borderline significanceP = 0.07
Optical density measurements of GFRα1-IR in the sacral spinal cord 7 days after unilateral pelvic nerve transection (Table 1 ; Figures 2A,B,M ) detected a significant increase in the medial superficial dorsal horn whereas in the lateral dorsal horn the difference approached borderline significance ( P = 0.07, n = 6).