Choline DeficiencyCholineCholine KinasePhosphatidylethanolamine N-MethyltransferaseEthionineGlycerylphosphorylcholinePhosphorylcholineBetaineCholine O-AcetyltransferasePhosphatidylcholinesMethionineLiverS-AdenosylhomocysteineEthanolaminesS-AdenosylmethionineFolic AcidFatty LiverDietHemicholinium 3Cytidine Diphosphate CholineCholine DehydrogenasePregnancyRats, Sprague-Dawley