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Vascular and stromal changes in irradiated and recovering rat thymus

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Vascular and stromal changes in irradiated and recovering rat thymus.pdf(3.85 MB)
Date
1999
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Authors
Wang, Y.L. ; Tokuda, N. ; Tamechika, M. ; Hashimoto, N. ; Yamauchi, M. ; Kawamura, H. ; Irifune, T. ; Choi, M. ; Awaya, A. ; Sawada, T. ; Fukumoto, T.
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Publisher
Murcia : F. Hernández
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DOI
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info:eu-repo/semantics/article
Description
Abstract
To analyze the mechanisms responsible for thymocyte proliferation, maturation and migration in the thymus, the rat thymus just after, and recovering from irradiation was studied morphologically. The vascular structures of the rat thymus after a radiation dose of 6 Gy were found to be destroyed on day 3, but had recovered to almost normal by day 7, suggesting that the abrupt recovery of thymus structure after irradiation was due primarily to this change in vascular structure. Furthermore, the epithelial tissues in the thymic cortex appeared to contribute to this abrupt proliferation, and possibly to the abrupt maturation of thymocytes, while medullary epithelial tissues remained sparse and appeared inactive for a relatively long period. These findings are considered important for understanding the interrelationship between thymic epithelial cells and thymocytes with respect to thymocyte proliferation, maturation and migration.
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Thymus , Vascular structure
Citation
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http://hdl.handle.net/10201/19211
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Histology and histopathology Vol.14, nº 3 (1999)
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