SELP and type 1 diabetes mellitus: Under basal conditions, platelets from individuals with type 1 diabetes expressed significantly greater levels of CD62P compared with control participants (521 ± 246 vs 335 ± 67; p<0.001), with similar findings for PAC-1 (370 ± 165 vs 231 ± 88; p=0.011) and PS (869 ± 762 vs 294 ± 109; p=0.001; Fig. 1a–c, electronic supplementary material [ESM] Fig. 1).