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High dilutions of Euphorbia tirucalli L. (aveloz) modify the viability and glycolytic metabolism of cell lines / Altas diluições de Euphorbia tirucalli L. (aveloz) modificam a viabilidade e o metabolismo glicolítico de linhas celulares
Aquino, Carolina Lessa; Barbosa, Glauce Moreno; Barbosa, Gleyce Moreno; Varricchio, Marcia Braga Antunes; Veiga, Venicio Feo; Kuster, Ricardo Machado; Zancan, Patricia; Sola-Penna, Mauro; Holandino, Carla.
Affiliation
  • Aquino, Carolina Lessa; Department of Medicines. Multidisciplinary Laboratory of Pharmaceutical Sciences. Rio de Janeiro. BR
  • Barbosa, Glauce Moreno; Department of Medicines. Multidisciplinary Laboratory of Pharmaceutical Sciences. Rio de Janeiro. BR
  • Barbosa, Gleyce Moreno; Department of Medicines. Multidisciplinary Laboratory of Pharmaceutical Sciences. Rio de Janeiro. BR
  • Varricchio, Marcia Braga Antunes; Department of Medicines. Multidisciplinary Laboratory of Pharmaceutical Sciences. Rio de Janeiro. BR
  • Veiga, Venicio Feo; Institute of Microbiology Professor Paulo de Góes. Rio de Janeiro. BR
  • Kuster, Ricardo Machado; Laboratory of Phytochemistry of Natural Products. Rio de Janeiro. BR
  • Zancan, Patricia; Department of Drugs. Laboratory of Enzymology and Control of Metabolism. Rio de Janeiro. BR
  • Sola-Penna, Mauro; s.af
  • Holandino, Carla; s.af
Int. j. high dilution res ; 7(24): 132-139, 2008. ilus, graf
Article in English | LILACS | ID: lil-529834
Responsible library: BR926.1
ABSTRACT
The latex of Euphorbia tirucalli L. (Aveloz) is popularly used to treat cancers from diverse sources such as breast, prostate, lung and kidney. Furthermore, high dilutions of this latex (latex-HDs) have been successfully used in the treatment of tumors, although the mechanisms involved in this antitumoral activity are not yet known [...] Latex-HDs were obtained through the interaction of two procedures 1100 dilution in mass and agitation, using 2 solvents, water and 70% ethanol in homeopathic preparations 5, 15 and 30cH, following the Brazilian Homeopathic Pharmacopeia. Cell lines were incubated with 1 % and 10 % of latex-HDs for 24 hours. Controls treated with similar preparations without latex were incubated under the same conditions. Cell viability was analyzed by MTT assay and morphological features were assessed by May-Grunwald-Giemsa method. Cell ultrastructure was analyzed by transmission electron microscopy. Metabolic alterations were detected by spectrophotometric assay for the enzyme 6-phosphofructo-1-kinase (PFK-1) activity. 1% of ethanolic latex-HDs induced no alterations in MelanA cells viability, however Aveloz 15cH induced an increase in MCF7 cells viability. After aqueous treatment, MelanA cells viability decreased in almost all systems, whereas in MCF7 cells, an increase was detected in dynamized water systems and Aveloz 15CH. However, only water 15cH increased cell viability in comparison to control and non-dynamized water. No alterations in MCF7 morphology and ultrastructure were visualized through light microscopy or electronic microscopy, respectively. Interesting results were detected when we studied the glycolytic metabolism of both cells, giving support to evidences showing that HDs interfere in the metabolism of cell lines. Further studies are needed to better understand the mechanisms involved in this in vitro biological response to HDs.
RESUMO
O látex de Ephorbia tirucalli L. (aveloz) é usado popularmente no tratamento de diversos tipos de câncer incluindo mama, próstata, pulmão e rim. Além do mais, altas diluições desse látex (latex-HDs) têm sido utilizadas com sucesso no tratamento de tumores, embora o mecanismo dessa ação ainda seja desconhecido [...] As látex-HDs foram obtidas através de 2 procedimentos diluição 1100 em massa e agitação, com 2 solventes, água e etanol 70%, nas diluições homeopáticas 5, 15cH e 30cH de acordo com a Farmacopéia Homeopática Brasileira. As linhas celulares foram incubadas com látex-HDs 1% e 10% por 24 horas. Foram preparados controles similares sem o látex e incubados sob as mesmas condições. A viabilidade celular foi analisada através do método May-grunwald-Giemsa. A ultrastrutura celular foi analisada através de microscopia eletrônica de transmissão. As alterações metabólicas foram detectadas por ensaio de espectrofotometria para a atividade da enzima 6-fosfofructo-1-quinase (PFK-1). Látex-Hds em etanol 1% não induziram qualquer alteração na viabilidade das células MelanA, mas Aveloz 15cH induziu aumento da viabilidade das células MCF7. Após tratamento, a viabilidade das células MelanA diminuiu em quase todos os sistemas, enquanto que nas células MCF7 foi detectado aumento nos sistemas aquosos e Aveloz 15cH, mas só água 15cH aumentou a viabilidade celular por comparação ao controle e água não dinamizada. Não foram detectadas alterações na morfologia celular por microscopis de luz quando se estudou o metabolismo glicolítico em ambas as células, demonstrando que os padrões de resposta celular dependem do tipo de solvente, metabolismo celular e procedimento de diluição. Esta é a primeira vez que se mostra que as altas diluições interferem no metabolismo de linhas celulares. Outros estudos são necessários para se compreender melhor os mecanismos envolvidos nesta resposta in vitro a altas diluições de aveloz.
Subject(s)
Full text: Available Collection: International databases Database: LILACS Main subject: Cells / Dilution / Euphorbia / Homeopathy / Metabolism Language: English Journal: Int. j. high dilution res Journal subject: Homeopathy / Terapias Complementares Year: 2008 Document type: Article Affiliation country: Brazil Institution/Affiliation country: Department of Drugs/BR / Department of Medicines/BR / Institute of Microbiology Professor Paulo de Góes/BR / Laboratory of Phytochemistry of Natural Products/BR
Full text: Available Collection: International databases Database: LILACS Main subject: Cells / Dilution / Euphorbia / Homeopathy / Metabolism Language: English Journal: Int. j. high dilution res Journal subject: Homeopathy / Terapias Complementares Year: 2008 Document type: Article Affiliation country: Brazil Institution/Affiliation country: Department of Drugs/BR / Department of Medicines/BR / Institute of Microbiology Professor Paulo de Góes/BR / Laboratory of Phytochemistry of Natural Products/BR
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