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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroindústria de Alimentos. Para informações adicionais entre em contato com ctaa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos; Embrapa Amazônia Ocidental; Embrapa Pecuária Sudeste. |
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Data corrente: |
16/05/2018 |
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Data da última atualização: |
10/12/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CHAGAS, A. C. de S.; FIGUEIREDO, A.; POLITI, F. A. S.; MORO, I. J.; ESTEVES, S. N.; BIZZO, H. R.; GAMA, P. E.; CHAVES, F. C. M. |
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Afiliação: |
ANA CAROLINA DE SOUZA CHAGAS, CPPSE; Amanda Figueiredo, UNESP; Flavio A. S. Politi, UNESP; Isabela J. Moro, UNESP; SERGIO NOVITA ESTEVES, CPPSE; HUMBERTO RIBEIRO BIZZO, CTAA; PAOLA ERVATTI GAMA, CTAA; FRANCISCO CELIO MAIA CHAVES, CPAA. |
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Título: |
Efficacy of essential oils from plants cultivated in the Amazonian Biome against gastrointestinal nematodes in sheep. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Journal of Parasitic Diseases, v.42, n.3, p.357-364, july/sept, 2018. |
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DOI: |
https://doi.org/10.1007/s12639-018-1007-x |
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Idioma: |
Inglês |
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Conteúdo: |
The excessive use of anthelmintics to control nematodes has resulted in anthelminthic resistance. Essential oils (EOs) are a rich source of bioactive molecules that can be assessed for their ability to control resistant parasite populations. The aims of this study were to screen EOs from 10 plant species in vitro for anthelmintic activity against Haemonchus contortus, evaluate the cytotoxicity of those EOs in a human immortalized keratinocyte cell line (HaCaT), and test the most promising EO candidate in vivo in Santa Inês sheep. The efficacy was investigated in vitro using an egg hatch test (EHT) and a larval development test (LDT). EO cytotoxicity was evaluated with the sulforhodamine-B assay. In the in vivo experiment, 28 Santa Inês sheep naturally infected were distributed into groups: G1?Mentha arvensis (EO5), 200 mg kg?1; G2?menthol, 160 mg kg?1; G3?negative control; and G4?positive control (monepantel). EO5, from M. arvensis (86.7% menthol), had the lowest LC50 and LC90 values in the EHT (0.10, 0.27 mg mL?1, respectively), good performance in the LDT (0.015, 0.072 mg mL?1, respectively), and the lowest cytotoxicity (190.9 µg mL?1) in HaCaT cells. In the in vivo test, a single dose of the EO5 (200 mg kg?1 BW) had an efficacy of approximately 50% on days 1, 14, and 21; however, values were not significantly from day 0. Conversely, pure menthol at a dose of 160 mg kg?1 BW showed no in vivo efficacy. This can be attributed to key factors related to bioavailability and pharmacology of terpenes in the host organism, as well as to the fact that menthol is mainly excreted as glucuronides in urine. Thus, further studies should be conducted with formulation systems that deliver bioactives directly to the abomasum, focusing on terpenes, whose excretion route is mainly via faeces. MenosThe excessive use of anthelmintics to control nematodes has resulted in anthelminthic resistance. Essential oils (EOs) are a rich source of bioactive molecules that can be assessed for their ability to control resistant parasite populations. The aims of this study were to screen EOs from 10 plant species in vitro for anthelmintic activity against Haemonchus contortus, evaluate the cytotoxicity of those EOs in a human immortalized keratinocyte cell line (HaCaT), and test the most promising EO candidate in vivo in Santa Inês sheep. The efficacy was investigated in vitro using an egg hatch test (EHT) and a larval development test (LDT). EO cytotoxicity was evaluated with the sulforhodamine-B assay. In the in vivo experiment, 28 Santa Inês sheep naturally infected were distributed into groups: G1?Mentha arvensis (EO5), 200 mg kg?1; G2?menthol, 160 mg kg?1; G3?negative control; and G4?positive control (monepantel). EO5, from M. arvensis (86.7% menthol), had the lowest LC50 and LC90 values in the EHT (0.10, 0.27 mg mL?1, respectively), good performance in the LDT (0.015, 0.072 mg mL?1, respectively), and the lowest cytotoxicity (190.9 µg mL?1) in HaCaT cells. In the in vivo test, a single dose of the EO5 (200 mg kg?1 BW) had an efficacy of approximately 50% on days 1, 14, and 21; however, values were not significantly from day 0. Conversely, pure menthol at a dose of 160 mg kg?1 BW showed no in vivo efficacy. This can be attributed to key factors related to bioavailability and pha... Mostrar Tudo |
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Thesagro: |
Haemonchus Contortus; Nematóide; Óleo Essencial; Ovelha; Ovino; Parasitologia; Planta Medicinal; Produto de Origem Vegetal. |
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Thesaurus Nal: |
Essential oils; Haemonchus; Medicinal plants; Parasitology; Sheep; Vegetable oil; Vegetable products. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02977naa a2200397 a 4500
001 2092821
005 2018-12-10
008 2018 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s12639-018-1007-x$2DOI
100 1 $aCHAGAS, A. C. de S.
245 $aEfficacy of essential oils from plants cultivated in the Amazonian Biome against gastrointestinal nematodes in sheep.$h[electronic resource]
260 $c2018
520 $aThe excessive use of anthelmintics to control nematodes has resulted in anthelminthic resistance. Essential oils (EOs) are a rich source of bioactive molecules that can be assessed for their ability to control resistant parasite populations. The aims of this study were to screen EOs from 10 plant species in vitro for anthelmintic activity against Haemonchus contortus, evaluate the cytotoxicity of those EOs in a human immortalized keratinocyte cell line (HaCaT), and test the most promising EO candidate in vivo in Santa Inês sheep. The efficacy was investigated in vitro using an egg hatch test (EHT) and a larval development test (LDT). EO cytotoxicity was evaluated with the sulforhodamine-B assay. In the in vivo experiment, 28 Santa Inês sheep naturally infected were distributed into groups: G1?Mentha arvensis (EO5), 200 mg kg?1; G2?menthol, 160 mg kg?1; G3?negative control; and G4?positive control (monepantel). EO5, from M. arvensis (86.7% menthol), had the lowest LC50 and LC90 values in the EHT (0.10, 0.27 mg mL?1, respectively), good performance in the LDT (0.015, 0.072 mg mL?1, respectively), and the lowest cytotoxicity (190.9 µg mL?1) in HaCaT cells. In the in vivo test, a single dose of the EO5 (200 mg kg?1 BW) had an efficacy of approximately 50% on days 1, 14, and 21; however, values were not significantly from day 0. Conversely, pure menthol at a dose of 160 mg kg?1 BW showed no in vivo efficacy. This can be attributed to key factors related to bioavailability and pharmacology of terpenes in the host organism, as well as to the fact that menthol is mainly excreted as glucuronides in urine. Thus, further studies should be conducted with formulation systems that deliver bioactives directly to the abomasum, focusing on terpenes, whose excretion route is mainly via faeces.
650 $aEssential oils
650 $aHaemonchus
650 $aMedicinal plants
650 $aParasitology
650 $aSheep
650 $aVegetable oil
650 $aVegetable products
650 $aHaemonchus Contortus
650 $aNematóide
650 $aÓleo Essencial
650 $aOvelha
650 $aOvino
650 $aParasitologia
650 $aPlanta Medicinal
650 $aProduto de Origem Vegetal
700 1 $aFIGUEIREDO, A.
700 1 $aPOLITI, F. A. S.
700 1 $aMORO, I. J.
700 1 $aESTEVES, S. N.
700 1 $aBIZZO, H. R.
700 1 $aGAMA, P. E.
700 1 $aCHAVES, F. C. M.
773 $tJournal of Parasitic Diseases$gv.42, n.3, p.357-364, july/sept, 2018.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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Registro Completo
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
29/04/2019 |
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Data da última atualização: |
29/04/2019 |
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Tipo da produção científica: |
Orientação de Tese de Pós-Graduação |
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Autoria: |
SIMON, E. D. T. |
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Afiliação: |
Elis Daiani Timm Simon. |
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Título: |
Caracterização genotípica e fenotípica de genótipos de cana-de-açúcar coletados no sul do Brasil. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
2019. |
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Páginas: |
95 f. |
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Idioma: |
Português |
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Notas: |
Tese (Doutorado) - Programa de pós-Graduação em Sistemas de produção Agrícola Familiar. Universidade Federal de Pelotas, Pelotas. Orientador: Sérgio Delmar dos Anjos e Silva; Co-Orientador: Luís Antônio Veríssimo Corrêa. |
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Palavras-Chave: |
Melhoramento genético; Microssatélites; Recursos genéticos; Saccharum spp; Variabilidade. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/196717/1/TESE-Elis-Simon.pdf
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Marc: |
LEADER 00764nam a2200181 a 4500
001 2108562
005 2019-04-29
008 2019 bl uuuu m 00u1 u #d
100 1 $aSIMON, E. D. T.
245 $aCaracterização genotípica e fenotípica de genótipos de cana-de-açúcar coletados no sul do Brasil.$h[electronic resource]
260 $a2019.$c2019
300 $a95 f.
500 $aTese (Doutorado) - Programa de pós-Graduação em Sistemas de produção Agrícola Familiar. Universidade Federal de Pelotas, Pelotas. Orientador: Sérgio Delmar dos Anjos e Silva; Co-Orientador: Luís Antônio Veríssimo Corrêa.
653 $aMelhoramento genético
653 $aMicrossatélites
653 $aRecursos genéticos
653 $aSaccharum spp
653 $aVariabilidade
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Embrapa Clima Temperado (CPACT) |
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