36 research outputs found
Clinical and microbiological effects of copaiba oil (Copaifera officinalis) on dental plaque forming bacteria in dogs
O potencial de uso do óleo de copaÃba (Copaifera officinalis) na prevenção da doença periodontal, eliminando seu agente etiológico, foi avaliado em 18 cães sem raça definida, distribuÃdos homogeneamente em três grupos: teste, (contendo óleo de copaÃba) controle positivo e controle negativo. Os tratamentos ocorreram três vezes ao dia, durante oito dias. Ao nono dia, os animais receberam aplicação tópica de fucsina básica 0,5% para evidenciação do biofilme. Mudanças na halitose e gengivite foram avaliadas diariamente por inspeção visual. Adicionalmente, foram realizados testes laboratoriais de inibição de aderência de Streptococcus mutans e ensaio antimicrobiano de difusão em ágar, sobre bactérias formadoras de placa dental. Os resultados da placa evidenciada apontaram áreas de cobertura microbiana nos dentes de 53,4±8,8%, 28,5±5,4%, e 22,3±5,3% para os grupos negativo, positivo e teste, respectivamente, indicando diferença entre o controle negativo e os demais grupos (P<0,05). Quanto à melhora nos aspectos clÃnicos, halitose e gengivite, o grupo teste respondeu melhor quando comparado ao grupo controle negativo (P<0,05). A análise dos ensaios de difusão e inibição de aderência mostrou superioridade do grupo da copaÃba (teste) em relação aos outros grupos (P<0,05). Os resultados sugerem o uso do óleo de copaÃba na prevenção da doença periodontal e como um possÃvel substituto da clorexidina na terapia antimicrobiana oral.The copaiba oil (Copaifera officinalis) potential was evaluated in preventing periodontal disease and reducing its etiology. For that 18 mongrel dogs were homogeneously distributed in three groups: test (copaiba oil), positive control (chlorexidine) and negative control. The treatments were carried out three times a day, during eight days. On the 9th day, the animals were tested with a 0.5% basic solution of fuchsin for the detection of biofilm. Changes in halitosis and gingivitis were daily observed. In addition, the following laboratory tests were done: inhibition of the adherence of Streptococcus mutans, and plaque forming bacteria antimicrobial assays by the agar diffusion method. The results of the fuchsin test showed that dental plaque reached areas of 53.4±8.8%, 28.5±5.4%, and 22.3±5.3% in the negative control, positive control, and test groups, respectively, showing differences between dogs from the negative control group and dogs from the other two groups (P<0.05). Furthermore, halitosis and gingivitis decreased in the copaiba group animals when compared with the negative group (P<0.05). The results of the attachment inhibition and agar diffusion tests showed that copaiba induced better effects against the microorganisms as compared to the results of the other groups (P<0.05). These findings suggest that copaiba oil may effectively replace chlorexidine for oral antimicrobial therapy and prevention of periodontal disease.FAPEMI
Óleo de aroeira vermelha e de suplementação de vitamina E em substituição aos promotores de crescimento sobre a microbiota intestinal de frangos de corte
Identificação bioquÃmica e molecular de Lactobacillus spp. isolados do Ãleo de frangos de corte tratados ou não com antimicrobianos
Cold coagulation of blebs and bullae in the spontaneous pneumothorax: a new procedure alternative to endostapler resection
Further improvements in the thoracoscopic treatment of spontaneous pneumothorax may reduce the already low invasiveness of the procedure. We have recently experimented with a new device for the coagulation of blebs as an alternative to endostapler resection. Patients with recurrent or persistent spontaneous pneumothorax underwent thoracoscopic treatment. Those with blebs or small bullae were treated with a new device, based on coupling saline solution perfusion with radiofrequency energy. Most operations were performed making only two incisions, in some cases under awake epidural anaesthesia. Results are comparable to those of a series of standard thoracoscopic treatments already reported in the literature