The results demonstrated that MG patients had significantly higher levels of serum neurofilament protein light chain, reaching median 12.7 (IQR = 9.8;mean±SD: 16.0 ± 8.0) pg./ml, in contrast to the normal control group (IQR = 5.0; median 9.1, mean ± SD: 9.9 ± 3.5) pg./ml (p = 0.002) (Figure 1A). Here, NEFL is linked to myasthenia gravis.