A dinâmica da resposta do tecido subcutâneo para associação de microorganismos com o extrato de araçá (Psidium cattleianum): Uma análise microscópica e edemogênica

Nenhuma Miniatura disponível
Machado, Alessandra Cury
Ruviére, Denise Belúcio [UNESP]
Novais, Renata Zoccal [UNESP]
Bueno, Carlos Roberto Emerenciano [UNESP]
Jardim Junior, Élerson Gaetti [UNESP]
de Oliveira, Rodrigo Cardoso
Dezan Junior, Elói [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Objective: To evaluate in vivo tissue reaction to the extract of araçá (Psidium cattleianum) associated with inactivated microorganisms. Material and Methods: A 0.1 mL suspension was used containing Porphyromonas gingivalis, Prevotella intermedia, Fusobacterium nucleatum, Enterococcus faecalis, Peptostreptococcus micros, and Porphyromonas endodontalis, which were inactivated by heat and mixed into a 1.0 mL saline (control group), an aqueous solution, or a hydroalcoholic extract of araçá. Eighteen male rats (Rattus norvegiccus) under general anesthesia received 0.2 mL of 1% intravenous Evans blue. Thirty minutes later, 0.1 mL of one of the associations was injected into the animals’ dorsal region. The animals were euthanized after 3 and 6 hours, and the materials obtained were placed in formamide for 72 hours then analyzed in a spectrophotometer (λ=630 ηm). For the morphological analysis, 30 rats received polyethylene tubes implants with the extracts or the saline with the associations in the dorsal region and euthanized after 7 and 30 days to be analyzed according to an inflammation cell score. Results: No significant difference (p>0.05) was observed in the edema among groups. The optical microscopy results showed a repair in the 30-day-period, which was higher when compared to the 7-day-period (p<0.0001). Nevertheless, in the 7-day-period, the hydroalcoholic extract presented a significant response compared to the aqueous extract (p=0.05) and a trend for better results than the control group. Conclusion: The aqueous and hydroalcoholic araçá extracts associated with inactivated microorganisms showed similar responses to control, indicating no interference on the toxic effects of the bacterial components in tissue repair.
Anaerobic bacteria, Edema, Inflammation, Plant extracts, Psidium
Como citar
Brazilian Dental Science, v. 20, n. 2, p. 93-101, 2017.