953 resultados para Óleos essenciais


Relevância:

60.00% 60.00%

Publicador:

Resumo:

Micronuclei (MN) originate from chromosome fragments or whole chromosomes that lag behind at anaphase during cell division can occur due to excessive exposure to harmful agents, defects in mitosis and / or DNA repair process. The study evaluated the frequency of micronuclei in cytological samples after daily use of alcohol -based mouthwash mouth in smokers and non-smokers. We assessed 30 subjects, aged between 17-42 years and established as exclusion criteria: alcohol consumption; periodontal disease; systemic diseases that may interfere with the integrity of the oral mucosa; individuals with medical or pharmacological history that affect the performance of the study, family history of malignancies. For smokers the inclusion criterion was a minimum consumption of 20 cigarettes / day, and the contrast required for non-smokers. The sample was divided into 02 experimental groups: Group 1 Smokers and Group 2 Non-Smokers, both groups performed mouthwash (alcohol 21,6%) with Listerine® Defense of Teeth and Gums for 04 weeks cytological collection were performed on buccal mucosa and portion median border of the tongue, one for initial, week 0 control, and subsequent three weeks with continued use of mouthwash. The collected material was stained by specific staining Feulgen / Fast Green. The analysis of 3000 cells / individual was performed by light microscopy statistics used Kruskal- Wallis and Mann-Whitney tests for frequency MN. The frequency of micronuclei in buccal mucosa was 1.6 ± 1.75 and 1.46 ± 2.06 for the site language to Group 1 Smokers of showing a slight increase compared with Group 2 Non-smoking, which showed a variation of 1.2 ± 1.53 for the buccal mucosa site and 0.86 ± 1.41 for the site language. However, this difference was not statistically significant. The results suggest that alcohol-based mouthwash tested is not an inducer of genotoxic changes, thus not changing the frequency...

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Introdução:.O cultivo de plantas medicinais é uma prática essencial para a conservação das espécies e para garantir a oferta de matéria-prima com padrão de qualidade constante. Para que a terapia com plantas medicinais tenha eficácia e segurança, é imprescindível ao longo do cultivo, a execução de práticas fitotécnicas adequadas a cada espécie vegetal, visto que o desenvolvimento desta está sob a influencia das variações climáticas, dos cuidados com a irrigação, adubação, etc. Objetivo: Verificar os efeitos de diferentes doses de vermicomposto na produção de matéria seca e óleo essencial de Foeniculum vulgare Mill., cultivado em vasos em condições de estufa agrícola. Material e métodos: Sementes de F. vulgare foram colhidas no Horto de Plantas Medicinais e Tóxicas da FCF-UNESP e semeadas em vasos de 300 mL. Após 40 dias da semeadura as mudas foram transplantadas para vasos de 4L contendo solo tratado com vermicomposto nas doses de 0, 15, 30, 45 e 60 t ha-1. Ao final de 90 dias de cultivo as partes aéreas (folhas e caules) foram colhidas, secadas e analisadas quanto ao teor de óleo essencial. A identificação do anetol no óleo essencial foi realizada por CCD. Resultados: Os tratamentos durante o período de cultivo analisado influenciaram a produção de biomassa das plantas e também a produção do óleo essencial, porém sem uma correspondência diretamente proporcional. As plantas tenderam a produzir mais biomassa do que óleos essenciais em relação ao tratamento testemunha. Conclusão: Houve influência das doses de vermicomposto no cultivo de funcho (durante 90 dias, em vasos, em casa de vegetação), porém não correlacionada à produção de óleo essencial das folhas.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Objective: To compare the efficacy of the mouthwashes 0.12% chlorhexidine, Listerine, and 0.5% and 2% Melaleuca Alternifolia oil against the salivary levels of Streptococcus mutans and total microorganisms. Methods: This study was double-blind controlled and paired clinical assay. Twenty-six volunteers aged 21 to 35 years old were enrolled. At baseline, 1 mL of unstimulated saliva was collected from each subject, 1 and 15 min after mouthrinsing with the following solutions: sterile distilled water, 0.12% chlorhexidine digluconate, Listerine (©Johnson & Johnson do Brasil), 0.5% and 2% concentrations of Melaleuca Alternifolia (Sigma-Aldrich). The volunteers used all the evaluated mouthrinses with a 15-day interval between the solutions. Immediately after rinsing, saliva was collected and serial dilutions were performed, followed by plating in blood agar culture medium for growth of total microorganisms and SB-20 (Sucrose-Bacitracin agar) for growth of S. mutans, and incubation at 37 °C for 48 h in microaerophilia. After incubation, the number of colonies was counted and expressed as colony forming units (UFC/mL). Results: Chlorhexidine showed antimicrobial action by reducing total microorganisms and S. mutans, while the action of 0.5% Melaleuca Alternifolia was similar to that of distilled water. Listerine and 2% Melaleuca Alternifolia oil reduced total microbial counts by 11% and 9% respectively, and S. mutans by 20% and 11%. Conclusion: A single rinse with 0.12% chlorhexidine is effective in reducing the levels of total microorganisms and S. mutans present in saliva. Under the same testing conditions, Listerine and 0.5% and 2% Melaleuca Alternifolia oil presented lower efficacy than chlorhexidine.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Pós-graduação em Agronomia (Horticultura) - FCA

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Pós-graduação em Agronomia (Horticultura) - FCA

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Pós-graduação em Agronomia - FEIS

Relevância:

60.00% 60.00%

Publicador:

Resumo:

This study aimed at investigating, in the national and international scientific literature, how aromatherapy is used as a therapeutic tool to reduce anxiety. It is a bibliographic study that adopted integrative literature review as a method. Studies published on databases Scielo, Medline and Cinahl from 2008 to 2012 were selected. A sample of 20 scientific articles was analyzed, and of these, 13 had an experimental and a quasi--experimental design whereas 07 were systematic or integrative reviews. The synthesis of knowledge sho-wed that aromatherapy represents a safe therapeutic practice although it is still underestimated in health care practices. The construction of evidence levels was not possible due to discrepancies in the studied populations, in research designs, the various essential oils used and the different methods for aromatherapy application. The knowledge gaps identified in these studies are related to the need to develop new forms to evaluate the effectiveness of this practice, including the therapist-patient relationship and the different communication forms that are intrinsic to aromatherapy.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Pós-graduação em Ciência e Tecnologia Animal - FEIS

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Pós-graduação em Agronomia (Proteção de Plantas) - FCA

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)