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  • Title: Preferential alcoholic embryopathy: effects of liquid diets.
    Author: Mankes RF, Battles AH, LeFevre R, van der Hoeven T, Glick SD.
    Journal: Lab Anim Sci; 1992 Dec; 42(6):561-6. PubMed ID: 1479807.
    Abstract:
    Our initial report of a preferential expression of experimental alcoholic embryopathy affecting the male offspring contiguous in utero to male siblings of Long-Evans rats was based on gavage administration of alcohol to pregnant rats without regard to isocaloric, pair-fed exposure paradigms. In this study, pregnant Long-Evans rats were given 35% ethanol-derived calories (EDC) in one of two different liquid diets: 1) a liquid alcohol diet based on Sustacal, a flavored liquid food formulated for human nutritional standards; and 2) a high-protein liquid rodent diet devised by Lieber and DeCarli (L&D). The diets were administered from day 6 to 15 of gestation. Pregnant rats were pair-fed liquid diets containing 0% EDC, but isocalorically balanced to 35% EDC with either sucrose (Sustacal) or maltose-dextrin (L&D). A fifth group of pregnant rats was given access ad libitum to standard certified laboratory rodent diet and served as free-fed controls. On day 20 of gestation, all pregnant rats were euthanized and the products of conception examined by standard teratologic techniques. Pregnant animals fed Sustacal-based diets consistently consumed fewer calories per kilogram body weight per day from day 6 to 15 of gestation (i.e., they were significantly calorie-deprived during pregnancy) as compared with the standard laboratory-diet-fed controls or those consuming L&D diets. Body weights of rats consuming Sustacal diets (both 0 and 35% EDC) were significantly lower throughout gestation when compared with all other groups. Higher (> 150 mg/dl) blood alcohol levels were attained by rats consuming 35% EDC in Sustacal diet as compared with L&D (100 mg/dl) diets.(ABSTRACT TRUNCATED AT 250 WORDS)
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