PCDH8 and Alzheimer disease: While Cdh2 (Fig. 1g; q) and Pcdh10 (Fig. 1 j; t) showed less widespread plaque staining in transgenic AD mouse brains, Cdh11 (Fig. 1h; r) and Pcdh8 (Fig. 1i; s) probes seemed to detect a much greater number of plaques.