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      Linfedema primário congênito em bovinos Red Angus Translated title: Primary congenital lymphedema in Red Angus cattle

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          Abstract

          Casos de linfedema congênito foram observados acometendo 12 terneiros cruza Red Angus na região Central do Rio Grande do Sul. Os terneiros afetados apresentavam graus variáveis de edema subcutâneo ao nascimento, envolvendo principalmente os membros pélvicos, mas também outras regiões do corpo. A injeção de solução a 5% de azul de metileno no espaço interdigital dos membros pélvicos de três terneiros afetados e um controle, indicaram uma interrupção no fluxo da linfa, sugerindo uma falha dos linfáticos periféricos distais em contactar os troncos centrais. Na necropsia de três terneiros afetados, edema subcutâneo foi observado de modo variável nos membros pélvicos, prepúcio e abdômen ventral. Não foi observado edema nas cavidades orgânicas. Em dois casos, observou-se hipoplasia dos linfonodos poplíteos associadas à dilatação dos vasos linfáticos. Testes de DNA demonstraram que todos os terneiros afetados nasceram de vacas inseminadas pelo mesmo touro, sugerindo uma base genética para a doença. Levando em consideração que uma pequena porcentagem de terneiros nasceram de vacas inseminadas pelo touro suspeito, é provável que um modo autossômico recessivo esteja envolvido na hereditariedade da doença.

          Translated abstract

          Cases of congenital lymphedema were observed affecting 12 cross Red Angus calves from the central region of the state of Rio Grande do Sul, Brazil. Affected calves presented variable degrees of subcutaneous edema at birth, involving mainly the hind limbs but also other body regions. The injection of methylene blue dye in 5% solution into the interdigital space of the hind limbs of three affected calves and one normal control indicated an interruption of the lymph flow in the affected calves; this suggests a failure of the distal peripheral lymphatics to connect with the central trunks. At necropsy of three affected calves subcutaneous edema was variably observed in the hind limbs, prepuce and ventral abdomen. Edema of body cavities was not observed. In two cases there was hipoplasia of the popliteal lymph nodes associated to dilatation of lymphatic vessels. DNA tests demonstrated that all affected calves were born from cows sired by the same bull suggesting an inherited basis for the disease. Considering the small percentage of affected calves born from cows sired by the suspect bull it is probable that an autosomal recessive mode of inheritance is involved.

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          CONGENITAL HEREDITARY LYMPHOEDEMA.

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            Genetical analysis of the incidence dropsical calves in herds of ayrshire cattle

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              Congenital Hereditary Lymphoedema in the Dog Part II--Pathological Studies

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                pvb
                Pesquisa Veterinária Brasileira
                Pesq. Vet. Bras.
                Colégio Brasileiro de Patologia Animal - CBPA (Rio de Janeiro )
                1678-5150
                September 2009
                : 29
                : 9
                : 713-718
                Affiliations
                [1 ] Universidade Federal de Santa Maria Brazil
                [2 ] Universidade Federal de Santa Maria Brazil
                [3 ] Universidade Federal de Santa Maria Brazil
                Article
                S0100-736X2009000900006
                10.1590/S0100-736X2009000900006
                16093c3f-1eb7-4563-bcdb-79abaa9146ec

                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=0100-736X&lng=en
                Categories
                VETERINARY SCIENCES

                General veterinary medicine
                Diseases of cattle,primary lymphedema,inheritable diseases,Doenças de bovinos,linfedema primário,doenças hereditárias

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