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Bovine bone matrix action associated with morphogenetic protein in bone defects in rats submitted to alcoholism / Acción de la matriz ósea bovina asociada a la proteína morfogenéticaen defectos óseos en ratones sometidos a alcoholismo
Buchaim, Rogério Leone; Andreo, Jesus Carlos; Rodrigues, Antonio de Castro; Buchaim, Daniela Vieira; Roque, Domingos Donizeti; Roque, José Sidney; Rosa Júnior, Geraldo Marco.
  • Buchaim, Rogério Leone; University of São Paulo. Bauru School of Dentistry. Departament of Biological Science. Bauru. BR
  • Andreo, Jesus Carlos; University of São Paulo. Bauru School of Dentistry. Departament of Biological Science. Bauru. BR
  • Rodrigues, Antonio de Castro; University of São Paulo. Bauru School of Dentistry. Departament of Biological Science. Bauru. BR
  • Buchaim, Daniela Vieira; University of Marília. Marília. BR
  • Roque, Domingos Donizeti; University of Marília. Marília. BR
  • Roque, José Sidney; University of Marília. Marília. BR
  • Rosa Júnior, Geraldo Marco; Sacredt Heart University. Bauru. BR
Int. j. morphol ; 30(1): 266-271, mar. 2012. ilus
Article in English | LILACS | ID: lil-638798
ABSTRACT
Extended excessive alcohol use causes changes in bone tissue, thus affecting osteogenesis. The objective of this study was to evaluate if demineralized bone matrix (Gen-ox®) associated with bone morphogenetic protein (Gen-pro®) changes bone neoformation in rats submitted to experimental alcoholism. Forty male rats (Rattus norvegicus) were separated into 2 groups of 20 animals each Group E1, which received ethyl alcohol at 25 percent and had the surgical cavity filled in only with blood clot; and Group E2, which received ethyl alcohol at 25 percent and had the surgical cavity filled in with demineralized bovine cortical bone associated with bone morphogenetic protein. The animals were submitted to a three-week period of gradual adaptation to alcohol, and then continued receiving alcohol at 25 percent for 90 days, when the surgical cavity was made. After the surgery, the animals continued consuming alcohol until reaching the sacrifice periods of 10, 20, 40, and 60 days, when the tibias were removed for histological processing. Results showed that surgical cavity repair and bone marrow reorganization occurred faster in Group E1 than in Group E2. At the end of the experiment, it was observed that animals in Group E2 had thick bony trabeculae surrounding the implanted material particles and a small area of connective tissue in the surface region. In conclusion, the implanted material did not accelerate bone neoformation, rather it served as a structure for osteogenesis.
RESUMEN
El abuso prolongado del alcohol produce alteraciones en el tejido óseo, interfiriendo en el proceso de la osteogénesis. El estudio tiene como objetivo evaluar si la matriz ósea bovina desmineralizada (Gen-ox®) asociada a la proteína morfogenética ósea (Gen-pro®) altera la neoformación ósea en ratones sometidos a alcoholismo experimental. Fueron utilizados 40 ratones machos (Rattus norvegicus), separados en dos grupos de 20 animales cada uno Grupo E1, que recibió alcohol etílico a 25 por ciento con cavidad quirúrgica rellenada solamente por coágulo sanguíneo, y Grupo E2, que recibió sólo alcohol etílico a 25 por ciento con cavidad quirúrgica rellenada con hueso bovino desmineralizado cortical asociado a proteína morfogenética ósea. Después de 3 semanas de adaptación gradual al alcohol, los animales continuaron recibiéndolo en concentración de 25 por ciento por 90 días, cuando fue realizada la cavidad quirúrgica. Luego de la cirugía, los animales continuaron la ingestión alcohólica hasta los períodos de sacrificio de 10, 20, 40 y 60 días, cuando las tibias fueron removidas para su procesamiento histológico. Los resultados mostraron que en el Grupo E1 hubo reparación de la cavidad quirúrgica y reorganización de la médula ósea en un menor lapso temporal que en el Grupo E2. En el período final del experimento, se observó en los animales del Grupo E2 la presencia de trabéculas óseas espesas alrededor de las partículas de material implantado y pequeña área de tejido conjuntivo en la región superficial. Se puede concluir en que el material implantado no aceleró el proceso de neoformación ósea, sirviendo como estructura de base para generar osteogénesis.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Osteogenesis / Alcoholism / Bone Morphogenetic Protein 1 Type of study: Risk factors Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2012 Type: Article Affiliation country: Brazil Institution/Affiliation country: Sacredt Heart University/BR / University of Marília/BR / University of São Paulo/BR

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Full text: Available Index: LILACS (Americas) Main subject: Osteogenesis / Alcoholism / Bone Morphogenetic Protein 1 Type of study: Risk factors Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2012 Type: Article Affiliation country: Brazil Institution/Affiliation country: Sacredt Heart University/BR / University of Marília/BR / University of São Paulo/BR