| Fetal development and renal function in adult rats prenatally subjected to sodium overload. | |
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MedLine Citation:
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PMID: 19603192 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The aims of this study were (1) to evaluate two factors that affect fetal development--placental oxidative stress (Ox) and plasma volume (PV)--in dams with sodium overload and (2) to correlate possible alterations in these factors with subsequent modifications in the renal function of adult offspring. Wistar dams were maintained on 0.17 M NaCl instead of water from 20 days before mating until either the twentieth pregnancy day/parturition or weaning. Colorimetric methods were used to measure Ox in maternal and offspring tissues, PV, 24-h urinary protein (U(Prot24 h)) and serum triacylglycerols (TG) and cholesterol (Chol). Renal hemodynamics was evaluated in the offspring at 90 days of age using a blood pressure transducer, a flow probe and inulin clearance to measure mean arterial pressure (MAP), renal blood flow and glomerular filtration rate (GFR), respectively. The number of nephrons (NN) was counted in kidney suspensions. Dams showed unchanged PV, placental Ox and fetal weight but increased U(Prot24 h) (150%, P < 0.05). Prenatally sodium-overloaded pups showed increased U(Prot24 h) (45%, P < 0.05) but unchanged MAP, renal hemodynamics, NN and kidney Ox. Prenatally and postnatally sodium-overloaded rats showed increased U(Prot24 h) (27%, P < 0.05) and kidney Ox (44%, P < 0.05), reduced GFR (12%, P < 0.05), increased PV (26%, P < 0.05) and unchanged MAP and NN. The TG increased in both groups of treated offspring (21%, P < 0.05), whereas Chol increased only in the postnatally sodium-overloaded group. We conclude that salt overload from the prenatal stage until weaning leads to alterations in lipid metabolism and in the renal function of the pups, which are additional to those alterations seen in rats only overloaded prenatally. |
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Authors:
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Henriqueta D Cardoso; Edjair V Cabral; Leucio D Vieira-Filho; Adalberto Vieyra; Ana D O Paixão |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2009-07-15 |
Journal Detail:
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Title: Pediatric nephrology (Berlin, Germany) Volume: 24 ISSN: 1432-198X ISO Abbreviation: Pediatr. Nephrol. Publication Date: 2009 Oct |
Date Detail:
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Created Date: 2009-08-25 Completed Date: 2009-11-17 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8708728 Medline TA: Pediatr Nephrol Country: Germany |
Other Details:
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Languages: eng Pagination: 1959-65 Citation Subset: IM |
Affiliation:
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Departamento de Fisiologia e Farmacologia, Centro de Ciências Biológicas, Universidade Federal de Pernambuco, Cidade Universitária, 50670-901 Recife, PE, Brazil. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Female Fetal Development / drug effects* Kidney / drug effects*, physiopathology Kidney Function Tests Oxidative Stress / drug effects Placenta / drug effects Pregnancy Prenatal Exposure Delayed Effects / physiopathology* Rats Rats, Wistar Renal Circulation / drug effects Sodium, Dietary / toxicity* |
| Chemical | |
Reg. No./Substance:
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0/Sodium, Dietary |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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