine Citation:
PMID:  10201645     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Epidemiological evidence suggests that hypertension and coronary heart disease are programmed by exposure to a poor diet during intrauterine life. It has been proposed that the prenatal environment may exert an adverse effect on the development of the kidney and hence later control of blood pressure. These assertions are supported by animal experiments. In the rat, fetal exposure to a maternal low protein diet is associated with disproportionate patterns of fetal growth and later elevation of blood pressure. Pregnant female rats were fed control (18% casein) or low protein diets throughout pregnancy, or during specific periods. Nephron number was determined at day 20 gestation, full term and 4 weeks of age. Exposure to low protein throughout gestation, or in mid-late gestation increased total nephron number at day 20. By term nephron number was reduced, relative to controls, in rats that were undernourished between days 8-14 or 15-22 gestation. At 4 weeks postnatally rats exposed to low protein throughout fetal life had a reduced (13%) nephron complement and blood pressures 13 mmHg above control animals. Lower renal size and elevated blood pressure persisted to 19 weeks of age, at which time glomerular filtration rate was normal. The data are consistent with the hypothesis that maternal undernutrition may programme the renal nephron number and hence impact upon adult blood pressure and the development of renal disease.
Authors:
S C Langley-Evans; S J Welham; A A Jackson
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Life sciences     Volume:  64     ISSN:  0024-3205     ISO Abbreviation:  Life Sci.     Publication Date:  1999  
Date Detail:
Created Date:  1999-04-21     Completed Date:  1999-04-21     Revised Date:  2010-08-25    
Medline Journal Info:
Nlm Unique ID:  0375521     Medline TA:  Life Sci     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  965-74     Citation Subset:  IM    
Affiliation:
Nene University College Northampton, United Kingdom. simon.langley-evans@nene.ac.uk
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MeSH Terms
Descriptor/Qualifier:
Animals
Female
Hemodynamics
Hypertension / etiology*
Kidney / embryology*
Nephrons / embryology
Pregnancy
Pregnancy Complications / physiopathology*
Protein Deficiency / complications,  physiopathology*
Rats
Rats, Wistar
Grant Support
ID/Acronym/Agency:
//Wellcome Trust

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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