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Registro Completo |
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
14/07/2014 |
Data da última atualização: |
30/03/2023 |
Tipo da produção científica: |
Documentos |
Autoria: |
FONTANA, A.; BENITES, V. de M.; PEREIRA, M. G.; ANJOS, L. H. C. dos. |
Afiliação: |
ADEMIR FONTANA, CNPS; VINICIUS DE MELO BENITES, CNPS; MARCOS GERVÁSIO PEREIRA, UFRRJ; LÚCIA HELENA CUNHA DOS ANJOS, UFRRJ. |
Título: |
Carbono orgânico e as frações húmicas em diferentes horizontes diagnósticos de solos brasileiros. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
Rio de Janeiro: Embrapa Solos, 2012. |
Páginas: |
34 p. |
Série: |
(Embrapa Solos. Documentos, 156). |
ISSN: |
1517-2627 |
Idioma: |
Português |
Conteúdo: |
Este trabalho teve por objetivo avaliar o carbono orgânico e as frações húmicas quanto à participação, as relações e a capacidade de distinção de diferentes horizontes diagnósticos de solos brasileiros. |
Palavras-Chave: |
Atributos do solo; Carbono orgânico; Frações húmicas. |
Thesagro: |
Classificação do Solo. |
Thesaurus Nal: |
Humic substances; Soil classification; Soil organic carbon. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/104971/1/Doc-156-Carbono-organico.pdf
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Marc: |
LEADER 01022nam a2200265 a 4500 001 1990474 005 2023-03-30 008 2012 bl uuuu u0uu1 u #d 022 $a1517-2627 100 1 $aFONTANA, A. 245 $aCarbono orgânico e as frações húmicas em diferentes horizontes diagnósticos de solos brasileiros.$h[electronic resource] 260 $aRio de Janeiro: Embrapa Solos$c2012 300 $a34 p. 490 $a(Embrapa Solos. Documentos, 156). 520 $aEste trabalho teve por objetivo avaliar o carbono orgânico e as frações húmicas quanto à participação, as relações e a capacidade de distinção de diferentes horizontes diagnósticos de solos brasileiros. 650 $aHumic substances 650 $aSoil classification 650 $aSoil organic carbon 650 $aClassificação do Solo 653 $aAtributos do solo 653 $aCarbono orgânico 653 $aFrações húmicas 700 1 $aBENITES, V. de M. 700 1 $aPEREIRA, M. G. 700 1 $aANJOS, L. H. C. dos
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Embrapa Solos (CNPS) |
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Registro Completo
Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
19/09/2017 |
Data da última atualização: |
29/12/2017 |
Autoria: |
CORRÊA, L. B. N. S.; CARDOZO, L. M. de F.; RIBEIRO, I. C. de A.; BOAVENTURA, G. T.; CHAGAS, M. A. |
Afiliação: |
Lanna B. N. S. Corrêa, Laboratório de Biomorfologia Celular e Extracelular/Departamento de Morfologia/Universidade Federal Fluminense - UFF; Ludmila F. M. de F. Cardozo, Laboratório de Nutrição Experimental - LabNE/Departamento de Nutrição/Universidade Federal Fluminense - UFF; Ilma C. de A. Ribeiro, Laboratório de Biomorfologia Celular e Extracelular/Departamento de Morfologia/Universidade Federal Fluminense - UFF; Gilson T. Boaventura, Laboratório de Nutrição Experimental - LabNE/Departamento de Nutrição/Universidade Federal Fluminense - UFF; Maurício A. Chagas, Laboratório de Biomorfologia Celular e Extracelular/Departamento de Morfologia/Universidade Federal Fluminense - UFF. |
Título: |
Influence of prolonged flaxseed (Linum usitatissimum) consumption over epididymis and testicle histoarchitecture of Wistar rats. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 37, n. 6, p. 650-656, jun. 2017. |
Idioma: |
Inglês |
Notas: |
Título em português: Influência do consumo prolongado de semente de linhaça (Linum usitatissimum) sobre a histoarquitetura dos testículo e epidídimo de ratos Wistar. |
Conteúdo: |
Flaxseed is considered a functional food with several health benefits. However, because of its high phytoestrogen content, flaxseed influences hormone metabolism and affects the gonadal biomorphology. In this study, computerized histomorphometry was used to evaluate seminiferous and epididymal tubules, considering the different regions of the epididymis (head, body and tail) of rats subjected to a prolonged diet of flaxseed. Young adult male Wistar rats (n=20) were divided into 2 groups during their lactation period: Control Group (CG), fed casein-based meals and Flaxseed Group (FG), fed a 25% flaxseed meal. After 250 days of continuous ingestion, the animals were euthanized and a blood sample was collected. The testicles and epididymis were removed and fixed in buffered formalin solution. The samples were subjected to routine histological paraffin techniques and stained with hematoxilin and eosin. Immunostaining was performed using an antivimentin antibody for Sertoli cell identification. For morphometry, images of the slides were scanned and analyzed using Image J to determine the epithelial height, tubular and luminal diameter and tubular and luminal area. In the hormonal evaluation, FG had a higher serum concentration of estrogen (P=0.001), but no change was observed in the concentration of testosterone. The morphometric assay of seminiferous tubules and epididymal regions revealed no significant differences between the analyzed groups. Similarly, Sertoli cell quantification showed no significant differences in the FG (P=0.98). These results revealed that the continuous and prolonged intake of 25% flaxseed meals from gestation to 250 days of age, even with a significant increase in serum levels of estradiol, does not exert adverse effects on the testicular and epididymal structure or on the cells participating in the spermatogenesis of rats. MenosFlaxseed is considered a functional food with several health benefits. However, because of its high phytoestrogen content, flaxseed influences hormone metabolism and affects the gonadal biomorphology. In this study, computerized histomorphometry was used to evaluate seminiferous and epididymal tubules, considering the different regions of the epididymis (head, body and tail) of rats subjected to a prolonged diet of flaxseed. Young adult male Wistar rats (n=20) were divided into 2 groups during their lactation period: Control Group (CG), fed casein-based meals and Flaxseed Group (FG), fed a 25% flaxseed meal. After 250 days of continuous ingestion, the animals were euthanized and a blood sample was collected. The testicles and epididymis were removed and fixed in buffered formalin solution. The samples were subjected to routine histological paraffin techniques and stained with hematoxilin and eosin. Immunostaining was performed using an antivimentin antibody for Sertoli cell identification. For morphometry, images of the slides were scanned and analyzed using Image J to determine the epithelial height, tubular and luminal diameter and tubular and luminal area. In the hormonal evaluation, FG had a higher serum concentration of estrogen (P=0.001), but no change was observed in the concentration of testosterone. The morphometric assay of seminiferous tubules and epididymal regions revealed no significant differences between the analyzed groups. Similarly, Sertoli cell quantifica... Mostrar Tudo |
Palavras-Chave: |
Células de Sertoli; Fitoestrógenos; Histomorfometria; Histomorphometry; Ratos Wistar; Túbulos seminíferos; Vimentina. |
Thesagro: |
Linhaça; Linum Usitatissimum; Semente; Testículo. |
Thesaurus NAL: |
Epididymis; Linseed; Plant estrogens; Seminiferous tubules; Sertoli cells; Testes; Vimentin. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/163970/1/Influence-of-prolonged-flaxseed.pdf
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Marc: |
LEADER 03207naa a2200397 a 4500 001 2075874 005 2017-12-29 008 2017 bl uuuu u00u1 u #d 100 1 $aCORRÊA, L. B. N. S. 245 $aInfluence of prolonged flaxseed (Linum usitatissimum) consumption over epididymis and testicle histoarchitecture of Wistar rats.$h[electronic resource] 260 $c2017 500 $aTítulo em português: Influência do consumo prolongado de semente de linhaça (Linum usitatissimum) sobre a histoarquitetura dos testículo e epidídimo de ratos Wistar. 520 $aFlaxseed is considered a functional food with several health benefits. However, because of its high phytoestrogen content, flaxseed influences hormone metabolism and affects the gonadal biomorphology. In this study, computerized histomorphometry was used to evaluate seminiferous and epididymal tubules, considering the different regions of the epididymis (head, body and tail) of rats subjected to a prolonged diet of flaxseed. Young adult male Wistar rats (n=20) were divided into 2 groups during their lactation period: Control Group (CG), fed casein-based meals and Flaxseed Group (FG), fed a 25% flaxseed meal. After 250 days of continuous ingestion, the animals were euthanized and a blood sample was collected. The testicles and epididymis were removed and fixed in buffered formalin solution. The samples were subjected to routine histological paraffin techniques and stained with hematoxilin and eosin. Immunostaining was performed using an antivimentin antibody for Sertoli cell identification. For morphometry, images of the slides were scanned and analyzed using Image J to determine the epithelial height, tubular and luminal diameter and tubular and luminal area. In the hormonal evaluation, FG had a higher serum concentration of estrogen (P=0.001), but no change was observed in the concentration of testosterone. The morphometric assay of seminiferous tubules and epididymal regions revealed no significant differences between the analyzed groups. Similarly, Sertoli cell quantification showed no significant differences in the FG (P=0.98). These results revealed that the continuous and prolonged intake of 25% flaxseed meals from gestation to 250 days of age, even with a significant increase in serum levels of estradiol, does not exert adverse effects on the testicular and epididymal structure or on the cells participating in the spermatogenesis of rats. 650 $aEpididymis 650 $aLinseed 650 $aPlant estrogens 650 $aSeminiferous tubules 650 $aSertoli cells 650 $aTestes 650 $aVimentin 650 $aLinhaça 650 $aLinum Usitatissimum 650 $aSemente 650 $aTestículo 653 $aCélulas de Sertoli 653 $aFitoestrógenos 653 $aHistomorfometria 653 $aHistomorphometry 653 $aRatos Wistar 653 $aTúbulos seminíferos 653 $aVimentina 700 1 $aCARDOZO, L. M. de F. 700 1 $aRIBEIRO, I. C. de A. 700 1 $aBOAVENTURA, G. T. 700 1 $aCHAGAS, M. A. 773 $tPesquisa Veterinária Brasileira, Rio de Janeiro$gv. 37, n. 6, p. 650-656, jun. 2017.
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