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Previous issue date: 2017-06-29 / A esp?cie Libidibia ferrea pertence a fam?lia Fabaceae, popularmente conhecida como pau-ferro ou juc?, sendo utilizada na medicina tradicional como antibacteriana, antiulcerog?nica, anti-inflamat?ria e analg?sica. Eugenia uniflora pertence fam?lia Myrtaceae, sendo conhecida como pitanga, utilizada popularmente no tratamento de diarreia, inflama??o, hiperglicemia e hipertens?o. Considerando a import?ncia das plantas medicinais como fonte de novos medicamentos ?teis para o tratamento de diversas doen?as, e o envolvimento do processo inflamat?rio em in?meras afec??es, e os fortes ind?cios de atividade farmacol?gica associada ? presen?a de subst?ncias bioativas presente nestas esp?cies, delineou-se um estudo pr?-cl?nico com o objetivo de avaliar a atividade anti-inflamat?ria e antinociceptiva dos extratos brutos e fra??es de Libidibia ferrea e Eugenia uniflora, por meio do modelo de peritonite induzido por carragenina, teste de placa quente e contor??es abdominais induzidas por ?cido ac?tico em camundongos Swiss esp?cie Mus musculus. A partir dos materiais vegetais secos e triturados, obteve-se por m?todos gerais de farmacognosia extratos brutos e fra??es de Eugenia uniflora (extrato bruto aquoso, fra??o aquosa, fra??o hex?nica e fra??o acetato de etila) e de Libidibia ferrea (extrato bruto aquoso, extratos brutos extra?dos com etanol 20, 40, 60 e 80%, fra??o acetato de etila e fra??o aquosa). As an?lises cromatogr?ficas dos extratos brutos e fra??es permitiram separar e identificar os taninos hidrolis?veis ?cido g?lico, com tempo de reten??o de aproximadamente 8,7 minutos, e o ?cido el?gico, com tempo de reten??o de 25,1 minutos, foi detectado ainda o flavonoide miricitrina, confirmada com os dados cromatogr?ficos dos padr?es. Na avalia??o da migra??o leucocit?ria, o extrato bruto fra??es de Eugenia uniflora e Libidibia ferrea nas doses de 50 mg/kg, 100 e 200 mg/kg reduziram o n?mero de c?lulas inflamat?rias para o s?tio da inflama??o (p<0,001) comparando os grupos tratados com o grupo controle positivo. A diminui??o do influxo celular foi acompanhada de uma marcante diminui??o da atividade da mieloperoxidase, redu??o de MDA, e mostrou proteger contra a deple??o de glutationa (p<0,001). A administra??o dos extratos brutos e fra??es produziu uma resposta antinociceptiva perif?rica em todas as doses testadas, reduzindo significativamente o n?mero de contor??es abdominais induzidas por ?cido ac?tico em camundongos, por?m demonstrou ter atividade analg?sica central pouco significativa, sendo avaliada pelo teste de placa quente. Os resultados descritos indicam que estas plantas possuem atividades anti-inflamat?rias e antinociceptivas. No entanto, outros estudos s?o necess?rios para elucida??o de suas propriedades farmacol?gicas, estudos de an?lise em n?vel sist?mico e propriedades toxicol?gicas. / The species Libidibia ferrea belongs to the family Fabaceae, popularly known as pau-ferro or juc?, being used in traditional medicine as antibacterial, antiulcerogenic, anti-inflammatory and analgesic. Eugenia uniflora belongs to Myrtaceae family, being known as pitanga, popularly used in the treatment of diarrhea, inflammation, hyperglycemia and hypertension. An analysis of medicinal plants as a source of new drugs for the treatment of several diseases, and involvement of the inflammatory process in numerous diseases, and strong indications of pharmacological activity associated with the presence of bioactive substances present in these species, With the aim of evaluating an anti-inflammatory and antimociceptive activity of the crude extracts and phrases of Libid?bia ferreira and Eugenia uniflora, through the model of carrageenan-induced peritonitis, hot plate test and abdominal contortions induced by acetic acid in Swiss mice Species Mus musculus. From crude and crushed vegetable materials, crude extracts and Eugenia uniflora fractions (crude aqueous extract, aqueous fraction, hexane fraction and ethyl acetate fraction) and Libidibia ferrea (crude aqueous extract, extracts Crude extracted with ethanol 20, 40, 60 and 80%, fraction ethyl acetate and aqueous fraction). The chromatographic analyzes of the extracts and the fractions allowed to separate and identify the gallic acid hydrolysable tannins, with retention time of approximately 8.7 minutes, and ellagic acid, with retention time of 25.1 minutes, also detected the flavonoid myricitrin, Confirmed With the chromatographic data of the standards. In the evaluation of leukocyte migration, the crude extract fractions of Eugenia uniflora and Libidibia ferrea at doses of 50 mg / kg, 100 and 200 mg / kg reduced the number of inflammatory cells to the site of inflammation (p <0.001), comparing the treated groups With the positive control group. The decrease in the cellular influx was accompanied by a decreased marking of myeloperoxidase activity, reduction of MDA, and showed protection against glutathione depletion (p <0.001). The administration of the crude extracts and fractions produced a peripheral antinociceptive response in all the doses tested, reducing the number of product contours by means of an acoustic in mice, but demonstrating little central analgesic activity, being evaluated by the hot plate test. The results indicate that these plants are anti-inflammatory and antinociceptive activities. However, other studies are indispensable for the elucidation of its pharmacological properties, studies of inscription analysis and toxic properties.
| Identifer | oai:union.ndltd.org:IBICT/oai:repositorio.ufrn.br:123456789/24041 |
| Date | 29 June 2017 |
| Creators | Falc?o, Tamires Rocha |
| Contributors | 83806059420, Pedrosa, Matheus de Freitas Fernandes, 96728647449, Batista, Le?nia Maria, 46775943415, Guerra, Gerlane Coelho Bernardo, Ara?jo, Aurigena Antunes de |
| Publisher | PROGRAMA DE P?S-GRADUA??O EM CI?NCIAS FARMAC?UTICAS, UFRN, Brasil |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Source | reponame:Repositório Institucional da UFRN, instname:Universidade Federal do Rio Grande do Norte, instacron:UFRN |
| Rights | info:eu-repo/semantics/openAccess |
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