Experimental model of the morphological and morphometric aspects of tissue repair in skin wounds submitted to beta radiation emitted by Strontium -90 in rats Modelo experimental dos aspectos morfológicos morfométricos da reparação tecidual de feridas cutâneas submetidas à radiação beta do Estrontio-90
The purperose of this work is tell the use of the experimental model to investigation of the effects of Beta radiation of estroncium-90 for repairing the tissue of wounds made in rats. 48 animals of the lineage EPM-1 Wistar were used, distributed in two groups that received radiation in alternate da...
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Published in: | Acta cirúrgica brasileira Vol. 19; pp. 51 - 58 |
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Format: | Journal Article |
Language: | English |
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Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia
01-12-2004
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Abstract | The purperose of this work is tell the use of the experimental model to investigation of the effects of Beta radiation of estroncium-90 for repairing the tissue of wounds made in rats. 48 animals of the lineage EPM-1 Wistar were used, distributed in two groups that received radiation in alternate days (group A) and daily (group B). Each group was divided in four groups of six rats to be analysed in the 3rd, 7th, 14th and 21st day after operation. Two incisions were made in the back of the animal and sutured immediately afterwards; the upper part was irradiated and the lower part used as control. On the dates established the irradiated and control wounds were macroscopically examined and withdrawn for preparation of the histological comparative study in the optical microscope. Following, an morphometrical analysis was performed to count leucocyts, fiberblast and colagen fibers which were submitted to statistical study.O objetivo deste trabalho é relatar o uso do modelo experimental para investigação dos efeitos da radiação Beta do Estrôncio-90 no processo de reparação tecidual de feridas provocadas em ratos. Utilizamos 48 animais da linhagem EPM-1 Wistar, distribuídos em dois grupos que receberam a radiação em dias alternados (Grupo A) e diariamente (Grupo B). Cada grupo foi subdividido em quatro, cada um com 6 ratos, para estudo no 3º, 7º, 14º e 21º dias de pós-operatório. Realizou-se duas incisões no dorso de cada animal, suturou-se em seguida, sendo que a de situação cranial foi irradiada e a caudal serviu para controle. Nas datas determinadas, as feridas controle e irradiada foram observadas macroscopicamente e retiradas para preparo do estudo histológico comparativo ao microscópico óptico. Realizou-se em seguida, análise morfométrica para contagem de leucócitos, fibroblastos e fibras colágenas, submetidos a estudo estatístico. |
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AbstractList | The purperose of this work is tell the use of the experimental model to investigation of the effects of Beta radiation of estroncium-90 for repairing the tissue of wounds made in rats. 48 animals of the lineage EPM-1 Wistar were used, distributed in two groups that received radiation in alternate days (group A) and daily (group B). Each group was divided in four groups of six rats to be analysed in the 3rd, 7th, 14th and 21st day after operation. Two incisions were made in the back of the animal and sutured immediately afterwards; the upper part was irradiated and the lower part used as control. On the dates established the irradiated and control wounds were macroscopically examined and withdrawn for preparation of the histological comparative study in the optical microscope. Following, an morphometrical analysis was performed to count leucocyts, fiberblast and colagen fibers which were submitted to statistical study.O objetivo deste trabalho é relatar o uso do modelo experimental para investigação dos efeitos da radiação Beta do Estrôncio-90 no processo de reparação tecidual de feridas provocadas em ratos. Utilizamos 48 animais da linhagem EPM-1 Wistar, distribuídos em dois grupos que receberam a radiação em dias alternados (Grupo A) e diariamente (Grupo B). Cada grupo foi subdividido em quatro, cada um com 6 ratos, para estudo no 3º, 7º, 14º e 21º dias de pós-operatório. Realizou-se duas incisões no dorso de cada animal, suturou-se em seguida, sendo que a de situação cranial foi irradiada e a caudal serviu para controle. Nas datas determinadas, as feridas controle e irradiada foram observadas macroscopicamente e retiradas para preparo do estudo histológico comparativo ao microscópico óptico. Realizou-se em seguida, análise morfométrica para contagem de leucócitos, fibroblastos e fibras colágenas, submetidos a estudo estatístico. |
Author | José Mario Camelo-Nunes Gerson Vilhena Pereira Filho Fabrício Yui |
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SubjectTerms | Beta radiation Estudo histológico Histological study Modelos animais Models, Animal Radiação beta Ratos Rats Reparação tecidual Wound healing |
Title | Experimental model of the morphological and morphometric aspects of tissue repair in skin wounds submitted to beta radiation emitted by Strontium -90 in rats Modelo experimental dos aspectos morfológicos morfométricos da reparação tecidual de feridas cutâneas submetidas à radiação beta do Estrontio-90 |
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