[Effects of He-Ne laser on gastric mucosa in rat with chronic atrophic gastritis].

Abstract

This study sought to explore the effects of He-Ne laser irradiation on the gastric mucosa of experimental chronic atrophic gastritis (CAG) in rat. Fifty-two male adult Wistar rats were randomly divided into five groups including normal control group, model group and three different doses He-Ne laser groups. The CAG model in rats was made by administering (per gastrogavage) a compositus liquor, including 2% sodium salicylate and 30% alcohol, for 8 weeks to stimulate the rat's gastric mucosa, combined with irregular fasting and compulsive sporting as pathogenic factors. He-Ne laser therapy was used at different doses of He-Ne laser, once a day for twenty days, then the morphological changes and the expression of cyclinD1 were observed. Compared with untreated group, the gastric mucosa of 3.36J x cm(-2) He-Ne laser group was significantly thicker (P < 0.01), the inflammatory cells of gastric mucosa were decreased (P < 0.05), the morphology, structure and volume of the cells were restored or nearly normal and the expressions of cyclinD1 were higher (P < 0.05). In a word, small dose He-Ne laser (3.36 J x cm(-2)) has a good adjuvant therapeutic effect on rat's CAG.

• Authors: Yueping Yang, Jianguo Wang, Xuehui Shao, Jie Dai
• Journal: Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi (Sheng Wu Yi Xue Gong Cheng Xue Za Zhi) Vol. 22 Issue 5 Pg. 926-9 (Oct 2005) ISSN: 1001-5515 [Print] China
• PMID: 16294723 (Publication Type: English Abstract, Journal Article, Research Support, Non-U.S. Gov't)

Topics

• Animals
• Chronic Disease
• Gastric Mucosa (pathology, radiation effects)
• Gastritis, Atrophic (radiotherapy)
• Low-Level Light Therapy
• Male
• Precancerous Conditions (radiotherapy)
• Random Allocation
• Rats
• Rats, Wistar