The effects of palm vitamin E on stress hormone levels and gastric lesions in stress-induced rats

Ibrahim Abdel Aziz Ibrahim, Kamisah Yusof, Mohd Ismail Nafeeza, Nur Azlina Mohd Fahami

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Abstract

Introduction: This study examines the effects of palm vitamin E (PVE) or α-tocopherol (α-TF) supplementation on adrenocorticotropin hormone (ACTH), corticosterone and gastric lesions in rats exposed to water-immersion restraint stress (WIRS). Material and methods: Sixty male Sprague-Dawley rats (200-250 g) were divided into three groups. Group I: 20 rats as a control group were given a normal diet. Group II: 20 rats received oral supplementation of PVE at 60 mg/kg body weight. Group III: 20 rats received oral supplementation of α-TF at 60 mg/kg body weight. After the treatment period of 28 days, each group was further subdivided into two groups: 10 rats not exposed to stress, and the other 10 rats subjected to WIRS for 3.5 h. Blood samples were taken to measure the ACTH and corticosterone levels. The rats were then sacrificed and the stomach excised and opened along the greater curvature and examined for lesions. Results: Rats exposed to WIRS had lesions in their stomach mucosa. Our findings showed that dietary supplementation of PVE or α-TF was able to reduce gastric lesions significantly in comparison to the stressed controls. The WIRS increased plasma ACTH and corticosterone significantly. Palm vitamin E and α-TF treatments reduced these parameters significantly compared to the stressed controls. Conclusions: Supplementation with either PVE or α-TF reduces the formation of gastric lesions, probably by inhibiting the elevation of ACTH and corticosterone levels induced by stress.

Original languageEnglish
Pages (from-to)22-29
Number of pages8
JournalArchives of Medical Science
Volume8
Issue number1
DOIs
Publication statusPublished - Feb 2012

Fingerprint

Vitamin E
Stomach
Hormones
Immersion
Corticosterone
Adrenocorticotropic Hormone
Water
Body Weight
Tocopherols
Dietary Supplements
Sprague Dawley Rats
Mucous Membrane
Diet
Control Groups

Keywords

  • α-tocopherol
  • Adrenocorticotropic hormone
  • Corticosterone
  • Gastric lesions
  • Palm vitamin E
  • Water-immersion restraint stress

ASJC Scopus subject areas

  • Medicine(all)

Cite this

The effects of palm vitamin E on stress hormone levels and gastric lesions in stress-induced rats. / Ibrahim, Ibrahim Abdel Aziz; Yusof, Kamisah; Nafeeza, Mohd Ismail; Mohd Fahami, Nur Azlina.

In: Archives of Medical Science, Vol. 8, No. 1, 02.2012, p. 22-29.

Research output: Contribution to journalArticle

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