Fig. 5.

Measuring changes in flow rate, viscosity, and TG content postprandially. A: flow rate for the control rats can be measured thanks to the fact that there is large inherent contrast between lymphocytes and the surrounding lymph. Similar measurements cannot be made, however, on the lipid-infused rats. Flow rate in control rats (infused with saline) does not significantly change upon infusion; n = 5, error bars represent SD. B: a more detailed view of A where each rat is plotted individually to show the large intra-animal variability. C: mesenteric duct flow rate and lymph TG both increase upon duodenal lipid infusion. D: viscosity increases with an increase in lipid content. E: average lymph viscosity when an anticoagulant is added to the samples is ∼1.04 ± 0.2 cP with an average peak of ∼1.14 ± 0.13 cP. F: peak viscosity increases after lipid infusion compared with fasting lymph.