No abstract

These results show no evidence for the preferential absorption of medium-chain fatty acids directly via the portal vein in this model. We suggest that further studies be done to measure directly portal vein absorption of the medium-chain fatty acids.

No abstract

These results suggest that in this model of SIT, fat absorption via the mesenteric duct is reduced, but that compensatory collaterals form into the retroperitoneal lymphatics. There was no evidence of any significant increase in portal venous uptake of fatty acids after SIT, nor of preferential absorption of medium-chain fatty acids. These results may have implications for patients after SIT.

Relationships have been investigated between gene transcript abundance, enzyme activities and storage product accumulation in developing maize (Zea maysL.) kernels from 10 to 55 days postpollination (DPP). At the early stages of kernel development, there was very little increase in dry weight but kernels accumulated high concentrations of sugars and amino acids. At the end of this ‘lag’ phase (at 15 DPP), many transcripts appeared with little evidence of their translation. The initiation of the kernel-fill period at 20 DPP was characterized by a sudden rise in total RNA, increases in enzyme activities, and the initiation of storage product accumulation. Zein accumulation during this phase was highly correlated with α-zein transcript abundance. Starch accumulation was correlated with both the activity of ADP-GIc pyrophosphorylase and the abundance of gene transcripts encoding this enzyme (Shrunken-2andBrittle-2). DNA content of kernels increased linearly up to 30 DPP as a result of endoreplication, but had no apparent relationship to gene expression. DNA may accumulate as a storage product. Kernel-fill terminated when the moisture content fell below 36% and was marked by a decline of transcripts and a reduction of enzyme activities.