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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
18/07/2007 |
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Data da última atualização: |
18/01/2024 |
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Autoria: |
BRANDÃO, C. V. S.; RANZINI, J. J. T.; RODRIGUES, G. N.; MARINHO, L. F. L. P.; PEIXOTO, T. P.; CREMONINI, D. N.; LIMA, L. S. A.; CHIURCIU, J. L. V.; TEIXEIRA, C. R. |
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Título: |
Espessura e densidade de células endoteliais corneanas em ovinos. |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
Archives of Veterinary Science, v. 11, n. 1, p. 16-18, 2006. |
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DOI: |
DOI: http://dx.doi.org/10.5380/avs.v11i1.5624 |
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Idioma: |
Português |
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Conteúdo: |
Resumo: A córnea é transparente, sendo suas principais funções a transmissão e a refração da luz. Compreende quatro camadas, dentre elas, o endotélio corneano, que é constituído por uma única camada de células hexagonais interligadas, formando uma barreira entre o estroma corneano e o humor aquoso, limitando a entrada de água e solutos oriundos da câmara anterior para o estroma. Portanto, uma densidade mínima é necessária para manter a transparência e a funcionalidade corneanas. Objetivou-se determinar a densidade de células endoteliais e a espessura corneanas, utilizando-se microscopia especular de não contato, em 22 olhos provenientes de 11 ovinos. A média de densidade celular endotelial corneana foi de 2726 céls/mm2 e a espessura 654 µm. Os machos apresentaram médias de densidades superiores e áreas celulares inferiores em relação às fêmeas. [The cornea is transparent layer of the eye, transmission and refraction of light being their main functions]. Abstract: The endothelium, one of the cornea four layers, is a hexagonal unicellular layer that forms a barrier between the stroma and aqueous humor, obstructing the entrance of water and others solutes from the anterior chamber towards the stroma. In the regard to it, a minimum density of these cells is necessary to maintain the performance and clarity of the eye visual capacity. The main objective of the present research was the determination of the density of endothelial cells and their corneal thickness, using a noncontact specular microscope, in 22 eyes from 11 ovines. The average density of the endothelial corneal was 2726 cels/mm² and the thickness 654 µm. The males displayed a higher average density and a smaller cell area than the females. MenosResumo: A córnea é transparente, sendo suas principais funções a transmissão e a refração da luz. Compreende quatro camadas, dentre elas, o endotélio corneano, que é constituído por uma única camada de células hexagonais interligadas, formando uma barreira entre o estroma corneano e o humor aquoso, limitando a entrada de água e solutos oriundos da câmara anterior para o estroma. Portanto, uma densidade mínima é necessária para manter a transparência e a funcionalidade corneanas. Objetivou-se determinar a densidade de células endoteliais e a espessura corneanas, utilizando-se microscopia especular de não contato, em 22 olhos provenientes de 11 ovinos. A média de densidade celular endotelial corneana foi de 2726 céls/mm2 e a espessura 654 µm. Os machos apresentaram médias de densidades superiores e áreas celulares inferiores em relação às fêmeas. [The cornea is transparent layer of the eye, transmission and refraction of light being their main functions]. Abstract: The endothelium, one of the cornea four layers, is a hexagonal unicellular layer that forms a barrier between the stroma and aqueous humor, obstructing the entrance of water and others solutes from the anterior chamber towards the stroma. In the regard to it, a minimum density of these cells is necessary to maintain the performance and clarity of the eye visual capacity. The main objective of the present research was the determination of the density of endothelial cells and their corneal thickness, using a noncontac... Mostrar Tudo |
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Palavras-Chave: |
Densidade celular; Espessura córnea; Microscopia especular. |
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Thesagro: |
Olho; Ovino; Visão. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02640naa a2200301 a 4500
001 1532827
005 2024-01-18
008 2006 bl uuuu u00u1 u #d
024 7 $aDOI: http://dx.doi.org/10.5380/avs.v11i1.5624$2DOI
100 1 $aBRANDÃO, C. V. S.
245 $aEspessura e densidade de células endoteliais corneanas em ovinos.$h[electronic resource]
260 $c2006
520 $aResumo: A córnea é transparente, sendo suas principais funções a transmissão e a refração da luz. Compreende quatro camadas, dentre elas, o endotélio corneano, que é constituído por uma única camada de células hexagonais interligadas, formando uma barreira entre o estroma corneano e o humor aquoso, limitando a entrada de água e solutos oriundos da câmara anterior para o estroma. Portanto, uma densidade mínima é necessária para manter a transparência e a funcionalidade corneanas. Objetivou-se determinar a densidade de células endoteliais e a espessura corneanas, utilizando-se microscopia especular de não contato, em 22 olhos provenientes de 11 ovinos. A média de densidade celular endotelial corneana foi de 2726 céls/mm2 e a espessura 654 µm. Os machos apresentaram médias de densidades superiores e áreas celulares inferiores em relação às fêmeas. [The cornea is transparent layer of the eye, transmission and refraction of light being their main functions]. Abstract: The endothelium, one of the cornea four layers, is a hexagonal unicellular layer that forms a barrier between the stroma and aqueous humor, obstructing the entrance of water and others solutes from the anterior chamber towards the stroma. In the regard to it, a minimum density of these cells is necessary to maintain the performance and clarity of the eye visual capacity. The main objective of the present research was the determination of the density of endothelial cells and their corneal thickness, using a noncontact specular microscope, in 22 eyes from 11 ovines. The average density of the endothelial corneal was 2726 cels/mm² and the thickness 654 µm. The males displayed a higher average density and a smaller cell area than the females.
650 $aOlho
650 $aOvino
650 $aVisão
653 $aDensidade celular
653 $aEspessura córnea
653 $aMicroscopia especular
700 1 $aRANZINI, J. J. T.
700 1 $aRODRIGUES, G. N.
700 1 $aMARINHO, L. F. L. P.
700 1 $aPEIXOTO, T. P.
700 1 $aCREMONINI, D. N.
700 1 $aLIMA, L. S. A.
700 1 $aCHIURCIU, J. L. V.
700 1 $aTEIXEIRA, C. R.
773 $tArchives of Veterinary Science$gv. 11, n. 1, p. 16-18, 2006.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
18/03/2009 |
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Data da última atualização: |
08/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
BRITO, J. R. F.; SANTOS, E. M. P.; ARCURI, E. F.; LANGE, C. C.; BRITO, M. A. V. P.; SOUZA, G. N.; CERQUEIRA, M. M. O. P.; BELTRAN, J. M. S.; CALL, J. E.; LIU, Y.; PORTO-FETT, A. C. S.; LUCHANSKY, J. B. |
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Afiliação: |
José Renaldi Feitosa Brito, Embrapa Gado de Leite; Emília Maricato Pedro dos Santos, UFMG; Edna Froeder Arcuri, Embrapa Gado de Leite; Carla Christine Lange, Embrapa Gado de Leite; Maria Aparecida Vasconcelos Paiva e Brito, Embrapa Gado de Leite; Guilherme Nunes de Souza, Embrapa Gado de Leite; Mônica Maria Oliveira Pinho Cerqueira, UFMG; J. Marcela Soto Beltran Centro de Investigación en Alimentación y Desarrolo Unidad Culiacán Mexico; Jeffrey E. Call U.S. Department of Agriculture ARS Eastern Regional Research Center MFSRU Wyndmoor Pennsylvania; Yanhong Liu U.S. Department of Agriculture ARS Eastern Regional Research Center MFSRU Wyndmoor Pennsylvania; Anna C. S. Porto-Fett U.S. Department of Agriculture ARS Eastern Regional Research Center MFSRU Wyndmoor Pennsylvania; John B. Luchansky U.S. Department of Agriculture ARS Eastern Regional Research Center MFSRU Wyndmoor Pennsylvania. |
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Título: |
Retail survey of Brazilian milk and minas frescal cheese and a contaminated dairy plant to establish prevalence, relatedness, and sources of listeria monocytogenes isolates. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Applied and Environmental Microbiology, v. 74, n. 15, p. 4954-4961, 2008. |
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DOI: |
https://doi.org/10.1128/AEM.01828-07 |
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Idioma: |
Inglês |
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Conteúdo: |
A study was designed to recover Listeria monocytogenes from pasteurized milk and Minas frescal cheese (MFC) sampled at retail establishments (REs) and to identify the contamination source(s) of these products in the corresponding dairy processing plant. Fifty milk samples (9 brands) and 55 MFC samples (10 brands) were tested from REs located in Juiz de Fora, Minas Gerais, Brazil. All milk samples and 45 samples from 9 of 10 MFC brands tested negative for L. monocytogenes; however, “brand F” of MFC obtained from REs 119 and 159 tested positive. Thus, the farm/plant that produced brand F MFC was sampled; all samples from the milking parlor tested negative for L. monocytogenes, whereas several sites within the processing plant and the MFC samples tested positive. All 344 isolates recovered from retail MFC, plant F MFC, and plant F environmental samples were serotype 1/2a and displayed the same AscI or ApaI fingerprints. Since these results established that the storage coolers served as the contamination source of the MFC, plant F was closed so that corrective renovations could be made. Following renovation, samples from sites that previously tested positive for the pathogen were collected from the processing environment and from MFC on multiple visits; all tested negative for L. monocytogenes. In addition, on subsequent visits to REs 159 and 119, all MFC samples tested negative for the pathogen. Studies are ongoing to quantify the prevalence, levels, and types of L. monocytogenes in MFC and associated processing plants to lessen the likelihood of listeriosis in Brazil. MenosA study was designed to recover Listeria monocytogenes from pasteurized milk and Minas frescal cheese (MFC) sampled at retail establishments (REs) and to identify the contamination source(s) of these products in the corresponding dairy processing plant. Fifty milk samples (9 brands) and 55 MFC samples (10 brands) were tested from REs located in Juiz de Fora, Minas Gerais, Brazil. All milk samples and 45 samples from 9 of 10 MFC brands tested negative for L. monocytogenes; however, “brand F” of MFC obtained from REs 119 and 159 tested positive. Thus, the farm/plant that produced brand F MFC was sampled; all samples from the milking parlor tested negative for L. monocytogenes, whereas several sites within the processing plant and the MFC samples tested positive. All 344 isolates recovered from retail MFC, plant F MFC, and plant F environmental samples were serotype 1/2a and displayed the same AscI or ApaI fingerprints. Since these results established that the storage coolers served as the contamination source of the MFC, plant F was closed so that corrective renovations could be made. Following renovation, samples from sites that previously tested positive for the pathogen were collected from the processing environment and from MFC on multiple visits; all tested negative for L. monocytogenes. In addition, on subsequent visits to REs 159 and 119, all MFC samples tested negative for the pathogen. Studies are ongoing to quantify the prevalence, levels, and types of L. monocytogen... Mostrar Tudo |
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Palavras-Chave: |
Contamination sources; Minas frescal cheese. |
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Thesaurus NAL: |
pasteurized milk. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/596295/1/Retail-survey-of-brazilian-milk-and-minas-frescal-cheese.pdf
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Marc: |
LEADER 02608naa a2200301 a 4500
001 1596295
005 2024-02-08
008 2008 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1128/AEM.01828-07$2DOI
100 1 $aBRITO, J. R. F.
245 $aRetail survey of Brazilian milk and minas frescal cheese and a contaminated dairy plant to establish prevalence, relatedness, and sources of listeria monocytogenes isolates.$h[electronic resource]
260 $c2008
520 $aA study was designed to recover Listeria monocytogenes from pasteurized milk and Minas frescal cheese (MFC) sampled at retail establishments (REs) and to identify the contamination source(s) of these products in the corresponding dairy processing plant. Fifty milk samples (9 brands) and 55 MFC samples (10 brands) were tested from REs located in Juiz de Fora, Minas Gerais, Brazil. All milk samples and 45 samples from 9 of 10 MFC brands tested negative for L. monocytogenes; however, “brand F” of MFC obtained from REs 119 and 159 tested positive. Thus, the farm/plant that produced brand F MFC was sampled; all samples from the milking parlor tested negative for L. monocytogenes, whereas several sites within the processing plant and the MFC samples tested positive. All 344 isolates recovered from retail MFC, plant F MFC, and plant F environmental samples were serotype 1/2a and displayed the same AscI or ApaI fingerprints. Since these results established that the storage coolers served as the contamination source of the MFC, plant F was closed so that corrective renovations could be made. Following renovation, samples from sites that previously tested positive for the pathogen were collected from the processing environment and from MFC on multiple visits; all tested negative for L. monocytogenes. In addition, on subsequent visits to REs 159 and 119, all MFC samples tested negative for the pathogen. Studies are ongoing to quantify the prevalence, levels, and types of L. monocytogenes in MFC and associated processing plants to lessen the likelihood of listeriosis in Brazil.
650 $apasteurized milk
653 $aContamination sources
653 $aMinas frescal cheese
700 1 $aSANTOS, E. M. P.
700 1 $aARCURI, E. F.
700 1 $aLANGE, C. C.
700 1 $aBRITO, M. A. V. P.
700 1 $aSOUZA, G. N.
700 1 $aCERQUEIRA, M. M. O. P.
700 1 $aBELTRAN, J. M. S.
700 1 $aCALL, J. E.
700 1 $aLIU, Y.
700 1 $aPORTO-FETT, A. C. S.
700 1 $aLUCHANSKY, J. B.
773 $tApplied and Environmental Microbiology$gv. 74, n. 15, p. 4954-4961, 2008.
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