COL17A1 and Stroke: In anti-BP180 autoantibody-positive subjects, the values were also higher in the stroke group (37.55 RU/mL, range 20.56‒209.90 RU/mL) compared with the control group (32.18 RU/mL, range 20.25‒191.33 RU/mL) (p < 0.001) (Table 1, Fig. 1b).