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Cerqueira NF, Yoshida WB, Müller SS, Sequeira JL, de Rodrigues AC, Padovani CR. Morphological and biomechanical study of abdominal aorta of rats submitted to experimental chronic alcoholism. Acta Cir Bras 2005; 20:213-8. [PMID: 16033179 DOI: 10.1590/s0102-86502005000300004] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
PURPOSE: To assess the influence of experimental chronic alcoholism in the morphology and biomechanics of the aorta, in a rat model. METHODS: Forty-four Wistar rats were randomly divided into two groups of 22 animals each: in the alcoholism group, the rats received water mixed to increasing concentrations of ethyl alcohol; and control group: the rats received pure water for 180 days. The animals were then killed by an overdose of pentobarbital and the abdominal aortas were excised for histological (hematoxylin-eosin, Masson, Calleja, and Picrosirius red stain), histomorphometrical, and biomechanical analysis. RESULTS: Histology and histomorphometry did not show differences in aorta morphology of both groups. Biomechanical analysis showed a significantly greater yield point elongation in the alcoholic rat group (p<0.05). CONCLUSION: Chronic alcoholism did not cause morphological alterations in the aortic wall but increased elongation, without modifying any other mechanical properties.
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Affiliation(s)
- Nereide Freire Cerqueira
- Departamento de Cirurgia e Anestesiologia Veterinária, Faculdade de Medicina Veterinária e Zootecnia de Botucatu, School of Veterinary Medicine and Animal Science, UNESP-São Paulo State University, Botucatu.
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