EFEITO DO ÁCIDO HIALURÔNICO NANOESTRUTURADO NA CICATRIZAÇÃO DE FERIDAS EM PORTADORES DE ÚLCERA VENOSA
| Ano de defesa: | 2018 |
|---|---|
| Autor(a) principal: | |
| Orientador(a): | |
| Banca de defesa: | |
| Tipo de documento: | Dissertação |
| Tipo de acesso: | Acesso aberto |
| Idioma: | por |
| Instituição de defesa: |
Universidade Franciscana
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| Programa de Pós-Graduação: |
Mestrado Acadêmico em Nanociências
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| Departamento: |
Biociências e Nanomateriais
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| País: |
BR
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| Palavras-chave em Português: | |
| Palavras-chave em Inglês: | |
| Área do conhecimento CNPq: | |
| Link de acesso: | http://tede.universidadefranciscana.edu.br:8080/handle/UFN-BDTD/270 http://www.tede.universidadefranciscana.edu.br:8080/handle/UFN-BDTD/347 |
Resumo: | The hyaluronic acid (HA) is a substance found in the organism, filling the space among the cells in all body organs. It is one of the natural polymers which belong to the nonsulfated glycosaminoglycans. It represents the main component of dermis extra-cellular matrix. This acid presents underlying functions for the maintenance of a tissue structure due to its capacity to create volume, lubricate tissues and affect cellular integrity, mobility and proliferation. The hyaluronic acid also plays a fundamental role in the tissue in regeneration and angiogenesis with osmotic, viscoelastic properties which are highly efficient in the tissue cicatrisation processes. The venous ulcers are injuries with difficult cicatrisation and they correspond from 60 to 80% of the inferior limb ulcerations. This study has the aim of assessing the hyaluronic acid effect in gel nanostructured, with gel of hyaluronic acid in macro-structured form, in the repair and in the cicatrisation and of wounds in patients, carriers of venous ulcer. The research carried out was of the experimental kind, with patients carriers of leg ulcer (n=31), with lesions of any size, in both sexes. The volunteers who participated in this study were divided randomly into three groups: group A patients who had their wounds treated daily with gel containing hyaluronic acid 10% in a macro-structured form; group B treated with hyaluronic acid in a nanostructured 0,1% form; and group C was the group group control roup. The wounds were treated for a period of 90 days and or up to complete the lesion cicatrisation. The patients were enlightened about the study features and they signed a free and explicit consent. The cicatrisation outcomes were analyzed fortnightly through ulcer area measurement, photographic analysis and statistic analysis. The study participants age range ranged from 43 to 72 years old (mean: 57.5 years old), being 61% males and 39% females. The results showed that the venous ulcers treated with hyaluronic acid both macro and nanostructured form, presented better aspect with the decrease of exudate, of smell and of fibrin formation. They also showed reduction of edge edema, and when they were completely cicatrized one observed the tissue regeneration without scar in the local where the ulcer was located. In the statistical analysis, hyaluronic acid in macro-structured form presented better results with reduction of the injury area (87.53%), when compared to nanostructured form and to the group control. Mann-Whitney s test showed that all the groups of the study demonstrated significant reduction of the injury area (p< 0.05).This study outcomes 10 suggest that hyaluronic acid can be utilized as an alternative for therapeutics of difficult cicatrisation injuries owing to its properties in accelerating the tissue regeneration process. One suggests that more comparative studies are carried out, in a greater sampling and with ulcers of more regular areas, issues which certainly can prove the cicatrising properties of hyaluronic acid. This research contributed to the development of an interdisciplinary work, in patients, carriers of venous ulcers, providing with necessary conditions to the nurses in the support of therapeutics conducts of wound cicatrisation process, always noting the patient s scientific, ethical and psyco-social principles. |