Figure 3 GABA receptor plasticity in the spinal cord at all levels. (a) Immunohistochemical slides of the spinal cord of experimental animals stained for GABA receptors at ×40. GABA receptors were expressed in both anterior and posterior horns of the spinal cord at all levels. (b) GABA receptor immunopositive cell counts in the posterior horn of the spinal cord of experimental animals. There was a steady decline in the number of expression in the ligated animals and those treated with GABA receptor agonist (LIG, LIG+GABA) compared with the control.