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  • Title: Sucrose-rich feeding during rat pregnancy-lactation and/or after weaning alters glucose and lipid metabolism in adult offspring.
    Author: D'Alessandro ME, Oliva ME, Ferreira MR, Selenscig D, Lombardo YB, Chicco A.
    Journal: Clin Exp Pharmacol Physiol; 2012 Jul; 39(7):623-9. PubMed ID: 22612392.
    Abstract:
    1. Adverse fetal and early life environments predispose to the development of metabolic disorders in adulthood. The present study examined whether offspring of normal Wistar dams fed a high-sucrose diet (SRD) developed impaired lipid and glucose homeostasis when fed a control diet (CD) after weaning. In addition, we investigated whether there were more pronounced derangements in lipid and glucose homeostasis when offspring of SRD-fed Wistar were fed an SRD after weaning compared with those in offspring of CD-fed dams weaned on an SRD. 2. During pregnancy and lactation, female rats were fed either an SRD or CD. After weaning, half the male offspring from both groups were fed a CD or SRD, up to 100 days of age (CD-CD, CD-SRD, SRD-SRD and SRD-CD groups). 3. Final bodyweight was similar between all groups, although offspring of SRD-fed dams had lighter bodyweight at birth. Plasma lipid and glucose levels were significantly higher (P < 0.05) without changes in insulin levels in the CD-SRD, SRD-SRD and SRD-CD groups compared with the CD-CD group. Dyslipidaemia in the CD-SRD and SRD-SRD groups resulted from increased secretion of very low-density lipoprotein triacylglycerol, as well as decreased triacylglycerol (TAG) clearance that was associated with increased liver TAG content (P < 0.05) compared with the CD-CD group. The hypertriglyceridaemia observed in the SRD-CD group was mostly associated with decreased TAG clearance. Altered glucose and insulin tolerance were observed when the SRD was fed during any period of life. 4. These data support the hypothesis that early life exposure to SRD is associated with changes in lipid and glucose metabolism, leading to an unfavourable profile in adulthood, regardless of whether offspring consumed an SRD after weaning.
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