The protective effect of apelin against water-immersion and restraint stress-induced gastric damage


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Izgut-Uysal V. N., Gemici B., Birsen I., Acar N., Üstünel İ.

JOURNAL OF PHYSIOLOGICAL SCIENCES, vol.64, no.4, pp.279-289, 2014 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 64 Issue: 4
  • Publication Date: 2014
  • Doi Number: 10.1007/s12576-014-0317-8
  • Journal Name: JOURNAL OF PHYSIOLOGICAL SCIENCES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.279-289
  • Keywords: Gastric mucosal injury, Apelin, APJ antagonist, F13A, Water-immersion and restraint stress, RECEPTOR MESSENGER-RNA, LIPID-PEROXIDATION, PROSTAGLANDIN E(2), OXIDATIVE STRESS, MUCOSAL LESIONS, EXPRESSION, SECRETION, RATS, GLUCOCORTICOIDS, HOMEOSTASIS
  • Akdeniz University Affiliated: Yes

Abstract

The aim of the present study was to investigate the gastroprotective effect of apelin on water-immersion and restraint stress (WIRS)-induced gastric lesions. Male Wistar rats were divided into four groups: control, WIRS, F13A + WIRS and F13A. APJ receptor antagonist F13A was administered to rats to determine the influence of apelin on stress-induced gastric injury. WIRS administered for 6 h resulted in the development of gastric mucosal lesions accompanied by a significant increase in plasma corticosterone. WIRS increased the concentration of 4-hydroxynonenol (4-HNE) + malondialdehyde (MDA) and the expression of apelin and hypoxia inducible factor-1 alpha (HIF-1 alpha) in gastric mucosa. In addition, WIRS reduced the mucosal blood flow and gastric prostaglandin E-2 (PGE(2)) concentration. Plasma corticosterone, which was increased due to stress, was significantly decreased in the F13A + WIRS group. Gastric lesions and the 4-HNE + MDA concentration were also higher in the F13A + WIRS compared to the WIRS group. We conclude that apelin has a gastroprotective effect against stress-induced lesions possibly by reducing lipid peroxidation in gastric mucosa.