Submit Manuscript  

Article Details


Mitigation of Radiation-induced Gastrointestinal System Injury using Resveratrol or Alpha-lipoic Acid: A Pilot Histopathological Study

[ Vol. 19 , Issue. 4 ]

Author(s):

Bagher Farhood, Gholamreza Hassanzadeh, Peyman Amini, Dheyauldeen Shabeeb, Ahmed Eleojo Musa, Ehsan Khodamoradi, Mehran Mohseni, Akbar Aliasgharzadeh, Habiballah Moradi and Masoud Najafi*   Pages 413 - 424 ( 12 )

Abstract:


Aim: In this study, we aimed to determine possible mitigation of radiationinduced toxicities in the duodenum, jejunum and colon using post-exposure treatment with resveratrol and alpha-lipoic acid.

Background: After the bone marrow, gastrointestinal system toxicity is the second critical cause of death following whole-body exposure to radiation. Its side effects reduce the quality of life of patients who have undergone radiotherapy. Resveratrol has an antioxidant effect and stimulates DNA damage responses (DDRs). Alpha-lipoic acid neutralizes free radicals via the recycling of ascorbic acid and alpha-tocopherol.

Objective: This study is a pilot investigation of the mitigation of enteritis using resveratrol and alpha-lipoic acid following histopathological study.

Methods: 60 male mice were randomly assigned to six groups; control, resveratrol treatment, alpha-lipoic acid treatment, whole-body irradiation, irradiation plus resveratrol, and irradiation plus alpha-lipoic acid. The mice were irradiated with a single dose of 7 Gy from a cobalt-60 gamma-ray source. Treatment with resveratrol or alpha-lipoic acid started 24 h after irradiation and continued for 4 weeks. All mice were sacrificed after 30 days for histopathological evaluation of radiation-induced toxicities in the duodenum, jejunum and colon.

Results and Discussion: Exposure to radiation caused mild to severe damages to vessels, goblet cells and villous. It also led to significant infiltration of macrophages and leukocytes, especially in the colon. Both resveratrol and alpha-lipoic acid were able to mitigate morphological changes. However, they could not mitigate vascular injury.

Conclusion: Resveratrol and alpha-lipoic acid could mitigate radiation-induced injuries in the small and large intestine. A comparison between these agents showed that resveratrol may be a more effective mitigator compared to alpha-lipoic acid.

Keywords:

Alpha-lipoic acid, gastrointestinal system, intestine, mitigation, radiation, resveratrol.

Affiliation:

Department of Medical Physics and Radiology, Faculty of Paramedical Sciences, Kashan University of Medical Sciences, Kashan, Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Department of Radiology, Faculty of Paramedical, Tehran University of Medical Sciences, Tehran, Department of Physiology, College of Medicine, University of Misan, Misan, Department of Medical Physics, Tehran University of Medical Sciences, Tehran, Department of Radiology and Nuclear Medicine, Kermanshah University of Medical Sciences, Kermanshah, Department of Medical Physics and Radiology, Faculty of Paramedical Sciences, Kashan University of Medical Sciences, Kashan, Department of Medical Physics and Radiology, Faculty of Paramedical Sciences, Kashan University of Medical Sciences, Kashan, Department of Medical Physics and Radiology, Faculty of Paramedical Sciences, Kashan University of Medical Sciences, Kashan, Department of Radiology and Nuclear Medicine, Kermanshah University of Medical Sciences, Kermanshah

Graphical Abstract:



Read Full-Text article