Authors: Sonali Bhalla Safrun Mahmood Akhtar Mahmood
Publish Date: 2004/01/06
Volume: 43, Issue: 2, Pages: 109-115
Abstract
Alcohol consumption by pregnant animals and humans leads to general growth impairment in their offspring delayed growth and multiple birth defects collectively called “Fetal Alcohol Syndrome” In utero exposure of ethanol to rat pups causes damage to their developing intestinal epithelium which leads to impairment of nutrient assimilation and growth retardation during postnatal developmentTo determine the effect of prenatal exposure of ethanol on the postnatal development of rat intestinal Na+dependent and independent Dglucose transporter along with the amino acids glycine and Lleucine transporter activity at 4 8 14 20 and 30 days of postnatal age The changes in the expression levels of Na+dependent glucose transporter SGLT1 mRNA was assessed at different days of postnatal age in rat pupsWistar strain albino female rats were fed ethanol at a dose of 2 g/kg body weight/day orally by Ryle’s tube for one month before mating and during the entire period of gestation while the control females received isocaloric glucose Transport studies were performed using the everted intestine of 4 8 14 20 and 30 dayold control and ethanolexposed pups employing the tissue accumulation method The expression of SGLT1 mRNA at different days of postnatal age in control and ethanolexposed rat pups was determined using a Northern Blot analysisPrenatal exposure of ethanol to rat pups leads to a decrease in their body weight intestinal length and weight and reduces the uptake capacities of SGLT1 as well as energy dependent glycine and Lleucine transporters with respect to their agematched controls However the mRNA levels of SGLT1 remained unaltered in the ethanolexposed pups at all ages of postnatal development compared to their controlsThese findings suggest that in utero exposure to ethanol leads to a general delay in the postnatal development of the intestine of ethanolexposed rat pups affecting mainly the development of intestinal energy dependent Dglucose and amino acid glycine and Lleucine transporters
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