FGF19 and myeloid sarcoma: In addition to the negative correlation of FGF19 with MS and HbA1c (r = –0.357, P = 0.028) in Turkish patients reported by Barutcuoglu et al. [13], another study of Czech participants by Stejskal et al. demonstrated a negative correlation of FGF19 with glucose (r = –0.350, P<0.01) and a positive correlation with HDL-c (r = 0.24, P = 0.045) [7].