Interestingly, we found an association between the glucose tolerance test area under the curve (GTT-AUC) and levels of MBP area density when pooling both sexes (linear regression, r2 = 0.2365, p = 0.0017), wherein worse glucose intolerance was associated with lower myelin coverage (Fig. 2D). The gene discussed is MBP; the disease is Glucose intolerance.