Plasma IGF-1 and IGF-1SDS values were significantly higher in the HD patients than in the controls (154.45±49.20 μg/L vs. 142.35±41.66 μg/L, p = 0.042 and 0.16±1.02 vs. 0.06±0.91, p = 0.039; respectively). Here, IGF1 is linked to Huntington disease.