QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Purchase Article View Shopping Cart Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Soria, A. Articles by Herrera, E. Search for Related Content PubMed PubMed Citation Articles by Soria, A. Articles by Herrera, E.

A Sucrose-Rich Diet Affects Triglyceride Metabolism Differently in Pregnant and Nonpregnant Rats and Has Negative Effects on Fetal Growth^1,2,

Department of Biochemistry, University of Litoral, 3000 Santa Fe, Argentina ^* Faculty of Experimental Sciences, University San Pablo-CEU, E-28660 Madrid, Spain

A sucrose-rich diet (SRD) causes hypertriglyceridemia in nonpregnant rats. To determine whether a SRD further enhances gestational hypertriglyceridemia, female rats were divided into the following two groups: 1) rats fed a SRD (63 g sucrose/100 g), and 2) rats that received the same diet except that the sucrose was replaced by an equal amount of cornstarch (CD). Half of the rats were mated and studied at d 20 of gestation. Body weight increase did not differ between virgin rats fed either diet, but the final body weight of pregnant rats fed SRD was lower than that of rats fed CD due to fewer fetuses per litter and lower fetal and placental weights. The SRD enhanced plasma glucose and insulin concentrations in virgin but not in pregnant rats; plasma triglycerides and FFA concentrations and the rate of triglyceride secretion into the plasma were higher in pregnant than in virgin rats fed SRD, but the increase in liver triglycerides due to SRD was higher in virgin rats. Both removal rate of a fat emulsion and adipose tissue lipoprotein lipase activity (LPL) were lower in virgin rats fed SRD than in those fed CD. They were lower in pregnant than in virgin rats fed CD. Placental and fetal liver triglyceride concentration and placental LPL were higher in rats fed SRD than in those fed CD. Both the increased triglyceride secretion by the liver and the decreased triglyceride removal from blood resulting in maternal hypertriglyceridemia may contribute to the negative effect of SRD on the developing fetus.

KEY WORDS: • sucrose • pregnancy • triglycerides • rats • lipoprotein lipase

¹ Supported in part by the Programa de Cooperación con Iberoamérica between the Department of Bicohemistry, School of Biochemistry, University of Santa Fe, Argentina, and the School of Sciences and Department of Research, University of San Pablo-CEU and Hospital Ramón y Cajal, Madrid, Spain, sponsored by the Ministry of Education and Sciences of Spain.

² The costs of publication of this article were defrayed in part by the payment of page charges. This article must therefore be hereby marked "advertisement" in accordance with 18 USC section 1734 solely to indicate this fact.

³ To whom correspondence and reprint requests should be addressed.

Manuscript received 11 January 1996. Revision accepted 2 July 1996.