highly significantP = 0.0005
Histology and immunohistochemistry On HE stained sections (sagittal and coronal), treated and untreated cords differed dramatically: vacuolization due to tissue injury (cysts) was minimal in treated cords [ Figure 2 ; a1 and b1], with a highly significant difference with controls, a sign of the neuroprotective effects of PEG [ Figure 3a ; P = 0.0005].