Subjects will have study procedures prior to treatment and 48 weeks post-treatment, these include upper and/or lower endoscopies, to measure changes in immune responses and studies to evaluate physiologic measures of gut function at 48 weeks, as well as routine safety monitoring throughout the study. Gut absorption tests will be performed at the Week 24 visit. Variables will include safety (adverse event rate), clinical (weight, stool frequency, results of gut absorption tests), and laboratory (lymphocyte and cytokine assays) parameters for descriptive summary statistical analysis (n, mean, median, standard deviation, minimum and maximum range).