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Nmr Analyses Show Tcdd Elicits Differences In Hepatic Metabolism In Female C57bl/6 Mice And Sprague-Dawley Rats, Meghan Katherine Makley
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TCDD (2,3,7,8-tetrachlorodibenzo-p-dioxin) elicits tissue-, sex-, and species-specific effects. This study compares the hepatic response to an oral dose of TCDD in immature ovariectomized (i.o.) C57BL/6 mice (30 µg/kg) and i.o. Sprague-Dawley rats (10 µg/kg), at 72, 120, and 168 h post-dose. Hepatic lipid extracts were analyzed by 13C and 31P NMR, and aqueous extracts by 1H and 31P NMR.
Consistent with increased lipid content in mice (p≤0.05), TCDD induced increases in hepatic triacylglycerides (TAG), cholesterol, and fatty acids. Principal component analysis of 13C ...