although lipids and apolipoprotein b-48 were present intracellularly , no lipoprotein-like particles were observed by electron microscopy in the endoplasmic reticulum , the golgi apparatus , or in the intercellular spaces of intestinal biopsies obtained in the fasted ( m. p. and s. l. ) or fed state ( s. l. ) .
C0023779
lipids
C0023820
lipoprotein