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To perform an epidemiological and clinical analysis of cases of oral cancer (OC) and potentially malignant disorders (PMDs). This retrospective study was based on the analysis of data from 631 patients who attended a clinic of the Interdisciplinary League of Oral Cancer (LINCCO) of a public university of northeastern Brazil over a time period of 12 years. Sociodemographic, economic, and clinical variables were investigated. Descriptive, bivariate, and multivariate statistical analyses using Poisson regression were performed. During the analyzed period, 19.3% (n = 122) of cases were related to diagnoses of some type of OC or PMDs. The majority of patients were male (60.7%) and in the fifth (22.0%) or sixth (23.7%) decades of life. The reported smoking and alcohol consumption were 27.0% and 27.9%, respectively. The most prevalent lesions were actinic cheilitis (48.4%) and squamous cell carcinoma (SCC) (23.8%). The most affected anatomical region was the lower lip (45.1%). The prevalence of smoking was higher among those who presented with OC [prevalence ratio (PR) = 2.56, 95% confidence interval (CI) = 1.54–4.24, p

The aim of this study was to determine the physicochemical characteristics of leaves of Syzygium cumini L. Skeels plant and characterize the extract of this plant by analytical techniques. Pharmacopeial methods of physicochemical analysis were used, including morphological characterization of the particle, thermal analysis, infrared spectroscopy and X-ray diffraction. The plant drug was presented as a coarse powder, within the appropriate Brazilian Pharmacopoeia parameters. The X-ray diffraction, optical microscopy and scanning electron microscopy suggested that the extract particles are amorphous and have irregular shapes, so that clusters of different sizes and morphologies are displayed. Thermal decomposition of the organic components in the sample started in a step that occurred between 151.64 and 209.27 °C with mass loss of 9.08 %, followed by another step with more significant mass loss (28.16 %). The infrared spectrum, in turn, showed many functional groups of compounds present in the lyophilized extract in different absorption bands. The results showed that the analytical techniques allowed us to characterize the physicochemical properties of the plant leaves, which may be useful in the production of new herbal medicines.

Nesta pesquisa foi avaliada a atividade antimicrobiana e a capacidade de inibição da síntese de glucano in vitro do extrato da casca do fruto da romã (Punica granatum Linn.) sobre linhagens bacterianas de Streptococcus mitis, Streptococcus mutans, Streptococcus sanguis, Streptococcus sobrinus e Lactobacillus casei. Os ensaios foram realizados pelas técnicas de ágar-difusão em placas para determinação da Concentração Inibitória Mínima (CIM) e técnica dos tubos inclinados para determinação da Concentração Inibitória Mínima de Aderência (CIMA) ao vidro, na presença de 5% de sacarose. Os mesmos procedimentos foram realizados com a clorexidina à 0,12%. As CIMs (mg/mL) do extrato da P. granatum frente ao S. mitis, S. mutans, S. sanguis, S. sobrinus e L. casei foram 1:32, 1:8, 1:8, 1:512, e 1:128, respectivamente. Para as CIMAs o extrato da P. granatum mostrou resultados melhores que a clorexidina, exceto para o S. mutans com achados semelhantes na diluição de 1:256. Os resultados mostram a potencialidade da P. granatum na inibição do crescimento bacteriano e síntese de glucano representada pela aderência ao vidro, sugerindo o emprego do extrato da romã, como meio alternativo, no controle desses microrganismos na formação do biofilme.