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DOI 10.1177/1559325817705019

Медицинская библиотека · Dose-response : a publication of International Hormesis Society · 2017

Radiotherapy-Induced Skin Reactions Induce Fibrosis Mediated by TGF-β1 Cytokine.

de Andrade Cherley Borba Vieira, Ramos Isalira Peroba Rezende, de Moraes Alan César Nunes, do Nascimento Ana Lúcia Rosa, Salata Camila, Goldenberg Regina Coeli Dos Santos, de Carvalho Jorge José, de Almeida Carlos Eduardo Veloso

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Аннотация

PURPOSE: This study aimed to investigate radiation-induced lesions on the skin in an experimental animal model. Methods and Materials: Cutaneous wounds were induced in Wistar rats by 4 MeV energy electron beam irradiation, using a dose rate of 240 cGy/min, for 3 different doses (10 Gy, 40 Gy, and 60 Gy). The skin was observed 5, 10, and 25 days (D) after ionizing radiation exposition.

RESULTS

Infiltrate inflammatory process was observed in D5 and D10, for the 40 Gy and 60 Gy groups, and a progressive increase of transforming growth factor β1 is associated with this process. It could also be noted a mischaracterization of collagen fibers at the high-dose groups.

CONCLUSION

It was observed that the lesions caused by ionizing radiation in rats were very similar to radiodermatitis in patients under radiotherapy treatment.

ADVANCES IN KNOWLEDGE: This study is important to develop strategies to prevent radiation-induced skin reactions.

Для цитирования: de Andrade Cherley Borba Vieira, Ramos Isalira Peroba Rezende, de Moraes Alan César Nunes, do Nascimento Ana Lúcia Rosa, Salata Camila, Goldenberg Regina Coeli Dos Santos, de Carvalho Jorge José, de Almeida Carlos Eduardo Veloso. Radiotherapy-Induced Skin Reactions Induce Fibrosis Mediated by TGF-β1 Cytokine.. Dose-response : a publication of International Hormesis Society. 2017. DOI: 10.1177/1559325817705019.
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