However, other motor symptoms in the advanced stage showed negative correlations with plasma levels of TGF-β1, and higher levels were associated with lower tapping intensity of both upper limbs (p = 0.03, R = −0.47) and less severe dystonia of the trunk (p = 0.04, R = 0.45) and lower limb (p = 0.04, R = 0.44). The gene discussed is TGFB1; the disease is Dystonia.