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Abstract The pathogenic nature of infections caused by Candida spp. underscores the necessity for novel therapeutic agents. Extracts of Schinopsis brasilienses Engl are / a promising source of agents with antifungal effects. This study aimed to assess the antifungal potential of the leaf extract of S. brasilienses. The antifungal activity was evaluated by determining the minimum inhibitory concentrations and fungicide concentrations (MIC and MFC). The antibiofilm potential was assessed by counting colony-forming units/mL. The study examined the inhibition kinetics of fungal growth and potential synergism between gallic acid or the extract and nystatin using the Checkerboard method. Cytotoxicity was evaluated through the MTT assay. The extract exhibited antifungal effect against all tested strains, with MIC and MFC ranging from 31.25-250 μg/mL. Gallic acid, the main isolated compound, displayed a MIC of 2000 μg/mL. The extract of S. brasilienses at 31.25 μg/mL inhibited the formation of biofilm by C. albicans and significantly reduced the mass of mature biofilm after 24 and 48 h (p < 0. 05). At a concentration of 125 μg/mL, the extract demonstrated significant inhibition of fungal growth after 6 hours. The combination of gallic acid or extract with nystatin did not exhibit synergistic or antagonistic effect. Furthermore, the extract did not induce cytotoxicity to a human cell line. The extract of S. brasiliensis demonstrates antifungal activity against Candida, generally exhibiting fungicidal action and capacity to inhibit biofilm formation as well as reduce mature biofilms. Additionally, the extract showed low cytotoxicity to human cells.
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ABSTRACT Objective: To characterize drug hypersensitivity associated with dental treatments. Material and Methods: Data from 5,302 dental patients extracted from the Faculty of Dental Medicine were used to investigate drug use history, drug hypersensitivity, and associations with oral health outcomes. The chi-square test was used, and values of p ≤ 0.05 were considered statistically significant. Results: The frequency of patients' self-reported drug hypersensitivity was 26.42% (n = 1,401). The highest frequencies were for opioid/narcotic analgesics (20.84%, n = 292), antibiotics (18.13%, n = 961), and non-steroidal anti-inflammatory drugs (10.46%, n = 141). Most of the patients (68.65%, n = 3,640) reported using medications, mostly for cardiovascular disease (43.1%, n = 1,569), for psychiatric/neurological disorders (39.75%, n = 1,447), drugs that affect the endocrine system (32.55%, n= 1,185), and drugs for pain (24.92%, n = 907). Higher drug hypersensitivity frequencies were associated with older White female subjects (p<0.0001). Associations were also identified between drug hypersensitivity and history of the following dental procedures: tooth extractions (p=0.003), root canal treatment (p=0.0004), prosthodontic treatments (p<0.0001), and orthodontic treatments (p=0.007). Conclusion: A high frequency of self-reported drug hypersensitivity in dental patients was found, with a higher occurrence in older White women and those with a history of more extensive and invasive dental care.
Subject(s)
Humans , Male , Female , Dental Care , Drug Hypersensitivity/diagnosis , Drug-Related Side Effects and Adverse Reactions/diagnosis , Chi-Square Distribution , Oral HealthABSTRACT
Abstract This is a nonclinical, controlled, and triple-blind study to investigate the effects of codeine-associated geraniol on the modulation of orofacial nociception and its potential central nervous system depressing effect in an animal model. The orofacial antinociceptive activity of geraniol in combination with codeine was assessed through the following tests: (i) formalin-induced pain, (ii) glutamate-induced pain, and (iii) capsaicin-induced pain. Six animals were equally distributed into six groups and received the following treatments, given intraperitoneally (i.p.) 30 minutes before the experiments: a) geraniol/codeine 50/30 mg/kg; b) geraniol/codeine 50/15 mg/kg; c) geraniol/codeine 50/7.5 mg/kg; d) geraniol 50 mg/kg; e) codeine 30 mg/kg (positive control); or f) 0.9% sodium chloride (negative control). We performed pain behavior analysis after the injection of formalin (20 µL, 20%), glutamate (20 µL, 25 µM), and capsaicin (20 µL, 2.5 µg) into the paranasal region. Rubbing time of the paranasal region by the hind or front paw was used as a parameter. In the neurogenic phase of the formalin test, the geraniol/codeine at 50/7.5 mg/kg was able to promote the maximum antinociceptive effect, reducing nociception by 71.9% (p < 0.0001). In the inflammatory phase of the formalin test, geraniol/codeine at 50/30 mg/kg significantly reduced orofacial nociception (p < 0.005). In the glutamate test, geraniol/codeine at 50/30 mg/kg reduced the rubbing time by 54.2% and reduced nociception in the capsaicin test by 66.7% (p < 0.005). Geraniol alone or in combination does not promote nonspecific depressing effects on the central nervous system. Based on our findings, we suggest the possible synergy between geraniol and codeine in the modulation of orofacial pain.
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Abstract Medication-related osteonecrosis of the jaw (MRONJ) is characterized by bone exposure for more than eight weeks in patients who have used or been treated with antiresorptive or antiangiogenic drugs, without a history of radiation therapy or metastatic diseases in the jaws. Obesity is associated with changes in periodontal tissues and oral microbiota that are linked to bone alterations. This study aimed to analyze the influence of obesity on the development of bisphosphonate-induced osteonecrosis. The experiment randomly and simply divided 24 male Wistar rats (Rattus norvegicus) into four groups: healthy, with osteonecrosis, obese, and obese with osteonecrosis (n=6 per group). Osteonecrosis was induced through weekly intraperitoneal injection for eight weeks at a dose of 250 µg/kg of zoledronic acid in a 4 mg/5 mL solution, combined with trauma (exodontia). Obesity was induced through a high glycaemic index diet. Each group was qualitatively and quantitatively evaluated regarding the development of models and pathological anatomy of the lesions. The results were expressed in mean percentage and standard deviation and statistically analyzed using one-way analysis of variance (ANOVA) followed by Tukey's post-hoc test, with a significance level of 5% (p<0.05) to establish differences found between the groups. Animals in the osteonecrosis group and the obese with osteonecrosis group presented larger necrosis areas (averages: 172.83±18,19 µm2 and 290.33±15,77 µm2, respectively) (p<0,0001). Bone sequestration, hepatic steatosis, and increased adipocyte size were observed in the obese group (average: 97.75±1.91 µm2) and in the obese with osteonecrosis group (average: 98.41±1.56 µm2), indicating greater tissue damage in these groups (p<0,0001). All parameters analyzed (through histological, morphometric, and murinometric analyses) increased for the obese and obese with osteonecrosis groups, suggesting a possible influence of obesity on the results. However, further studies are needed to confirm the role of obesity in the possible exacerbation of osteonecrosis and understand the underlying mechanisms.
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Resumo Esta pesquisa intencionou compreender como, a partir dos relatos narrativos (auto)biográficos de três docentes negras do ensino superior público, implodem-se saberes e fazeres que decolonizam o conhecimento, a ciência e a sociedade no âmbito da UFMG. Tomou-se a experiência dessas sujeitas como analisadores das inúmeras contradições que se apresentam em uma universidade pública de histórico moderno/colonial. O que tem sido capaz de movimentar rupturas epistêmicas e políticas na reinvenção de um novo mundo que já se mostra possível apesar das armadilhas da colonialidade. Nessa direção, as estratégias de combate à colonização do ser, do saber e da sociedade são um processo constante de mobilizações e alterações dessas experiências. É, apenas e unicamente, por meio dessa ferida aberta, que essas intelectuais inventam outros horizontes na produção do conhecimento, da ciência e da própria sociedade em sua versão mais justa rumo à experiência-ciência feminista, antirracista e decolonial.
Resumen Esta investigación pretendió comprender cómo, a partir de los relatos (auto)biográficos de tres profesores negros de educación superior pública, se implosionan saberes y acciones que descolonizan el saber, la ciencia y la sociedad en el ámbito de la UFMG. Se tomó la experiencia de estos sujetos como analizadores de las innumerables contradicciones que se presentan en una universidad pública de historia moderna/colonial. Lo que ha podido mover rupturas epistémicas y políticas en la reinvención de un mundo nuevo que ya es posible a pesar de las trampas de la colonialidad. En esa dirección, las estrategias para combatir la colonización del ser, el saber y la sociedad son un proceso constante de movilización y alteración de estas experiencias. Es, única y exclusivamente, a través de esta herida abierta, que estos intelectuales inventan otros caminos en la producción del conocimiento, la ciencia y la sociedad misma en su versión más justa hacia la experiencia-ciencia feminista, antirracista y decolonial.
Abstract This research intended to understand how knowings and doings that decolonize knowledge, science and society in the scope of the UFMG are imploded, from the (auto)biographical narrative reports of three black teachers of public higher education. The experience of these teachers was taken as analyzers of the innumerable contradictions that appear in a public university of modern/colonial history. This has been able to move epistemic and political ruptures in the reinvention of a new world that is already possible despite the traps of coloniality. In this direction, the strategies to combat the colonization of the being, of knowledge and of society are a constant process of mobilization and alteration of these experiences. Only and solely, it is through this open wound that these intellectuals invent other paths in the production of knowledge, science and society itself in its fairest version towards feminist, anti-racist and decolonial experience-science.
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This review describes the geographical distribution, botanical data, popular use, chemical composition, pharmacological activities and genetic aspects related to Eugenia luschnathiana, a native Brazilian plant popularly known as "bay pitomba". E. luschnathiana leaves are characterized morphologically by the presence of a petiole, an attenuated base, acuminated apex, elliptical shape, and parallel venation. The major chemical compounds found in E. luschnathiana are sesquiterpenes. Literature reports showed that E. luschnathiana extracts have antioxidant properties and antimicrobial activity against Gram-negative and Gram-positive bacteria. The extractsfrom the leaf, fruit and stem, and a concentrated residual solution of its essential oil, displayed negligible toxicity. Lastly, a cytogenetic analysis indicated that some markers can be used for the study of genetic diversity, population structure, and genetic improvements. The information available on E. luschnathiana supports the hypothesis that this plant may be a source of compounds with promising pharmacological activity.
Esta revisión describe la distribución geográfica, datos botánicos, uso popular, composición química, actividad farmacológica y el análisis genético de Eugenia luschnathiana, una planta originaria del Brasil conocida popularmente como "pitomba da baía". Las hojas de E. luschnathiana se caracterizan por la presencia de pecíolo, base atenuada, ápice acuminado, forma elíptica y venación paralela. Su composición química presenta mayormente sesquiterpenos. Los informes en la literatura muestran que los extractos de E. luschnathiana presentan propiedades antioxidantes y actividad antimicrobiana contra las bacterias Gram-negativas y Gram-positivas. Los extractos de la hoja, fruto y tallo, y una solución residual concentrada del aceite esencial, presentaron baja toxicidad. Por último, un análisis citogenético indicó que algunos marcadores pueden utilizarse para estudios de diversidad genética, estructura poblacional y mejoramiento genético. Las informaciones disponibles acerca de E. luschnathiana proponen la hipótesis de que esta planta puede ser una fuente de compuestos con actividad farmacológica prometedora.
Subject(s)
Oils, Volatile/pharmacology , Plant Extracts/pharmacology , Eugenia/chemistry , Anti-Infective Agents/pharmacology , Terpenes/analysis , Bacteria/drug effects , Oils, Volatile/chemistry , Plant Extracts/genetics , Plant Extracts/chemistry , Plant Leaves/chemistry , Eugenia/genetics , Medicine, Traditional , Anti-Infective Agents/chemistryABSTRACT
Abstract Objective: This study sought to identify the differences between the oral changes presented by patients with solid and hematologic tumors during chemotherapeutic treatment. Methodology: This is an observational, prospective and quantitative study using direct documentation by follow-up of 105 patients from 0 to 18 years using the modified Oral Assessment Guide (OAG). Of the 105 patients analyzed, 57 (54.3%) were boys with 7.3 years (±5.2) mean age. Hematologic neoplasms accounted for 51.4% of all cases. Results: Voice, lips, tongue, and saliva changes were not significantly different (p>0.05) between patients with solid or hematologic tumors and during the follow-up. From the 6th until the 10th week of chemotherapeutic treatment alterations in swallowing function, in the mucous membrane (buccal mucosa and palate), in the labial mucosa, and in the gingiva occurred and were distributed differently between the two tumors groups (p<0.05). The main alterations were observed in patients with hematologic tumors. Conclusion: It was concluded that the oral changes during the chemotherapeutic treatment occurred especially in swallowing function, in the mucous membrane, in the labial mucosa and in the gingiva, and these alterations were found mainly in patients with hematologic tumors.
Subject(s)
Humans , Male , Female , Infant, Newborn , Infant , Child, Preschool , Child , Adolescent , Mouth Diseases/chemically induced , Neoplasms/drug therapy , Antineoplastic Agents/adverse effects , Deglutition Disorders/chemically induced , Prospective Studies , Longitudinal Studies , Hematologic Neoplasms/complications , Hematologic Neoplasms/drug therapy , Mouth Diseases/classification , Mouth Mucosa/pathology , Antineoplastic Agents/therapeutic useABSTRACT
Abstract We aimed to evaluate the orofacial antinociceptive effect of geraniol in mice and its molecular anchorage mechanism. Seven mice per group (probabilistic sample) were treated with geraniol (12.5, 25 and 50 mg/kg, i.p.), morphine (6 mg/kg, i.p.) and vehicle (saline + Tween 80 at 0.2%, i.p.) 30 minutes prior to the beginning of the experiment. Injecting glutamate (25 μM), capsaicin (2.5 μg) and formalin (2%) into the right upper lip (perinasal) of the mouse induced nociception. Behavioral analysis of the animals considered the friction time (in seconds) of the mentioned region using hind or front paws by a researcher blinded to the treatment groups. The statistical analysis was performed blindly, considering α = 5%. The results showed that in the glutamate and capsaicin tests, concentrations of 25 mg/kg and 50 mg/kg presented antinociceptive activity (p < 0.005, power> 80%). In the formalin test, geraniol was able to reduce nociception at a concentration of 50 mg/kg (p < 0.005, power> 80%). In the molecular anchorage study, high values of binding between the evaluated substance and receptors of glutamate were observed (metabotropic glutamate receptor, -87.8501 Kcal/mol; N-methyl-D-aspartate, -86.4451 Kcal/mol; α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid, -85.6755 Kcal/mol). Geraniol presented orofacial antinociceptive activity, probably by interacting with glutamate-related receptors.
Subject(s)
Animals , Mice , Facial Pain , Terpenes , Pain Measurement , Acyclic Monoterpenes , AnalgesicsABSTRACT
Abstract Objective: To describe and compare how three dental schools from different countries (Australia, Brazil, and the USA) have managed experiences in dental education during the COVID-19 crisis. Material and Methods: It is a descriptive study reporting the experience that three distinct dental schools faced during the COVID-19 pandemic. They represent countries that adopted different measures to tackle the pandemic and were undergoing different stages of the disease. Results: After the WHO declared the COVID-19 pandemic, the Federal University of Paraíba suspended all on-site teaching, research, and service activities. For the return to teaching activities, the use of information and communications technology resources for distance learning was recommended. At the School of Dental Medicine (University of Pittsburgh), all research activities were suspended or, otherwise, could not be interrupted because of the employment of unique materials or supplies. When the pandemic started, Australia was one of the first countries to introduce strong regulations related to social distancing, travel restrictions, testing and tracking of infected patients. As such, the universities started to be closed from mid-March, cancelling all clinical and pre-clinical activities, maintaining online theoretical activities, such as seminars, lectures, and journal clubs. Conclusion: Numerous and critical difficulties have arisen as a result of the pandemic for individuals, communities and institutions that will have long-lasting effects. Our students face disruption to their education and career; our professional colleagues will be challenged rebuilding their practices, while staff at all Dental Schools are experiencing various hardships.
Subject(s)
Social Isolation/psychology , Coronavirus/immunology , Educational Technology/methods , Severe acute respiratory syndrome-related coronavirus , Education, Dental , Schools, Dental , Australia/epidemiology , United States/epidemiology , World Health Organization , Brazil/epidemiology , Epidemiology, Descriptive , Education, Distance/methods , Pandemics/prevention & controlABSTRACT
Introdução: O alto consumo de medicamentos no Brasil impulsiona o desenvolvimento de estratégias para promoção do uso racional dos mesmos, especialmente em população mais vulneráveis. Objetivo: Traçar o perfil socioeconômico, demográfico e farmacoterapêutico dos alunos incluídos na presente pesquisa; bem como, promover atividades de educação em saúde.Metodologia: Trata-se de uma pesquisa epidemiológica transversal, quantitativa e descritiva realizada com 33 alunos do terceiro e quarto ciclos do programa de Educação de Jovens e Adultos de uma escola pública de João Pessoa-PB. Os dados foram coletados através de formulário, ficha de medicamentos e atividades de educação em saúde. Resultados:A maioria dos estudantes jovens e adultos com idade abaixo de 60 anos(75,7%), predominando o sexo feminino(69,6%)e parda(63,3%). Quase metade dos participantes é constituída de desempregados(45,5%). Parte dos alunos(39,9%) afirmaram ter renda mensal de até um salário mínimo. Para realização desse projeto foram efetuadas atividades que proporcionavam, através de metodologias ativas, a educação e promoção do uso racional de medicamentos e o autocuidado. Quanto ao perfil farmacoterapêutico observa-se interações medicamentosas entre anti-hipertensivos, hipoglicemiantes, anti-tireoidiano e medicamentos isentos de prescrição, apresentando presença de automedicação. As classes medicamentosas predominantes foram os analgésicos, anti-hipertensivos, anti-inflamatórios,antiácidos e hipoglicemiantes. Conclusões:O desenvolvimento de práticas educativas no âmbito da Educação de Jovens e Adultos incentivam o diálogo e a participação dos envolvidos, com grande potencial para ampliação do acesso às informações associadas ao autocuidado em saúde em suas famílias, escola e comunidade (AU).
Introduction:The high consumption of medicines in Brazil drives the development of strategies to promote their rational use, especially in the most vulnerable populations. Objective:Draw the socioeconomic, demographic and pharmacotherapeutic profile of the students included in this research; as well as promoting health education activities. Methodology:This is a cross-sectional, quantitative and descriptive epidemiological research carried out with 33 students from the third and fourth cycles of the Youth and Adult Education program of a public school in João Pessoa-PB. The data were collected through a form, medication form and health education activities. Results:The majority of young and adult students under the age of 60 (75.7%), predominantly female (69.6%) and brown (63.3%). Almost half of the participants are unemployed (45.5%). Part of the students (39.9%) said they had a monthly income of up to one minimum wage. In order to carry out this project, activities were carried out that provided, through active methodologies, education and promotion of the rational use of medicines and self-care. Regarding the pharmacotherapeutic profile, drug interactions are observed between antihypertensive drugs, hypoglycemic agents, anti-thyroid agents and non-prescription drugs, with the presence of self-medication. The predominant drug classes were analgesics, antihypertensives, anti-inflammatories, antacids and hypoglycemic agents. Conclusions:The development of educational practices within the scope of Youth and Adult Education encourages dialogue and the participation of those involved, with great potential for expanding access to information associated with self-care in health in their families, school and community (AU).
Introducción: El alto consumo de medicamentos en Brasil impulsa el desarrollo de estrategias para promover su uso racional, especialmente en las poblaciones más vulnerables. Objetivo:Dibujar el perfil socioeconómico, demográficoy farmacoterapéutico de los estudiantes incluidos en esta investigación; así como promover actividades de educación para la salud. Metodología:Esta es una investigación epidemiológica transversal, cuantitativa y descriptiva realizada con 33 estudiantes del tercer y cuarto ciclo del programa de Educación para Jóvenes y Adultos de una escuela pública en João Pessoa-PB. Los datos fueron recolectados a través de un formulario, formulario de medicamentos y actividades de educación para la salud.Resultados:La mayoría de los estudiantes jóvenes y adultos menores de 60 años (75.7%), predominantemente mujeres (69.6%) y marrones (63.3%). Casi la mitad de los participantes están desempleados (45,5%). Parte de los estudiantes (39.9%) dijeron que tenían un ingreso mensual de hasta un salario mínimo. Para llevar a cabo este proyecto, se llevaron a cabo actividades que proporcionaron, a través de metodologías activas, educación y promoción del uso racional de medicamentos y autocuidado. En cuanto al perfil farmacoterapéutico, se observan interacciones farmacológicas entre fármacos antihipertensivos, agentes hipoglucemiantes, agentes antitiroideos y medicamentos sin receta, con presencia de automedicación. Las clases de drogas predominantes fueron analgésicos, antihipertensivos, antiinflamatorios, antiácidos y agentes hipoglucemiantes. Conclusiones:El desarrollo de prácticas educativas en el ámbito de la educación de jóvenes y adultos fomenta el diálogo y la participación de los involucrados, con un gran potencial para ampliar el acceso a la información asociada con el autocuidado en salud en sus familias, escuelas y comunidades (AU).
Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Aged , Socioeconomic Factors , Mainstreaming, Education/methods , Health Education , Prescription Drug Overuse , Health Promotion , Brazil , Epidemiologic Studies , DemographyABSTRACT
Abstract Natural products have emerged as a rich source of bioactive compounds for adjunctive treatments of many infectious and inflammatory conditions, including periodontitis. Among the monoterpenes with significant biological properties, there is the perillyl alcohol (POH), which can be found in several essential oils and has shown immunomodulatory properties in recent studies, which may be interesting in the treatment of non-neoplastic inflammatory disorders. Objective To determine the antibacterial and immune modulatory activities of the POH. Methodology The minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) of the POH for two significant Gram-negative periodontal pathogens were determined by macrodilution and subculture, respectively. Cell proliferation and cytotoxicity in RAW 264.7 macrophages were determined by Trypan Blue and mitochondrial enzymatic activity assay. The modulation of reactive oxygen species (ROS) was analyzed by flow cytometry and expression of TNF and arginase-1 by real-time PCR. Results The POH was effective against P. gingivalis (ATCC 33277) and F. nucleatum (ATCC 25586) with MIC= MBC=1600 μM. No cytotoxicity up to 100 µM was observed on macrophages. The cell proliferation was inhibited from 48 hours at 100 μM (p<0.05) and 250 μM (p<0.01). The POH increased ROS production at both 10 μM and 100 μM (p<0.05) in unstimulated cells. The PMA-induced ROS production was not affected by POH, whereas 100 μM significantly reduced lipopolysaccharide-induced (LPS-induced) ROS. The expression of TNF was not affected by POH in unstimulated cells or in cells polarized to M1 phenotype, whereas both concentrations of POH reduced (p<0.05) the expression of arginase-1 in M2-polarized macrophages. Conclusion The POH has antibacterial activity against periodontal pathogens and reduced proliferation of murine macrophages without significant cytotoxicity at concentrations up to 100 μM. In addition, the POH reduced the LPS-induced ROS and the expression of arginase-1 in M2-polarized macrophages.
Subject(s)
Animals , Mice , Fusobacterium nucleatum/drug effects , Reactive Oxygen Species/analysis , Porphyromonas/drug effects , Monoterpenes/pharmacology , Macrophages/drug effects , Anti-Bacterial Agents/pharmacology , Arginase/analysis , Time Factors , Biological Products/pharmacology , Microbial Sensitivity Tests , Gene Expression , Lipopolysaccharides/pharmacology , Reproducibility of Results , Tumor Necrosis Factor-alpha/analysis , Fusobacterium nucleatum/growth & development , Reactive Oxygen Species/metabolism , Porphyromonas/growth & development , Cell Proliferation/drug effects , Real-Time Polymerase Chain Reaction , Flow Cytometry , RAW 264.7 Cells , Macrophages/metabolismABSTRACT
Este artigo propõe aproximações entre a Psicologia Social Comunitária, as pesquisas narrativas (auto)biográficas e a perspectiva decolonial. Reconhece-se, nesse sentido, que os efeitos da colonização latina seguem nutrindo lugares de enunciação muito distintos para sujeitos marcados pela diferença/desigualdade colonial na sociedade brasileira, o que tem produzido movimentos epistêmico-políticos decoloniais que interpelam o projeto de sujeito e sociedade construído a partir das lógicas coloniais. Dessa forma, é importante que possamos colaborar no endereçamento de que os sujeitos colonizados, a partir de suas narrativas, fazem à comunidade latina e brasileira em busca de elaboração denúncia e combate às desigualdades coloniais. É fundamental, portanto, que retomemos as alianças históricas que permitiram que os colonizados (re)inventassem outros mundos possíveis, rompendo com a posição subalterna, apenas, como lugar da vitimização. Devemos, assim, valorizar, eticamente, não sem (auto)críticas, os deslocamentos que as narrativas decoloniais proporcionam às narrativas comunitárias, historicamente, legitimadas como local de produção da transformação social.
This article builds approximations between Community Social Psychology, narrative (self) biographical research and the decolonial perspective. In this sense, it is recognized that the effects of the Latin colonization still harbor very distinct places of enunciation for subjects marked by the colonial difference / inequality in Brazilian society. What has produced decolonial epistemic-political movements which challenge the project of subject and society built from the colonial logics. Thus, it is important that we can collaborate in the addressing that the colonized subjects, from their narratives, make to the Latin and Brazilian community in search of elaboration, denunciation and combat to the colonial inequalities. It is therefore essential that we retake the historical alliances that allowed the colonized to (re)invent other possible worlds, breaking with the subaltern position, only, as a place of victimization. We must therefore ethically value, not without (self) criticism, the displacements that the decolonial narratives provide for historically legitimized community narratives as the place of production of social transformation.
Este artículo construye aproximaciones entre la Psicología Social Comunitaria, las investigaciones narrativas (auto) biográficas y la perspectiva decolonial. Se reconoce, en ese sentido, que los efectos de la colonización latina todavía nutren lugares de enunciación muy distintos para sujetos marcados por la diferencia / desigualdad colonial en la sociedad brasileña. Lo que ha producido movimientos epistémico-políticos decoloniales que interpelan el proyecto de sujeto y sociedad construido a partir de las lógicas coloniales. De esta forma, es importante que podamos colaborar en el direccionamiento que los sujetos colonizados, a partir de sus narrativas, hacen a la comunidad latina y brasileña en busca de elaboración, denuncia y combate a las desigualdades coloniales. Es fundamental, por lo tanto, que retomamos las alianzas históricas que permitieron que los colonizados (re) inventasen otros mundos posibles, rompiendo con la posición subalterna, apenas, como lugar de la victimización. Debemos, así, valorar, éticamente, no sin (auto) críticas, los desplazamientos que las narrativas decoloniales proporcionan a las narrativas comunitarias, históricamente, legitimadas como lugar de producción de la transformación social
Subject(s)
Psychology, Social , Community Participation , Colonialism , Socioeconomic FactorsABSTRACT
Objective: To identify the profiles of patients with special needs attended at a Center for Dental Specialties. Material and Methods: This was a cross-sectional and quantitative study using an inductive approach, and a comparative and statistical procedure for analysis of the patients with special needs. Information concerning socioeconomic, medical and dental conditions was collected. The data were analyzed using IBM SPSS, adopting a significance level of 5%. Results: It was observed that 58.6% of the users were males, single (54.7%), in the age group from 19 to 59 years (41.1%), being 97.4% without schooling. The most frequent clinical diagnoses were: deviations in intelligence (18.4%), behavioral deviations (18.4%) and physical defects (17.9%). We observed for oral health the presence of gingivitis (33.0%), and healthy gums (47.8%); the presence of caries (64.9%), with restored teeth (28.5%), and edentulism (12.3%). Dental intervention procedures were initiated with emphasis on: fluoride applications (39.7%) and subgingival scraping (34.9%). Topical fluoride applications (p=0.010) and prophylaxis (p=0.010) were realized in patients without autism. Also, prophylaxis (p=0.007) was more frequently performed and gingival alterations were more often verified (p=0.020) in patients without Down's syndrome. Conclusion: The users of the patients with special needs dental service can be generally described as male, single, aged between 19 and 54 years, with the special conditions of intelligence and behavioral deviation.
Subject(s)
Humans , Male , Female , Adult , Middle Aged , Specialties, Dental , Brazil , Oral Health , Disabled Persons/psychology , Dental Health Services , Health Services for Persons with Disabilities , Socioeconomic Factors , Health Profile , Cross-Sectional Studies/methodsABSTRACT
Abstract Objective: To perform chemical analysis and to evaluate the anti-biofilm and hemolytic effect of the essential oil of Cymbopogon citratus. Material and Methods: Gaseous chromatography coupled to mass spectrometer was performed for chemical characterization of the essential oil. To verify the antimicrobial action, the Minimum Inhibitory Concentration (MIC), Minimum Bactericidal Concentration (MBC) and Minimum Fungicidal Concentration (MFC) were determined. From MIC, MBC and MFC data, concentrations were established to verify the anti-biofilm effect and for the hemolysis test on human erythrocytes. A multispecies biofilm was developed in vitro and mouthwash applications were simulated to determine the inhibition of biofilm formation or its removal. Results were analyzed through ANOVA statistical test, complemented by the Tukey test, considering a significance level of 5% Results: The major component of the essential oil is citral. MIC verified for Streptococcus mutans was 1mg / mL, while for Candida albicans, it was 125 μg/mL, presenting microbicidal effect for both microorganisms tested. The essential oil was able to inhibit biofilm formation (p<0.001), presenting non-toxic hemolysis percentage in concentration below 500 μg/mL Conclusion: The essential oil of Cymbopogon citratus is antimicrobial, antibiofilm and non-toxic to human erythrocytes, representing a natural product with potential for use in Dentistry.
Subject(s)
Plants, Medicinal , Oils, Volatile , Biofilms , Cymbopogon , Anti-Bacterial Agents/immunology , Streptococcus mutans , In Vitro Techniques , Brazil , Microbial Sensitivity Tests , Analysis of Variance , Chromatography , Statistics, NonparametricABSTRACT
ABSTRACT Objective: to ascertain the profile of home care service (HCS) users with speech and language complaints in João Pessoa, Paraíba (PB). Methods: a descriptive and quantitative study using an indirect documentation technique based on an analysis of primary source documents, characterized as a documentary study, conducted at a HCS, in João Pessoa, PB, that stores user information in the form of medical records. All patient records included by the HCS from June 2012 to June 2016 were analyzed. After the eligibility criteria were applied, the sample consisted of 114 medical records. The collected data were entered into a Microsoft Excel spreadsheet to generate descriptive statistics using IBM SPSS (version 21.0). Results: most patients were males (59.6%), elderly (62.3%), had been diagnosed with a stroke (57.9%),had histories of dysphagia (76.3%), speech problems (58.8%), swallowing disorders (80.7%), and abnormal chewing (77.2%). Dysphagia is often associated with stroke, predominantly among males and the elderly. Conclusion difficulty in swallowing, or dysphagia, is often associated with stroke, predominantly in the presence of the sociodemographic and clinical variables associated with men and the elderly.
RESUMO Objetivo: verificar o perfil dos usuários com queixas fonoaudiológicas do serviço de atenção domiciliar do município de João Pessoa, Paraíba. Métodos: trata-se de um estudo transversal, descritivo, natureza quantitativa, mediante técnica de documentação indireta a partir da análise de documentos de fontes primárias, sendo caracterizado, portanto, como estudo documental. A pesquisa foi realizada junto ao serviço de atenção domiciliar (SAD) do município de João Pessoa/PB, que dispõe de informações dos usuários armazenadas em forma de prontuários. Todos os prontuários dos pacientes atendidos pelo SAD no período de junho de 2012 a junho de 2016 foram analisados, e após os critérios de elegibilidade, amostra ficou constituída por 114 prontuários. Os dados coletados foram inseridos em uma planilha do Microsoft Excel para realização de estatística descritiva no Software IBM SPSS (versão 21.0). Resultados: verificou-se que a maioria dos pacientes atendidos foi do sexo masculino (59,6%), idosos (62,3%) e diagnosticados com acidente vascular encefálico (57,9%). Além disso, apresentaram histórico de disfagia (76,3%), problemas de fala (58,8%), deglutição alterada (80,7%) e mastigação alterada (77,2%). A disfagia está frequentemente associada aos AVE's apresentando predomínio de indivíduos do sexo masculino e idosos. Conclusão: concluiu-se que a alteração de dificuldade de deglutição, ou seja, a disfagia está frequentemente associada aos AVE's apresentando o predomínio das variáveis sociodemográficas e clínicas de homens e idosos.
ABSTRACT
ABSTRACT Purpose: to evaluate the methodological quality of clinical trials published in Brazilian journals. Methods: four trained independent researchers conducted a systematic literature search of all Brazilian speech therapy-related journals over the last ten years, whether the journals were active or inactive. All journal volumes published during that period were selected, and each researcher conducted an individual analysis to identify articles that focused primarily on orofacial motricity. The tools used were the Downs and Black Quality Checklist and the Jadad scale. Results: after the studies were selected and categorized, the final sample comprised six articles, all of which were classified as clinical trials. The observed methodological limitations included a lack of sample planning, randomization and blinding. Mean scores of 16.3 points on the Downs and Black Quality Checklist and 2.3 on the Jadad scale were obtained. Conclusion: the randomized controlled trials in the area of orofacial motricity are scarce in Brazilian literature, suggesting that studies in this area adopting this research design should be expanded and their quality should be improved to promote clinical practice based on scientific evidence.
RESUMO Objetivo: objetivou-se avaliar a qualidade metodológica dos ensaios clínicos publicados em periódicos brasileiros. Métodos: trata-se de uma pesquisa bibliográfica sistemática. Participaram quatro pesquisadores independentes treinados que realizaram um levantamento dos últimos 10 anos em todos os periódicos nacionais da área da Fonoaudiologia, ativos ou inativos. Para tanto, foram selecionados todos os volumes desse período de tempo e cada pesquisador realizou análise individual a fim de identificar estudos que tinham o principal objeto de estudo enquadrado na Motricidade Orofacial. Foram utilizados os seguintes instrumentos Downs and Black Quality Checklist e escala de Jadad. Resultados: após a seleção e categorização dos estudos, a amostra final desta pesquisa foi composta por 6 artigos classificados como ensaios clínicos. Dentre as limitações metodológicas observadas destacam-se a ausência de plano amostral, randomização e cegamento. Identificou-se uma média de 16,3 pontos para o Downs and Black Quality Checklist e 2,3 para escala de Jadad. Conclusão: conclui-se que a literatura brasileira é escassa de ensaios clínicos controlados randomizados na área de motricidade orofacial, sugerindo ampliação e qualificação das investigações que adotam esse delineamento de pesquisa, promovendo, dessa forma, uma prática clínica baseada em evidência científica.
ABSTRACT
Abstract The effect of fluoride agents on the retention of orthodontic brackets to enamel under erosive challenge is little investigated. Objective: The aim of this study was to evaluate the effect of titanium tetrafluoride (TiF4) and sodium fluoride (NaF) agents on the shear bond strength of brackets to enamel and on the enamel microhardness around brackets under erosive challenge. Methods: Brackets were bonded to bovine incisors. Five groups were formed according to fluoride application (n=10): TiF4 varnish, TiF4 solution, NaF varnish, NaF solution and control (without application). The specimens were submitted to erosive challenge (90 s cola drink/2h artificial saliva, 4x per day for 7 days). Solutions were applied before each erosive cycle and varnishes were applied once. Vickers Microhardness (VHN) was obtained before and after all cycles of erosion and the percentage of microhardness loss was calculated. Shear bond strength, adhesive remnant index and polarized light microscopy were conducted after erosion. The data were analyzed by ANOVA, Tukey, Kruskal-Wallis and Mann-Whitney U tests (α=0.05). Results: The %VHN had no statistically significant differences among the experimental groups. However, considering the comparisons of all groups with the control group, TiF4 varnish showed the highest protection from enamel demineralization (effect size of 2.94, while the effect size for the other groups was >2.4). The TiF4 varnish group had significantly higher shear bond strength compared to other groups. There was no difference among groups for adhesive remnant index. Polarized light microscopy showed higher demineralization depth for the control group. Conclusions: Application of NaF and TiF4 agents during mild erosive challenge minimized the enamel mineral loss around brackets, however only the experimental TiF4 varnish was able to prevent the reduction of shear bond strength of brackets to enamel.
Subject(s)
Animals , Cattle , Sodium Fluoride/chemistry , Titanium/chemistry , Tooth Erosion/prevention & control , Cariostatic Agents/chemistry , Dental Bonding/methods , Orthodontic Brackets , Dental Enamel/drug effects , Fluorides/chemistry , Reference Values , Saliva, Artificial/chemistry , Surface Properties , Materials Testing , Reproducibility of Results , Analysis of Variance , Tooth Demineralization/prevention & control , Statistics, Nonparametric , Dental Enamel/chemistry , Shear Strength , Hardness Tests , Microscopy, PolarizationABSTRACT
Introduction: The incidence of lip, oral cavity and oropharynx cancer in Brazil is one of the highest worldwide. Objective: This study aimed to identify predictors for oral cancer in Brazil between 2010 and 2013. Method: Through a time series study in which 14,959 primary head and neck cancer diagnoses were evaluated. The variables of interest were gender, age, race, education level, family history of cancer, alcohol consumption, smoking, and previous cancer diagnosis. The outcome variable was divided into "oral cancer" and "cancer of other head and neck regions." The data were analysed by multiple binary logistic regression; α=5%. Result: The protective factor was: approximately 12 years of education (OR = 0.85). The risk factors were: being an ex-consumer (OR=1.19) or consumer (OR=1.11) of alcohol, tobacco use (OR=1.35) and a prior diagnosis of cancer that went untreated (OR=1.21). Conclusion: Was concluded that the oral cancer had the following predictors compared to other types of head and neck cancer during the same period: approximately 12 years of education (protective factor) and ex-consumer or consumer of alcohol, smoking and previous diagnosis of cancer that went untreated (risk factors).
Introdução: A incidência de câncer de lábio, cavidade bucal e orofaringe no Brasil é uma das maiores do mundo. Objetivo: Este estudo teve como objetivo identificar preditores para o câncer bucal no Brasil entre 2010 e 2013. Método: Mediante um estudo de série temporal em que foram avaliados 14.959 diagnósticos primários de câncer de cabeça e pescoço. As variáveis de interesse foram: gênero, idade, raça, nível de escolaridade, histórico familiar de câncer, consumo de álcool, tabagismo e diagnóstico anterior de câncer. A variável desfecho foi dividida em "câncer de boca" e "câncer de outras regiões de cabeça e pescoço". Os dados foram analisados por regressão logística binária múltipla; α = 5%. Resultado: O fator de proteção foi: ter aproximadamente 12 anos de escolaridade (OR = 0,85). Os fatores de risco foram: ser um ex-consumidor (OR = 1,19) ou consumidor (OR = 1,11) de álcool, tabagismo (OR = 1,35) e o diagnóstico prévio de câncer sem tratamento (OR = 1,21). Conclusão: Concluiu-se que o câncer bucal possui os seguintes preditores em comparação com outros tipos de câncer de cabeça e pescoço durante o mesmo período: ter aproximadamente 12 anos de estudo (fator de proteção) e ser ex-consumidor ou consumidor de álcool, tabagismo e ter tido um diagnóstico prévio de câncer sem tratamento (fatores de risco).
Subject(s)
Mouth Neoplasms , Public Health , Epidemiology , Social Determinants of Health , NeoplasmsABSTRACT
Objective: To investigate the antifungal potential of A. colubrina, and its phytochemical characteristics, thermal profile and toxicity. Material and Methods: To assess potential antifungal activity, the technique of microdilution was used with the determination of the Minimum Inhibitory Concentration and Minimum Fungicidal Concentration, using standard species of Candida and recent clinical isolates of Candida albicans. Analyses of action of the extract were performed on the wall and cell morphology of C. albicans, of the interactive effect between the plant extract and nystatin on C. albicans through the checkerboard method, and of growth kinetics. The phytochemical screening was determined by spectrophotometry. The thermal profile was traced with the determination of thermogravimetric curves (TG) and differential scanning calorimetry (DSC). The toxicity was evaluated by the method of hemolysis. Results: The extract of A. colubrina showed a fungistatic potential against all bacteria tested and it acted by modifying the cellular morphology of C. albicans. There was a synergism between nystatin and the plant extract (FIC=0.375), and 53.18% of total polyphenols were determined. The TG curve showed the occurrence of three steps of thermal decomposition. None of the tested concentrations became the effective cytotoxic concentration. Conclusion: Further studies should be conducted to understand the efficacy and the mechanisms of action involved in the antifungal activity of the plant extract of A. colubrina in order to produce a new drug for the treatment of oral candidiasis.