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1.
Article in English | LILACS-Express | LILACS | ID: biblio-1430550

ABSTRACT

The aim of this study was to evaluate the effect of nicotine lozenge on teeth staining with/without bleaching in animal model study. A total of 15 Wistar rats were exposed in an acrylic container to 10 cigarettes smoke three times a day for 8 minutes per time, and sacrificed after 60 days. A total of 30 incisor teeth were treated (n=10) as the following: Group-1: in-office bleaching, at-home bleaching and immersion in artificial saliva; group-2: in-office bleaching, at - home bleaching and immersion in nicotine lozenge solution and in artificial saliva; group-3: immersion in nicotine lozenge solution and in artificial. The specimens of all groups were photographed using a stereomicroscope at T1) immediately after the extraction and before any treatment; T2) after one month of the treatment; and T3) after two months of the treatment. Four equidistant points of each specimen were analyzed using CMYK shade guide. The data were analyzed one-way ANOVA test followed by Tukey test for multiple comparisons with (a ≤ 0.05). In group-1, there was a significant difference of the color saturation of specimens between T1 and T2, and between T1 and T3 readings (P<0.0001). In group-2, there was a significant difference of the color saturation of specimens between T1 and T2, between T2 and T3 readings (P<0.0001). In group-3, there was a significant difference of the color saturation of specimens between T1 and T2, and between T1 and T3 readings (P<0.0001). The usage of nicotine lozenge promotes teeth lighting with/without bleaching.


El objetivo de este estudio fue evaluar el efecto de comprimidos de nicotina sobre la tinción de los dientes con/sin blanqueamiento en un estudio de modelo animal. Un total de 15 ratas Wistar fueron expuestas en un recipiente acrílico al humo de 10 cigarrillos tres veces al día durante 8 minutos por vez, y sacrificadas después de 60 días. Se trataron un total de 30 dientes incisivos (n=10) de la siguiente manera: Grupo-1: blanqueamiento en consultorio, blanqueamiento en casa e inmersión en saliva artificial; grupo-2: blanqueamiento en consultorio, blanqueamiento en casa e inmersión en solución de comprimidos de nicotina y en saliva artificial; grupo-3: inmersión en solución de nicotina en comprimidos y en artificial. Los especímenes de todos los grupos fueron fotografiados utilizando un microscopio estereoscópico en T1) inmediatamente después de la extracción y antes de cualquier tratamiento; T2) después de un mes del tratamiento; y T3) a los dos meses del tratamiento. Se analizaron cuatro puntos equidistantes de cada espécimen utilizando la guía de colores CMYK. Los datos se analizaron con la prueba ANOVA unidireccional seguida de la prueba de Tukey para comparaciones múltiples con (a ≤ 0,05). En el grupo 1, hubo una diferencia significativa de la saturación de color de las muestras entre T1 y T2, y entre las lecturas T1 y T3 (P<0,0001). En el grupo 2, hubo una diferencia significativa de la saturación de color de las muestras entre T1 y T2, entre las lecturas de T2 y T3 (P<0.0001). En el grupo 3, hubo unadiferencia significativa de la saturación de color de las muestras entre T1 y T2, y entre las lecturas T1 y T3 (P<0,0001). El uso de comprimidos de nicotina promueve la iluminación de los dientes con/sin blanqueamiento.

2.
Arq. bras. cardiol ; 120(2): e20220403, 2023. tab, graf
Article in Portuguese | LILACS-Express | LILACS | ID: biblio-1420191

ABSTRACT

Resumo Fundamento A prevenção secundária é recomendada a pacientes com evidência de doença arterial coronariana (DAC) independentemente da indicação de tratamento por cirurgia de bypass da artéria coronária (CABG) ou intervenção coronária percutânea (ICP). Objetivos Este estudo avaliou se o tratamento clínico, a ICP ou o CABG teve influência na adesão à prevenção secundária farmacológica em pacientes com DAC estável. Métodos Esta coorte incluiu pacientes com idade ≥40 anos com DAC estável confirmada por angiografia coronária estável. A decisão por tratamento clínico isolado, ou combinado com ICP ou CABG foi feita por médicos assistentes. A adesão às drogas prescritas recomendadas pelas diretrizes de prevenção secundária (tratamento farmacológico ótimo), incluindo agentes antiplaquetários, drogas hipolipemianetes, betabloqueadores, e bloqueadores do sistema angiotensina aldosterona, foi avaliada no acompanhamento. Diferenças com valores de p < 0,05 foram consideradas estatisticamente significativas. Resultados Dos 928 pacientes incluídos inicialmente, 415 apresentaram DAC leve e 66 apresentaram DAC leve a moderada. O período médio de seguimento foi 5,2 ± 1,5 anos. Os pacientes submetidos ao CABG apresentaram maior probabilidade de receberem tratamento farmacológico ótimo que aqueles submetidos à ICP ou tratamento clínico (63,5% versus 39,1% versus 45,7% respectivamente, p=0,003). Fatores basais independentemente associados com maior probabilidade de prescrição de tratamento ótimo foram CABG [39% maior (6% - 83%, p=0,017)] em comparação a outros tratamentos e diabetes [25% maior (1% - 56%), p=0,042] em comparação à ausência de diabetes. Conclusões Pacientes com DAC submetidos ao CABG são mais frequentemente tratados com prevenção secundária farmacológica ótima que pacientes tratados com ICP ou exclusivamente com tratamento clínico.


Abstract Background Secondary prevention is recommended for patients with evidence of coronary artery disease (CAD) regardless of the indication for treatment by coronary artery bypass graft surgery (CABG) or percutaneous coronary intervention (PCI). Objectives This study evaluated whether clinical treatment, PCI or CABG had an influence on adherence to the pharmacological secondary prevention in patients with stable CAD. Methods This cohort included patients aged ≥40 years with stable CAD confirmed by coronary angiography. The decision for medical treatment alone, or additionally with PCI or CABG, was made by the attending physicians. Adherence to the prescribed drugs recommended by the guidelines for secondary prevention (optimal pharmacological treatment), including antiplatelet agents, lipid-lowering drugs, beta-blockers, and renin-angiotensin-aldosterone system blockers, was assessed at follow-up. Differences were considered significant for p values <0.05. Results From 928 patients enrolled at baseline, 415 had mild CAD and 66 moderate to severe CAD. The average follow-up was 5.2 ± 1.5 years. Patients submitted to CABG were more likely to receive the optimal pharmacological treatment than those submitted to PCI or treated clinically (63.5% versus 39.1% versus 45.7% respectively, p=0.003). Baseline factors independently associated with greater probability of having a prescription of optimal treatment at follow-up were CABG [39% higher (6% - 83%, p=0.017) and diabetes [25% higher (1% - 56%), p=0.042] than their counterparts treated by other methods and participants without diabetes, respectively. Conclusions Patients with CAD submitted to CABG are more commonly treated with optimal pharmacological secondary prevention than patients treated by PCI or exclusively with medical therapy.

3.
Rev. bioét. (Impr.) ; 31: e3392PT, 2023.
Article in Portuguese | LILACS | ID: biblio-1441193

ABSTRACT

Resumo O desenvolvimento de novas tecnologias fez nascer ferramentas que auxiliam no processo de identificação de indivíduos, possibilitando confirmar identidades e ajudando a solucionar crimes, ao permitir confirmar o encontro de pessoas desaparecidas ou vítimas de acidentes, por exemplo. Entretanto, um importante questionamento ético precisa ser observado: os fins sempre justificam os meios? A identificação facial a partir de imagens coletadas por câmeras de circuito fechado de televisão ou a análise de registros fotográficos são capazes de confirmar a identidade de alguém inequivocamente? Impressões digitais ou labiais podem ser utilizadas, em qualquer hipótese, em um confronto dactiloscópico? O conhecimento sobre as limitações dos métodos técnicos científicos utilizados em comparações de caracteres morfológicos permite que o resultado do perito papiloscopista atenda a dois princípios basilares constitucionais: a legalidade e o direito da pessoa humana. Ao respeitá-los, estará agindo conforme os limites éticos.


Abstract Technological advancements have generated tools to help with identifying individuals, allowing to verify identities and solve crimes by confirming found missing persons or accident victims, for example. An important ethical question, however, arises: do the ends always justify the means? Can facial identification from images collected by closed-circuit television cameras or analysis of photographic records confirm someone's identity unequivocally? Can fingerprints or lip prints be used for any dactyloscopy? Knowing the limitations of scientific technical methods used in morphological comparisons allows examiners to comply with two fundamental constitutional principles: that of legality and right of the human person. By respecting them, examiners will be acting according to ethical limits.


Resumen El desarrollo de nuevas tecnologías dio lugar a herramientas que ayudan en el proceso de identificación de personas, lo que posibilita la confirmación de identidades y contribuye a la resolución de delitos al permitir confirmar, por ejemplo, a personas desaparecidas o víctimas de accidentes. Sin embargo, es necesario observar una cuestión ética importante: ¿el fin siempre justifica los medios? ¿La identificación facial desde imágenes captadas por cámaras de circuito cerrado de televisión o el análisis de registros fotográficos puede confirmar inequívocamente la identidad de una persona? ¿Se pueden utilizar huellas dactilares o labiales, bajo cualquier circunstancia, en un enfrentamiento dactiloscópico? El conocimiento sobre las limitaciones de los métodos técnicos y científicos utilizados en las comparaciones de caracteres morfológicos permite que el resultado del perito en papiloscopía responda a dos principios constitucionales básicos: la legalidad y el derecho de la persona humana. Al respetarlos se estará actuando dentro de los límites éticos.


Subject(s)
Forensic Anthropology , Ethics , Expert Testimony , Facial Recognition
4.
Food Analytical Methods ; 16(293­303): 1-11, 2023.
Article in English | LILACS, CONASS, ColecionaSUS, SES-SP, SESSP-IALPROD, SES-SP | ID: biblio-1427012

ABSTRACT

Polycyclic aromatic hydrocarbons (PAHs) are organic compounds that have been found in different food categories, and meat products can have high concentrations of PAHs, since the technological processes to which they are subjected, such as smoking, can produce several compounds. Considering the risk that these compounds can bring to the population's health, it is essential to develop an accurate and reliable method to evaluate the contamination of PAHs in products of animal origin. The objective of this study was to optimize and validate a method for the quantification of 4 PAHs (benz[a]anthracene, chrysene, benzo[b]fluoranthene, and benzo[a]pyrene) in salami. The methodology included saponification, liquid­liquid extraction, solid-phase purification, and quantification by ultra-high-performance liquid chromatography. The effects of saponification parameters were investigated by experimental design, whereas the model obtained by regression analysis was considered satisfactory with the dissolution solvent of potassium hydroxide providing the highest global sum of areas. In validation, the parameters studied were adequate and within European and INMETRO Guidelines limits. The evaluation of 22 samples indicated that 27% were contaminated with at least one of the 4 PAHs, and benz[a]anthracene being the prevalent one with content varying between < 1.00 and 17.58 µg/kg. Two samples showed PAHs contamination above the maximum tolerable limit in the European Commission Regulation.


Subject(s)
Polycyclic Aromatic Hydrocarbons , Population , Regression Analysis , Food
5.
Biota Neotrop. (Online, Ed. ingl.) ; 22(spe): e20221399, 2022. graf
Article in English | LILACS-Express | LILACS | ID: biblio-1403638

ABSTRACT

Abstract Since its inception, biodiversity has largely been understood as species diversity and assessed as such. Interactions among species or functional groups are gradually becoming part of an expanded concept of biodiversity. As a case study of the development of a research program in biodiversity, we summarize our multi-decade studies on interactions of Asteraceae and flowerhead-feeding insects in Brazil. Initially, host species were treated as independent replicates in order to assess the local and turnover components of their herbivore diversity. Research then expanded into sampling entire interactive communities of host plants and their associated herbivores in different localities and regions, enabling new research lines to be pursued. Interaction diversity could be assessed and factored into spatial and among-host components, suggesting a new field of interaction geography. Second, host specialization, a key component of interaction diversity, was reframed considering simultaneously relatedness and local availability of plant hosts. Third, with the influence of complex network theory, community-wide species interactions were probed for topological patterns. Having identified the modular structure of these plant-herbivore systems, later we demonstrated that they fit a compound hierarchical topology, in which interactions are nested within large-scale modules. In a brief survey of research funded by Fapesp, especially within the Biota-Fapesp program, we highlight several lines of internationally recognized research on interaction diversity, notably on plant-frugivore and plant-pollinator interactions, together with new theoretical models. The interplay of field studies with new theoretical and analytical approaches has established interaction diversity as an essential component for monitoring, conserving and restoring biodiversity in its broader sense.


Resumo Desde seu início, a biodiversidade geralmente tem sido entendida e avaliada principalmente como diversidade de espécies. Interações entre espécies ou grupos funcionais vêm sendo incorporadas em um conceito expandido de biodiversidade. Como um estudo de caso da evolução de um programa de pesquisa em biodiversidade, resumimos aqui nossos estudos das interações de Asteráceas com insetos endófagos em capítulos no Brasil, desenvolvidos por várias décadas. Inicialmente a diversidade de herbívoros foi estimada em diferentes espécies hospedeiras, tratando-as como réplicas independentes para estimar os componentes locais e de substituição da diversidade dos insetos associados. Posteriormente, passamos a amostrar comunidades interativas de plantas e insetos associados em diferentes localidades e regiões, o que abriu novas linhas de investigação. A diversidade de interações, agora fatorada em componentes espaciais e inter-hospedeiras, sugere um novo campo, a geografia de interações. Em segundo lugar, um componente essencial da diversidade de interações, a especialização trófica, foi redefinida como função da contiguidade filogenética bem como da disponibilidade local de plantas hospedeiras. Terceiro, sob influência da teoria de redes complexas, foram investigados padrões topológicos de comunidades interativas. Identificamos a estrutura modular dessas comunidades de plantas e herbívoros; posteriormente, demonstramos a topologia hierárquica dessas interações, composta por módulos internamente aninhados. Numa revisão sucinta de pesquisas sustentadas pela Fapesp, especialmente no programa Biota-Fapesp, destacamos diversas linhas de pesquisa sobre diversidade de interações que alcançaram reconhecimento internacional, tais como interações de plantas e frugívoros ou polinizadores, além de novos modelos teóricos. A conjugação de estudos de campo com novas abordagens teóricas e analíticas firmou a diversidade de interações como um componente essencial para monitorar, conservar e restaurar a biodiversidade em seu sentido mais amplo.

6.
Braz. dent. sci ; 25(2): 1-9, 2022. tab
Article in English | LILACS, BBO | ID: biblio-1363701

ABSTRACT

Objective: Tobacco smoke is composed of cancer-causing chemicals referred to as carcinogens. These carcinogens are metabolized by the enzymes of the cytochrome P450 (CYP) family. Our objective was to evaluate the correlation of tobacco consumption parameters with CYP1A1, CYP1B1 and CYP2A6 expression using qRT-PCR in samples of oral squamous cell carcinoma (OSCC). Material and Methods: The sample was divided into 2 groups: Cancer (36 subjects) and non-Cancer (12 subjects). The smokers' participants (36) were evaluated regarding their Nicotine dependence (ND) was assessed by the Fagerström test for cigarette dependence (FTCD). Questions regarding tobacco consumption like the number of cigarettes/day (CPD), duration of use, and pack-years were also evaluated. The Mann-Whitney and Spearman correlation tests were used at a significance level of 5%. Results: 48 participants were included, 32 men (66.7%), 36 smokers (75%) and 27 smokers with OSCC (56.3%). Samples of OSCC expressed more CYP1A1, CYP1B1, and CYP2A6. Especially, the CYP1B1 gene was significantly expressed in OSCC samples, regardless gender or tobacco use. No women expressed CYP2A6, as well as, non-smokers did not express the CYP1A1 and CYP2A6 genes. CYP1A1 gene was higher among men (P = 0.021). Conclusion: Lack of exposure to tobacco may justify the absence of CYP1A1 and CYP2A6 expression in non-smokers. The CYP1B1 gene was significantly expressed in the cancer presence despite gender or tobacco use. The assessment of ND and quantification of tobacco consumption are important instruments in monitoring smokers with benign oral lesions and, especially, in the presence of cancer.(AU)


Objetivo: A fumaça do tabaco é composta de substâncias químicas cancerígenas conhecidas como carcinógenos. Esses carcinógenos são metabolizados pelas enzimas da família do citocromo P450 (CYP). Nosso objetivo foi avaliar a correlação dos parâmetros do consumo de tabaco com a expressão de CYP1A1, CYP1B1 e CYP2A6 por qRT-PCR em amostras de carcinoma de células escamosas bucal (CCEB). Material e Métodos: A amostra foi dividida em 2 grupos: Câncer (36 indivíduos) e sem Câncer (12 indivíduos). Os participantes fumantes (36) foram avaliados quanto à dependência nicotínica (DN) pelo teste de Fagerström para dependência de cigarro (TFDC). Questões relacionadas ao consumo de tabaco como número de cigarros / dia (CPD), tempo de uso e anos-maço também foram avaliadas. Os testes de correlação de Mann-Whitney e Spearman foram utilizados com nível de significância de 5%. Resultados: foram incluídos 48 participantes, 32 homens (66,7%), 36 fumantes (75%) e 27 fumantes com CCEB (56,3%). Amostras de CCEB expressaram mais CYP1A1, CYP1B1 e CYP2A6. Especialmente, o gene CYP1B1 foi significativamente expresso em amostras de CCEB, apesar do sexo ou uso de tabaco. Nenhuma mulher expressou CYP2A6, assim como, não fumantes não expressaram os genes CYP1A1 e CYP2A6. O gene CYP1A1 foi maior entre os homens (P = 0,021). Conclusão: A falta de exposição pode justificar a ausência da expressão dos genes CYP1A1 e CYP2A6 entre não fumantes. O gene CYP1B1 foi significativamente expresso na presença de câncer, independentemente do sexo ou do uso de tabaco. A avaliação da DN e a quantificação do consumo de tabaco são importantes instrumentos no acompanhamento de fumantes com lesões bucais benignas e, principalmente, na presença de câncer (AU)


Subject(s)
Humans , Tobacco Use Disorder , Carcinoma , Carcinoma, Squamous Cell , Cytochrome P-450 CYP1A1 , Cytochrome P-450 CYP1B1 , Cytochrome P-450 CYP2A6
7.
Educ. med. super ; 35(2): e2783, 2021.
Article in Spanish | LILACS, CUMED | ID: biblio-1286226

ABSTRACT

Introducción: La familia funciona como una unidad de atención en la medicina familiar. Junto con las personas y la comunidad se conforman los escenarios principales de las acciones de salud en la formación posgraduada de Medicina General Integral, que asume así una atención integral a la persona desde el punto de vista biopsicosocial. Objetivo: Describir la evolución del sistema de objetivos y contenidos en los programas de formación de la especialidad Medicina General Integral, propuestos para el abordaje de la familia y la medicina familiar en la educación de posgrado en Cuba. Métodos: Se realizó una investigación descriptiva, de corte educacional. Se emplearon métodos teóricos y empíricos en función de la revisión bibliográfica y documental, relacionada con los objetivos y contenidos sobre familia y medicina familiar en el posgrado. Se hizo análisis, síntesis y contrastación de criterios, a partir de los materiales revisados. Resultados: La especialidad Medicina General Integral ha transitado hasta 2018 por cinco programas de estudios. Los contenidos familia y medicina familiar se ubican a partir del tercero, en función de profundizar y consolidar las habilidades necesarias para la intervención, tanto educativa como terapéutica de la familia. El primero carecía de integralidad, y la quinta y actual versión está organizada mediante cursos. Conclusiones: El abordaje del sistema de objetivos y contenidos sobre la familia y la medicina familiar en el programa de la especialidad Medicina General Integral ha evolucionado hacia su inclusión progresiva, que contribuye a perfeccionar las competencias de los egresados en el cumplimiento del ejercicio de la medicina familiar(AU)


Introduction: Family functions as a unit during the process of care provision in family medicine. People and the community together make up the main scenarios of health actions in postgraduate training in Family Medicine, which allows comprehensive care for the person from the biopsychosocial point of view. Objective: To describe the evolution of the system of objectives and contents in the training programs of the Family Medicine specialty, proposed for the managment of family and family medicine in postgraduate education in Cuba. Methods: A descriptive and educational research was carried out. Theoretical and empirical methods were used, focused on bibliographic and document review, related to the objectives and contents about family and family medicine in postgraduate studies. Analysis, synthesis and contrast of criteria were used, based on the reviewed materials. Results: Until 2018, the Family Medicine specialty has gone through five study programs. The contents about family and family medicine are included to be studied from the third program, in order to deepen and consolidate the necessary skills for intervention, both educational and therapeutic, of the family. The first one lacked comprehensiveness, and the fifth and current version is organized through courses. Conclusions: The way the system of objectives and contents about family and family medicine are dealt with in the program of the Family Medicine specialty has evolved towards its progressive inclusion, which contributes to perfecting the competences of graduates, in order to fulfill the practice of medicine family(AU)


Subject(s)
Humans , Program Evaluation , Family Practice/education , General Practice/education , Community Health Services , Health Postgraduate Programs
8.
Rev. direito sanit ; 21: e0002, 20210407.
Article in Portuguese | LILACS | ID: biblio-1424899

ABSTRACT

A CF/88 foi pioneira ao dispor sobre o direito à saúde como direito fundamental e regular o sistema suplementar de saúde. Vários estados brasileiros criaram planos voltados exclusivamente para seus servidores; Pernambuco foi o pioneiro a concebê-los, através do Sistema de Assistência à Saúde dos Servidores do Estado de Pernambuco. Os avanços tecnológicos, o aumento da expectativa de vida (e a consequente perda dentária precoce) e os traumas provocaram aumento do uso de órteses, próteses e materiais especiais em procedimentos invasivos ­ proporcionando, dentre outros benefícios, a reparação estética. Porém, há entraves ao uso desses materiais, entre eles seu alto custo e a ausência de cobertura dos planos de saúde para procedimentos estéticos. Foram analisados os processos judiciais envolvendo órteses, próteses e materiais especiais em cirurgia bucomaxilofacial contra o Sistema de Assistência dos Servidores de Pernambuco, entre janeiro de 2009 e dezembro de 2017. O propósito foi defender que a indicação do material a ser utilizado pelo cirurgião-dentista não pode ser considerada critério absoluto e que o Poder Judiciário não deve acatar tal opinião sem questioná-la. Verificou-se a necessidade de franquear maior estrutura aos magistrados, com a criação de núcleos de assistência técnica em saúde e/ou investimentos nos já existentes, a fim de subsidiar os julgadores e assegurar uma maior eficiência na solução das demandas. A metodologia aplicada foi a do estudo transversal, baseado na análise de dados quantitativos e qualitativos extraídos dos processos. Como variáveis, traçaram-se o perfil dos autores das ações e os parâmetros adotados nas decisões judiciais.


The Brazilian Federal Constitution of 1988 was a pioneer in providing the right to health as a fundamental right and regulating the supplementary health system. Several states have created plans aimed exclusively at their servants, and Pernambuco was the pioneer to conceive them, through the Health Assistance System of the Servants of the State of Pernambuco. The technological advances, the increase of life expectancy (and the consequent early tooth loss) and the traumas have caused an increase in the use of orthoses, prostheses and special materials in invasive procedures - providing, among other benefits, esthetic repair. However, there are obstacles to the use of these materials, including their high cost and the lack of private health insurance coverage for esthetic procedures. The judicial proceedings involving orthoses, prostheses and special materials in oral and maxillofacial surgery against the Health Assistance System of the Servants of the State of Pernambuco were analyzed, from January 2009 to December 2017. The purpose was to defend that the indication of the material to be used by the dental surgeon cannot be considered as an absolute criterion and that the Judiciary should not accept such an opinion without questioning it. It was verified the need to open a larger structure to the magistrates, with the creation of centers for technical assistance in health and/or investments in the existing one, in order to subsidize the judges and ensure a greater efficiency in the solution of the demands.


Subject(s)
Supplemental Health
10.
Rev Bras Hiperten ; 27(3): 98-102, 20200910.
Article in Portuguese | LILACS-Express | LILACS | ID: biblio-1368069

ABSTRACT

A hipertensão arterial resistente (HAR) é uma condição clínica na qual a pressão arterial persiste elevada, acima das metas estabelecidas de controle apesar do uso de três fármacos incluindo um diurético, todos em doses máximas otimizadas ou necessidade de se adicionar quatro ou mais medicamentos para atingir o controle adequado. A terapia com diuréticos, inibidores da enzima de conversão da angiotensina (IECA) ou bloqueadores receptor da angiotensina II (BRA) e bloqueadores de canais de cálcio (BCC) para o controle adequado da pressão arterial já está bem estabelecida pelas diretrizes. A espironolactona firmou-se como quarto fármaco adicional a esse esquema terapêutico, após o estudo Pathway-2. A clonidina passou ser a sexta ou sétima opção, para adição a esta sequência de terapia ficando atrás dos betabloqueadores ou vasodilatadores, dependendo da situação clínica. O estudo brasileiro ReHot, avaliando pacientes com HAR não demonstrou superioridade expressiva deste fármaco em relação a espironolactona, devido aos efeitos adversos, porém não devendo ser substituída pela metildopa pela falta de evidências cientificas em relação a segurança e eficácia do fármaco como terapia adicional para HAR


Resistant arterial hypertension (RAH) is a clinical condition in which blood pressure remains elevated, above the established control goals despite the use of three drugs including a diuretic, all in maximum optimized doses or the need to add four or more medications for achieve adequate control. Therapy with diuretics, ACEI or ARB and CCB for adequate control of blood pressure is already well established by the guidelines. Spironolactone was established as the fourth additional drug to this therapeutic regimen, after the Pathway-2 study. Clonidine became the sixth or seventh option, for addition to this therapy sequence, being behind beta-blockers or vasodilators, depending on the clinical situation. The Brazilian ReHot study, evaluating patients with RAH, did not demonstrate expressive superiority of this drug in relation to spironolactone, due to adverse effects, but should not be replaced by methyldopa due to the lack of scientific evidence regarding the safety and efficacy of the drug as additional therapy for RAH

11.
Arq. bras. oftalmol ; 83(1): 1-4, Jan.-Feb. 2020. tab
Article in English | LILACS | ID: biblio-1088953

ABSTRACT

ABSTRACT Purpose: To determine the reliability of the endoscopic dye transit test for the prediction of functional success after dacryocystorhinostomy. Methods: A cross-sectional study was conducted with 50 patients who underwent external dacryocystorhinostomy Group or transcanalicular dacryocystorhinostomy Group and had anatomically patent ducts during irrigation, with a minimum 6-month follow-up. The external dacryocystorhinostomy, defined as the time from instillation of the dye into the conjunctival sac until its flow from the rhinostomy site, was performed in all patients. Positive predictive value of the endoscopic dye transit test to assess functional success was analyzed. The cutoff point was determined using a receiver operating characteristic curve. Results: Of the 50 patients, 44 (88%) exhibited subjective improvement or complete resolution of epiphora (functional success). The best cutoff point for the endoscopic dye transit test was 60 s. Of 39 patients with endoscopic dye transit test £60 s, 38 (97.4%) exhibited functional success, demonstrating a 97.4% positive predictive value. Conclusion: The endoscopic dye transit test £60 s is a reliable tool to predict functional success and good prognosis after external or laser transcanalicular dacryocystorhinostomy.


RESUMO Objetivo: Determinar a confiabilidade do teste endoscópico do corante na predição do sucesso funcional após dacriocistorrinostomia. Métodos: Estudo transversal com 50 pacientes submetidos ao grupo de dacriocistorrinostomia externa ou grupo dacriocistorrinostomia transcanalicular e que possuíam dutos anatomicamente patentes pela irrigação, com seguimento mínimo de 6 meses. A dacriocistorrinostomia externa, definida como o tempo desde a instilação do corante no saco conjuntival até o fluxo do local da rinostomia, foi realizada em todos os pacientes. O valor preditivo positivo do teste endoscópico do corante para avaliar o sucesso funcional foi analisado. O ponto de corte foi determinado usando uma curva característica de operação do receptor. Resultados: Dos 50 pacientes, 44 (88%) apresentaram melhora subjetiva ou resolução completa da epífora (sucesso funcional). O melhor ponto de corte para o teste endoscópico do corante foi de 60 s. Dos 39 pacientes com teste endoscópico do corante £60 s, 38 (97,4%) apresentaram sucesso funcional, demonstrando um valor preditivo positivo de 97,4%. Conclusão: O teste en­doscópico do corante £60 s é uma ferramenta confiável para predizer o sucesso funcional e o bom prognóstico após dacriocistorrinostomia transcanalicular externa ou a laser.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Aged, 80 and over , Dacryocystorhinostomy/methods , Lasers, Semiconductor/therapeutic use , Lacrimal Duct Obstruction/diagnosis , Nasolacrimal Duct/physiopathology , Cross-Sectional Studies , Predictive Value of Tests , Reproducibility of Results , Contrast Media , Endoscopy/methods
12.
Acta Paul. Enferm. (Online) ; 33: eAPE20190115, 2020. tab
Article in Portuguese | LILACS, BDENF | ID: biblio-1100873

ABSTRACT

Resumo Objetivo descrever as características dos acidentes de motocicleta e das vítimas hospitalizadas em um hospital de grande porte e referência em trauma no Brasil. Métodos foi realizada uma pesquisa documental com uma amostra de 343 vítimas de acidentes de motocicleta internadas no Hospital de Restauração no ano de 2014. Os dados foram coletados nos prontuários dos pacientes. As variáveis demográficas foram analisadas e relacionadas a circunstâncias do acidente, clínicas e do tratamento. O programa Epi Info 7 foi utilizado para análise estatística descritiva. O teste do qui-quadrado de Pearson foi utilizado para analisar proporções. Nos casos em que as premissas do teste do qui-quadrado não foram satisfatórias, foi aplicado o teste exato de Fisher. O nível de significância de 5% foi considerado para todas as conclusões. Resultados o maior número de acidentes envolveu o sexo masculino (87,5%), na faixa etária de 20 a 29 anos (34,7%), solteiros (86,7%). A maior frequência de acidentes ocorreu aos domingos (25,1%) e à noite (32,1%). A região corporal mais afetada foi a cabeça (43,9%). O tempo médio de internação foi de 15,9 ± 23,8 (1-161) dias. O desfecho principal foi alta hospitalar (88,5%). O teste de comparação de proporções foi significativo para todas as variáveis analisadas (valor de p <0,001). Algum tipo de sequela afetou 51 (14,8%) vítimas. Conclusão o perfil das vítimas foi sexo masculino, idade entre 20 e 29 anos e a cabeça como área corporal mais afetada. O perfil das internações por acidente de motocicleta em um hospital de trauma traz informações relevantes sobre as características das vítimas e dos acidentes, que podem auxiliar no desenvolvimento de estratégias de prevenção de lesões.


Resumen Objetivo Describir las características de los accidentes de motocicleta y de las víctimas internadas en un hospital de gran tamaño y referencia en trauma de Brasil. Métodos Se realizó una investigación documental con una muestra de 343 víctimas de accidentes de motocicleta internadas en el Hospital de Restauração en 2014. Los datos se recolectaron de las historias clínicas de los pacientes. Se analizaron las variables demográficas y se las relacionó con las circunstancias del accidente, clínicas y del tratamiento. Para el análisis estadístico descriptivo, se utilizó el programa Epi Info 7. Para analizar proporciones, se utilizó la prueba χ2 de Pearson. En los casos en que las premisas de la prueba χ2 de Pearson no fueron satisfactorias, se aplicó la prueba exacta de Fisher. Se consideró el nivel de significación de 5% en todas las conclusiones. Resultados En el mayor número de accidentes, los involucrados fueron del sexo masculino (87,5%), del grupo de edad de 20 a 29 años (34,7%), solteros (86,7%). La mayor frecuencia de accidentes ocurrió los domingos (25,1%) y a la noche (32,1%). La región corporal más afectada fue la cabeza (43,9%). El tiempo promedio de internación fue de 15,9 ± 23,8 (1-161) días. El desenlace principal fue el alta hospitalaria (88,5%). La prueba de comparación de proporciones fue significativa en todas las variables analizadas (valor de p <0,001). Algún tipo de secuela afectó a 51 (14,8%) víctimas. Conclusión El perfil de las víctimas fue de sexo masculino, edad entre 20 y 29 años y la cabeza fue la zona corporal más afectada. El perfil de las internaciones por accidente de motocicleta en un hospital de trauma proporciona información relevante sobre las características de las víctimas y de los accidentes, que pueden servir para la elaboración de estrategias de prevención de lesiones.


Abstract Objective To describe the characteristics of motorcycle accidents and victims hospitalized in Brazilian a large hospital and reference in trauma. Methods A documentary research study was developed with a sample of 343 motorcycle accident victims hospitalized at the Hospital of Restoration in the year 2014. Data was collected in patients' medical records. Demographic variables were analyzed; related to the circumstances of the accident, clinics and treatment. The Epi Info 7 program was used, through descriptive statistics for analysis. Pearson's Chi-square test was used to analyze proportions. In cases where the assumptions of the chi-square test were not satisfied Fisher's exact test was applied. All conclusions were drawn considering the level of significance of 5%. Results The largest number was male (87.5%), in the age group of 20 to 29 years (34.7%), unmarried (86.7%). The highest frequency of accidents was in on Sunday (25.1%) and at night (32.1%). The most affected body region was the head (43.9%). The mean length of hospital stay was 15.9 ± 23.8 (1-161) days. The main outcome was hospital discharge (88.5%). The proportion comparison test was significant in all variables analyzed (p-value <0.001). 51 (14.8%) of the victims suffered some kind of side effect. Conclusion The profile of the victims was 20 to 29 years old, male, with the head being the most affected body area. The profile of hospitalizations due to motorcycle accidents in a trauma hospital, brings relevant information on the characteristics of victims and accidents, which may provide subsidies for injury prevention strategies.


Subject(s)
Humans , Male , Female , Infant, Newborn , Infant , Child, Preschool , Child , Adolescent , Adult , Middle Aged , Wounds and Injuries , Motorcycles , Accidents, Traffic/mortality , Accidents, Traffic/prevention & control , Electronic Health Records , Inpatients , Retrospective Studies , Emergencies
13.
Braz. dent. sci ; 23(4): 1-10, 2020. tab
Article in English | BBO, LILACS | ID: biblio-1121404

ABSTRACT

Objective: Tobacco dependence is quite variable among individuals because it includes many aspects such as psychological, emotional, behavioral, and cultural perspectives. This study aimed to evaluate the social and emotional issues of patients in a smoking cessation program through the generic and specific quality of life questionnaires. Material and Methods: Two generic questionnaires (SF36 and Fantastic Lifestyle) and two specific (SRQ-20 for depression and STAI s/t for levels of state and anxiety trait) were applied at the first meeting and after three months of treatment. Data were statistically analyzed by the Pearson correlation coefficient (significance level of 5%). Results: In total, 15 participants (10 men, 5 women), with mean age of 60 and 56, respectively. The mean of the smoking intake was 65.88±34.37 for men and 35.66±11.17 for women. SRQ20 and STAI s/t indicated that poor improvement in depression and anxiety was related to relapse; SF36 questionnaire indicated improvement in the domains of physical aspect limit, pain, social and emotional aspects; Fantastic Lifestyle indicated improvement according to its scale, being in a first moment "Regular" (53 points), and later, "Good" (55.67 points). Conclusion: In conclusion, smoking cessation treatment is correlated to the decrease in anxiety and depression levels and improvement of the general quality of life (AU)


Objetivo: A dependência do tabaco é bastante variável entre os indivíduos porque inclui muitos aspectos, como perspectivas psicológicas, emocionais, comportamentais e culturais. Este estudo teve como objetivo avaliar as questões sociais e emocionais de pacientes em um programa de cessação tabagágica por meio de questionários genéricos e específicos de qualidade de vida. Material e Métodos: Dois questionários genéricos (SF36 e Estilo de Vida Fantástico) e dois específicos (SRQ-20 para depressão e IDATE s/t para níveis de estado e traço de ansiedade) foram aplicados no primeiro encontro e após três meses de tratamento. Os dados foram analisados estatisticamente pelo coeficiente de correlação de Pearson (nível de significância de 5%). Resultados: No total, 15 participantes (10 homens, 5 mulheres), com média de idade de 60 e 56 anos, respectivamente. A média do consumo tabágico foi de 65,88 ± 34,37 para homens e 35,66 ± 11,17 para mulheres. SRQ20 e IDATE s/t indicaram que a fraca melhora na depressão e ansiedade estava relacionada à recaída; o questionário SF36 indicou melhora nos domínios limite do aspecto físico, dor, aspectos sociais e emocionais; Estilo de Vida Fantástico indicou melhora de acordo com sua escala, sendo em um primeiro momento "Regular" (53 pontos), e posteriormente, "Bom" (55.67 pontos). Conclusão: Em conclusão, o tratamento para cessação do tabagismo está correlacionado à diminuição dos níveis de ansiedade e depressão e à melhora da qualidade de vida geral (AU)


Subject(s)
Humans , Male , Female , Middle Aged , Anxiety , Quality of Life , Tobacco Use Cessation , Depression , Life Style
14.
Rev. Inst. Adolfo Lutz (Online) ; 78: 1-21, dez. 2019. tab
Article in Portuguese | LILACS, CONASS, ColecionaSUS, SES-SP, SESSP-ACVSES, SESSP-IALPROD, SES-SP, SESSP-IALACERVO | ID: biblio-1146688

ABSTRACT

A defumação é um processo rotineiramente empregado nos alimentos como técnica de conservação, e uma maneira de proporcionar as características sensoriais específicas. Entretanto, o processo pode levar à formação de hidrocarbonetos policíclicos aromáticos (HPAs), que são compostos com dois ou mais anéis aromáticos condensados, alguns deles considerados carcinogênicos, mutagênicos e teratogênicos. Estudos em diversos países indicam que a contaminação de produtos cárneos defumados por diferentes HPAs é elevada e frequente, e desta maneira pode apresentar risco à saúde humana. O Brasil tem sido um dos maiores consumidores de carne no mundo, com tendência de aumentar o consumo de alimentos processados, e não é conhecida a real exposição da população aos HPAs pela ingestão de produtos cárneos defumados. Não há dados nacionais recentes quanto à contaminação destes alimentos com estes produtos. Considerando este panorama, o presente trabalho tem como objetivo realizar a revisão das principais metodologias analíticas, dos aspectos regulatórios e dos níveis de HPAs detectados em produtos cárneos defumados. Ademais, são apresentadas as maneiras de reduzir a contaminação dos alimentos por estes compostos. (AU)


Smoking is a common process employed in food as a conservation technique, as well as to provide the specific sensory characteristics. However, the process can lead to the formation of polycyclic aromatic hydrocarbons (PAHs), which are composed of two or more fused aromatic rings, and some of them are considered carcinogenic, mutagenic and teratogenic. Studies conducted in several countries indicate that contamination of smoked meat products by different PAHs is high and frequent, and it may cause a risk to human health. Although Brazil has been one of the largest consumers of meat in the world, with a trend to increase the consumption of processed foods, it has not known the real population exposure to PAHs by consuming the smoked meat products. There is no recent national data on the contamination of these foods. Considering this scenario, this study aimed at reviewing the main analytical methodologies, the regulatory aspects and the levels of PAHs found in the smoked meat products. In addition, the forms to reduce the contamination by these compounds are presented. (AU)


Subject(s)
Food Contamination , Evaluation Studies as Topic , Flavoring Agents , Hydrocarbons , Meat
15.
Rev. Inst. Adolfo Lutz ; 78: e1779, dez. 2019. tab
Article in Portuguese | LILACS, VETINDEX | ID: biblio-1489592

ABSTRACT

A defumação é um processo rotineiramente empregado nos alimentos como técnica de conservação, e uma maneira de proporcionar as características sensoriais específicas. Entretanto, o processo pode levar à formação de hidrocarbonetos policíclicos aromáticos (HPAs), que são compostos com dois ou mais anéis aromáticos condensados, alguns deles considerados carcinogênicos, mutagênicos e teratogênicos. Estudos em diversos países indicam que a contaminação de produtos cárneos defumados por diferentes HPAs é elevada e frequente, e desta maneira pode apresentar risco à saúde humana. O Brasil tem sido um dos maiores consumidores de carne no mundo, com tendência de aumentar o consumo de alimentos processados, e não é conhecida a real exposição da população aos HPAs pela ingestão de produtos cárneos defumados. Não há dados nacionais recentes quanto à contaminação destes alimentos com estes produtos. Considerando este panorama, o presente trabalho tem como objetivo realizar a revisão das principais metodologias analíticas, dos aspectos regulatórios e dos níveis de HPAs detectados em produtos cárneos defumados. Ademais, são apresentadas as maneiras de reduzir a contaminação dos alimentos por estes compostos.


Smoking is a common process employed in food as a conservation technique, as well as to provide the specific sensory characteristics. However, the process can lead to the formation of polycyclic aromatic hydrocarbons (PAHs), which are composed of two or more fused aromatic rings, and some of them are considered carcinogenic, mutagenic and teratogenic. Studies conducted in several countries indicate that contamination of smoked meat products by different PAHs is high and frequent, and it may cause a risk to human health. Although Brazil has been one of the largest consumers of meat in the world, with a trend to increase the consumption of processed foods, it has not known the real population exposure to PAHs by consuming the smoked meat products. There is no recent national data on the contamination of these foods. Considering this scenario, this study aimed at reviewing the main analytical methodologies, the regulatory aspects and the levels of PAHs found in the smoked meat products. In addition, the forms to reduce the contamination by these compounds are presented.


Subject(s)
Food, Preserved/analysis , Polycyclic Aromatic Hydrocarbons/isolation & purification , Laboratory and Fieldwork Analytical Methods , Meat Products/analysis , Carcinogenic Danger , Carcinogenicity Tests , Mutagenicity Tests
16.
São Paulo med. j ; 137(1): 66-74, Jan.-Feb. 2019. tab, graf
Article in English | LILACS | ID: biblio-1004734

ABSTRACT

ABSTRACT BACKGROUND: The pleural drain insertion site after coronary artery bypass graft (CABG) surgery may alter lung function, especially respiratory muscle strength. The main objective of this study was to compare the effectiveness and safety of use of the left lateral intercostal region versus the subxiphoid position for pleural drainage during elective CABG surgery using extracorporeal circulation (ECC). DESIGN AND SETTING: Randomized trial conducted in a tertiary-level hospital in Porto Alegre, Brazil. METHODS: 48 patients were assigned to group 1 (pleural drain in the left lateral intercostal region) or group 2 (pleural drain in the subxiphoid position). Respiratory muscle strength was measured in terms of maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP), in cmH2O, by means of manovacuometry preoperatively, 24 and 72 hours after drain removal and before discharge from hospital. Painand dyspnea scales, presence of infections, pleural effusion and atelectasis, duration of drain use, drainage volumes and surgical reinterventions were also evaluated. RESULTS: After adjustments, there were no significant differences between the groups at the end of the study (before discharge), in predicted percentages either for MIP (delta group 1: -17.21% versus delta group 2: -22.26%; P = 0.09) or for MEP (delta group 1: -9.38% versus delta group 2: -13.13%; P = 0.17). Therewere no differences between the groups in relation to other outcomes. CONCLUSION: There was no difference in maximal respiratory pressures in relation to the pleural drain insertion site among patients who underwent CABG surgery using ECC. TRIAL REGISTRATION: ReBEc V1111.1159.4447.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Aged, 80 and over , Drainage/instrumentation , Drainage/methods , Coronary Artery Bypass/methods , Pleural Cavity/surgery , Pleural Effusion/etiology , Pleural Effusion/prevention & control , Time Factors , Coronary Artery Disease/surgery , Pain Measurement , Drainage/adverse effects , Coronary Artery Bypass/adverse effects , Reproducibility of Results , Treatment Outcome , Elective Surgical Procedures/methods , Statistics, Nonparametric , Extracorporeal Circulation/methods , Maximal Respiratory Pressures
17.
J. bras. pneumol ; 45(3): e20180314, 2019. tab
Article in English | LILACS | ID: biblio-1012558

ABSTRACT

ABSTRACT Smoking is the leading cause of respiratory disease (RD). The harmful effects of smoking on the respiratory system begin in utero and influence immune responses throughout childhood and adult life. In comparison with "healthy" smokers, smokers with RD have peculiarities that can impede smoking cessation, such as a higher level of nicotine dependence; nicotine withdrawal; higher levels of exhaled carbon monoxide; low motivation and low self-efficacy; greater concern about weight gain; and a high prevalence of anxiety and depression. In addition, they require more intensive, prolonged treatment. It is always necessary to educate such individuals about the fact that quitting smoking is the only measure that will reduce the progression of RD and improve their quality of life, regardless of the duration and severity of the disease. Physicians should always offer smoking cessation treatment. Outpatient or inpatient smoking cessation treatment should be multidisciplinary, based on behavioral interventions and pharmacotherapy. It will thus be more effective and cost-effective, doubling the chances of success.


RESUMO O tabagismo é o maior responsável pelas doenças respiratórias (DR). Os efeitos nocivos do tabaco sobre o aparelho respiratório se iniciam ainda intraútero e influenciam as respostas imunológicas ao longo da infância e vida adulta. Os tabagistas com DR possuem peculiaridades que podem dificultar a cessação tabágica, tais como maior grau de dependência e de abstinência de nicotina; níveis mais elevados de monóxido de carbono exalado; motivação e autoeficácia baixas; maior preocupação com ganho ponderal; e elevada prevalência de ansiedade e depressão. Além disso, requerem tratamento mais intensivo e prolongado. É necessário esclarecer sempre o paciente sobre o fato de que parar de fumar será a única medida que irá reduzir a progressão das DR e melhorar sua qualidade de vida, independentemente do tempo e da gravidade da doença. Os médicos devem sempre oferecer o tratamento de cessação tabágica. O tratamento ambulatorial ou hospitalar deve ser multidisciplinar, baseado em intervenções comportamentais e farmacoterapia, sendo eficaz e custo-efetivo, dobrando as chances de sucesso.


Subject(s)
Humans , Respiratory Tract Diseases/etiology , Respiratory Tract Diseases/therapy , Tobacco Use Disorder/complications , Smoking/adverse effects , Smoking Cessation , Tobacco Use Disorder/therapy , Tuberculosis, Pulmonary/etiology , Tuberculosis, Pulmonary/therapy , Risk Factors , Pulmonary Disease, Chronic Obstructive/etiology , Pulmonary Disease, Chronic Obstructive/therapy , Lung Neoplasms/etiology , Lung Neoplasms/therapy
18.
Braz. oral res. (Online) ; 33: e079, 2019. graf
Article in English | LILACS | ID: biblio-1019604

ABSTRACT

Abstract Cell therapy associated with guided bone regeneration (GBR) can be used to treat bone defects under challenging conditions such as osteoporosis. This study aimed to evaluate the effect of mesenchymal stem cells (MSCs) in combination with a poly(vinylidene-trifluoroethylene)/barium titanate (PVDF-TrFE/BT) membrane on bone repair in osteoporotic rats. Osteoporosis was induced in female rats by bilateral removal of the ovaries (OVX) or sham surgery (SHAM), and the osteoporotic condition was characterized after 5 months by microtomographic and morphometric analyses. Calvarial defects were created in osteoporotic rats that immediately received the PVDF-TrFE/BT membrane. After 2 weeks, bone marrow-derived MSCs from healthy rats, characterized by the expression of surface markers using flow cytometry, or phosphate-buffered saline (PBS) (Control) were injected into the defects and bone formation was evaluated 4 weeks post-injection by microtomographic, morphometric, and histological analyses. A reduction in the amount of bone tissue in the femurs of OVX compared with SHAM rats confirmed the osteoporotic condition of the experimental model. More bone formation was observed when the defects were injected with MSCs compared to that with PBS. The modification that we are proposing in this study for the classical GBR approach where cells are locally injected after a membrane implantation may be a promising therapeutic strategy to increase bone formation under osteoporotic condition.


Subject(s)
Animals , Female , Polyvinyls/pharmacology , Titanium/pharmacology , Barium Compounds/pharmacology , Guided Tissue Regeneration/methods , Mesenchymal Stem Cells/physiology , Osteogenesis/drug effects , Osteoporosis/physiopathology , Osteoporosis/therapy , Polyvinyls/chemistry , Time Factors , Titanium/chemistry , Bone Regeneration/drug effects , Bone Regeneration/physiology , Ovariectomy , Random Allocation , Bone Density , Reproducibility of Results , Treatment Outcome , Rats, Wistar , Barium Compounds/chemistry , Imaging, Three-Dimensional , Mesenchymal Stem Cells/chemistry , Flow Cytometry
19.
Rev. bras. oftalmol ; 77(6): 373-375, nov.-dez. 2018. graf
Article in English | LILACS | ID: biblio-985311

ABSTRACT

Abstract We report a case of primary bilateral mucosa associated lymphoid tissue (MALT) lymphoma of the lacrimal sac. MALT lymphoma is a subtype of Non-Hodgkin's Lymphoma of the ocular adnexa. When the primary site of the lymphoma is the lacrimal sac, it mimics chronic dacryocystitis. This may delay diagnosis, with potentially lethal results.


Resumo Descrevemos um caso de um linfoma MALT bilateral, simétrico e primário de saco lacrimal. O linfoma MALT é um subtipo do Linfoma Não-Hodkin dos anexos oculares. Quando o local primário do linfoma é o saco lacrimal, ele pode simular uma dacriocistite crônica. Essa situação pode atrasar o diagnóstico e ter consequências fatais.


Subject(s)
Humans , Male , Middle Aged , Lymphoma, B-Cell, Marginal Zone/diagnosis , Eye Neoplasms/diagnosis , Lacrimal Apparatus Diseases/diagnosis , Biopsy , Magnetic Resonance Imaging , Chlorambucil/therapeutic use , Lymphoma, B-Cell, Marginal Zone/pathology , Lymphoma, B-Cell, Marginal Zone/therapy , Eye Neoplasms/therapy , Rituximab/therapeutic use , Lacrimal Apparatus Diseases/therapy
20.
Braz. j. microbiol ; 49(3): 601-606, July-Sept. 2018. tab, graf
Article in English | LILACS | ID: biblio-951806

ABSTRACT

Abstract Salmonella Gallinarum is a host-restrict pathogen that causes fowl typhoid, a severe systemic disease that is one of the major concerns to the poultry industry worldwide. When infecting the bird, SG makes use of evasion mechanisms to survive and to replicate within macrophages. In this context, phoPQ genes encode a two-component regulatory system (PhoPQ) that regulates virulence genes responsible for adaptation of Salmonella spp. to antimicrobial factors such as low pH, antimicrobial peptides and deprivation of bivalent cations. The role of the mentioned genes to SG remains to be investigated. In the present study a phoPQ-depleted SG strain (SG ΔphoPQ) was constructed and its virulence assessed in twenty-day-old laying hens susceptible to fowl typhoid. SG ΔphoPQ did cause neither clinical signs nor mortality in birds orally challenged, being non-pathogenic. Furthermore, this strain was not recovered from livers or spleens. On the other hand, chickens challenged subcutaneously with the mutant strain had discreet to moderate pathological changes and also low bacterial counts in liver and spleen tissues. These findings show that SG ΔphoPQ is attenuated to susceptible chickens and suggest that these genes are important during chicken infection by SG.


Subject(s)
Animals , Female , Poultry Diseases/microbiology , Salmonella Infections, Animal/microbiology , Bacterial Proteins/genetics , Salmonella enterica/metabolism , Salmonella enterica/pathogenicity , Gene Silencing , Poultry Diseases/pathology , Salmonella Infections, Animal/pathology , Spleen/microbiology , Spleen/pathology , Bacterial Proteins/metabolism , Virulence , Chickens , Salmonella enterica/genetics
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