遗传性牙龈纤维瘤病中结缔组织的超微结构特征

Ultrastructural aspects of connective tissue in hereditary gingival fibromatosis.

作者信息

Barros S P, Merzel J, de Araújo V C, de Almeida O P, Bozzo L

机构信息

Department of Morphology, Faculty of Odontology, University of Campinas, São Paulo, Brazil.

出版信息

Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2001 Jul;92(1):78-82. doi: 10.1067/moe.2001.115026.

DOI:10.1067/moe.2001.115026

PMID:11458249

Abstract

OBJECTIVE

The purpose of this study was to analyze the ultrastructure of gingival connective tissue from patients in one family affected by hereditary gingival fibromatosis (HGF).

STUDY DESIGN

Electron microscopic examination was performed with gingival tissue from 10 patients from a Brazilian family with 132 members. Fifty of 96 persons at risk for this disorder were affected, which is consistent with an autosomal dominant pattern of inheritance.

RESULTS

The extracellular matrix showed flocculent material and collagen fibrils with structural abnormalities and variation in diameter. Increased numbers of oxytalan fibers were identified; however, elastic fibers were rare in the analyzed areas.

CONCLUSIONS

The structural alterations found in HGF appear similar to those described in certain other heritable collagen disorders, suggesting that HGF should be included in the group of hereditary diseases in which connective tissue alterations have a distinct pattern, in contrast to reactive fibrotic gingival enlargements with no genetic component.

摘要