the distribution of fibronectin and laminin , two glycoproteins involved in the migration of neural crest cells , was studied by an indirect immunohistofluorescence technique in 35 embryos and fetuses ( from 6 weeks old to birth ) , 5 normal controls , and 6 patients with hirschsprung 's disease , in order to provide a new approach to the embryogenesis of human myenteric plexus and the pathogenesis of aganglionosis .
C0022984
laminin
C0017968
glycoproteins