Figure 2: Hydrogen gas therapy impact on subarachnoid hemorrhage (SAH) grade and neurological function 24 hours after SAH. Note: (A) SAH grade. There was no significant difference between air and hydrogen gas therapy at 24 hours. (B) Neurological test. Left-forelimb placement was improved with hydrogen gas therapy. Data represent the mean ± SD (n = 6 in sham group, 5 in SAH + air group, and 4 in SAH + hydrogen group). *P < 0.05, vs. sham group (one-way analysis of variance followed by post-hoc Tukey’s test).