7 research outputs found

    Antimicrobial activity of autoclaved and non autoclaved copaiba oil on Listeria monocytogenes Atividade antimicrobiana de óleo de copaíba autoclavado e não autoclavado sobre Listeria monocytogenes

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    The aim of this study was to evaluate the antimicrobial effect of different copaiba oil concentrations against the growth of Listeria monocytogenes, and analyze differences in inhibition of microorganisms with autoclaved and non autoclaved oil. This study provided an agar diffusion test with six isolates of bacteria and six different concentrations of autoclaved or non autoclaved copaiba oil and a negative control. The results showed sensitivity of five L. monocytogenes isolates related to the 10% autoclaved solution of copaiba oil. Four strains also showed sensitivity to the 5% autoclaved solution and one to 2.5% autoclaved solution. The 10% non autoclaved oil solution showed growth inhibition only for two strains. These results had pointed the 10% autoclaved solution of copaiba oil with higher inhibition as all other solutions and concentrations tested (P<0.05). For the other concentrations of both solutions, the 5 and 2.5% autoclaved and 10% non autoclaved solutions had presented statistically equal. All other concentrations of both copaiba solutions and the negative control did not presented any bacteria inhibition. In conclusion, the results of this study suggest that the autoclaved copaiba oil may be a potential new agent source for infection control or for food preservation, inhibiting the growth of food-borne bacteria such as L. monocytogenes.<br>Os objetivos deste estudo foram avaliar o efeito antimicrobiano de diferentes concentrações de óleo de copaíba contra o crescimento de Listeria monocytogenes e analisar as diferenças na inibição do microorganismo com soluções do óleo autoclavadas e não autoclavadas. Para tanto, foi realizado um teste de difusão em ágar, com seis isolados do microrganismo originários de produtos cárneos, seis concentrações de ambas as soluções e um controle negativo. Os resultados mostraram sensibilidade de cinco cepas de L. monocytogenes em relação à solução 10% de óleo de copaíba autoclavada. Quatro isolados também apresentaram sensibilidade para a solução de 5% autoclavada e apenas um foi sensível à solução de 2,5% autoclavada. A solução 10% não autoclavada apresentou inibição do crescimento de apenas dois isolados. Esses resultados apontaram a solução autoclavada de 10% do óleo de copaíba com maior inibição em relação a todas as outras soluções e concentrações testadas (P<0,05). As soluções 5 e 2,5% autoclavadas e a solução 10% não autoclavada apresentaram-se estatisticamente iguais. Todas as outras concentrações das soluções de copaíba e o controle negativo não apresentaram inibição das bactérias. Os resultados deste estudo sugerem que o óleo de copaíba autoclavado pode ser uma potencial fonte de novos agentes para o controle de infecção ou para a conservação dos alimentos, inibindo o crescimento de bactérias de origem alimentar como L. monocytogenes

    Efficacy and safety of pharmacotherapy in cancer-related psychiatric disorders across the trajectory of cancer care: a review

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    At least 25 – 30% of patients with cancer and an even higher percentage of patients in an advanced phase of illness meet the criteria for a psychiatric diagnosis, including depression, anxiety, stress-related syndromes, adjustment disorders, sleep disorders and delirium. A number of studies have accumulated over the last 35 years on the use of psychotropic drugs as a pillar in the treatment of psychiatric disorders. Major advances in psycho-oncology research have also shown the effi cacy of psychotropic drugs as adjuvant treatment of cancer-related symptoms, such as pain, hot fl ushes, pruritus, nausea and vomiting, fatigue, and cognitive impairment. The knowledge about pharmacokinetics and pharmacodynamics, clinical use, safety, side effects and effi cacy of psychotropic drugs in cancer care is essential for an integrated and multidimensional approach to patients treated in different settings, including community-based centres, oncology, and palliative care. A search of the major databases (MEDLINE, Embase, PsycLIT, PsycINFO, the Cochrane Library) was conducted in order to summarize relevant data concerning the effi cacy and safet

    Efficacy and safety of pharmacotherapy in cancer-related psychiatric disorders across the trajectory of cancer care: A review

    No full text
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