Effects of a He-Ne laser on the expression of heat shock protein 70 and CyclinD_1 in gastric mucosa cells of rats with chronic atrophic gastritis
10.3760/cma.j.issn.0254-1424.2009.11.005
- VernacularTitle:氦-氖激光对慢性萎缩性胃炎大鼠胃黏膜细胞热休克蛋白70及细胞周期蛋白D_1表达的影响
- Author:
Xuehui SHAO
;
Jianguo WANG
;
Jie DAI
;
Aihua BAO
;
Yueping YANG
- Publication Type:Journal Article
- Keywords:
Gastritis;
Chronic atrophic gastritis;
Heat shock protein 70;
CyclinD_1;
He-Ne lasers
- From:
Chinese Journal of Physical Medicine and Rehabilitation
2009;31(11):734-736
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the effects of He-Ne laser irradiation dosage on the expression of heat shock protein ( HSP70) and CyclinD_1 in rats with chronic atrophic gastritis ( CAG). Method Fifty-two adult male Wistar rats were randomly divided into five groups: a normal control group, model group and three groups receiving different doses of He-Ne laser irradiation. CAC was induced using an enema of 2% sodium salicylate and 30% alcohol combined with irregular fasting and forced exercise as pathogenic factors. Laser irradiation was applied for 20 days (large dose 6.24 J/cm~2 , medium dose 4. 80 J/cm~2, small dose 3. 36 J/cm~2). The changes in HSP70 and CyclinD_1 expression were observed. Results The expression of HSP70 and CylinD_1 were highest in the normal control group and the small dose laser group. Compared with the model group, the average expression of HSP70 and CyclinD_1 increased significantly in the small dose group. Conclusions Irradiation with a He-Ne laser at 3. 36 J/cm~2 provides good adjuvant therapeutic effect for CAG in rats. After irradiation, the expression of HSP 70 and CyclinD_1 increased. HSP is important in improving mucosal defenses and promoting cell proliferation in CAG, and it can be promoted through small doses of He-Ne laser irradiation.
