CYP7A1 and myasthenia gravis: The expression of SREBP‐1C protein in the MG group was considerably higher than that in the NG group (p < .05), while the expression of CYP7A1 protein in the MG group were considerably lower than that in the NG group (p < .05); the expression of SREBP‐1C protein in the PG and IOP‐A groups were considerably lower than that in the MG group (p < .05), while the expression of CYP7A1 protein in the PG and IOP‐A groups were considerably higher than that in the MG group (p < .05; Figure 8).