New experimental model of exposure to environmental tobacco smoke
PURPOSE: To describe a new model to passive smoking for rodents. METHODS: Twenty rats were distributed into two study groups (N=10): control group (CG), that was not exposed to tobacco smoke and used as normal standard for biochemical and histological analysis; Experimental Group (EG), that Animals were exposed to the passive smoking; Euthanasia was performed after 14 days of exposure. The serum level of nicotine and histological analysis were performed. RESULTS: There was a statistical difference on the nicotine serum levels between Experimental and Control group, with level of 286 ±23 nanograma/mL in the EG and undetectable on CG (p<0.01). The histological study suggested the model efficacy producing alveolar destruction and emphysema in the EG compared with the insignificant lesions in the CG's lung. CONCLUSION: The model of exposure to environmental tobacco smoke for rodents induced easily the changes related to secondhand smoke.
| Main Authors: | , , , , , , |
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| Format: | Digital revista |
| Language: | English |
| Published: |
Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia
2013
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| Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502013001200002 |
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