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Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
12/08/2019 |
Data da última atualização: |
24/01/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
DOMINGUETEA, L. C. B.; LIMA, P. V. M.; NUNES, I. V.; SANDE, D.; LANA, U. G. de P.; MARRIEL, I. E.; TAKAHASHI, J. A. |
Afiliação: |
Laura C. B. Dominguetea, Universidade Federal de Minas Gerais; Paulo V. M. Lima, Universidade Federal de Minas Gerais; Isabela V. Nunes, Universidade Federal de Minas Gerais; Denise Sande, Centro Universitário de Belo Horizonte; UBIRACI GOMES DE PAULA LANA, CNPMS; IVANILDO EVODIO MARRIEL, CNPMS; Jacqueline A. Takahashi, Universidade Federal de Minas Gerais. |
Título: |
Epigenetic-induced production of promising food supplements ingredients with antioxidant and anti-acetylcholinesterase activities |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Chemical Engineering Transactions, v. 74, p. 331-336, 2019. |
DOI: |
10.3303/CET1975056 |
Idioma: |
Inglês |
Conteúdo: |
Fungal metabolites with antioxidant and acetylcholinesterase inhibitory activities can be developed as food supplements helpful for treatment of neurodegenerative diseases, like Alzheimer's disease. Fungal biosynthesis depends on the expression of several enzymes that can change chromatin?s conformation, provoking activation or silencing of gene transcription. In this sense, the use of epigenetic modulators, able to alter chromatin?s conformation, has been a modern technique used to induce the expression of silenced genes in fungi. In the present study the metabolic profile and the antioxidant and anti-acetylcholinesterase activities of the extracts of Penicillium flavigenum (PF) and P. tanzanicum (PT) grown in the presence of epigenetic modulators were analyzed. The fungi were grown in liquid media, with or without (control) the epigenetic modulators azacytidine (AZA), hydralazine (HYDRA), procainamide (PRO), suberoyl hydroxamic acid (SAHA) and sodium butyrate (BUT) (500 uM). The modulators changed the expression of exogenous metabolites produced by the fungi with overexpression of some compounds in comparison to the controls, according to the HPLC chromatographic profiles. The treatment PF-SAHA presented the higher content of total phenolic compounds (27.86 mg GAE/g) (together with PF-HYDRA and PF-BUT) and the higher total antioxidant content (25.70 mg AAE/g). Besides, PF-SAHA and PF-PRO extracts presented higher antiacetylcholinesterase activity compared to others extracts. AZA was one of the most effective treatments for increasing expression of metabolites with antioxidant activity by P. tanzanicum in at least half of the assays. Treatments PT-AZA, PT-HYDRA and PT-BUT showed statistically similar anti-acetylcholinesterase activity, which were superior to the activity of the fungal control (15%). In overall, fermentative conditions using PFSAHA and PF-PRO showed to be the most favorable to produce new bioactive metabolites to be used as food supplements for palliative treatment or prevention of Alzheimer?s disease, while complete cure is not possible so far. MenosFungal metabolites with antioxidant and acetylcholinesterase inhibitory activities can be developed as food supplements helpful for treatment of neurodegenerative diseases, like Alzheimer's disease. Fungal biosynthesis depends on the expression of several enzymes that can change chromatin?s conformation, provoking activation or silencing of gene transcription. In this sense, the use of epigenetic modulators, able to alter chromatin?s conformation, has been a modern technique used to induce the expression of silenced genes in fungi. In the present study the metabolic profile and the antioxidant and anti-acetylcholinesterase activities of the extracts of Penicillium flavigenum (PF) and P. tanzanicum (PT) grown in the presence of epigenetic modulators were analyzed. The fungi were grown in liquid media, with or without (control) the epigenetic modulators azacytidine (AZA), hydralazine (HYDRA), procainamide (PRO), suberoyl hydroxamic acid (SAHA) and sodium butyrate (BUT) (500 uM). The modulators changed the expression of exogenous metabolites produced by the fungi with overexpression of some compounds in comparison to the controls, according to the HPLC chromatographic profiles. The treatment PF-SAHA presented the higher content of total phenolic compounds (27.86 mg GAE/g) (together with PF-HYDRA and PF-BUT) and the higher total antioxidant content (25.70 mg AAE/g). Besides, PF-SAHA and PF-PRO extracts presented higher antiacetylcholinesterase activity compared to others extract... Mostrar Tudo |
Palavras-Chave: |
Doença neurodegenerativa. |
Thesagro: |
Enzima; Fungo. |
Categoria do assunto: |
S Ciências Biológicas |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/200582/1/Epigenetic-induced.pdf
|
Marc: |
LEADER 02852naa a2200241 a 4500 001 2111259 005 2020-01-24 008 2019 bl uuuu u00u1 u #d 024 7 $a10.3303/CET1975056$2DOI 100 1 $aDOMINGUETEA, L. C. B. 245 $aEpigenetic-induced production of promising food supplements ingredients with antioxidant and anti-acetylcholinesterase activities$h[electronic resource] 260 $c2019 520 $aFungal metabolites with antioxidant and acetylcholinesterase inhibitory activities can be developed as food supplements helpful for treatment of neurodegenerative diseases, like Alzheimer's disease. Fungal biosynthesis depends on the expression of several enzymes that can change chromatin?s conformation, provoking activation or silencing of gene transcription. In this sense, the use of epigenetic modulators, able to alter chromatin?s conformation, has been a modern technique used to induce the expression of silenced genes in fungi. In the present study the metabolic profile and the antioxidant and anti-acetylcholinesterase activities of the extracts of Penicillium flavigenum (PF) and P. tanzanicum (PT) grown in the presence of epigenetic modulators were analyzed. The fungi were grown in liquid media, with or without (control) the epigenetic modulators azacytidine (AZA), hydralazine (HYDRA), procainamide (PRO), suberoyl hydroxamic acid (SAHA) and sodium butyrate (BUT) (500 uM). The modulators changed the expression of exogenous metabolites produced by the fungi with overexpression of some compounds in comparison to the controls, according to the HPLC chromatographic profiles. The treatment PF-SAHA presented the higher content of total phenolic compounds (27.86 mg GAE/g) (together with PF-HYDRA and PF-BUT) and the higher total antioxidant content (25.70 mg AAE/g). Besides, PF-SAHA and PF-PRO extracts presented higher antiacetylcholinesterase activity compared to others extracts. AZA was one of the most effective treatments for increasing expression of metabolites with antioxidant activity by P. tanzanicum in at least half of the assays. Treatments PT-AZA, PT-HYDRA and PT-BUT showed statistically similar anti-acetylcholinesterase activity, which were superior to the activity of the fungal control (15%). In overall, fermentative conditions using PFSAHA and PF-PRO showed to be the most favorable to produce new bioactive metabolites to be used as food supplements for palliative treatment or prevention of Alzheimer?s disease, while complete cure is not possible so far. 650 $aEnzima 650 $aFungo 653 $aDoença neurodegenerativa 700 1 $aLIMA, P. V. M. 700 1 $aNUNES, I. V. 700 1 $aSANDE, D. 700 1 $aLANA, U. G. de P. 700 1 $aMARRIEL, I. E. 700 1 $aTAKAHASHI, J. A. 773 $tChemical Engineering Transactions$gv. 74, p. 331-336, 2019.
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Embrapa Milho e Sorgo (CNPMS) |
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Registro Completo
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
20/01/2006 |
Data da última atualização: |
17/11/2015 |
Autoria: |
CARNEIRO, N. P.; GUIMARAES, C. T.; MAGALHAES, J. V. |
Afiliação: |
NEWTON PORTILHO CARNEIRO, CNPMS; CLAUDIA TEIXEIRA GUIMARAES, CNPMS; JURANDIR VIEIRA DE MAGALHAES, CNPMS. |
Título: |
Tipos de marcadores e genômica de plantas. |
Ano de publicação: |
2004 |
Fonte/Imprenta: |
Bioscience Journal, Uberlândia, v. 20, p. 119-132, 2004. |
Idioma: |
Português |
Notas: |
Suplementt, 1. |
Conteúdo: |
Plant breeding relies on genetic variation and selection to gradually improve plants for traits that are of interest to the grower and the consumer. This variability has been in part assessed through an efficient use of the available germplasm. Although breeding efforts have continuously produced improved varieties throughout the years, recent developments in the field of biotechnology and molecular biology can now be employed to facilitate and speed up cultivar development. These methods are mainly DNA-based techniques and basically use the hybridization of cloned probes to detect genomic sequences that are polymorphic for internal restriction sites, such as in restriction fragment length polymorphisms, or on the amplification of DNA fragments using the polymerase chain reaction (e.g. random amplified polymorphic DNA or simple sequence repeats (or microsatellites)). The amplified fragment length polymorphism method is conceptually a hybrid technique, relying on polymorphisms in the recognition sequences of restriction enzymes that are revealed through selective PCR amplification of adapter sequences. These techniques, when integrated with other resources such as mutants generated by chemical and insertional mutagenesis, quantitative trait locus mapping, cDNA sequencing projects, high throughput mass spectrometry and proteomics, physical and comparative mapping, have made gene cloning far more efficient. Advanced bioinformatic tools for data retrieval and subsequent statistical analysis have been developed, allowing for a quick and reliable management of enormous amount of data obtained in several plant species. The objective of the present manuscript is to offer an overview of the most common molecular markers used in the genetic analysis of traits that are relevant as targets for crop improvement. The advantages and disadvantages of current marker technologies are also discussed. MenosPlant breeding relies on genetic variation and selection to gradually improve plants for traits that are of interest to the grower and the consumer. This variability has been in part assessed through an efficient use of the available germplasm. Although breeding efforts have continuously produced improved varieties throughout the years, recent developments in the field of biotechnology and molecular biology can now be employed to facilitate and speed up cultivar development. These methods are mainly DNA-based techniques and basically use the hybridization of cloned probes to detect genomic sequences that are polymorphic for internal restriction sites, such as in restriction fragment length polymorphisms, or on the amplification of DNA fragments using the polymerase chain reaction (e.g. random amplified polymorphic DNA or simple sequence repeats (or microsatellites)). The amplified fragment length polymorphism method is conceptually a hybrid technique, relying on polymorphisms in the recognition sequences of restriction enzymes that are revealed through selective PCR amplification of adapter sequences. These techniques, when integrated with other resources such as mutants generated by chemical and insertional mutagenesis, quantitative trait locus mapping, cDNA sequencing projects, high throughput mass spectrometry and proteomics, physical and comparative mapping, have made gene cloning far more efficient. Advanced bioinformatic tools for data retrieval and subsequent statisti... Mostrar Tudo |
Palavras-Chave: |
Melhoramento de plantas. |
Thesagro: |
Biologia Molecular; Genética Molecular. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/79483/1/Tipos-marcadores.pdf
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Marc: |
LEADER 02471naa a2200193 a 4500 001 1489101 005 2015-11-17 008 2004 bl uuuu u00u1 u #d 100 1 $aCARNEIRO, N. P. 245 $aTipos de marcadores e genômica de plantas.$h[electronic resource] 260 $c2004 500 $aSuplementt, 1. 520 $aPlant breeding relies on genetic variation and selection to gradually improve plants for traits that are of interest to the grower and the consumer. This variability has been in part assessed through an efficient use of the available germplasm. Although breeding efforts have continuously produced improved varieties throughout the years, recent developments in the field of biotechnology and molecular biology can now be employed to facilitate and speed up cultivar development. These methods are mainly DNA-based techniques and basically use the hybridization of cloned probes to detect genomic sequences that are polymorphic for internal restriction sites, such as in restriction fragment length polymorphisms, or on the amplification of DNA fragments using the polymerase chain reaction (e.g. random amplified polymorphic DNA or simple sequence repeats (or microsatellites)). The amplified fragment length polymorphism method is conceptually a hybrid technique, relying on polymorphisms in the recognition sequences of restriction enzymes that are revealed through selective PCR amplification of adapter sequences. These techniques, when integrated with other resources such as mutants generated by chemical and insertional mutagenesis, quantitative trait locus mapping, cDNA sequencing projects, high throughput mass spectrometry and proteomics, physical and comparative mapping, have made gene cloning far more efficient. Advanced bioinformatic tools for data retrieval and subsequent statistical analysis have been developed, allowing for a quick and reliable management of enormous amount of data obtained in several plant species. The objective of the present manuscript is to offer an overview of the most common molecular markers used in the genetic analysis of traits that are relevant as targets for crop improvement. The advantages and disadvantages of current marker technologies are also discussed. 650 $aBiologia Molecular 650 $aGenética Molecular 653 $aMelhoramento de plantas 700 1 $aGUIMARAES, C. T. 700 1 $aMAGALHAES, J. V. 773 $tBioscience Journal, Uberlândia$gv. 20, p. 119-132, 2004.
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