Uso tópico de ketanserina na cicatrização de feridas cutâneas induzidas em equinos / Topical use of kentaserin on healing of experimentally-induced skin wounds in horses

Estudou-se a eficácia do uso tópico de ketanserina como promotor da cicatrização de feridas cutâneas induzidas em equinos. As feridas foram produzidas em ambos os metâmeros na região da garupa de oito cavalos adultos, em formato quadrangular, medindo cinco centímetros de lado. Aleatoriamente um dos metâmeros foi escolhido como tratado, permanecendo o contralateral como controle. As lesões do grupocontrole foram lavadas somente com água e detergente neutro e no grupo tratado foi realizado o mesmo procedimento seguido de aplicação tópica de ketanserina. A evolução macroscópica e microscópica do processo cicatricial foi avaliada e a área de cada ferida determinada no decorrer do período experimental. Não foram verificadas diferenças significativas entre as feridas do grupo-controle e do grupo tratado com ketanserina durante 56 dias de avaliação.

The efficiency of topical use of kentaserin on healing evolution of induced skin wounds in horses was studied. The experimental surgical wounds were made in both sides of the croup of eight adult horses. The wounds were square-shaped measuring 5cm of each side. One side was considered control and the opposite one treated. Both control and treated animals were rinsed with water and neutral soap. Additionally, the wound on the treated horses received the topical treatment with ketanserin. Macroscopic and microscopic healing evolution of the wounds was evaluated and their areas were determined during the experimental period. The use of topical ketanserin showed no difference between the control and the treated wounds during a period of 56 days.

Maternal aggression in Wistar rats: effect of 5-HT2A/2C receptor agonist and antagonist microinjected into the dorsal periaqueductal gray matter and medial septum

The objective of the present study was to assess the role of the 5-HT2A/2C receptor at two specific brain sites, i.e., the dorsal periaqueductal gray matter (DPAG) and the medial septal (MS) area, in maternal aggressive behavior after the microinjection of either a 5-HT2A/2C receptor agonist or antagonist. Female Wistar rats were microinjected on the 7th postpartum day with the selective agonist alpha-methyl-5-hydroxytryptamine maleate (5-HT2A/2C) or the antagonist 5-HT2A/2C, ketanserin. The agonist was injected into the DPAG at 0.2 (N = 9), 0.5 (N = 10), and 1.0 æg/0.2 æl (N = 9), and the antagonist was injected at 1.0 æg/0.2 æl (N = 9). The agonist was injected into the medial septal area (MS) at 0.2 (N = 9), 0.5 (N = 7), and 1.0 æg/0.2 æl (N = 6) and the antagonist was injected at 1.0 æg/0.2 æl (N = 5). For the control, saline was injected into the DPAG (N = 7) and the MS (N = 12). Both areas are related to aggressive behavior and contain a high density of 5-HT receptors. Non-aggressive behaviors such as horizontal locomotion (walking) and social investigation and aggressive behaviors such as lateral threat (aggressive posture), attacks (frontal and lateral), and biting the intruder were analyzed when a male intruder was placed into the female resident's cage. For each brain area studied, the frequency of the behaviors was compared among the various treatments by analysis of variance. The results showed a decrease in maternal aggressive behavior (number of bites directed at the intruder) after microinjection of the agonist at 0.2 and 1.0 æg/0.2 æl (1.6 ± 0.7 and 0.9 ± 0.3) into the DPAG compared to the saline group (5.5 ± 1.1). There was no dose-response relationship with the agonist. The present findings suggest that the 5-HT2A/2C receptor agonist has an inhibitory effect on maternal aggressive behavior when microinjected into the DPAG and no effect when microinjected into the MS. Ketanserin (1.0 æg/0.2 æl) decreased locomotion when microinjected into the DPAG and MS, but did not affect aggressive behavior. We interpret these findings as evidence for a specific role of 5-HT2A/2C receptors in the DPAG in the inhibition of female aggressive behavior, dissociated from those on motor activity.

Use of topical ketanserin for the treatment of ulcers in leprosy patients.

A comparative study was carried out in which 66 leprosy patients with ulcers were randomly divided in two groups of 33 patients each: Group A (experimental group) was treated with ketanserin gel (2%) and group B with clioquinol cream and/or Lassar paste during a three month period. At the end of the study, when ulcer sizes in the two groups were compared, the group treated with topical ketanserin showed superior results (p < 0.001 using Kolmogorov-Smirnov's test). We conclude that the drug is useful as coadjuavant treatment for healing ulcers in these patients.

Laceración de la mucosa septal, tratamiento con ketanserina. Diseño experimental / Septal mucosal tears, treatment with ketanserine, an experimental study

Objetivo: Demostrar que la aplicación de ketanserina en ungüento al 2 por ciento acelera el cierre de las laceraciones de la mucosa septal producidas intencionalmente en consejos Nueva Zelanda al compararlas con un placebo con el mismo vehículo que la ketanserina (polietilenglicol). Se realizó un estudio longitudinal, prospectivo, experimental, comparativo y ciego, utilizando 10 conejos Nueva Zelanda divididos en dos grupos al azar, a los que se les realizó rinotomía lateral y bajo visión microscópica se laceró la mucosa septal incluyendo mucopericondrio. Posteriormente se aplicó ungüento con placebo (polietilenglico) o ketanserina al 2 por ciento durante cinco días, tomando fotografía antes y después de la aplicación y muestras histológicas al primero, tercero y quinto días las cuales se analizaron en el departamento de Anatomía Patológica con tinción de hematoxilina-eosina. Se concluye que la ketanserina en ungüento al 2 por ciento acelera el cierre clínica e histológicamente (mayor cantidad de colágena y fibroblastos) al compararlas contra placebo. El análisis estadístico se realizó con la prueba de Pickman Welch, obteniendo una p< 0.05

Ketanserina en el tratamiento de heridas provocadas quirúrgicamente / Ketanserine in the treatment of surgery wounds

Se trataron un total de 20 pacientes portadores de heridas provocadas quirúrgicamente con katanserina tópica al 2 por ciento: 5 pacientes por biopsia en sacabocado, 10 por biopsia por rasurado. Uno de los siguientes: cirugía de laser de CO2 por excisión, por cirugía de Mohs, extracción de uña y dermoabrasión. Se obtuvo control iconográfico y se evaluaron el tamaño, profundidad, presencia y ausencia de infecciones locales. Los resultados encontrados fueron: 10 pacientes con éxito terapeútico, 6 con buenos resultados, 1 con ausencia de mejoría. 1 con deterioro, 2 excluidos. Concluimos que la ketanserina tópica al 2 por ciento es eficaz en el tratamiento de las heridas provocadas qurúrgicamente, ya que acorta el tiempo de la cicatrización y disminuye la morbilidad