Late histopathological findings in the thoracic irradiation: A preliminary study in the animal model
A. Takavar1, B. Minaei1, GH. Hadadi2, S. Khoei1, S. Refahi1,3*, Z. Behrouzkia4, M. Pourissa5, G. Ghamami1
1Tehran University of Medical Sciences, Tehran, Iran.
2Fasa University of Medical Sciences, Fasa, Iran.
3Ardebil University of Medical Sciences, Ardebil, Iran.
4Urmia University of Medical Sciences, Urmia, Iran.
5Neurosciences research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
Corresponding Author: email@example.com
Abstract: To investigate late histopathological alterations in rat lung cells following single-dose of irradiation. Methods and materials: The thoracic cage of entire lung of Wistar rats was exposed to 17 Gy 60Co gamma rays. The animals were sacrificed at 32 weeks after irradiation. The lungs were dissected and blinded histopathological evaluation was performed.Results: When the lungs were removed at 32 weeks after whole thoracic irradiation, histopathologically inflammation and mononuclear infiltrate in the interstitium, Intraalveolar hemorrhages, dilatation in the alveolar space with alterations of the alveolar wall, congestion of the dilated vessels, foam and dust cells and superimposed collagen were noted in all animals.Conclusion: At the end of the histological examination, it was seen that all of the animals had severe superimposed collagen and a large fibrous area. We conclude that, in the rat lung model with single dose of 17 Gy, the most interesting finding in this study was in the expression of late fibrosis.
[A. Takavar, B. Minaei, GH. Hadadi, S. Khoei, S. Refahi, Z. Behrouzkia, M. Pourissa, G. Ghamami. Late histopathological findings in the thoracic irradiation: A preliminary study in the animal model. Life Sci J 2013;10(7s):583-585] (ISSN:1097-8135). http://www.lifesciencesite.com. 92
Keywords: Thoracic irradiation, Lung histopathology, Pulmonary fibrosis.