SLC19A2 and Thiamine deficiency: The authors found that, in addition to an increased expression of thiamine transporter 1 (THTR1) and decreased expression of thiamine phosphokinase (TPK1), the thiamine deficiency‐dependent oxidative stress triggered an increase in reactive oxygen species (ROS) production and oxidation of free ‐SH groups, associated to an irreversible accumulation of diphosphothiamine in the disulfide form.