Original scientific paper

The effects of epidermal growth factor deficiency on rat gingival epithelia.

Muzaffer Aydýn Ketaný ; Department of Histology and Embryology, Veterinary Medicine Faculty, University of Dicle, Diyarbakýr, Turkey
Ahmet Dað ; Department of Periodontology, Dentistry Faculty, University of Dicle, Diyarbakýr, Turkey
Ali Ýhsan Zengýngül ; Department of Prostodontics, Dentistry Faculty, University of Dicle, Diyarbakýr, Turkey
Hüseyin Büyükbayram ; Department of Pathology, Medical Faculty, University of Dicle, Diyarbakýr, Turkey
Davut Özbað ; Department of Anatomy, Veterinary Medicine Faculty, University of Dicle, Diyarbakýr, Turkey

Abstract

Epidermal growth factor (EGF) is a low molecular mass polypeptide with 53 amino acids and is known to stimulate cell proliferation and differentiation in a wide range of tissues. EGF is thought to have important functions in epithelial growth and differentiation and in wound healing. In the present study, the teratogenic effects of sialoadenectomy on rat gingival epithelia were investigated histologically. Twenty adult female Wistar albino rats were divided into two groups (N = 10), a control and an experimental group. The experimental group was subjected to sialoadenectomy in order to create EGF deficiency. After 60 days of sialoadenectomy (EGF deficiency), control group rats were killed using pentobarbital and their maxilla removed. The sections were stained with haematoxylineosin and Mason triple for evaluation by using a light microscope. A statistically significant reduction in body mass was noted in rats in the experimental group when compared to the control group. Decreasing the thickness of keratization layer, irregularity and disappearance of microscopic papilla, intraepithelial focal cystic lesions resulting from EGF deficiency, and a decrease in saliva, were noted. As a result, epidermal growth factor deficiency performed by sialoadenectomy caused body mass reduction and gingival epithelia abnormalities.

Keywords

epidermal growth factor; sialoadenectomy; gingival epithelia

Hrčak ID:

84689

URI

https://hrcak.srce.hr/84689

Publication date:

21.4.2001.

Article data in other languages: croatian

Visits: 1.419 *