Programa de Pós-Graduação em Ciências Farmacêuticas
Permanent URI for this communityhttps://repositorio.ufrn.br/handle/123456789/11920
Browse
2 results
Search Results
Master Thesis Atividade anti-inflamatória e antinociceptiva dos extratos brutos e frações de Eugenia uniflora e Libidibia ferrea in vivo(2017-06-29) Falcão, Tamires Rocha; Araújo, Aurigena Antunes de; Guerra, Gerlane Coelho Bernardo; http://lattes.cnpq.br/5677318431530876; http://lattes.cnpq.br/3531154240424211; http://lattes.cnpq.br/9703962688376811; Pedrosa, Matheus de Freitas Fernandes; http://lattes.cnpq.br/2929963416385218; Batista, Leônia Maria; http://lattes.cnpq.br/0601720493634706The species Libidibia ferrea belongs to the family Fabaceae, popularly known as pau-ferro or jucá, 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 Libidíbia 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.Master Thesis Aplicação de nanopartículas de quitosana com potencial de adjuvante na produção de soro contra o venneno do escorpião Tityus serrulatus(Universidade Federal do Rio Grande do Norte, 2012-02-27) Soares, Karla Samara Rocha; Silva Júnior, Arnóbio Antônio; ; http://lattes.cnpq.br/2593509584288129; ; http://lattes.cnpq.br/2929963416385218; ; http://lattes.cnpq.br/5082737295031509; Fonseca, José Luis Cardozo; ; http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4788562T6; Pereira, Wogelsanger Oliveira; ; http://lattes.cnpq.br/4661963400736302In Brazil, several species of scorpions are known to cause accidents which can lead to death, which are mainly belonging to the genus Tityus. The scorpion Tityus serrulatus is the main responsible for more severe cases. Anti-scorpion serums are routinely produced by various institutions, despite their effectiveness, quality and action depends on how quickly treatment is started. Studies have been developed in the search for appropriate technologies to encapsulate and release recombinant or natives proteins capable of inducing antibody production. In this context, chitosan copolymer which can be obtained from the partial deacetylation of chitin or in some microorganisms and it is biocompatible and biodegradable has been widely used for this purpose. This study aimed to search for a system release from chitosan nanoparticles for peptide / protein of the venom of the scorpion T. serrulatus, able to provide a new model of immunization in animals, in order to obtain a potential novel polyclonal serum, anti-venom T. serrulatus. The chitosan nanoparticles were prepared by ionic gelation with polyanion tripolyphosphate (TPP). After standardizing the concentrations of TPP and chitosan was evaluated the efficiency of incorporation of bovine serum albumin (BSA) and scorpion venom, showed particle size compatible with the intended purpose. The particles showed adequate size around 200nm. The crosslinking was confirmed by absorption spectroscopy in the infrared. After verified the high encapsulation efficiency (EE) for acid bicinconínico method (BCA) protein assay and the particle size distribution, the success of the technique was proven and the potential for in vivo application of nanoparticles. The experimental animals were vaccinated and the antibodies measured by ELISA