Article Publish Status: FREE
Abstract Title:

Effect of alpha-lipoic acid on radiation-induced small intestine injury in mice.

Abstract Source:

Oncotarget. 2016 Mar 3. Epub 2016 Mar 3. PMID: 26943777

Abstract Author(s):

Bae Kwon Jeong, Jin Ho Song, Hojin Jeong, Hoon Sik Choi, Jung Hwa Jung, Jong Ryeal Hahm, Seung Hoon Woo, Myeong Hee Jung, Bong-Hoi Choi, Jin Hyun Kim, Ki Mun Kang

Article Affiliation:

Bae Kwon Jeong


PURPOSE: Radiation therapy is a highly effective treatment for patients with solid tumors. However, it can cause damage and inflammation in normal tissues. Here, we investigated the effects of alpha-lipoic acid (ALA) as radioprotection agent for the small intestine in a mouse model.

MATERIALS AND METHODS: Whole abdomen was evenly irradiated with total a dose of 15 Gy. Mice were treated with either ALA (100 mg/kg, intraperitoneal injection [i.p.]) or saline (equal volume, i.p.) the prior to radiation as 100 mg/kg/day for 3 days. Body weight, food intake, histopathology, and biochemical parameters were evaluated.

RESULTS: Significant differences in body weight and food intake were observed between the radiation (RT) and ALA + RT groups. Moreover, the number of crypt cells was higher in the ALA + RT group. Inflammation was decreased and recovery time was shortened in the ALA + RT group compared with the RT group. The levels of inflammation-related factors (i.e., phosphorylated nuclear factor kappaB and matrix metalloproteinase-9) and mitogen-activated protein kinases were significantly decreased in the ALA + RT group compared with those in the RT group.

CONCLUSIONS: ALA treatment prior to radiation decreases the severity and duration of radiation-induced enteritis by reducing inflammation, oxidative stress, and cell death.

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