Malformations in maxillary incisors: case report of radicular palatal groove.

This report describes malformations of anterior teeth and a case of a palatal radicular groove in an upper lateral incisor with periodontal complications. The patient was first diagnosed with an endodontic problem. Endodontic treatment alone failed to resolve the pain.

Transglutaminase activity in the eye: cross-linking in epithelia and connective tissue structures.

Purpose: To assess the distribution of transglutaminase (TGase) activity in ocular tissues and the target structures for cross-linking.

Methods: Cryosections from human and cynomolgus monkey eyes were incubated with the biotinylated amine donor substrate cadaverine (biotC), which was subsequently visualized with streptavidin-peroxidase. Confocal laser scanning was used to colocalize biotC and fibrillin, a major component of elastic microfibrils and the zonular fibers in particular.