Fig. 4

CSF tau protein levels in limb onset of ALS and bulbar onset of ALS patients and controls. Comparison of tau protein levels (ng/l) in cerebrospinal fluid among individuals with limb-onset ALS, bulbar-onset ALS, and the control group. The distribution of measured values was represented using box plots (the horizontal line inside the box represents the median, the lower edge of the box represents the first quartile, the upper edge represents the third quartile, whiskers indicate the maximum and minimum measured values, and if outliers were found in the dataset, they are plotted as circles). ALS, amyotrophic lateral sclerosis; CG, control group, CSF, cerebrospinal fluid