TGFB1 and type 1 diabetes mellitus: At the same time, the concentration of TGFβ1 in different stages of manifested T1D, IRS, and CR, respectively, was significantly lower compared to control subjects, too (R-T1D IRS: 5495.00 (5380–5682.50) vs CTR: 10015.00 (9737.25–10682.50) (p<0.001), CR: 4000.00 (3900–4190) vs CTR: 10015.00 (9737.25–10682.50) (p<0.001) (pg/mL)) (Table 2).