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1.
Acta Paul. Enferm. (Online) ; 35: eAPE00771, 2022. tab, graf
Article in Portuguese | LILACS, BDENF | ID: biblio-1364239

ABSTRACT

Resumo Objetivo Avaliar a qualidade microbiológica do leite humano pasteurizado proveniente de um Banco de Leite Humano do Estado de São Paulo. Métodos Estudo descritivo conduzido com 29 amostras de leite humano ordenhado pasteurizado (LHOP) obtidas entre julho de 2015 a março de 2016 por meio da avaliação dos registros da acidez titulável bem como da quantificação da microbiota heterotrófica (mesófilos, psicrófilos, termófilos), coliformes totais e termotolerantes, fungos filamentosos e leveduriformes e Staphylococcus spp. Realizou-se a avaliação dos parâmetros físico-químicos por meio do potencial hidrogeniônico-pH, teor energético-K e acidez Dornic-ºD. Análises estatísticas descritivas e bivariadas foram conduzidas. Resultados Evidenciou-se nas amostras a presença de psicrófilos (17,24%), termófilos (27,59%), mesófilos (55,17%), fungos filamentosos e leveduriformes (41,38%) e ausência de Staphylococcus spp. Detectou-se a presença de 82,76% de coliformes no teste presuntivo. Já no teste confirmativo VB constatou-se a presença de 54,16% de coliformes totais e no teste EC 33,33% de coliformes termotolerantes. Os valores de pH e de K não apresentaram oscilações, enquanto que, na expressão da acidez entre 3º a 15°D detectou-se crescimento microbiano. O microrganismo mesófilo, apresentou correlação positiva com variável da acidez Dornic (r=0.44;p=0.01). Conclusão A partir da avaliação da qualidade microbiológica das amostras de LHOP descartado e consideradas impróprias para consumo no referido BLH, especificamente com relação aos indicadores microbiológicos das condições de higiene, sugere que a inviabilidade das amostras possam estar associadas às boas práticas de manipulação do alimento.


Resumen Objetivo Evaluar la calidad microbiológica de la leche humana pasteurizada proveniente de un banco de leche humana del estado de São Paulo. Métodos Estudio descriptivo realizado con 29 muestras de leche humana ordeñada pasteurizada (LHOP) obtenidas entre julio de 2015 y marzo de 2016 por medio de la evaluación de los registros de acidez titulable, así como de la cuantificación de la microbiota heterótrofa (mesófilos, psicrófilos, termófilos), coliformes totales y termotolerantes, hongos filamentosos y levaduriformes y Staphylococcus spp. Se realizó la evaluación de los parámetros físico-químicos mediante el potencial de hidrógeno (pH), valor energético (K) y acidez Dornic-ºD. Se llevaron a cabo análisis descriptivos y bivariados. Resultados Se observó en las muestras la presencia de psicrófilos (17,24 %), termófilos (27,59 %), mesófilos (55,17 %), hongos filamentosos y levaduriformes (41,38 %) y ausencia de Staphylococcus spp. Se detectó la presencia del 82,76 % de coliformes en la prueba presuntiva. Por otro lado, en la prueba confirmativa VB se confirmó la presencia del 54,16 % de coliformes totales, y en la prueba EC se verificó el 33,33 % de coliformes termotolerantes. Los valores de pH y de K no presentaron oscilaciones, mientras que se detectó crecimiento microbiano en la expresión de la acidez entre 3 y 15°D. El microrganismo mesófilo presentó correlación positiva con variable de la acidez Dornic (r=0.44; p=0.01). Conclusión A partir de la evaluación de calidad microbiológica de las muestras de LHOP descartadas y consideradas inapropiadas para consumo en el BLH mencionado, especialmente respecto a los indicadores microbiológicos de las condiciones de higiene, se sugiere que la inviabilidad de las muestras pueda estar asociada con las buenas prácticas de manipulación del alimento.


Abstract Objective To assess the microbiological quality of pasteurized human milk from a Human Milk Bank in the State of São Paulo. Methods This is a descriptive study conducted with 29 pasteurized expressed human milk (PEHM) samples obtained between July 2015 and March 2016 by assessing titratable acidity records as well as quantifying heterotrophic microbiota (mesophiles, psychrophiles, thermophiles), total and thermotolerant coliforms, filamentous and yeast-like fungi and Staphylococcus spp. The physical-chemical parameters were assessed via hydrogen-pH potential, K-energy content and Dornic-ºD acidity. Descriptive and bivariate statistical analyzes were conducted. Results The presence of psychrophiles (17.24%), thermophiles (27.59%), mesophiles (55.17%), filamentous and yeast-like fungi (41.38%) and absence of Staphylococcus spp were evidenced in the sample. The presence of 82.76% of coliforms was detected in the presumptive test. In the confirmatory VB test, the presence of 54.16% of total coliforms was found and, in the EC test, we verified 33.33% of thermotolerant coliforms. The pH and K values did not show oscillations, whereas, in the expression of acidity between 3º and 15°D, microbial growth was detected. The mesophilic microorganism showed a positive correlation with the Dornic acidity variable (r=0.44; p=0.01). Conclusion Based on the microbiological quality assessment of the HMB samples discarded and considered unfit for consumption in the HMB, specifically regarding the microbiological indicators of hygiene conditions, it suggests that the infeasibility of the samples may be associated with good food handling practices.


Subject(s)
Chemical Phenomena , Pasteurization , Food Handling , Milk, Human/microbiology , Brazil , Epidemiology, Descriptive , Microbiological Techniques , Milk Banks
2.
Rev. ecuat. pediatr ; 22(3): 1-8, 30 de diciembre del 2021.
Article in English | LILACS | ID: biblio-1352439

ABSTRACT

Introducción: La identificación de los microorganismos patógenos es un elemento clave la toma de decisiones clínicas y de formulación de estrategias para la prevención y control de los procesos infecciosos que aquejan a la población pediátrica. El objetivo del presente estudio fue realizar un perfil epidemiológico microbiológico en un hospital pediátrico de Quito-Ecuador. Métodos: Se trata de un estudio observacional retrospectivo de informes microbiológicos de niños atendidos en el Hospital Gineco-Obstétrico Pediátrico Luz Elena Arismendi de Quito entre enero y diciembre del año 2020. Resultados: Ingresaron al estudio 102 reportes de cultivos positivos de la población pediátrica. Enterococcus faecalis 16/102 casos (15.69%), Staphylococcus aureus 16/102 casos (15.69%), Escherichia coli 14/102 casos (13.72%), Klebsiella pneumonia 13/102 casos (12.75%), Staphylococcus epidermidis 13/102 casos (12.75%) explicaron la mayor prevalencia del grupo. Los meses de mayores reportes microbiólógicos fueron Junio y Noviembre. Fueron 51 hemocultivos positivos, 14 por Enterococcus faecalis, 10 por Staphylococcus aureus 10 casos, Diversas morfmorfologías coagulasa 9 casos. A nivel de líquido cefalorraquídeo fueron 11 reportes positivos con una prevalencia de Staphylococcus epidermidis en 7 casi y Staphylococcus aures en 4 casos. A nivel de urocultivos 12 casos fueron positivos, Escherichia coli 4 casos, Klebsiella oxytoca 3 casos y Klebsiella pneumoniae 3 casos. Conclusión: El presente reporte tiene similitudes con reportes latinoamericanos en prevalencia de Staphylococcus y Escherichia coli. Se requiere continuidad en ente reporte. No existieron casos multiresistentes


Introduction: The identification of pathogenic microorganisms is a key element in making clinical decisions and formulating strategies for the prevention and control of infectious processes that affect the pediatric population. The objective of the present study was to carry out a microbiological epidemiological profile in a pediatric hospital in Quito-Ecuador. Methods: This is a retrospective observational study of microbiological reports of children treated at the Luz Elena Arismendi Pediatric Gyneco-Obstetric Hospital in Quito between January and December 2020. Results: A total of 102 reports of positive cultures from the pediatric population were included in the study. Enterococcus faecalis 16/102 cases (15.69%), Staphylococcus aureus 16/102 cases (15.69%), Escherichia coli 14/102 cases (13.72%), Klebsiella pneumonia 13/102 cases (12.75%), and Staphylococcus epidermidis 13/102 cases (12.75%) explained the higher prevalence of the group. The months with the highest microbiological reports were June and November. There were 51 positive blood cultures, 14 for Enterococcus faecalis, 10 for Staphylococcus aureus, 10 cases, and 9 cases of various coagulase morphologies. At the level of cerebrospinal fluid, there were 11 positive reports with a prevalence of Staphylococcus epidermidis in almost 7 cases and Staphylococcus aureus in 4 cases. At the level of urine cultures, 12 cases were positive: Escherichia coli, 4 cases; Klebsiella oxytoca, 3 cases; and Klebsiella pneumoniae, 3 cases. Conclusion: This report has similarities with Latin American reports in the prevalence of Staphylococcus and Escherichia coli. Continuity is required in the entire report. There were no multi-resistant cases.


Subject(s)
Humans , Child , Microbiological Techniques , Blood Culture , Epidemiology , Clinical Laboratory Techniques , Urine Specimen Collection
3.
Arch. latinoam. nutr ; 71(3): 218-227, sept. 2021. tab, graf
Article in Spanish | LILACS, LIVECS | ID: biblio-1353317

ABSTRACT

The objective of this work was to develop cookies using sorghum, germinated millet and chia flours. Four formulations (F) were used: F-sorghum (100% sorghum flour); F-Sorghum + chia (50% sorghum flour and 50% chia flour), F-millet (100% millet flour) and F-millet + chia (50% millet flour and 50% chia flour). The germinated millet flour was submitted to microbiological analysis. All cookies were evaluated in relation to chemical and sensory analyses, according to AOAC and hedonic nine-point scale, respectively. The statistical analysis was performed by the variance analysis and Tukey test at 5% probability. The F-millet formulation showed the least humidity content (4.59 ± 0.25g/100g), while chia containing cookies showed lesser concentrations of carbohydrates (F-sorghum + chia: 44.35 ± 4.34g/100g and F-millet + chia: 41.03 ± 1.40g/100g) and higher ash content (F-sorghum + chia: 3.80 ± 0.02g/100g and F-millet + chia: 3.42 ± 0.24g/100g) and of protein (F-sorghum + chia: 15.38 ± 0.44 g/100g and F-millet + chia: 18.06 ± 0.53 g/100g). The caloric value and the lipids content did not differ among formulations. The sensory analysis had 57 evaluators. The cookies produced with chia and germinated millet had higher rates for flavor, texture and general impression. In general, all tested biscuits had good sensory acceptance and nutritional quality being an alternative to increase the consumption of bioactive compounds and antioxidants(AU)


El objetivo fue desarrollar galletas utilizando harina de sorgo, mijo germinado y chía. Se utilizaron cuatro formulaciones (F): F-sorgo (100% harina de sorgo); Sorgo F + chía (50% harina de sorgo y 50% harina de chía), mijo F (100% harina de mijo) y mijo F + chía (50% harina de mijo y 50% harina de chía). La harina de mijo germinada se sometió a análisis microbiológico. Las galletas fueron sometidas a análisis químico y sensorial, según la AOAC y una escala hedónica de nueve puntos, respectivamente. El análisis estadístico se realizó mediante análisis de varianza y prueba de Tukey al 5% de probabilidad. La formulación F-mijo tuvo menor contenido de humedad (4,59 ± 0,25 g/100g), mientras que las galletas que contenían chía tuvieron concentraciones más bajas de carbohidratos (F-sorgo + chía: 44,35 ± 4,34 g/100g y F-mijo + chía: 41,03 ± 1,40 g / 100g), mayor contenido de cenizas (F-sorgo + chía: 3,80 ± 0,02 g/100g y F-mijo + chía: 3,42 ± 0,24 g/100g) y proteínas (F-sorgo + chía: 15,38 ± 0,44 g/100g y F mijo + chía: 18,06 ± 0,53 g/100g). El valor calórico y el contenido de lípidos no difirieron entre las formulaciones. El análisis sensorial contó con 57 evaluadores. Las galletas producidas con chía y mijo germinado tenían notas más altas de sabor, textura e impresión general. Las galletas testadas tuvieron buena aceptación sensorial y calidad nutricional, siendo una alternativa para incrementar el consumo de compuestos bioactivos y antioxidantes(AU)


Subject(s)
Microbiological Techniques , Sorghum , Cookies , Flour , Millets , Nutritive Value , Seeds , Lipids , Antioxidants
4.
Con-ciencia (La Paz) ; 9(1): 1-15, jun. 2021. ilus
Article in Spanish | LILACS | ID: biblio-1284373

ABSTRACT

INTRODUCCIÓN: el agua de los lagos volcánicos no es estéril, en ella se ha adaptado a través de milenios una microbiota con diversas capacidades metabólicas. La diversidad microbiana de los lagos volcánicos en Ecuador ha sido poco estudiada y aún se desconoce su abundancia y riqueza. OBJETIVO: el objetivo del presente estudio fue conocer la calidad microbiológica del agua del lago Quilotoa, situado en la Provincia de Cotopaxi-Ecuador. MATERIALES Y METODOS: se realizaron dos muestreos durante el año 2019, recolectando un total 32 muestras. La calidad microbiológica se cuantifico utilizando la técnica de filtración por membrana en agar R2A para bacterias heterótrofas, agar eosina azul de metileno para coliformes, agar manitol salado para Staphylococcus, agar cetrimide para Pseudomonas y agar Sabouraud con cloranfenicol para hongos. RESULTADOS: los resultados promedios fueron para bacterias heterótrofas de 2,00 x 102 UFC/mL; Pseudomonas 7,00x 10 UFC/mL, Staphylococcus 3,80 x 10 UFC/mL y hongos 1,40 x 10 UFC/mL. No se detectó la presencia de bacterias coliformes. CONCLUSIONES: los grupos microbianos presentes en bajo número son indicativos de una microbiota característica adaptada a las condiciones fisicoquímicas de este lago. Se concluye que se trata de un lago con una población microbiana escasa lo que indicaría una buena calidad microbiológica.


INTRODUCTION: the water of volcanic lakes is not sterile, native microbiota shows different metabolic capabilities established over millennia. The microbial diversity of volcanic lakes in Ecuador have been little studied and their abundance and richness are still unknown. OBJECTIVE: the objective of this study was to know the microbiological quality of water of Lake Quilotoa, located in the Province of Cotopaxi-Ecuador. MATERIALS AND METHODS: two samplings were carried out during 2019, collecting a total of 32 samples. Microbiological quality was quantified using the membrane filtration technique on R2A agar for heterotrophic bacteria, eosin blue methylene agar for coliforms, salty mannitol agar for Staphylococcus, cetrimide agar for Pseudomonas and Sabouraud agar with chloramphenicol for fungi. RESULTS: the average results were for heterotrophic bacteria 2.00 x 102 CFU/mL, Pseudomonas 7.00 x 10 CFU/mL, Staphylococcus 3.80 x 10 CFU/mL and fungi 1.40 x 10 CFU/mL. The presence of coliform was not detected. CONCLUSIONS: the microbial groups present in low numbers are indicative of a characteristic microbiota adapted to the physicochemical conditions of this lake. It is concluded that it is a lake with a few microbial populations, which might indicate a good microbiological quality.


Subject(s)
Lakes , Microbiological Techniques , Coliforms
5.
Arq. ciências saúde UNIPAR ; 25(2): 111-116, maio-ago. 2021.
Article in Portuguese | LILACS | ID: biblio-1252357

ABSTRACT

O ambiente hospitalar é um dos locais com maiores chances de acontecer quadros de infecções, sendo um dos motivos a utilização irrestrita dos aparelhos celulares tanto por pacientes quanto por profissionais da saúde que não se preocupam com as boas práticas de higienização. O objetivo deste estudo foi determinar a prevalência de micro­organismos em aparelhos celulares da equipe de enfermagem da Unidade de Terapia Intensiva (UTI) de um hospital na região noroeste paranaense. Participaram da pesquisa 22 colaboradores da UTI, sendo colhidos swabs umedecidos em caldo Brain Heart Infusion (BHI) dos aparelhos celulares de cada um dos participantes e, posteriormente, as amostras foram incubadas e realizadas as análises microbiológicas. Além disso, aplicou-se um questionário para se conhecer sobre o manuseio do telefone celular por parte dos colaboradores. Na análise microbiológica, observou-se crescimento em todas as amostras de pelo menos um micro­organismo (100% nos meios Ágar Sal Manitol e Ágar Sangue, e 27,3% em Ágar MacConkey). Posteriormente, realizou-se comparação com as respostas do questionário e com o resultado da amostra, sendo que apenas 13,6% dos colaboradores relataram realizar sempre higienização dos aparelhos, porém também houve crescimento de micro­organismos nos aparelhos desses colaboradores. A partir dos dados obtidos, espera-se o envolvimento da Comissão de Controle de Infecção Hospitalar (CCIH) para desenvolver ações que reduzam a prevalência e a gravidade da contaminação no ambiente hospitalar.(AU)


Hospital environments are one of the most likely places for the development of infections, with one of the reasons being the unrestricted use of cell phones by both patients and health professionals, with disregard to good hygiene practices. The purpose of this study is to determine the prevalence of microorganisms on cell phones of the nursing staff at the Intensive Care Unit (ICU) of a hospital in the northwestern region of Paraná. A total of twenty-four ICU employees participated in the research. Swabs were collected from the cell phones of each participant and were then moistened in Brain Heart Infusion (BHI) broth. Subsequently, the samples were incubated, and a microbiological analysis was carried out. In addition, a questionnaire was applied to learn out about the employee's handling of the cell phone. From the microbiological analysis, growth of at least one microorganism (100% in the Agar Salt Mannitol and Blood Agar, and 27.3% in MacConkey Agar) could be observed in all samples. Subsequently, a comparison was made with the answers to the questionnaire and with the sample result, with only 13.6% of employees reporting that they always clean the devices. However, even the devices that were reported as being cleaned presented microorganisms. With the data obtained, the Hospital Infection Control Commission (HICC) is expected to be involved in order to develop actions to reduce prevalence, incidence, and the severity of contamination in hospital environments.(AU)


Subject(s)
Humans , Cross Infection/epidemiology , Microbiological Techniques/instrumentation , Cell Phone , Epidemiology, Descriptive , Prevalence , Intensive Care Units , Nursing, Team
6.
Acta Paul. Enferm. (Online) ; 34: eAPE02712, 2021. tab, graf
Article in Portuguese | LILACS, BDENF | ID: biblio-1248518

ABSTRACT

Resumo Objetivo: Avaliar a ação antimicrobiano do gás ozônio (O3) em superfícies e ar ambiente climatizado artificialmente. Métodos: Estudo experimental/laboratorial e transversal realizado em dez salas de um laboratório de pesquisa em microbiologia médica, com risco de segurança biológica classe 2. As superfícies demarcadas do chão, parede e bancada foram avaliadas, quanto à presença ou ausência de micro-organismos, a partir de coletas feitas com swab umedecido em água destilada estéril, antes e após a exposição do gás O3 gerado por dois equipamentos distintos. Após este procedimento, o swab foi inoculado na superfície do meio de cultura Brain Heart Infusion Agar DIFCO® (BHI), seguindo-se a incubação a 35ºC por 24 horas. Para a análise microbiológica do ar, uma placa com BHI foi exposta aberta por uma hora, antes e após o tratamento do gás O3, sendo incubadas segundo os mesmos critérios. Resultados: A atividade antimicrobiana do gás O3 gerado por ambos os equipamentos foi constatada para todas as áreas investigadas, com registros de redução do número de Unidades Formadoras de Colônias. O potencial de inibição antimicrobiana dos aparelhos se manteve próximo para os critérios de análise adotados, com destaque para as áreas de chão e bancada. Considerando-se todas as salas e percentuais de inibição microbiana, frente aos dois equipamentos, os resultados foram: chão (100%), bancada (90%), parede (50%) e ar, 70%. Conclusão: Os equipamentos geradores de gás O3 apresentaram potencial antimicrobiano para medida de controle de microrganismos presentes em superfícies e ar ambiente climatizado artificialmente, sendo um sanitizante factível para utilização.


Resumen Objetivo: Evaluar la acción antimicrobiana del gas ozono (O3) en superficies y en el aire interior climatizado artificialmente. Métodos: Estudio experimental/de laboratorio y transversal realizado en diez salas de un laboratorio de investigación en microbiología médica, con riesgo de seguridad biológica clase 2. Se evaluaron las superficies delimitadas en el piso, pared y mesa en cuanto a la presencia o ausencia de microorganismos, a partir de muestras recolectadas con hisopo humedecido en agua destilada estéril, antes y después de la exposición del gas O3 generado por dos máquinas distintas. Luego de este procedimiento, el hisopo fue inoculado en la superficie del medio de cultivo Brain Heart Infusion Agar DIFCO® (BHI), y después incubado a 35 °C por 24 horas. Para el análisis microbiológico del aire, se expuso una placa con BHI abierta durante una hora, antes y después del tratamiento del gas O3, y luego se incubó con los mismos criterios. Resultados: Se constató la actividad antimicrobiana del gas O3 generado por ambas máquinas en todas las áreas investigadas, y se registró una reducción del número de unidades formadoras de colonias. El potencial de inhibición antimicrobiana de los dispositivos se mantuvo próximo a los criterios de análisis adoptados, con énfasis en el área del piso y mesa. Considerando todas las salas y porcentajes de inhibición microbiana, con las dos máquinas, los resultados fueron: piso (100 %), mesa (90 %), pared (50 %) y aire (70 %). Conclusión: Las máquinas generadoras de gas O3 presentaron potencial antimicrobiano como medida de control de microorganismos presentes en superficies y aire interior climatizado artificialmente, lo que lo convierte en un desinfectante factible para ser usado.


Abstract Objective: Assess the antimicrobial action of ozone gas (O3) on surfaces and artificially cooled ambient air. Methods: Cross-sectional experimental/laboratory study carried out in ten rooms of a medical microbiology research lab, with class 2 biosafety risk. The demarcated surfaces on the floor, wall and counter were assessed in relation to the presence or absence of microorganisms, based on collections done with swabs dampened in sterile distilled water, before and after exposure to ozone gas produced by two different generators. After this procedure, each swab was inoculated on the surface of a Brain Heart Infusion Agar DIFCO® (BHI) culture, followed by incubation at 35ºC for 24 hours. For the microbiological analysis of the air, a petri dish with BHI was openly exposed for one hour, before and after treatment with O3 gas, and were incubated according to the same criteria. Results: The antimicrobial activity of the O3 gas produced by both generators was checked in all the areas investigated, with records indicating a decrease in the number of colony-forming units. The antimicrobial inhibition potential of the generators was close to the analysis criteria adopted, particularly for the floor and counter areas. Based on all the rooms and microbial inhibition percentages, in relation to the two generators, the results were: floor (100%), counter (90%), wall (50%) and air (70%). Conclusion: The O3 generators had antimicrobial potential as a procedure for controlling microorganisms present on surfaces and in artificially cooled ambient air, constituting a feasible sanitizer.


Subject(s)
Ozone , Ozonation , Disinfection/methods , Microbiological Techniques , Anti-Infective Agents , Cross-Sectional Studies , Containment of Biohazards
7.
Rev. méd. Minas Gerais ; 31: 31105, 2021.
Article in Portuguese | LILACS | ID: biblio-1291252

ABSTRACT

Introdução: A cesárea é realizada em condições maternas e/ou fetais que impeçam o nascimento via vaginal. Devido ao risco de complicações infecciosas, o procedimento é precedido de antibioticoprofilaxia, o que pode provocar a seleção de cepas multirresistentes e alterar a flora nativa do indivíduo. O colostro é um fator determinante para a colonização do trato digestivo por ser fonte probiótica, além de apresentar papel importante na modulação do sistema imunológico e desenvolvimento do neonato. Objetivo: Este estudo visa avaliar possíveis interferências da antibioticoprofilaxia realizada previamente à cesárea na flora materna. Métodos: Selecionou-se 140 lactantes após aplicação dos critérios de exclusão, divididas em grupos estudo (realizaram parto cesáreo com antibioticoprofilaxia) e controle (realizaram parto vaginal sem antibioticoprofilaxia) para coleta das amostras ­ colostro e esfregaço areolar ­ com intuito de realizar a análise microbiológica das mesmas no Laboratório de Microbiologia da Faculdade de Medicina de Barbacena. Resultados: 94 lactantes pertencem ao grupo estudo e 46 ao controle. O microrganismo mais prevalente em todas as amostras foi a Candida sp. Ao se discriminar os grupos, a mesma também apresentou maior prevalência, seguida de Enterococcus sp. Em relação à detecção de Staphylococcus aureus pelo esfregaço mamilar, ele foi encontrado em 24 amostras do grupo controle e em 34 do grupo estudo. Na análise comparativa da prevalência de microrganismos entre os grupos, não se observou diferença estatisticamente relevante. Conclusão: A antibioticoprofilaxia peri-operatória mostrou-se segura em não alterar a composição da flora materna. Entretanto, mais estudos sobre o tema devem ser realizados.


Introduction: The C-section is performed under maternal and / or fetal conditions that prevent vaginal birth. Because of the infectious complications, the procedure is preceded by antibiotic prophylaxis, which can cause the selection of multidrug-resistant strains and shift the individual's native flora. Colostrum is a determining factor for colonization of the digestive tract being a probiotic source, along with playing an important role in the modulation of the immune system and development of the newborn. Objective: This study aims to assess possible interferences of antibiotic prophylaxis performed prior to cesarean section on maternal flora. Methods: 140 lactating women were selected after applying the exclusion criteria, divided into study groups (94 lactating women who underwent cesarean delivery with antibiotic prophylaxis) and control groups (46 lactating women who underwent vaginal delivery without antibiotic prophylaxis) for sample collection - colostrum and areolar swab - therefore perform the microbiological analysis at the Laboratório de Microbiologia da Faculdade de Medicina de Barbacena. Results: The most prevalent microorganism in all samples was Candida sp. Discriminating the groups, it also had the highest prevalence, followed by Enterococcus sp. Regarding the detection of Staphylococcus aureus by the areolar swab, it was found in 24 samples from the control group and 34 from the study group. In the comparative analysis of prevalence of microorganisms, between the groups, there was no statistically significant difference. Conclusion: Perioperative antibiotic prophylaxis proved to be safe not changing the composition of the maternal flora. However, further studies on the subject should be carried out.


Subject(s)
Humans , Pregnancy , Microbiological Techniques , Colostrum , Infant , Staphylococcus aureus , Candida , Cesarean Section , Flora , Antibiotic Prophylaxis , Parturition , Postpartum Period , Enterobacteriaceae , Gastrointestinal Microbiome
8.
Rev. bras. anal. clin ; 52(4): 383-388, 20201230. graf, tab
Article in Portuguese | LILACS | ID: biblio-1248344

ABSTRACT

Objetivo: A água é de extrema importância para a saúde humana e essencial para a sobrevivência dos seres vivos. Águas subterrâneas de poços artesianos são menos contaminadas por não estarem expostas aos poluentes. Este estudo efetuou a análise microbiológica de águas de poços artesianos para o consumo humano. Métodos: As análises foram realizadas no Laboratório de Análises Microbiológicas, Departamento de Microbiologia e Parasitologia, Centro de Ciências da Saúde da Universidade Federal de Santa Maria. Através da técnica dos tubos múltiplos e do número mais provável por mililitro de amostra se obteve a contagem de coliformes totais e coliformes termotolerantes. A contagem de bactérias heterotróficas foi realizada em placas de Petri com meio Ágar Padrão Contagem. E a pesquisa e confirmação de Escherichia coli por Ágar Eosina Azul de Metileno e testes bioquímicos, respectivamente. Resultados: Verificou-se que 68% das amostras estavam próprias para consumo humano, em 21% foi emitido um alerta e 11% estavam impróprias. Foi confirmada E. coli em 96% das amostras impróprias. Além disso, Pseudomonas aeruginosa foi encontrada em oito das amostras analisadas. Em relação ao tratamento com cloro, 85% das amostras cloradas estavam próprias. Dividiu-se o estudo em quatro períodos para efetuar um comparativo da potabilidade, o último período do estudo demonstrou um maior nível de potabilidade quando comparado ao primeiro. Conclusão: Estes dados são de grande relevância para a população e a conscientizam sobre um controle microbiológico frequente a fim de obter níveis menores ou isentos de bactérias, evitando contaminações que podem ser nocivas à saúde humana.


Objective: Water is very important for human health and essential to survival of living beings. Groundwater from artesian wells is the least contaminated because it is not exposed to pollutants. This study performed the microbiological analysis of artesian well water to human consumption. Methods: These analyses were performed at the Microbiological Analysis Laboratory, Department of Microbiology and Parasitology, Health Sciences Center of the Federal University of Santa Maria. Using the multiple tube technique and the Most Probable Number per milliliter of the sample, the Total Coliform and Thermotolerant Coliform counts were obtained. Heterotrophic Bacteria counts were performed in Plate Count Agar Petri dishes. And the research and confirmation of Escherichia coli by Methylene Blue Eosin Agar and biochemical tests, respectively. Results: Checked that 68% of the samples were found to be safe to human consumption, 21% were alerted and 11% were inappropriate. E. coli was confirmed in 96% of improper samples. In addition, Pseudomonas aeruginosa was found in eight of the samples analyzed. Regarding chlorine treatment, 85% of chlorinated samples were safe to human consumption. The study was divided into four periods to make a potability comparison, the last period of the study showed a higher level of potability when compared to the first one. Conclusion: These data are of great relevance to the population and make them aware of frequent microbiological control in order to obtain lower or bacteria-free levels. This avoids contamination that can be harmful to human health.


Subject(s)
Water Supply , Microbiological Techniques , Water Wells
9.
Rev. chil. nutr ; 47(4): 561-567, ago. 2020. tab
Article in English | LILACS | ID: biblio-1138590

ABSTRACT

ABSTRACT This study aimed to evaluate the microbiological, physicochemical and fatty acid profile of the of "Tambica" (Oligosarcus robustus) raw fish meat and develop and characterize a fish burger. The fish burger was subjected to a sensory analysis. The raw fish meat showed a high content of moisture (82.3%) and minerals (3.1%), a low content of fat (1.5%) and a considerable protein content (13.1%). The raw fish showed a high count of positive coagulase Staphylococcus. Tambica lipid fraction was composed of 41.9% unsaturated and 58.2% saturated fatty acids. Palmitic acid and oleic acid were the major fatty acids in the raw meat fish. The fish burger was well accepted by sensory analysis.


RESUMEN Este estudio tuvo como objetivo evaluar el perfil microbiológico, fisicoquímico y de ácidos grasos de la carne de pescado cruda "Tambica" (Oligosarcus robustus); y desarrollar y caracterizar una hamburguesa de pescado. La hamburguesa de pescado fue sometida a análisis sensorial. La carne de pescado cruda mostró un alto contenido de humedad (82,3%) y minerales (3,1%), bajo contenido de grasa (1,5%) y un contenido de proteína considerable (13,1%). El pescado crudo mostró un recuento alto de Staphylococcus coagulasa positivo. La fracción lipídica de Tambica estaba compuesta por un 41,9% de ácidos grasos insaturados y 58,2% de ácidos grasos saturados. El ácido palmítico y el ácido oleico fueron los principales ácidos grasos en el pescado de carne cruda. La hamburguesa de pescado fue bien aceptada por el análisis sensorial.


Subject(s)
Animals , Fatty Acids , Meat Proteins , Meat , Staphylococcus , Microbiological Techniques , Fish Products
10.
Infectio ; 24(2): 98-102, abr.-jun. 2020. tab, graf
Article in Spanish | LILACS, COLNAL | ID: biblio-1114848

ABSTRACT

Resumen Introducción: La artritis séptica (AS) se define como la infección del espacio articular que afecta cualquier articulación, es más frecuente en niños menores de 5 años y su principal causa es la diseminación hematógena. El diagnóstico etiológico es difícil en niños, logrando aislamiento en menos de la mitad de los casos. Se evaluó el rendimiento diagnóstico de la botella de hemocultivo (BHC) como medio alternativo para la siembra del líquido sinovial comparado con los medios convencionales (MC). Metodología: Estudio de cohorte prospectivo realizado en centro de tercer nivel de 2011-2016, niños de 0 a 12 años con diagnóstico clínico de artritis séptica y disponibilidad de las dos muestras tomadas en cirugía. Resultados: Ingresaron 60 pacientes, masculinos 56%, mediana de edad 48 meses y tiempo de síntomas 58 horas (48-192); 33,3% con antecedente de trauma; 30% recibieron antibióticos previos. Articulaciones afectadas: cadera 44%, rodilla 28% y tobillo 18%. En 39 pacientes (65%) se tomaron hemocultivos; de estos 19 (49%) fueron positivos, todos para S. aureus. Se obtuvo confirmación en líquido sinovial por cualquier método en 27 pacientes (45%), positivos en ambos 21,6%, en MC 13,3% y en BHC 10%, los microorganismos más frecuentes SAMS 21,6%, SAMR 8,3%, S. pyogenes 3,3%, SEMR 3,3%, S. pneumoniae 1,6%, N. meningitidis 1,6%, no se aisló K. kingae. El tratamiento antibiótico más utilizado fueron los betalactamicos, mediana de estancia 18(12-25,5) días, mortalidad del 3,3%. Conclusión: Las BHC son un complemento al medio sólido convencional y aumentaron la confirmación etiológica de artritis séptica del 35% al 45%.


Abstract Introduction: Septic arthritis (SA) is defined as the infection of any joint space; it is more common in children under 5 years and its main cause is hematogenous dissemination. The etiological diagnosis is difficult in children, achieving isolation in less than half of the cases. The diagnostic performance of the blood culture bottle (BCB) was evaluated as an alternative medium for seeding synovial fluid compared to conventional media (CM). Methods: A prospective cohort survey was conducted in a third-level center from 2011-2016, in children aged 0 to 12 years with a clinical diagnosis of septic arthritis and availability of the two samples taken in surgery. Results: 60 patients were admitted, being 56% male, with a median age of 48 months and symptom time of 58 hours (48-192); 33.3% had a history of trauma; 30% received previous antibiotics. Affected joints: hip (44%), knee (28%), and ankle (18%). Blood cultures were taken in 39 patients (65%); of these, 19 (49%) were positive, all for S. aureus. Confirmation in synovial fluid was obtained by any method in 27 subjects (45%), positive in both: 21.6%, 13.3% in CM, and 10% in BCB. The most frequent microorganisms were: MSSA (21.6%), MRSA (8.3%), S. pyogenes (3.3%), MRSE (3.3%), S. pneumoniae (1.6%), N. meningitidis (1.6%). K. kingae was not isolated. The most commonly used antibiotic treatment was beta-lactams. The median of stay was 18 days (12-25.5), with a mortality of 3.3%. Conclusion: BCB are a complement to the conventional solid medium and increased the etiological confirmation of septic arthritis from 35 to 45%.


Subject(s)
Humans , Male , Female , Infant, Newborn , Infant , Child, Preschool , Child , Arthritis, Infectious , Pediatrics , Child , Microbiological Techniques , Blood Culture
11.
Rev. Eugenio Espejo ; 14(1): 53-64, 20200615.
Article in Spanish | LILACS | ID: biblio-1117189

ABSTRACT

El presente estudio fue de tipo observacional comparativo; para lo cual se analizaron 40 cepillos dentales de la marca OralDent, los que fueron usados durante un mes por los integrantes de la Cooperativa de taxis "Simón Bolívar" de la ciudad de Riobamba, Ecuador; con el propósito de comparar la eficacia del ácido acético al 5% y la clorhexidina al 0,12% como desinfectantes. El análisis microbiológico arrojó la presencia de microorganismos en los cepillos dentales usados por los individuos que voluntariamente los cedieron para el estudio, tales como: C. albicans en mayor proporción, seguida de S. viridans, S. epidermidis y S. mutans, A. tubingensis, K. pneumoniae, E. coli, E. faecalis, P. vulgaris. En las muestras con concentraciones de microorganismos de 100.000 UFC/mL, una vez generado el proceso de desinfección con clorhexidina al 0,12% existió una disminución a valores menores de 20.000 UFC/mL o su eliminación completa. El ácido acético al 5% logró una asepsia en el 100% de los cepillos dentales sin importar la edad o el género del individuo que lo utilizó.


The present study was of a comparative observational type. 40 OralDent toothbrushes were analyzed for this reserach, which were used for a month by the members of the "Simón Bolívar" Taxi Cab Company in the city of Riobamba, Ecuador. It aimed to compare the efficacy of 5% acetic acid and 0.12% chlorhexidine as disinfectants. The microbiological analysis showed the presence of microorganisms in the toothbrushes used by the individuals who voluntarily gave them up for the study, for exmaple: C. albicans in a greater proportion, followed by S. viridans, S. epidermidis and S. mutans, A. tubingensis, K. pneumoniae, E. coli, E. faecalis, P. vulgaris. Once the disinfection process with 0.12% chlorhexidine was generated in the samples with microorganism concentrations of 100,000 CFU / mL, there was a decrease to values less than 20,000 CFU / mL or its complete elimination. 5% acetic acid achieved asepsis in 100% of toothbrushes regardless of the age or gender of the individual who used it.


Subject(s)
Humans , Male , Female , Chlorhexidine , Disinfection , Acetic Acid , Asepsis , Microbiological Techniques , Disinfectants
12.
Univ. salud ; 22(1): 77-83, ene.-abr. 2020.
Article in Spanish | LILACS, COLNAL | ID: biblio-1094582

ABSTRACT

Introducción: El uso del teléfono celular se ha vuelto común en áreas del hospital, incluida la sala de operaciones, aumentando el riesgo de contaminación cruzada y las altas tasas de infecciones del sitio quirúrgico. Objetivo: Determinar la contaminación microbiana en dispositivos móviles del personal quirúrgico de una Institución de Salud de Pereira, Colombia en el primer semestre del año 2018. Materiales y métodos: Estudio descriptivo observacional, transversal. Se tomaron 10 dispositivos móviles del personal del área de quirófano al azar y a cada uno se le realizó frotis con hisopo estéril al estuche o cobertura del celular. Las muestras se transportaron en tubos de ensayo con agua peptonada al 1% hasta el momento de la siembra; las muestras se analizaron por técnica microbiológica recuento en placa profunda. Resultados: En las muestras se encontró un promedio de 93 UFC (Unidades Formadoras de Colonias) de mesófilos aerobios, 13 UFC de coliformes totales, 22 UFC de mohos y levaduras. Conclusión: El análisis microbiológico permitió detectar la presencia de elevadas cantidades de unidades formadoras de colonias que podrían contribuir de manera significativa a incrementar las tasas en infecciones asociadas a la atención en salud.


Introduction: Cell phone use in hospital areas such as surgery rooms has become a common practice, which has increased both the risk of cross-contamination and the rates of surgical site infections. Objective: To determine microbial contamination of mobile devices belonging to surgical staff of a Health Care Institution in Pereira, Colombia during the first semester of 2018. Materials and methods: An observational, cross-sectional, descriptive study was conducted with a sample of ten mobile devices randomly chosen from health personnel working in the surgical room. Surface samples were collected from cell phone cases and bags using sterile swabs that were were kept in a 1% peptone salt solution until a deep plate count assay was performed on them. Results: The plate count confirmed the presence of mesophilic aerobes (93 CFUs), total coliforms (13 CFUs) as well as yeasts and molds (22 CFUs). Conclusion: The microbiological analysis showed elevated numbers of colony-forming units that could significantly increase the rates of infections associated with health care settings.


Subject(s)
Humans , Cross Infection , Cell Phone , Surgical Wound Infection , Disinfection , Microbiological Techniques
13.
Arch. argent. pediatr ; 118(2): e191-e193, abr. 2020. ilus
Article in Spanish | LILACS, BINACIS | ID: biblio-1100475

ABSTRACT

Yersinia enterocolitica es un bacilo Gram-negativo causante de infección intestinal en los humanos. Se presenta con diferentes cuadros clínicos que obligan a descartar una variedad de etiologías, lo cual, a veces, hace difícil alcanzar un diagnóstico correcto en forma oportuna.Se expone el caso de un varón adolescente con dolor en la fosa ilíaca derecha a partir de una ileítis terminal con hallazgos similares a la enfermedad de Crohn, que se diagnosticó, finalmente, como infección por Yersinia enterocolitica. Se destaca la utilidad de los diferentes métodos auxiliares empleados.


Yersinia enterocolitica is a gram-negative rod causing intestinal infection in humans. It shows different clinical pictures with many different etiologies to be ruled-out, which sometimes makes it difficult to reach a timely and correct diagnosis. We report the case of an adolescent boy presenting with right lower quadrant pain from terminal ileitis with endoscopic findings akin to Crohn ́s disease finally diagnosed as Yersinia enterocolitica, highlighting the usefulness of the different ancillary methods employed.


Subject(s)
Humans , Male , Child , Yersinia enterocolitica , Crohn Disease/diagnosis , Ileitis/complications , Microbiological Techniques , Molecular Diagnostic Techniques , Diagnosis, Differential , Feces/microbiology
14.
Rev. epidemiol. controle infecç ; 10(1): 15-20, jan.-mar. 2020. ilus
Article in Portuguese | LILACS | ID: biblio-1177737

ABSTRACT

Justificativa e Objetivos: A praticidade de fazer refeições fora de casa representa um risco à saúde do consumidor, especialmente pela exposição a possíveis agentes causadores de doenças presentes nos alimentos. Isto ocorre devido às condições higiênico-sanitárias, geralmente precárias, o que aumenta a probabilidade de contaminação microbiana desses alimentos. Assim, o presente estudo possui como objetivo verificar a presença de coliformes totais e termotolerantes e de Staphylococcus spp. em amostras das mãos de manipuladores de lanches de rua. Métodos: A investigação de microrganismos foi realizada de duas formas: a) coleta dos microrganismos presentes nas mãos de vendedores ambulantes, o que está diretamente associado a doenças transmitidas por alimentos, e b) aplicação de um questionário com a finalidade de verificar informações sobre as condições de higiene dos manipuladores. Resultados: Através das análises microbiológicas, foram identificadas a presença de coliformes totais e de Escherichia coli, bem como a presença de Staphylococcus coagulase positiva (S. aureus) e coagulase negativa. Conclusão: As condições de higiene dos manipuladores se mostraram insatisfatórias conforme os resultados apresentados na análise e no questionário aplicado para esses indivíduos.(AU)


Background and Objectives: The convenience of eating meals outside home poses a risk to consumers' health, especially due to the exposure to possible disease-causing agents present in food. This is a result of generally poor hygienic-sanitary conditions, which increases the likelihood of microbial contamination of these foods. Thus, the aim of this study is to investigate the presence of total and thermotolerant coliforms and Staphylococcus spp. in samples taken from the hands of street food handlers. Methods: Two approaches were used in this investigation: a) the collection of microorganisms present in the hands of street vendors, which is directly associated with foodborne diseases, and b) the conduction of a questionnaire to gather information on the hygiene conditions of the handlers. Results: The microbiological analyses identified the presence of total coliforms and Escherichia coli, as well as Staphylococcus coagulase-positive (S. aureus) and coagulase-negative. Conclusion: The hygiene conditions of the handlers were considered unsatisfactory according to the results presented in the analysis and the questionnaire applied to the subjects.(AU)


Justificación y Objetivos: La practicidad de comer fuera de casa presenta un riesgo para la salud del consumidor, especialmente por la exposición a posibles agentes causantes de enfermedades alimentarias. Esto se debe a las condiciones higiénico-sanitarias, generalmente precarias, que aumenta la probabilidad de contaminación microbiana de esos alimentos. El presente estudio tuvo como objetivo verificar la presencia de coliformes totales y termotolerantes de Staphylococcus spp. en muestras de las manos de manipuladores de alimentos en la calle. Métodos: Se realizó el análisis de microorganismos de dos maneras: a) se recolectó la presencia del microorganismo presente en las manos de los vendedores ambulantes, lo que está directamente asociado a las enfermedades transmitidas por alimentos; y b) se aplicó un cuestionario con el fin de recoger informaciones sobre las enfermedades y condiciones de higiene de los manipuladores. Resultados: Se identificó la presencia de coliformes totales y de Escherichia coli, así como la presencia de Staphylococcus coagulase positivo (S. aureus) y coagulase negativo. Conclusión: Las condiciones de higiene de los manipuladores se mostraron insatisfactorias conforme los resultados presentados en el análisis y en el cuestionario aplicado a esos individuos.(AU)


Subject(s)
Humans , Hygiene , Microbiological Techniques , Street Food , Foodborne Diseases , Staphylococcus
15.
Rev. bras. oftalmol ; 79(1): 46-52, Jan.-Feb. 2020. tab
Article in English | LILACS | ID: biblio-1092661

ABSTRACT

Abstract Purpose: To compare clinical-epidemiological profile and treatment outcome between culture negative and culture positive keratitis patients. Methods: Patients with suspected infectious keratitis seen at two ophthalmic hospitals in Curitiba, Brazil, between June 2014 and April 2016, were prospectively studied. Ophthalmological exam with corneal scraping and microbiological tests were performed. Data regarding follow up, surgical interventions and treatment outcome were collected after 12 weeks of the first visit trough medical chart review. From the results of the culture, two groups were formed: culture negative keratitis (CNK) and culture positive keratitis (CPK). Results: According to inclusion criteria 21 patients were classified as culture negative keratitis and 20 patients as culture positive keratitis. The number of patients on antibiotic drops at the first visit was greater in CNK group (90.5% versus 60%; p=0.032). Surgical procedures were necessary in 3 patients (15%) in CNK group and in 7 patients (36,8%) in CPK group (p=0.155). Treatment success was achieved by 85% (17/20) of the patients in CNK group and by 61% (11/18) of the patients in CPK group (p=0.144). There was no significant difference between groups regarding age, gender, place of residence, presence of comorbidities, risk factors for infectious keratitis, duration of symptoms and characteristics of corneal ulcer. Conclusions: Previous treatment with antibiotics correlates with negative culture results. There was no significant difference in treatment outcome between culture negative and culture positive keratitis patients.


Resumo Objetivo: Comparar os perfis clinico-epidemiológicos e os desfechos entre pacientes com ceratite com cultura positiva e pacientes com ceratite com cultura negativa. Métodos: Pacientes com ceratite infecciosa, atendidos em dois hospitais oftalmológicos em Curitiba, Brasil, entre junho de 2014 e abril de 2016, foram estudados prospectivamente. Exame oftalmológico, raspado de córnea e exames microbiológicos foram realizados no primeiro atendimento. Os dados quanto a seguimento e desfecho foram coletados após 12 semanas do primeiro atendimento através de revisão de prontuário. A partir dos resultados das culturas, dois grupos foram formados: ceratite com cultura negativa e ceratite com cultura positiva. Resultados: Vinte e um pacientes foram classificados como ceratite com cultura negativa e 20 como ceratite com cultura positiva. O número de pacientes em uso de colírio antibiótico no primeiro atendimento foi maior no grupo de cultura negativa (90,5% versus 60%; p=0,032). Sete pacientes (37%) no grupo cultura positiva precisaram de procedimentos cirúrgicos no manejo da ceratite, versus 3 pacientes (15%) do grupo cultura negativa (p=0,155). Oitenta e cinco por cento (17/20) dos pacientes do grupo cultura negativa alcançaram sucesso no tratamento, contra 61% (11/18) dos pacientes no grupo cultura positiva (p=0,144). Não houve diferença entre os grupos quanto a idade, gênero, local de procedência, presença de comorbidades, fatores de risco, duração dos sintomas e características da úlcera de córnea. Conclusão: Tratamento prévio com colírio de antibiótico correlaciona-se com resultados negativos de cultura. Não houve diferença no desfecho após tratamento entre os pacientes com cultura negativa e cultura positiva.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Aged , Aged, 80 and over , Keratitis/diagnosis , Keratitis/microbiology , Keratitis/parasitology , Keratitis/drug therapy , Keratitis/epidemiology , Bacteria/isolation & purification , Acanthamoeba/isolation & purification , Acanthamoeba Keratitis/diagnosis , Acanthamoeba Keratitis/parasitology , Acanthamoeba Keratitis/drug therapy , Acanthamoeba Keratitis/epidemiology , Eye Infections, Bacterial/diagnosis , Eye Infections, Bacterial/microbiology , Eye Infections, Bacterial/drug therapy , Eye Infections, Bacterial/epidemiology , Eye Infections, Fungal/diagnosis , Eye Infections, Fungal/microbiology , Eye Infections, Fungal/drug therapy , Eye Infections, Fungal/epidemiology , Prospective Studies , Microbiological Techniques/methods , Treatment Outcome , Fungi/isolation & purification , Anti-Bacterial Agents/therapeutic use , Antifungal Agents/therapeutic use , Antiprotozoal Agents/therapeutic use
16.
Article in English | LILACS, BBO | ID: biblio-1135535

ABSTRACT

Abstract Objective: To evaluate in vitro the antimicrobial effect of Listerine-green tea mouthwash on Streptococcus mutans (SM) in comparison with 0.12% Chlorhexidine (CHX) and Listerine-Zero. Material and Methods: The sensitivity and growth inhibition of SM bacterial species were evaluated and compared between Listerine-green tea, 0.12% CHX and Listerine-Zero mouthwashes. Sixty plates containing SM colonies were prepared in three groups (n=20), and growth inhibition zones were measured using the disk diffusion agar test in mm. Data were analyzed with SPSS 21. One-way ANOVA was used to compare the efficacy of the three mouthwashes tested. Post hoc Tukey tests were used for two-by-two comparisons. Statistical significance was defined at P<0.05. Results: Analysis of data showed significant differences between the three groups (p<0.001); 0.12% CHX was the most effective mouthwash, and Listerine-Zero exhibited the least effect on the growth inhibition of SM (p<0.004). Conclusion: All three mouthwashes were significantly effective in inhibiting the growth of SM. The effect of Listerine-green tea mouthwash was higher than that of Listerine-Zero and less than that of 0.12% CHX.


Subject(s)
Streptococcus mutans , Tea , In Vitro Techniques , Microbiological Techniques/methods , Mouthwashes/analysis , Chlorhexidine , Analysis of Variance , Statistics, Nonparametric , Agar , Iran/epidemiology
17.
Rev. colomb. ortop. traumatol ; 34(1): 53-59, 2020. tab
Article in Spanish | LILACS, COLNAL | ID: biblio-1117575

ABSTRACT

Introducción Las ulceras por presión (UPP) son una condición frecuente en los pacientes con movilidad restringida, su sobreinfección implica un esfuerzo adicional en el tratamiento, ya que se asocia a complicaciones como osteomielitis crónica y sepsis. El objetivo del estudio es describir las características clínicas y sociodemográficas de los pacientes con UPP enfatizando en el perfil microbiológico de aquellos con sobreinfección. Materiales y métodos Se realizó un estudio descriptivo retrospectivo que incluyó a 76 pacientes adultos con diagnóstico de UPP sobreinfectadas sometidos a cirugía entre 2013 y 2015. Se obtuvo información demográfica, clínica y microbiológica. Se describieron los resultados según la naturaleza de la variable. Resultados De los 76 pacientes, 56 (73.7%) fueron hombres. La mediana de edad fue de 45 años. La mediana de hospitalización fue de 22.5 días, el principal motivo de inmovilidad fue la lesión medular (69,7%). Los patógenos más comunes fueron Enterococcus faecalis (46%), Escherichia coli (43.4%), Streptococcus spp (35.5%) y Proteus spp (30.2%). En el 77,6% de los pacientes se aislaron dos o más microorganismos en los cultivos. Discusión La lesión medular en la condición más asociada a ulceras por presión en nuestro medio, principalmente en hombres jóvenes. La sobreinfección generalmente es polimicrobiana, lo que nos muestra la gran importancia de los cultivos para poder realizar un tratamiento específico y efectivo. Al conocer las características clínicas y demográficas se pueden direccionar estrategias de prevención y rehabilitación que impacten de manera positiva en la calidad de vida de los pacientes y la sostenibilidad del sistema de salud. Nivel de evidencia IV


Background Pressure ulcers (PU) are a frequent condition in patients with restricted mobility. Their infection requires an additional effort in the treatment, since it is associated with complications, such as chronic osteomyelitis and sepsis. The aim of this study is to describe the clinical and sociodemographic characteristics of patients with PU, emphasising the microbiological profile of those with infection. Materials and methods A retrospective descriptive study was carried out on 76 adult patients diagnosed with infected PU who underwent surgery between 2013 and 2015. Demographic, clinical, and microbiological information was obtained. The results were described according to the nature of the variable. Results Of the 76 patients, 56 (73.7%) were men. The median age was 45 years. The median number of days hospitalised was 22.5 days, and the main cause of immobility was spinal cord injury (69.7%). The most common pathogens were Enterococcus faecalis (46%), Escherichia coli (43.4%), Streptococcus spp (35.5%), and Proteus spp (30.2%). Two or more microorganisms were isolated in the cultures in 77.6% of the patients, Discussion Spinal cord injury is the condition most associated with pressure ulcers in this study, mainly in young men. Infection is usually polymicrobial, which shows the great importance of the cultures, in order to be able to carry out a specific and effective treatment. By knowing the clinical and demographic characteristics, prevention and rehabilitation strategies can be directed at having a positive impact on the quality of life of PU patients, and the sustainability of the health care system. Evidence Level IV


Subject(s)
Humans , Ulcer , Microbiological Techniques , Infections
18.
Arq. Inst. Biol ; 87: e0032020, 2020. tab
Article in English | LILACS, VETINDEX | ID: biblio-1130088

ABSTRACT

In order to characterize the milk production chain and study the dairy herd health in the city of Codó, state of Maranhão, Brazil, a checklist was applied and tests were carried out to detect clinical and subclinical mastitis using mastitis test strip cup and the California mastitis test (CMT), from June to August 2019, in 295 dairy cows from 20 farms. Water and milk samples were collected for microbiological analysis. It was observed that herdsmen do not have adequate knowledge about good agricultural practices. As for milking, only 60% are performed in corrals with coverage, and as for the floor, 60% are made of clay and 40% are made of concrete. In 35% of the properties, the water used in milking management comes from wells and the rest from dams. Pre and postdipping practices, CMT, mastitis strip cup test and the adoption of a mastitis control program are not carried out on any of the properties Two cows tested positive for subclinical mastitis and one cow tested positive for tuberculosis. In the microbiological analysis of the milk, a high count of total coliforms and thermotolerants was obtained, with values between 23 to > 1,100 MPN/mL and < 3.0 to > 1,100 MPN/mL, respectively. The presence of coagulase positive staphylococci was also observed in 25% of the samples. The water samples also showed high contamination by total coliforms between 4.1 to > 2.419.6 MPN/mL and 40% showed the presence of Escherichia coli. These results reflect the need for more investments in technical assistance and technical training for these producers.(AU)


Este estudo teve como objetivo caracterizar a cadeia produtiva do leite e estudar a sanidade do rebanho leiteiro do município de Codó, estado do Maranhão, Brasil, através da aplicação de um checklist e da realização de exames para detecção de mastite clínica e subclínica pelos métodos da caneca do fundo escuro e California mastitis test (CMT), no período de junho a agosto de 2019, em 295 vacas leiteiras procedentes de 20 propriedades. Coletaram-se amostras de leite e água da ordenha para análises microbiológicas. Observou-se que os ordenhadores não possuem conhecimento adequado sobre as boas práticas agropecuárias. Quanto à realização da ordenha, apenas 60% realizam-na em currais com cobertura; quanto ao piso, 60% são de terra batida e 40% de concreto. A água utilizada no manejo da ordenha é proveniente de poços em 35% das propriedades e as demais de açudes. As práticas de pré e pós-dipping e os testes CMT e caneca de fundo escuro e a adoção de programa de controle da mastite não são realizados em nenhuma das propriedades. Diagnosticaram-se duas vacas com mastite subclínica e uma com tuberculose e verificou-se elevada contaminação por coliformes totais e termotolerantes nas análises microbiológicas do leite, variando entre 23 NMP/mL a >1.100 NMP/mL e < 3.0 a > 1.100 NMP/mL, respectivamente, e presença de estafilococos coagulase positivos em 25% das amostras. As amostras de água também apresentaram elevada contaminação por coliformes totais entre 4,1 NMP/mL a > 2.419,6 NMP/mL e 40% apresentaram presença de Escherichia coli. Esses resultados refletem a necessidade de mais investimentos em assistência técnica e treinamento técnico para esses produtores.(AU)


Subject(s)
Animals , Cattle , Milk/microbiology , Livestock , Food Safety , Microbiological Techniques , Coagulase , Food Quality Standards , Escherichia coli , Multiple Tube Method , Checklist , Mastitis
19.
Chinese Journal of Biotechnology ; (12): 652-665, 2020.
Article in Chinese | WPRIM | ID: wpr-827003

ABSTRACT

Co-culture systems consisted of photosynthetic microorganisms and others heterotrophic microbes have attracted great attention in recent years. These systems show many advantages when compared with single culture grown under autotrophic conditions, such as less vulnerable to pollution and more stability, thus have been applied to wastewater treatment, soil remediation, biodegradable harmful substances, and production of high value-added products. In order to explore basic theory and further applications, we summarize here recent progresses in artificial co-culture systems of using photosynthetic microorganisms, to provide a current scientific understanding for the rational design of the co-culture system based on photosynthetic microorganisms using synthetic biology.


Subject(s)
Coculture Techniques , Heterotrophic Processes , Microbiological Techniques , Microbiota , Physiology , Photosynthesis , Physiology , Synthetic Biology
20.
Rev. Inst. Adolfo Lutz ; 78: 1-5, dez. 2019. tab
Article in Portuguese | ColecionaSUS, LILACS, ColecionaSUS, SES-SP, CONASS, SESSP-ACVSES, SESSP-IALPROD, SES-SP, SESSP-IALACERVO | ID: biblio-1223930

ABSTRACT

Os embutidos cárneos estão entre os produtos mais consumidos e comercializados e podem representar uma importante fonte de contaminação por micro-organismos patogênicos ou deteriorantes decorrentes de manipulação excessiva, do aumento da superfície de contato e pela maior exposição ao oxigênio atmosférico. Este trabalho avaliou a qualidade microbiológica de mortadelas fatiadas comercializadas em Fortaleza, CE. Foram coletadas 12 amostras de mortadelas, de diferentes marcas, em supermercados de Fortaleza, CE e estas foram fatiadas e embaladas no momento da compra. As amostras foram submetidas à avaliação microbiológica quanto à presença de coliformes termotolerantes, estafilococos coagulase positiva e presença/ausência de Salmonella spp. Os resultados obtidos demonstraram que todas as amostras analisadas estavam dentro dos padrões estabelecidos pela legislação brasileira. A presença de coliformes e estafilococos coagulase positiva nos alimentos, mesmo que seja em níveis inferiores aos preconizados pela legislação vigente, pode indicar condições higienicossanitárias insatisfatórias. Neste contexto, enfatiza-se a necessidade de efetuar a adoção de boas práticas em supermercados e maior fiscalização por parte dos órgãos responsáveis, com o intuito de minimizar os possíveis problemas de saúde pública. (AU)


Meat sausages are among the mostly consumed and commercialized products, and they are the important source of contamination by pathogenic or deteriorating microorganisms due to the excessive manipulation, the increased surface contact and the considerable exposure to the atmospheric contents. The objective of this study was to evaluate the microbiological quality of sliced mortadella commercialized in Fortaleza, CE. Twelve samples of mortadella from different brands were collected in supermarkets located in Fortaleza, CE, and they were sliced and packed at the time of purchase. The samples were evaluated by the microbiological analyses for detecting the occurrence of thermotolerant coliforms, coagulase positive staphylococci and presence/absence of Salmonella spp. The results from the present study showed that all of the analyzed samples were within the standards established by the Brazilian legislation. The occurrence of coliforms and coagulase-positive staphylococci in food, even at lower levels than those recommended by current legislation, they indicate the unsatisfactory sanitary hygienic conditions. Therefore, it is emphasized the need to adopt the good practices in supermarkets and a major supervision by the responsible agencies, in order to minimize the occurrence of possible public health problems. (AU)


Subject(s)
Food Quality , Food Hygiene , Microbiological Techniques , Industrialized Foods , Food Handling
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