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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
30/12/2016 |
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Data da última atualização: |
29/12/2017 |
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Autoria: |
SEPÚLVEDA, R V.; VALENTE, F. L.; REIS, E. C. C.; ARAÚJO, F. R.; ELEOTÉRIO R. B.; QUEIROZ, P. V. S.; BORGES, A. P. B. |
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Afiliação: |
RODRIGO V. SEPÚLVEDA, UFV; FABRÍCIO L. VALENTE, UFV; EMILY C. C. REIS, UFV; FABIANA R ARAÚJO, UFV; RENATO B. ELEOTÉRIO, UFV; PAULO V. S. QUEIROZ, UFV; ANDRÉA P. B. BORGES, UFV. |
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Título: |
Bacterial cellulose and bacterial cellulose/polycaprolactone composites as tissue substitutes in rabbits' cornea. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 36, n. 10, p. 986-992, out. 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
In order to test the performance of bacterial cellulose/polycaprolactone composite (BC/PCL) and pure bacterial cellulose (BC) as tissue substitutes in rabbits? cornea, a superficial ulcer containing 5mm in diameter and 0.2mm deep was made in the right cornea of 36 rabbits, then a interlayer pocket was created from the basis of this ulcer. Twelve rabbits received BC/PCL membrane and 12 were treated with BC membranes, both membranes with 8mm in diameter. The remaining rabbits received no membrane constituting the control group. The animals were clinically followed up for 45 days. Three animals of each group were euthanized at three, seven, 21, and 45 days after implantation for histological examination of the cornea along with the implant. Clinical observation revealed signs of moderate inflammatory process, decreasing from day 20th in the implanted groups. Histology showed absence of epithelium on the membranes, fibroplasia close to the implants, lymph inflammatory infiltrate with giant cells, collagen disorganization, with a predominance of immature collagen fibers in both groups with implants. Although inflammatory response is acceptable, the membranes used does not satisfactorily played the role of tissue substitute for the cornea during the study period. |
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Palavras-Chave: |
Bacterial cellulose; Bacterial cellulose/polycaprolactone composite; Biomaterial; Celulose bacteriana; Corneal ulcer; Engenharia de tecido; Modelo animal; Tissue substitutes; Úlcera de córnea. |
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Thesagro: |
Coelho. |
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Thesaurus Nal: |
Animal models; Biocompatible materials; Cornea; Gluconacetobacter xylinus; Rabbits; Tissue engineering. |
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Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/152581/1/Bacterial-cellulose-and-bacterial.pdf
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Marc: |
LEADER 02466naa a2200385 a 4500
001 2059677
005 2017-12-29
008 2016 bl uuuu u00u1 u #d
100 1 $aSEPÚLVEDA, R V.
245 $aBacterial cellulose and bacterial cellulose/polycaprolactone composites as tissue substitutes in rabbits' cornea.$h[electronic resource]
260 $c2016
520 $aIn order to test the performance of bacterial cellulose/polycaprolactone composite (BC/PCL) and pure bacterial cellulose (BC) as tissue substitutes in rabbits? cornea, a superficial ulcer containing 5mm in diameter and 0.2mm deep was made in the right cornea of 36 rabbits, then a interlayer pocket was created from the basis of this ulcer. Twelve rabbits received BC/PCL membrane and 12 were treated with BC membranes, both membranes with 8mm in diameter. The remaining rabbits received no membrane constituting the control group. The animals were clinically followed up for 45 days. Three animals of each group were euthanized at three, seven, 21, and 45 days after implantation for histological examination of the cornea along with the implant. Clinical observation revealed signs of moderate inflammatory process, decreasing from day 20th in the implanted groups. Histology showed absence of epithelium on the membranes, fibroplasia close to the implants, lymph inflammatory infiltrate with giant cells, collagen disorganization, with a predominance of immature collagen fibers in both groups with implants. Although inflammatory response is acceptable, the membranes used does not satisfactorily played the role of tissue substitute for the cornea during the study period.
650 $aAnimal models
650 $aBiocompatible materials
650 $aCornea
650 $aGluconacetobacter xylinus
650 $aRabbits
650 $aTissue engineering
650 $aCoelho
653 $aBacterial cellulose
653 $aBacterial cellulose/polycaprolactone composite
653 $aBiomaterial
653 $aCelulose bacteriana
653 $aCorneal ulcer
653 $aEngenharia de tecido
653 $aModelo animal
653 $aTissue substitutes
653 $aÚlcera de córnea
700 1 $aVALENTE, F. L.
700 1 $aREIS, E. C. C.
700 1 $aARAÚJO, F. R.
700 1 $aELEOTÉRIO R. B.
700 1 $aQUEIROZ, P. V. S.
700 1 $aBORGES, A. P. B.
773 $tPesquisa Veterinária Brasileira, Rio de Janeiro$gv. 36, n. 10, p. 986-992, out. 2016.
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Embrapa Unidades Centrais (AI-SEDE) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
13/05/2005 |
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Data da última atualização: |
13/05/2005 |
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Autoria: |
BRITO, M. de F.; TOKARNIA, C. H.; DÖBEREINER, Jürgen. |
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Título: |
A toxidez de diversas lantanas para bovinos e ovinos no Brasil. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 24, n. 3, p. 153-159, jul./set. 2004. |
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Idioma: |
Português |
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Notas: |
The toxicity of diverse lantanas for cattle and sheep in Brasil.
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Conteúdo: |
Experiments on the toxicity of lantana spp for cattle and sheep revealed similar situation as is reported form Austrália. neither all lantana species nor all varieties which occur in Brazil are poisonous. Lantana samples collected at Boa Vista (Roraima), Castanhal (Pará), Cárceres (Mato Grosso), Serra Talhada (Pernambuco), Cabo Frio and Quatis (Rio de Janeiro), and Canoinhas (Santa Catarina) were toxic. All the other lantana samples, collected at Cruzeiro do Sul (Acre), Castanha (Pará), Chapada dos Guimarães and Lambari d'Oeste (Mato Grosso ), Jaguaribe (Ceará), Vitória da Conquista and Wanderley (Bahia), Vitória (Espirito Santo), Vassouras , Parati and Itaguaí(Rio de Janeiro) revealed experimentally as non-toxic at a dose of 40g/kg. In all casesthe lethal dose was 40g/kg, with two exceptions: the sample collected at Canoinha (Santa Catarina) was much more toxic (10g/kg) and the one from Serra Talhada (Pernambuco) was much less toxic, as this last sample caused lethal poisoning only at a dosageof 40g/kg/day given during 30days. Histoties about the observation ofphotosensitization in cattle due to the ingestion of lantana spp were obtained at Serra Talhada (Pernambuco), Cáceres (Mato Grosso), Cabo Frio and Quantis (Rio de Janeiro), and Canoinhas (Santa Catarina). No correlation could be established between the colour of the flowers of lantana spp and the toxicity of the plants. This confirms reports from Australia that the toxic potential of the lantana species is not necessarily related to the colour of their flowers.
Neste estudo sobre a toxidez das lantanas para bovinos e ovinos, verificou-se situação semelhante á que ocorrer na Austrália, que nem todas as espécies de Lantana e nem todos a taxa de lantana camara que ocorrem no Brasil, são tóxicos. Verificou-se, que foram tóxicas amostras de lantanas procedentes de Boa Vista (RO), Castanhal (PA), Cáceres (MT), Serra Talhada (PE), Cabo Frio (RJ), e Canoinhas (SC). Outros amostras procedentes de Cruzeiro DO Sul (ACRE), Castanhal (PA), Chapada dos Guimarães e Lambari d'Oeste (MT), Jaguaribe (CE), Vitória da Conquista e wanderley (BA), Vitória (ES), Vassouras, Parati e Itaguaí (RJ) não revelaram toxidez nas doses administradas(40 g/kg). A dose letal das amostras submetidas à experimentação no Brasil foi bastante constante (40g/kg), com duas exceções: as folhas frescas da lantana procedente de Canoinha (SC) foram muito mais tóxicas (10g/kg) e as folhas frescas e as dessecadas da lantama de Serra Talha (PE) foram muito menos tóxicas, pois somente causaram intoxicação não-letal com a dose de 40g/kg dia administradas durante 30 dias. Históricos sobre a observação de fotossensibilização em bovinos, ligados à ingestão de lantana foram obtidos em Serra Talhada(PE), Cáceres(MT), Cabo Frio (RJ), Quatis (RJ) e Canoinhas (SC). Verificou-se que não é possível estabelecer uma correlação entre a cor das inflorescências das lantanas e sua toxidez, confirmando a constatação feita na Austrália, que o potencial de introxicar não está necessariamente relacionada com a cor das flores. MenosExperiments on the toxicity of lantana spp for cattle and sheep revealed similar situation as is reported form Austrália. neither all lantana species nor all varieties which occur in Brazil are poisonous. Lantana samples collected at Boa Vista (Roraima), Castanhal (Pará), Cárceres (Mato Grosso), Serra Talhada (Pernambuco), Cabo Frio and Quatis (Rio de Janeiro), and Canoinhas (Santa Catarina) were toxic. All the other lantana samples, collected at Cruzeiro do Sul (Acre), Castanha (Pará), Chapada dos Guimarães and Lambari d'Oeste (Mato Grosso ), Jaguaribe (Ceará), Vitória da Conquista and Wanderley (Bahia), Vitória (Espirito Santo), Vassouras , Parati and Itaguaí(Rio de Janeiro) revealed experimentally as non-toxic at a dose of 40g/kg. In all casesthe lethal dose was 40g/kg, with two exceptions: the sample collected at Canoinha (Santa Catarina) was much more toxic (10g/kg) and the one from Serra Talhada (Pernambuco) was much less toxic, as this last sample caused lethal poisoning only at a dosageof 40g/kg/day given during 30days. Histoties about the observation ofphotosensitization in cattle due to the ingestion of lantana spp were obtained at Serra Talhada (Pernambuco), Cáceres (Mato Grosso), Cabo Frio and Quantis (Rio de Janeiro), and Canoinhas (Santa Catarina). No correlation could be established between the colour of the flowers of lantana spp and the toxicity of the plants. This confirms reports from Australia that the toxic potential of the lantana species is not nec... Mostrar Tudo |
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Palavras-Chave: |
Bovinae; Bovines; Intoxication; Pathology; Patologia. |
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Thesagro: |
Bovino; Gado; Intoxicação Vegetal; Mamífero Domestico; Ovino; Planta Tóxica; Toxidez. |
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Thesaurus NAL: |
cattle; domestic animals; poisoning; poisonous plants; sheep; toxicity. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 04154naa a2200373 a 4500
001 1628165
005 2005-05-13
008 2004 bl --- 0-- u #d
100 1 $aBRITO, M. de F.
245 $aA toxidez de diversas lantanas para bovinos e ovinos no Brasil.
260 $c2004
500 $aThe toxicity of diverse lantanas for cattle and sheep in Brasil.
520 $aExperiments on the toxicity of lantana spp for cattle and sheep revealed similar situation as is reported form Austrália. neither all lantana species nor all varieties which occur in Brazil are poisonous. Lantana samples collected at Boa Vista (Roraima), Castanhal (Pará), Cárceres (Mato Grosso), Serra Talhada (Pernambuco), Cabo Frio and Quatis (Rio de Janeiro), and Canoinhas (Santa Catarina) were toxic. All the other lantana samples, collected at Cruzeiro do Sul (Acre), Castanha (Pará), Chapada dos Guimarães and Lambari d'Oeste (Mato Grosso ), Jaguaribe (Ceará), Vitória da Conquista and Wanderley (Bahia), Vitória (Espirito Santo), Vassouras , Parati and Itaguaí(Rio de Janeiro) revealed experimentally as non-toxic at a dose of 40g/kg. In all casesthe lethal dose was 40g/kg, with two exceptions: the sample collected at Canoinha (Santa Catarina) was much more toxic (10g/kg) and the one from Serra Talhada (Pernambuco) was much less toxic, as this last sample caused lethal poisoning only at a dosageof 40g/kg/day given during 30days. Histoties about the observation ofphotosensitization in cattle due to the ingestion of lantana spp were obtained at Serra Talhada (Pernambuco), Cáceres (Mato Grosso), Cabo Frio and Quantis (Rio de Janeiro), and Canoinhas (Santa Catarina). No correlation could be established between the colour of the flowers of lantana spp and the toxicity of the plants. This confirms reports from Australia that the toxic potential of the lantana species is not necessarily related to the colour of their flowers. Neste estudo sobre a toxidez das lantanas para bovinos e ovinos, verificou-se situação semelhante á que ocorrer na Austrália, que nem todas as espécies de Lantana e nem todos a taxa de lantana camara que ocorrem no Brasil, são tóxicos. Verificou-se, que foram tóxicas amostras de lantanas procedentes de Boa Vista (RO), Castanhal (PA), Cáceres (MT), Serra Talhada (PE), Cabo Frio (RJ), e Canoinhas (SC). Outros amostras procedentes de Cruzeiro DO Sul (ACRE), Castanhal (PA), Chapada dos Guimarães e Lambari d'Oeste (MT), Jaguaribe (CE), Vitória da Conquista e wanderley (BA), Vitória (ES), Vassouras, Parati e Itaguaí (RJ) não revelaram toxidez nas doses administradas(40 g/kg). A dose letal das amostras submetidas à experimentação no Brasil foi bastante constante (40g/kg), com duas exceções: as folhas frescas da lantana procedente de Canoinha (SC) foram muito mais tóxicas (10g/kg) e as folhas frescas e as dessecadas da lantama de Serra Talha (PE) foram muito menos tóxicas, pois somente causaram intoxicação não-letal com a dose de 40g/kg dia administradas durante 30 dias. Históricos sobre a observação de fotossensibilização em bovinos, ligados à ingestão de lantana foram obtidos em Serra Talhada(PE), Cáceres(MT), Cabo Frio (RJ), Quatis (RJ) e Canoinhas (SC). Verificou-se que não é possível estabelecer uma correlação entre a cor das inflorescências das lantanas e sua toxidez, confirmando a constatação feita na Austrália, que o potencial de introxicar não está necessariamente relacionada com a cor das flores.
650 $acattle
650 $adomestic animals
650 $apoisoning
650 $apoisonous plants
650 $asheep
650 $atoxicity
650 $aBovino
650 $aGado
650 $aIntoxicação Vegetal
650 $aMamífero Domestico
650 $aOvino
650 $aPlanta Tóxica
650 $aToxidez
653 $aBovinae
653 $aBovines
653 $aIntoxication
653 $aPathology
653 $aPatologia
700 1 $aTOKARNIA, C. H.
700 1 $aDÖBEREINER, Jürgen.
773 $tPesquisa Veterinária Brasileira, Rio de Janeiro$gv. 24, n. 3, p. 153-159, jul./set. 2004.
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