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      Distribuição comparativa dos glicosaminoglicanos em artérias e veias de diferentes mamíferos Translated title: Comparative distribution of glycosaminoglycans in arteries and veins of different mammals

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          Abstract

          Foi realizada análise comparativa sobre a distribuição dos glicosaminoglicanos de artérias e veias em ratos, cachorros e humanos. Os nossos resultados demonstraram que dermatam sulfato foi o principal glicosaminoglicano encontrado tanto para as artérias quanto para as veias estudadas. Entretanto, a proporção de dermatam sulfato foi maior nas veias do que nas artérias nas três espécies analisadas. Este aumento pode estar associado às diferenças estruturais e funcionais encontradas na parede destes dois tipos de vasos sangüíneos (nas veias a pressão sangüínea é significativamente mais baixa). Além disso, a quantidade total dos glicosaminoglicanos foi maior nas artérias do que nas veias, sendo as maiores concentrações encontradas nas aortas independentemente da espécie animal estudada. Estes achados abrem perspectiva para o melhor conhecimento das alterações das macromoléculas que possam estar relacionadas ao processo degenerativo vascular, especialmente nas transformações estruturais que as veias safenas sofrem, quando empregadas como enxertos na revascularização do miocárdio.

          Translated abstract

          A comparative analysis of the glycosaminoglycan distribution in arteries and veins of humans, rats and dogs was realized. The results showed that the glycosaminoglycan distribution of the arteries was similar to that of venous tissues, where dermatan sulfate was the main glycosaminoglycan found. However, the proportion of dermatan sulfate is significantly greater in venous than in arterial tissues, in the three species. The total amount of the glycosaminoglycans was significantly higher in arteries than in veins, and the highest contents were found in the aortas. These increases may be associated with structural differences of the wall of these two types of blood vessels walls. The blood pressure is significantly lower in venous tissues and veins may exhibit less compressibility than arterial. These findings open perspectives for a better understanding of biochemical changes that could be related to the progressive degenerative vascular process, especially in the structural changes that saphenous veins undergo, when used as grafts in myocardial revascularization.

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          Most cited references35

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          Electrophoretic behaviour of acidic mucopolysaccharides in diamine buffers.

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            Proteoglycans in cell regulation.

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              The interaction of lipids and lipoproteins with the intercellular matrix of arterial tissue: its possible role in atherogenesis.

              G Camejo (1981)
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                rbccv
                Brazilian Journal of Cardiovascular Surgery
                Braz. J. Cardiovasc. Surg.
                Sociedade Brasileira de Cirurgia Cardiovascular (São José do Rio Preto )
                1678-9741
                October 1999
                : 14
                : 4
                : 325-330
                Affiliations
                [1 ] Fundação Pró-Sangue Hemocentro de São Paulo Brazil
                [2 ] Universidade de São Paulo Brazil
                [3 ] Universidade Federal de São Paulo Brazil
                Article
                S0102-76381999000400007
                10.1590/S0102-76381999000400007
                dff5b03d-bdaf-49ff-9674-57f3dcbe281d

                http://creativecommons.org/licenses/by/4.0/

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                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0102-7638&lng=en
                Categories
                CARDIAC & CARDIOVASCULAR SYSTEMS
                SURGERY

                Surgery,Cardiovascular Medicine
                Glicosaminoglicanos,Glicosaminoglycans,Arteries,Veins,Artérias,Veias
                Surgery, Cardiovascular Medicine
                Glicosaminoglicanos, Glicosaminoglycans, Arteries, Veins, Artérias, Veias

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