Figure 5From: Progesterone produces antinociceptive and neuroprotective effects in rats with microinjected lysophosphatidic acid in the trigeminal nerve root The morphological changes in the trigeminal nerve root following treatment of progesterone. Luxol fast blue stained light micrographs reveal the attenuation of demyelination of axonal portion of the trigeminal nerve root compared with vehicle-injected root after daily treatment of progesterone (16 mg/kg/day). Scale bar, 50 μm.Back to article page