Andréia Freitas de Oliveira

Atividade antibacteriana e cicatrizante do óleo de buriti Mauritia flexuosa L.

The aim of this study was to evaluate the in vitro antimicrobial activity and wound healing effect of buriti oil (M. flexuosa) in rats. To evaluate the in vitro antimicrobial activity, five species of bacteria, including both gram-negative and gram-positive, were tested by the agar diffusion method. To assess the wound healing effect, 40 rats of Wistar lineage were clustered into two groups: G1, composed by 20 rats with cutaneous wounds and treated using topic administration of basic cream containing 10% of buriti oil; and G2 or control group, composed by 20 rats with cutaneous wounds and treated using topic administration of basic cream without any buriti oil. The cream administration was performed on circular wounds of 1 cm area in the lumbodorsal region. Clinical, histopathologic and morphometric evaluations of the wounds were done in 3rd, 7th, 14th and 21th days. Four from five bacteria species tested had growing inhibition, which demonstrates the antimicrobial potential of buriti oil. A significant reduction on the wound area with contraction of the edges was found for G1 in the 14th day. On this same day, the wounds treated using buriti oil showed an increase in the fibroblasts and collagen fibers countings and complete reephitelialization, characteristics not demonstrated by G2.

Avaliação da atividade cicatrizante do jucá (Caesalpinia ferrea Mart. ex Tul. var. ferrea) em lesões cutâneas de caprinos

O objetivo deste estudo foi demonstrar os efeitos do tratamento topico do juca (Caesalpinia ferrea) em feridas cutâneas. Quinze caprinos machos sem raca definida foram divididos em 3 grupos de acordo com o pos-cirurgico (7o, 14o e 21o dias). As feridas experimentais foram tratadas com a pomada composta pela casca da Caesalpinia ferrea em po misturada com a vaselina esteril e as do grupo controle apenas com a vaselina esterilizada. A aplicacao diaria da pomada e da vaselina esteril foi realizada sobre ferida circular padronizada de 16 cm2 de area na regiao toracica de cada animal. As avaliacoes das feridas foram feitas do ponto de vista clinico, bacteriologico, morfometrico e histopatologico nos periodos pre-determinados (7o, 14o e 21o dias). Morfometricamente, as feridas do controle apresentaram areas cirurgicas menores e grau de contracao maior que as do grupo tratado, entretanto, histologicamente, houve completa epitelizacao das feridas tratadas no 21o dia, enquanto que as feridas do grupo controle necessitavam de mais tempo para resolucao do processo cicatricial. No exame microbiologico realizado no momento da producao da ferida, nao se observou crescimento bacteriano e no momento das biopsias, identificou-se a presenca de bacterias da familia Enterobacteriaceae e Staphylococcus aureus, sendo que a partir do 14o dia observou-se Staphylococcus aureus apenas no grupo controle. A utilizacao topica da pomada de Caesalpinia ferrea apresentou eficiencia significativa no auxilio da reparacao cicatricial de feridas cutâneas de caprinos.

Enfermidades de cutias (Dasyprocta aguti) criadas em cativeiro diagnosticadas pelo exame anatomopatológico

Necroscopic examination is remarkably useful to diagnose wild animals diseases. In several occasions the clinical signs are not charactheristic as in domestic animals and the occurrence of death in asymptomatic animals is frequent. Thus, the present work aimed to accomplish a retrospective study on agouti diseases diagnosed by pathological examination in the Laboratory of Veterinary Pathology, Federal Rural University of the Semi-arid, through January 2006 to December 2006. In 32 agoutis submitted to the necropsy, the percentage of diagnosed diseases was: perinatal death due hypothermia/ inanition complex (21.6%), obstructive urolithiasis (6.24%), dystocia (6.24%), cecum sablosis (6.24%), intussusceptions (3.20%), fecaloma (3.20%) and esophagus obstruction (3.20%). A total of 16 (50.08%) animals remained undiagnosed in which nine (28.48%) showed advanced autolysis and seven (21.60%) agouti had none macroscopic or microscopic lesions compatible with any disease. The present article presents reports of some diseases not yet diagnosed in agoutis and these results may produce literature review about the pathologic aspects of these diseases in this species.

Postmortem findings in collared peccaries raised in captivity in northeastern Brazil

This study is a retrospective examination of diseases in collared peccaries that were diagnosed by the Veterinary Pathology Laboratory, Universidade Federal Rural do Semiarido. Necropsy and histological examination were performed from 2005 to 2010. Of the 50 necropsied collared peccaries, 24% died due to restraint and capture myopathy; 18% died from trauma; and the remainder was diagnosed with splenic hemangioma (6%), enterolithiasis (6%), gastritis (6%), gastric ulcer (4%), intestinal volvulus (4%), gastric volvulus (2%), mammary carcinoma (2%), polycystic kidney disease (2%), pyometra (2%), and suppurative bronchopneumonia (2%). Twelve animals remained undiagnosed, seven of which (14%) were in advanced autolytic condition and five of which (10%) had no gross or microscopic lesions that were compatible with disease. This paper describes illnesses that have not been reported in the collared peccary, focusing on their clinical and pathological aspects.