FUT1 and dacryoadenitis: Although NOD.H-2h4 mice show insignificant increases in dacryoadenitis with age (Fig. 3) with a concomitant increase in stimulated tear secretion (Fig. 4A), NOD.H-2h4 DKO mice demonstrate robust increases in dacryoadenitis with age (Fig. 3) and corresponding decreases in stimulated tear production (Fig. 4).