Additionally, comparing the grouped (−) and (+) against the grouped (+ +), (+ + +), and (+ + + +) in the score for the frequency of positive cells, statistical analysis using two-sided Fisher's exact test showed the following; AT-8 (Control vs. AD: p = 0.0079, Control vs. Kii ALS/PDC: p = 0.0278), 8-NG (Control vs. AD: p = 0.1667, Control vs. Kii ALS/PDC: p = 0.0152, iNOS (Control vs. AD: p = 0.0476, Control vs. Kii ALS/PDC: p = 0.0152), NF-κB (Control vs. AD: p = 0.1667, Control vs. Kii ALS/PDC: p = 0.0808), and 8-OHdG (Control vs. AD: p = 0.1667, Control vs. Kii ALS/PDC: p = 0.0808). Here, NOS2 is linked to Alzheimer disease.