Actividad cicatrizante in vivo del polvo carbonizado de Punica granatum Linn y Eichhornia crassipes / In vivo healing activity of the charred powder of Punica granatum Linn and Eichhornia crassipes

Introducción: Las especies vegetales constituyen el remedio primero a los problemas de salud que aquejan a las personas. La granada es rica en ácido ascórbico, mejora la barrera epidérmica y reduce la contracción de las heridas. La flor de agua posee actividad antibacteriana. Objetivo: Evaluar el efecto cicatrizante del polvo carbonizado de Punica granatum Linn (granada) y de Eichhornia crassipes (flor de agua), en un modelo experimental en ratas. Métodos: Estudio analítico experimental con el empleo 30 ratas macho distribuidas en 3 grupos (n= 10). Grupo I y II; tratadas con el polvo carbonizado de la granada y flor de agua respectivamente. Grupo III: Tratadas con cloruro de sodio al 0,9 por ciento. Se realizó un modelo de herida por escisión en el dorso. La evolución de la cicatrización fue seguida por la velocidad de contracción de la herida en milímetros. Se realizó histología sobre biopsias de tejido cicatrizado. Para el análisis estadístico se empleó la prueba no paramétrica de Mann- Whitney. El nivel de significación se fijó en p < 0,05. Resultados: Se comprobó el efecto cicatrizante de los polvos carbonizados de la granada y flor de agua; disminuyó el área de las heridas de manera significativa respecto al grupo control. El estudio histológico mostró dermis madura grado III en los grupos I y II. Conclusiones: La aplicación tópica del polvo carbonizado de granada y de flor de agua influyó sobre el cierre de las heridas y en la maduración de la dermis, por lo cual favoreció la cicatrización(AU)

ABSTRACT Introduction: Plant species are the first remedy to the people's health problems. The pomegranate is rich in ascorbic acid, improves the epidermal barrier and reduces the contraction of wounds. The water hyacinth has antibacterial activity. Objective: To evaluate the healing effect of the charred powder of Punica granatum Linn (pomegranate) and Eichhornia crassipes (water hyacinth), in an experimental model in rats. Methods: Experimental analytical study with 30 male rats distributed in 3 groups (n = 10). Group I and II; treated with the charred powder of the pomegranate and water hyacinth respectively. Group III: treated with 0.9 percent sodium chloride. An incision wound model was made on the back. The evolution of healing was followed by the speed of contraction of the wound in millimeters. Histology was performed on biopsies of scar tissue. For the statistical analysis, the nonparametric Mann-Whitney test was used. The level of significance was set at p < 0.05. Results: The healing effect of the charred powders of the pomegranate and water hyacinth was verified; decreased the wound area significantly compared to the control group. The histological study showed mature grade III dermis in groups I and II. Conclusions: The topical application of the charred powder of pomegranate and water hyacinth influenced the closure of the wounds and the maturation of the dermis, which favored healing(AU)

Glial scar-modulation as therapeutic tool in spinal cord injury in animal models

Abstract Purpose: Spinal Cord injury represents, in veterinary medicine, most of the neurological attendances and may result in permanent disability, death or euthanasia. Due to inflammation resulting from trauma, it originates the glial scar, which is a cell interaction complex system. Its function is to preserve the healthy circuits, however, it creates a physical and molecular barrier that prevents cell migration and restricts the neuroregeneration ability. Methods: This review aims to present innovations in the scene of treatment of spinal cord injury, approaching cell therapy, administration of enzyme, anti-inflammatory, and other active principles capable of modulating the inflammatory response, resulting in glial scar reduction and subsequent functional improvement of animals. Results: Some innovative therapies as cell therapy, administration of enzymes, immunosuppressant or other drugs cause the modulation of inflammatory response proved to be a promising tool for the reduction of gliosis. Conclusion: Those tools promise to reduce gliosis and promote locomotor recovery in animals with spinal cord injury.