Mast cell stabilizator and antioxidant effects of epidermal growth factor (EGF) on gastric mucosal injury induced by ethanol in rats.
The role of epidermal growth factor (EGF), a polypeptide containing 53 amino acids, on protection and repair of ethanol-induced gastric mucosal injury was investigated in rats. In addition, the effects of EGF on the gastric damage were evaluated histopathologically. We used 48 Spraque-Dawley rats which were divided into [corrected] three groups as control rats, ethanol treated rats and ethanol+EGF treated rats. The ethanol group was given a gastric gavage containing 1 ml of 80% ethanol (v/v) prepared in distilled water. EGF (100 microg/kg) was given by intragastric gavage 30 min before the administration of ethanol. We studied histopathological evaluation and the histochemical heterogeneity of mast cells and its degree of degranulation. Besides, gastric tissue malondialdehyde (MDA), protein sulfhydryl groups (SH), and protein carbonyl levels were measured. EGF treatment stabilized mast cells degranulation and had lower polymorphonuclear leukocytes (PMNL) infiltration, ulcer index, histamine, and MDA; protein carbonyl levels were also lower, compared to the non-treated animals. EGF exerts a protective effect on gastric mucosa to ethanol-induced gastric injury probably through antioxidant and mast cell stabilizing mechanism.
Osmangazi University, Medical Faculty, Department of General Surgery, Eskisehir, Turkey. serkasap@ogu.edu.tr
Serdar
S
Erkasap
Nilufer
N
Erkasap
Erinc
E
Aral
Tulay
T
Koken
Ahmet
A
Kahraman
Yasemin
Y
Aydin
Sezgin
S
Yilmaz
Ersin
E
Ates
D000818:Animals; D000975:Antioxidants / Q000494:pharmacology*; D004815:Epidermal Growth Factor / Q000494:pharmacology*; D000431:Ethanol / Q000633:toxicity*; D005260:Female; D005753:Gastric Mucosa / Q000187:drug effects* / Q000473:pathology; D006636:Histamine Release / Q000187:drug effects; D015227:Lipid Peroxidation / Q000187:drug effects; D008297:Male; D008407:Mast Cells / Q000187:drug effects* / Q000378:metabolism; D009504:Neutrophils / Q000187:drug effects / Q000502:physiology; D051381:Rats; D017207:Rats, Sprague-Dawley
D000975:Antioxidants; D000431:Ethanol; D004815:Epidermal Growth Factor