Fructose is a simple ketonic monosaccharide found in many plants, where it is often bonded to glucose to form the disaccharide sucrose.
Fructose, at low concentrations do not cause any significant increase of Tissue factor (TF)-mRNA levels. On the contrary, higher Fructose concentrations cause increase in TF mRNA levels at 60 min, as compare to unstimulated cells. Increasing Fructose concentrations causes significant decrease of tPA-mRNA levels. SOD significantly prevents Fructose induced NF-κB activation which is associated with the parallel reduction of Fructose-induced TF expression/activity[1].
In mice fed 0% Fructose, portal (0.060±0.006 mM, overall mean for all time points) and systemic (0.030±0.003 mM) Fructose concentrations do not vary with time after feeding. In contrast, portal concentrations in wild-type mice consuming 20% Fructose increase by more than twofold from time (t)=0 to t=1 h after feeding (~0.13 mM). Likewise, systemic serum Fructose goes from 0.037 at t=0 to 0.13 mM 1 h after feeding. Fasted (t=0) serum Fructose in the 20% group is similar to postprandial concentrations in the 0% mice for both portal and systemic levels, suggesting that the baseline Fructose concentration during fasting is not affected by diet. Serum Fructose concentrations in KHK-/- mice are 5- to 100-fold greater than those in wild-type mice for the same diet, time, and sample location. Mean (for all time points) portal and systemic glucose concentrations in mice fed 20% Fructose are ~3 (P=0.004) and ~2 (P=0.04) mM greater, respectively, than those in mice fed 0%. Systemic Fructose concentrations are approximately threefold greater in KHK-/- mice fed Fructose compare with those fed glucose, but are similar between glucose- and Fructose-fed wild-type mice[2].
References:
[1]. Cirillo P, et al. Fructose induces prothrombotic phenotype in human endothelial cells : A new role for "added sugar" in cardio-metabolic risk. J Thromb Thrombolysis. 2015 Nov;40(4):444-51.
[2]. Patel C, et al. Effect of dietary fructose on portal and systemic serum fructose levels in rats and in KHK-/- and GLUT5-/- mice. Am J Physiol Gastrointest Liver Physiol. 2015 Nov 1;309(9):G779-90.