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Id: biblio-1101286
Autor: Souza, Vívian Gonçalves Carvalho; Lopes, Danielle Fernandes; Machado, Fernanda Campos; Fabri, Rodrigo Luiz; Apolônio, Ana Carolina Morais.
Título: The Novel Coronavirus: An Alert for Pacifiers' Disinfection
Fonte: Pesqui. bras. odontopediatria clín. integr;20:e0071, 2020. tab, graf.
Idioma: en.
Resumo: Abstract Objective: To evaluate the best strategy for pacifier disinfection methods. Material and Methods: The literature search was conducted on MEDLINE/PubMed, Scielo, Lilacs, Web of Science, and Scopus databases to find all relevant articles published over the past 20 years, based on PRISMA guidelines. Two reviewers extracted data independently by using a standardized form. The following factors were recorded: country of study, type of study, pacifier material, sample number, microorganisms analyzed, decontamination methods used, method accessibility and results found. Results: A total of 121 articles were obtained from all databases. The selected documents underwent a final screening, resulting in 8 articles. The method of disinfection analyzed by the literature were: 3.5% neutral detergent, apple cider vinegar 70% spray, boiling water during 15 minutes, sodium hypochlorite 2.5, hydrogen peroxide 70% spray, chlorhexidine 0.12%, Brushtox®, sterile water and microwave. Conclusion: Because of the broad methods for pacifier disinfection and different levels of accessibility to disinfectant agents, the pacifier consensus for decontamination remains unclear. Although the disinfection methods are diverse, the methods suggested to its disinfection were identified and described in this article.
Descritores: Comportamento de Sucção
Descontaminação
Coronavirus
Chupetas/microbiologia
Microbiologia Ambiental
-Brasil
Desinfecção
Interpretação Estatística de Dados
Tipo de Publ: Metanálise
Revisão Sistemática
Responsável: BR1264.1 - Biblioteca Setorial Prof Alberto M Campos


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Id: biblio-829669
Autor: Romero, Cintia Mariana; Vivacqua, Cristian Germán; Abdulhamid, María Belén; Baigori, Mario Domingo; Slanis, Alberto Carlos; Allori, María Cristina Gaudioso de; Tereschuk, María Laura.
Título: Biofilm inhibition activity of traditional medicinal plants from Northwestern Argentina against native pathogen and environmental microorganisms
Fonte: Rev. Soc. Bras. Med. Trop;49(6):703-712, Dec. 2016. tab, graf.
Idioma: en.
Projeto: Agencia de Promoción Científica y Tecnológica; . Programa de Investigación de la Universidad Nacional de Tucumán.
Resumo: Abstract: INTRODUCTION: Plants have been commonly used in popular medicine of most cultures for the treatment of disease. The in vitro antimicrobial activity of certain Argentine plants used in traditional medicine has been reported. The aim of this study was to investigate the antimicrobial, anti-biofilm, and anti-cell adherence activities of native plants (Larrea divaricata, Tagetes minuta, Tessaria absinthioides, Lycium chilense, and Schinus fasciculatus) collected in northwestern Argentina. METHODS: The activities of the five plant species were evaluated in Bacillus strains and clinical strains of coagulase-negative Staphylococcus isolated from northwestern Argentina and identified by 16S rDNA. RESULT: Lycium chilense and Schinus fasciculatus were the most effective antimicrobial plant extracts (15.62µg/ml and 62.50µg/ml for Staphylococcus sp. Mcr1 and Bacillus sp. Mcn4, respectively). The highest (66%) anti-biofilm activity against Bacillus sp. Mcn4 was observed with T. absinthioides and L. divaricate extracts. The highest (68%) anti-biofilm activity against Staphylococcus sp. Mcr1 was observed with L. chilense extract. T. minuta, T. absinthioides, and L. divaricata showed percentages of anti-biofilm activity of between 55% and 62%. The anti-adherence effects of T. minuta and L. chilense observed in Bacillus sp. Mcn4 reflected a difference of only 22% and 10%, respectively, between anti-adherence and biofilm inhibition. Thus, the inhibition of biofilm could be related to cell adherence. In Staphylococcus sp. Mcr1, all plant extracts produced low anti-adherence percentages. CONCLUSION: These five species may represent a source of alternative drugs derived from plant extracts, based on ethnobotanical knowledge from northwest Argentina.
Descritores: Plantas Medicinais/química
Staphylococcus/efeitos dos fármacos
Bacillus/efeitos dos fármacos
Extratos Vegetais/farmacologia
Biofilmes/efeitos dos fármacos
-Argentina
Plantas Medicinais/classificação
Testes de Sensibilidade Microbiana
Adesão Celular/efeitos dos fármacos
Biofilmes/crescimento & desenvolvimento
Anacardiaceae/química
Tagetes/química
Lycium/química
Larrea/química
Microbiologia Ambiental
Limites: Humanos
Responsável: BR1.1 - BIREME


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Id: biblio-842841
Autor: Raro, Otávio Hallal Ferreira; Gallo, Stephanie Wagner; Ferreira, Carlos Alexandre Sanchez; Oliveira, Sílvia Dias de.
Título: Carbapenem-resistant Acinetobacter baumannii contamination in an intensive care unit
Fonte: Rev. Soc. Bras. Med. Trop;50(2):167-172, Mar.-Apr. 2017. tab.
Idioma: en.
Resumo: Abstract INTRODUCTION: Acinetobacter baumannii is a major pathogen causing infections in intensive care units (ICUs). In this study, we aimed to evaluate the presence of A. baumannii in an ICU environment and gloves from ICU workers and to characterize the antimicrobial resistance of the isolates in comparison with those isolated from ICU patients at the same hospital. METHODS: ICU samples were collected from March to November 2010. Isolates biochemically characterized as Acinetobacter calcoaceticus-Acinetobacter baumannii complex were evaluated by PCR targeting the 16S rDNA and bla OXA-51 genes. Antimicrobial susceptibility was determined using the disk diffusion method, and carbapenem-resistant isolates were also evaluated for the minimum inhibitory concentration of imipenem using broth microdilution. The presence of the bla OXA-23 gene was evaluated in isolates with reduced susceptibility to carbapenems. RESULTS: A. baumannii was detected in 9.5% (84) of the 886 samples collected from the ICU environment, including from furniture, medical devices, and gloves, with bed rails being the most contaminated location (23.8%; 20/84). Multidrug-resistant (MDR) A. baumannii was found in 98.8% (83/84) of non-clinical and 97.8% (45/46) of clinical isolates. Reduced susceptibility to carbapenems was detected in 83.3% (70/84) of non-clinical and 80.4% (37/46) of clinical isolates. All isolates resistant to carbapenems harbored bla OXA-23. CONCLUSIONS: We found a strong similarity between the antimicrobial susceptibility profiles of non-clinical and clinical A. baumannii isolates. Such data highlight the ICU environment as a potential origin for the persistence of MDR A. baumannii, and hence the ICU may be a source of hospital-acquired infections caused by this microorganism.
Descritores: Carbapenêmicos/farmacologia
Reação em Cadeia da Polimerase
Luvas Protetoras/microbiologia
Acinetobacter baumannii/efeitos dos fármacos
Microbiologia Ambiental
Equipamentos e Provisões Hospitalares/microbiologia
Antibacterianos/farmacologia
-Farmacorresistência Bacteriana
Acinetobacter baumannii/isolamento & purificação
Acinetobacter baumannii/enzimologia
Testes de Sensibilidade a Antimicrobianos por Disco-Difusão
Limites: Humanos
Tipo de Publ: Estudo Comparativo
Responsável: BR1.1 - BIREME


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Id: lil-761167
Autor: Nweze, Emeka I; Kechia, Fred A; Dibua, Uju E; Eze, Charles; Onoja, Uwakwe S.
Título: Isolation of cryptococcus neoformans from environmental samples collected in Southeastern Nigeria / Isolamento de Cryptococcus neoformans de amostras ambientais coletadas no sudeste da Nigéria
Fonte: Rev. Inst. Med. Trop. Säo Paulo;57(4):295-298, July-Aug. 2015. tab, ilus.
Idioma: en.
Resumo: SUMMARYCryptococcosis caused by Cryptococcus neoformansis the second most common fungal opportunistic pathogen and a lifethreatening infection with serious clinical manifestations especially in HIV/AIDS and other immunocompromised patients. In Nigeria, HIV/AIDS infection has reached an alarming level. Despite this, information on the presence of this fungus in clinical and environmental samples is very scanty in Nigeria and many other parts of Africa. We set out to evaluate the presence of Cryptococcus neoformansor C. gattiiin pigeon droppings obtained from Southeastern Nigeria. One hundred and seventy-seven samples of pigeon droppings from six sample types were collected. The area covered comprised of ten cities and other locations spanning across five States in Nigeria. Using established techniques, Cryptococcus neoformanswas isolated from 39 of the 177 (22.0%) samples overall. No C. gattiiwas isolated. Most of the isolates (32.4%) were recovered from dovecotes (11 of 34) followed closely by samples taken from markets (31.8%; seven of 22) and least from the church (4.0%; one of 25). The highest isolation rate (38.9%) was found in samples from Enugu-Ezike(seven of 23) while the least came from Afikpoand the other locations each with 9.1% isolation rate. This is the first large-scale screening of Cryptococcus neoformansfrom pigeon droppings in Nigeria. The ecological and epidemiological significance of these findings are discussed.

RESUMOA criptococose, causada por Cryptococcus neoformans, é o segundo patógeno fúngico oportunista mais comum em infecções com risco de vida e manifestações clínicas graves, especialmente em HIV/AIDS e outros pacientes imunocomprometidos. Na Nigéria, a infecção pelo HIV/AIDS atingiu um nível alarmante. Apesar disso, informações sobre a presença desses fungos em amostras clínicas e ambientais é muito escassa na Nigéria e em muitas outras partes da África. Propusemo-nos a avaliar a presença de Cryptococcus neoformansou C. gattiiem fezes de pombos obtidos do sudeste da Nigéria. Foram coletadas 177 amostras de fezes de pombos de seis localidades. A área coberta foi composta por dez cidades e outras localidades abrangendo cinco Estados na Nigéria. Usando técnicas estabelecidas, Cryptococcus neoformansfoi isolado de 39 do total de 177 (22,0%) amostras. Nenhuma amostra de C. gattiifoi isolada. A maioria dos isolados (32,4%) foi recuperada de pombais (11 de 34), seguido de perto por amostras colhidas em mercados (31,8%; 7 de 22) e por último na igreja (4,0%; 1 de 25). A maior taxa de isolamento (38,9%) foi encontrada em amostras de Enugu-Ezike (7 de 23), enquanto a menor taxa foi de Afikpo e os outros locais, cada um deles com taxa de isolamento de 9,1%. Esta é a primeira triagem em larga escala de Cryptococcus neoformansem fezes de pombos na Nigéria. A importância ecológica e epidemiológica destes achados é discutida.
Descritores: Columbidae/microbiologia
Cryptococcus neoformans/isolamento & purificação
Microbiologia Ambiental
Fezes/microbiologia
-Nigéria
Limites: Animais
Responsável: BR1.1 - BIREME


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Id: biblio-1058084
Autor: Ulloa, Soledad; Arata, Loredana; Alarcón, Pedro; Araya, Pamela; Hormazábal, Juan Carlos; Fernández, Jorge.
Título: Caracterización genética de cepas de Listeria monocytogenes aisladas durante los años 2007-2014 en Chile / Genetic characterization of Listeria monocytogenes strains isolated during 2007-2014 in Chile
Fonte: Rev. chil. infectol;36(5):585-590, oct. 2019. graf.
Idioma: es.
Resumo: Resumen Introducción: Listeria monocytogenes es un patógeno transmitido por alimentos que causa listeriosis, una enfermedad que puede presentarse como gastroenteritis febril o en una forma invasora que tiene altas tasas de mortalidad. Hasta el momento, ha sido poco estudiada la diversidad genética de cepas de L. monocytogenes aisladas desde pacientes, alimentos y fuentes ambientales en Chile. Objetivo: Caracterizar genéticamente cepas de L. monocytogenes de estos tres orígenes recibidas por el Instituto de Salud Pública de Chile (ISP) entre los años 2007 y 2014. Material y Métodos: Se seleccionaron 94 cepas de L. monocytogenes correspondientes a 94 pulsotipos diferentes identificados por electroforesis en gel de campo pulsado (PFGE), se extrajo ADN y se realizó serotipificación mediante reacción de polimerasa en cadena (RPC) y tipificación de secuencias multilocus (MLST). Resultados: El serotipo más común fue 4b (55,3%), seguido de 1/2a (25,5%), 1/2b (17%) y 1/2c (2,2%). Se identificaron 32 secuencias tipo (ST), de las cuales cuatro fueron nuevas, y las predominantes fueron ST1 (28,7%) y ST2 (13,8%). La totalidad de las cepas se agrupó en los Linajes I y II. Conclusiones: Se observó una gran variabilidad genética en las cepas de L. monocytogenes analizadas, siendo predominantes las secuencias tipo ST1 y ST2, ambas pertenecientes al Linaje I. Nuestros resultados contribuyen a conocer la estructura poblacional de este patógeno en Chile y su presencia en muestras clínicas, alimentos y el medio ambiente.

Background: Listeria monocytogenes is a foodborne pathogen that causes listeriosis, a disease that can present as febrile gastroenteritis or as an invasive form that has high mortality rates. So far, the genetic diversity of strains of L. monocytogenes isolated from patients, foods and environmental sources in Chile has been poorly studied. Aim: To characterize genetically L. monocytogenes strains received by the Institute of Public Health of Chile (ISP) between 2007 and 2014. Methods: We selected 94 strains of L. monocytogenes corresponding to 94 different pulsotypes identified by pulsed field gel electrophoresis (PFGE), DNA was extracted and serotyping was performed by polymerase chain reaction (PCR) and multilocus sequence typing (MLST). Results: The most common serotype was 4b (55.3%), followed by serotypes 1/2a (25.5%), 1/2b (17%) and 1/2c (2.2%). 32 sequence-type (ST) were identified, of which 4 were new, and the predominant ones were ST1 (28.7%) and ST2 (13.8%). All the strains of L. monocytogenes were grouped in Lineages I and II. Conclusions: A great genetic variability was observed in the strains of L. monocytogenes analyzed, being predominant the ST1 and ST2, both belonging to Lineage I. Our results contribute to know the population structure of this pathogen in Chile and its presence in clinical samples, food and the environment.
Descritores: Listeria monocytogenes/isolamento & purificação
Listeria monocytogenes/genética
-Fatores de Tempo
Variação Genética
Sorotipagem
Chile
Reação em Cadeia da Polimerase
Eletroforese em Gel de Campo Pulsado
Microbiologia Ambiental
Tipagem de Sequências Multilocus
Microbiologia de Alimentos
Listeriose/microbiologia
Limites: Humanos
Responsável: CL1.1 - Biblioteca Central


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Id: biblio-991369
Autor: Aravena, Carmen; Valencia, Bárbara; Villegas, Andrea; Ortega, Mauricio; Fernández R, Alda; Araya R, Pamela; Saavedra, Aníbal; Del Campo, Rosa.
Título: Caracterización de cepas clínicas y ambientales de Salmonella enterica subsp. enterica serovar Heidelberg aisladas en Chile / Characterization of Salmonella Heidelberg strains isolated in Chile
Fonte: Rev. méd. Chile;147(1):24-33, 2019. tab.
Idioma: es.
Projeto: Dirección de Investigación Universidad de Valparaíso.
Resumo: Background: Salmonella Heidelberg (S. Heidelberg) causes gastroenteritis and sometimes bacteremia and endocarditis. In other countries, this serovar has multidrug resistance including extended-spectrum β-lactamases (ESBLs) and AmpC (β-lactamases (AmpC), associated with the blaCMY-2 gene. In Chile, an outbreak by S. Heidelberg occurred in 2011, the phenotypic and genetic characteristics of Chilean strains are unknown. Aim: To determine the antimicrobial susceptibility, presence of plasmids and virulence factor genes in S. Heidelberg strains isolated in Chile over the period 2006-2011. Material and Methods: In sixty-one S. Heidelberg clinical and environmental strains collected by the Public Health Institute in Chile during 2006-2011, antimicrobial susceptibility, plasmids and virulence factor genes (invA, sifA, pefA, agfA, lpfA and, stkD) were studied. Results: S. Heidelberg had a high susceptibility to sulfamethoxazole-trimethoprim, gentamicin, ceftriaxone, ceftiofur, chloramphenicol, amoxicillin-clavulanic acid and ampicillin. However, 52% had decreased susceptibility to ciprofloxacin and 33% resistance to tetracycline. ESBLs were detected in three strains isolated from blood cultures, environment and human feces. The latter strain was positive for AmpC and blaCMY-2 gene. Fifty three of 61 strains showed one to seven plasmids of 0.8 to approximately 30 kb. Most plasmids were small with sizes between 0.8 and 2 kb. All isolates were positive for all genes except pefA. Conclusions: S. Heidelberg isolated from Chilean samples was susceptible to first-line antimicrobials, except tetracycline and ciprofloxacin. The emergence of strains with ESBLs and AmpC should be a warning. The strains were homogeneous for virulence genes, but heterogeneous in their plasmids.
Descritores: Plasmídeos/isolamento & purificação
Salmonella/isolamento & purificação
Salmonella/efeitos dos fármacos
Antibacterianos/farmacologia
-Valores de Referência
Salmonella/genética
Salmonella/patogenicidade
Fatores de Tempo
Virulência
DNA Bacteriano
Testes de Sensibilidade Microbiana
Chile
Eletroforese em Gel de Campo Pulsado
Farmacorresistência Bacteriana Múltipla
Microbiologia Ambiental
Limites: Humanos
Responsável: CL1.1 - Biblioteca Central


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Id: biblio-1041900
Autor: González, Mikel A; Rodríguez Sosa, María Altagracia; Vásquez Bautista, Yohan Enmanuel; Diéguez Fernández, Lorenzo; Borge de Prada, Miguel; Guerrero, Kelvin A; Alarcón-Elbal, Pedro María.
Título: Micro-environmental features associated to container-dwelling mosquitoes (Diptera: Culicidae) in an urban cemetery of the Dominican Republic / Variables microambientales asociadas a mosquitos (Diptera: Culicidae) que habitan en recipientes en un cementerio urbano de República Dominicana
Fonte: Rev. biol. trop;67(1):132-145, Jan.-Mar. 2019. tab, graf.
Idioma: en.
Resumo: Abstract Mosquitoes (Diptera: Culicidae) are important vectors of diverse pathogenic organisms, particularly arboviruses and protozoa. The immature stages of mosquitoes occur in a wide range of natural or human-made aquatic habitats. On this basis, some anthropogenic places such as cemeteries, usually serve as thrive and productive artificial-breeding habitats for mosquitoes. Despite being important foci for vector species, urban cemeteries are frequently overlooked in control and surveillance programs. This study evaluates the association of ecological variables and attributes (type of material, presence of flowers, water availability and height from the ground) of the breeding sites with the levels of infestation of mosquito immature stages. In 2017, an entire urban cemetery in Jarabacoa (Dominican Republic) was sampled at two different climatic periods (March: dry and August: rainy) for the characterization of the artificial breeding-sites, collection of immature stages of culicids and subsequent laboratory rearing for species identification. In total 968 containers were studied, containing 7 758 immature stages in 203 (21.0 %) water-filled containers which accounted for four species: Culex quinquefasciatus (50.5 %), Aedes aegypti (47.1 %), Aedes albopictus (1.9 %) and Culex nigripalpus (0.4 %). The mean of A. aegypti immatures in infested containers was roughly two times higher compared to C. quinquefasciatus and significantly lower compared to A. albopictus. The total Container Index (CI) was 20.9 %, and among the type of materials, those made from rock (cement, ceramic, and mud) and plastic had the highest CI = 25.9 % and 23.4 %, respectively. Almost 95 % of the total infested water-filled containers were made of plastic or rock. No association was found between the type of material of the containers and the density of mosquitoes. However, overall, greater densities of immature stages were found at ground than at higher levels. A weak positive correlation between water volume and density was found in some species of immature stages. Significantly higher number of C. quinquefasciatus were recorded in containers with flowers and large water volume. In contrast, A. aegypti immature stages were more frequent in containers without flowers. A weak negative association between water volume and infestations was found for A. albopictus immatures. As reflected of their opportunistic behaviour and broad ecological plasticity, Culex spp. and Aedes spp. mosquitoes were abundant pests in cemetery habitats where were able to breed in almost any kind of water-filled container regardless the type of material. However, our study showed that some ecological variables have critical impact for the development of the immature stages of some species. The health authorities and cemetery keepers can benefit from these results by focusing on the implementation of detailed plans and integrated strategies for the control and prevention of cemetery infestations by mosquitoes.(AU)

Resumen Los mosquitos (Diptera: Culicidae) son importantes vectores de diversos organismos patógenos, tales como arbovirus y protozoos. Los estadios inmaduros de los mosquitos pueden encontrarse en un amplio abanico de hábitats, tanto de origen natural como humano. Algunos lugares antrópicos, como los cementerios, sirven como prósperos hábitats artificiales para el desarrollo del ciclo de vida de los mosquitos. A pesar de constituir importantes focos para especies de interés vectorial, los cementerios urbanos son frecuentemente olvidados en los programas de vigilancia y control. Este estudio evaluó la asociación de algunas variables ecológicas (tipo de material, presencia de flores, disponibilidad de agua, y altura respecto al suelo) de los lugares de cría (recipientes) con los niveles de infestación de las fases preimarginales de los culícidos. En 2017, un cementerio urbano en Jarabacoa (República Dominicana) fue inspeccionado durante dos periodos climáticos (es decir: marzo: estación seca y agosto: estación húmeda) para: caracterizar los lugares de cría artificiales, captura de los estadios inmaduros de culícidos e identificación de los adultos emergidos a partir de las fases inmaduras. En total, 968 recipientes fueron examinados, conteniendo 7 758 inmaduros en 203 (21.0 %) recipientes con agua pertenecientes a cuatro especies, Culex quinquefasciatus (50.5 %), Aedes aegypti (47.1 %), Aedes albopictus (1.9 %) y Culex nigripalpus (0.4 %). El índice de recipiente (IR) fue del 20.9 %, y los recipientes fabricados a partir de roca (cemento, cerámica y barro) y plástico tuvieron el mayor IR = 25.9 y 23.4 %, respectivamente. Casi un 95 % de los recipientes con agua infectados estaban constituidos de materiales tipo plástico o roca. No se encontró asociación entre el tipo de material del recipiente y la densidad. En general, mayor densidad de estadios inmaduros fue observada a nivel del suelo que a alturas mayores. Se observó un incremento significativo del número de C. quinquefasciatus en recipientes con flores y grandes volúmenes de agua. Por el contrario, los estadios de A. aegypti fueron más frecuentes en recipientes sin flores. Como reflejo de su comportamiento oportunista y amplia plasticidad ecológica, los mosquitos Culex y Aedes fueron abundantes en los cementerios, siendo capaces de desarrollar su ciclo de vida acuático en cualquier tipo de recipiente, con independencia del material que lo constituya. Nuestro estudio, por tanto, mostró que algunas variables ecológicas tienen un impacto crítico sobre el desarrollo de los estadios inmaduros de algunas especies de mosquitos. Tanto las autoridades de salud pública como los cuidadores del cementerio pueden beneficiare de estos resultados centrándose en la implementación de planes detallados y estrategias integradoras para el control y prevención de mosquitos que infectan cementerios.(AU)
Descritores: Aedes/patogenicidade
Culex/patogenicidade
Microbiologia Ambiental
Cemitérios
-República Dominicana
Responsável: BR1.1 - BIREME


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Texto completo SciELO Cuba
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Id: lil-737003
Autor: Sánchez Espinosa, Kenia C; Almaguer Chávez, Michel.
Título: Aeromicología y salud humana / Aeromycology and human health
Fonte: Rev. cuba. med. trop;66(3):322-337, sep.-dic. 2014.
Idioma: es.
Resumo: Introducción: la aeromicología estudia la variación temporal y espacial del contenido fúngico de la atmósfera, así como la influencia de los factores meteorológicos sobre dichas variaciones. En países tropicales como Cuba, la elevada temperatura y la humedad relativa favorecen el crecimiento de los hongos, así como la formación y liberación de sus esporas, las cuales pueden afectar la salud humana. Objetivo: destacar el impacto de los estudios aeromicológicos para la salud humana. Métodos: se realizó una revisión de la literatura científica sobre aspectos generales de la aeromicología, las principales especies fúngicas presentes en ambientes exteriores e interiores, su impacto en la salud humana y las medidas para disminuir el riesgo de afectación a la salud por dichos hongos. Resultados: se expone información actualizada y valiosa sobre la aeromicología, útil para la prevención de enfermedades ocasionadas por hongos presentes en el aire. Además se destacan los estudios realizados en Cuba hasta la actualidad. Conclusiones: la determinación ambiental de propágulos fúngicos así como sus variaciones estacionales es un parámetro relevante a evaluar dentro de la salud preventiva(AU)

Introduction: aeromycology studies the time and space variation of the air fungal content, as well as the influence of weather factors on these variations. In tropical countries like Cuba, high temperatures and relative humidity favor fungal growth and the formation and release of its spores, which can have an impact on human health. Objective: to highlight the impact of Aeromycology in the human health. Methods: Scientific literature addressing the general aspects of aeromycology, the main indoor and outdoor fungal species, their impact on human health and the actions aimed at decreasing the risk for human health was reviewed. Results: updated and valuable information on aeromycology was presented which can be used to prevent diseases caused by airborne fungi. Additionally, this review highlighted the studies conducted in Cuba up to the present. Conclusions: the environmental determination of fungal propagules and their seasonal variations is a relevant parameter to be evaluated in preventive health care systems(AU)
Descritores: Atmosfera
Saúde/normas
Microbiologia Ambiental
Micologia/métodos
-Cuba
Microbiologia do Ar
Micologia
Limites: Humanos
Masculino
Feminino
Responsável: CU1.1 - Biblioteca Médica Nacional


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Id: biblio-1119332
Autor: Kuczynski, David.
Título: Sobre la presencia de patógenos asociados a infecciones nosocomiales en algunos ríos y arroyos bonaerenses / The presence of pathogens associated with nosocomial infections in watercourses from Buenos Aires Province, Argentine
Fonte: Inmanencia (San Martín, Prov. B. Aires);1(1):21-27, jun.-dic. 2011.
Idioma: es.
Resumo: Se informa del hallazgo en ríos y arroyos del Conurbano Bonaerense de algunas especies de Klebsiella, Enterobacter, Citrobacter, Serratia y Pseudomonas no registradas previamente en cursos hídricos de la región. Su presencia resulta no sólo de interés ecológico sino también epidemiológico y sanitario, por tratarse de patógenos asociados a diversas infecciones hospitalarias

This paper reports the presence of species belonging to Klebsiella, Enterobacter, Citrobacter, Serratia and Pseudomonas in water courses belonging to suburbs of Buenos Aires City which were not previously recorded in the area. Their occurrence have ecological, epidemiological and public health significance, for all these bacteria are human pathogens and have been associated with a lot of nosocomial infections

Informa-se o achado em rios e arroios do Conurbano Bonaerense de algumas espécies de Klebsiella, Enterobacter, Citrobacter, Serratia y Pseudomonas não registradas previamente em fluxos hídricos da região. Sua presença resulta não apenas de interesse ecológico, mas também, epidemiológico e sanitário, por tratarse de patogênicos associados a diversas infecções hospitalare (nosocomial)
Descritores: Argentina
Bacteriologia
Água
Infecção Hospitalar
Enterobacter
Microbiologia Ambiental
Klebsiella
Tipo de Publ: Relatório Técnico
Responsável: AR392.1 - Biblioteca


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Id: lil-707858
Autor: Silva, Dulcilena de Matos Castro e.
Título: Contribuição para a história natural da criptococose: analisando espécimes vegetais e ar atmosférico de parques da cidade de São Paulo / Contribution to the natural history of cryptococcosis: analyzing plant specimens and atmospheric air of parks of São Paulo city.
Fonte: São Paulo; s.n; 2013. [109] p. ilus, tab.
Idioma: pt.
Tese: Apresentada a São Paulo (Estado) Secretaria da Saúde. Coordenadoria de Controle de Doenças. Programa de Pós-graduação em Ciências para obtenção do grau de Mestre.
Resumo: O papel principal que espécimes vegetais desempenham no ciclo de vida de fungos é fornecer matéria orgânica para sua proliferação e, nesse habitat já foram descritas diversas espécies que podem causar infecção humana. Desse modo, é importante conhecer os nichos naturais de agentes com potencial patogênico, de modo, a dar subsídios para medidas de prevenção e profilaxia para diminuir o risco de exposição humana. Dentre as espécies oportunistas, destacam-se membros do gênero Cryptococcus spp. que podem causar criptococose, uma das micoses sistêmicas mais letais na atualidade. O objetivo deste trabalho foi investigar a presença de Cryptococcus em nichos ambientais de parques da cidade de São Paulo, em particular, ocos de troncos de espécimes vegetais e ar atmosférico adjacente. Além disso, foi avaliado um novo meio de cultura para isolamento desses agentes. O estudo foi realizado com 45 exemplares, englobando 25 distintas espécies vegetais, localizados em 5 parques localizados nas 5 regiões da cidade. A coleta, de material orgânico retirado de cada oco e ar adjacente ao espécime vegetal, foi realizada trimestralmente, durante o período de um ano. Dois meios de cultura foram utilizados para isolamento de colônias de Cryptococcus spp., a saber: o meio clássico de Guizzotia abssynica (ágar niger) e um novo meio, denominado Dicloram Rosa Bengala modificado (DRBCm) que mostrou melhor desempenho para isolamento desses agentes. Cento e vinte e três isolados de Cryptococcus spp. foram obtidos de ocos vegetais (111; 90,2%) e ar atmosférico (12; 9,8%). Vinte (44,5%; 20/45) exemplares pertencentes a 19 espécies vegetais foram positivos para Cryptococcus spp.. As espécies de Cryptococcus encontradas em ocos foram: C. neoformans (61,2%; 68/111), C. laurentii (30,6%; 34/111), C. albidus (2,7%; 3/111) e C. terrestris (1,8%; 2/111). Sessenta e oito isolados de C. neoformans foram obtidos de amostras de Hymenaea courbaril e a identificação molecular por PCR/RFLP indicou...
Descritores: Cryptococcus
Microbiologia Ambiental
Microbiologia do Ar
Plantas
-Brasil
Responsável: BR91.2 - Centro de Documentação
BR91.2



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