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au:PEREIRA, MARIA S. VIEIRA

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Biometriy of Seeds of Tabebuia aurea (Silva Manso) Benth. & Hook. f. ex. S. Moore and Seedling Growth After Different Periods of Water Immersion
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Almeida, Romário de Sousa

; Moura, Luzia Batista

; Araújo, Maria Pereira de

; Gomes, Azenate Campos

; Medeiros, José George Ferreira

; Dornelas, Carina Seixas Maia

; Lacerda, Alecksandra Vieira de

Brazilian Archives of Biology and Technology

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2023, Volume 66 elocation e23220697

Abstract: En | Text: En | PDF: En

Abstract This study aimed to determine the biometric characteristics of seeds of Tabebuia aurea and evaluate the effect of different periods of water immersion on the initial growth of seedlings. For this, the following dimensions were analyzed: length, width, and thickness of seeds with lateral wings and embryo. The moisture content, weight of a thousand seeds, and the number of seeds per kilogram were determined. The seeds were subjected to 11 treatments, as follow: control (no immersion in water; 0 hours) and periods of water immersion for 6, 12, 18, 24, 30, 36, 42, 48, 54, and 60 hours, with four replications of 25 seeds in each treatment. The aerial part and seedling root lengths were analyzed 30 days after sowing. The water content was 9.81% and the weight of a thousand seeds was 130.260 g, corresponding to about 7,677 seeds/kg. The seeds with lateral wings had mean length, width, and thickness of 5.252, 1.226, and 0.147 cm, respectively. For the embryo, these dimensions corresponded to 1.355, 0.805, and 0.103 cm. Regarding the aerial part and root length of T. aurea seedlings, immersion for 48 hours is recommended because this treatment had the best results.

https://doi.org/10.1590/1678-4324-2023220697

Evaluation of Strongyloides stercoralis infection in patients with HTLV-1
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Pereira Vieira Barreto, Nilo Manoel

; Brito Farias, Marina Morena

; de Lima Oliveira, Cíntia

; Almeida Costa Araujo, Weslei

; Rios Grassi, Maria Fernanda

; Nascimento de Souza, Joelma

; Soares Jacobina, Beatriz

; Aquino Teixeira, Márcia Cristina

; Galvão-Castro, Bernardo

; Matos Soares, Neci

Biomédica

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mar 2022, Volume 42 N. 1 Pages 31 - 40

Abstract: Es En | Text: Es En | PDF: Es | PDF: En

Resumen Introducción. Los individuos infectados por el virus linfotrópico T humano tipo 1 (HTLV-1) pueden presentar formas graves y diseminadas de infestación por Strongyloides stercoralis con poca mejoría terapéutica. Objetivo. Investigar la infestación por S. stercoralis y la seroprevalencia de IgG anti-S. stercoralis en individuos infectados por HTLV-1 atendidos en el Centro de Referencia para HTLV-1 (CHTLV), en Salvador, Bahía, Brasil. Materiales y métodos. Se hizo un estudio transversal con 178 individuos infectados por HTLV-1 atendidos en el centro especializado de HTLV entre enero de 2014 y diciembre de 2018. El diagnóstico parasitológico de S. stercoralis se hizo mediante los métodos de Hoffman, Pons y Janer, cultivo en placa de agar y Baermann-Morais. Para la detección de IgG anti-S. stercoralis, se utilizó una prueba casera de inmunoabsorción ligada a enzimas (ELISA). La infección por HTLV-1 se diagnosticó usando un ELISA comercial y se confirmó mediante Western blot. Resultados. La frecuencia de infestación por S. stercoralis fue del 3,4 % (6/178). Además, los individuos infestados por S. stercoralis provenientes de la zona rural (50,0 %; 3/6) también mostraron hiperinfestación por S. stercoralis (>3.000 larvas/gramo de heces). La frecuencia de anticuerpos IgG anti-S. stercoralis fue del 20,8 % (37/178). Conclusiones. Las personas infectadas por HTLV-1 que viven en condiciones sanitarias precarias son más propensas a desarrollar formas graves de infestación por S. stercoralis. Teniendo en cuenta la gran vulnerabilidad y el resultado desfavorable de la infección en estos individuos, se debe considerar el diagnóstico serológico de S. stercoralis para administrar el tratamiento.

Abstract Introduction: Individuals infected with the human T-lymphotropic virus type 1 (HTLV-1) may present severe and disseminated forms of Strongyloides stercoralis infection with low therapeutic response. Objective: To investigate the S. stercoralis infection and the seroprevalence of IgG anti-S. stercoralis antibodies in individuals infected with HTLV-1 attending the Reference Center for HTLV-1 (CHTLV) in Salvador, Bahia, Brazil. Materials and methods: We conducted a cross-sectional study in 178 HTLV-1-infected individuals treated at the HTLV specialized center between January, 2014, and December, 2018. The parasitological diagnosis of S. stercoralis was performed using the Hoffman, Pons and Janer, agar plate culture, and Baermann-Morais methods. The IgG anti-S. stercoralis detection was performed using an in house enzyme-linked immunosorbent assay (ELISA). The HTLV-1 infection was diagnosed using a commercial ELISA and confirmed by Western blot. Results: The frequency of S. stercoralis infection was 3.4% (6/178). Individuals infected with S. stercoralis from rural areas (50.0%; 3/6) also showed S. stercoralis hyperinfection (>3,000 larvae/ gram of feces). The frequency of circulating anti-S. stercoralis IgG antibodies was 20.8% (37/178). Conclusions: HTLV-1-infected people living in precarious sanitary conditions are more prone to develop severe forms of S. stercoralis infection. Considering the high susceptibility and unfavorable outcome of the infection in these individuals, the serological diagnosis for S. stercoralis should be considered when providing treatment.

https://doi.org/10.7705/biomedica.5888 17 downloads

β-lactam resistance in coagulase-negative Staphylococcus isolated from subclinical goat mastites
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Lucas, Amanda Pereira

; Silva, Elizabete Cristina da

; Farias, Andriele Renata Barbosa de

; Albuquerque, Maria Priscilla Borges de

; Lopes, Luciana Florêncio Vilaça

; Barbosa, Severino Benone Paes

; Batista, Ângela Maria Vieira

; Mendonça, Marcelo

; Pinheiro, Raymundo Rizaldo

; Boechat, Jorge Ubirajara Dias

; Silva, Elizabete Rodrigues da

Pesquisa Agropecuária Brasileira

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2021, Volume 56 elocation e02173

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo: O objetivo deste trabalho foi avaliar os mecanismos de resistência aos antimicrobianos β-lactâmicos em 251 amostras de Staphylococcus coagulase-negativa (CoNS) isolados de cabras com mastite subclínica, bem como determinar a sensibilidade e a especificidade dos testes de nitrocefina e difusão em disco para detectar a resistência à penicilina, em comparação à reação em cadeia da polimerase (PCR). As amostras foram avaliadas quanto à presença dos genes blaZ e mecA, à produção de β-lactamase e à susceptibilidade à penicilina. Do total de isolados, 228 (91%) apresentaram o gene blaZ e, dentre estes, 144 (63%) foram positivos para β-lactamase. A resistência à penicilina foi observada em 125 isolados e, destes, 96,8% apresentaram o gene blaZ. A sensibilidade dos testes fenotípicos para detectar a produção de β-lactamase foi baixa, mas a sua especificidade foi alta; o coeficiente Kappa mostrou leve concordância entre os testes fenotípicos e a PCR. O gene mecA foi detectado em apenas 3% dos isolados, que foram identificados como pertencentes às espécies: S. capitis subsp. ureolyticus, S. caprae, S. warneri, S. sciuri, S. simulans e S. cohnii subsp. urealyticum. Staphylococcus coagulase-negativa são importantes agentes etiológicos da mastite caprina e apresentam genes blaZ e mecA de resistência aos antimicrobianos β-lactâmicos. A sensibilidade dos testes de nitrocefina e difusão em disco para detectar a resistência à penicilina é baixa em relação à da PCR.

Abstract: The objective of this work was to evaluate resistance mechanisms to β-lactam antimicrobials in 251 strains of coagulase-negative Staphylococcus (CoNS) isolated from subclinical goat mastitis, as well as to determine the sensitivity and specificity of the nitrocefin and disk diffusion methods to detect penicillin resistance, in comparison with the polymerase chain reaction (PCR). The isolates were evaluated for the presence of the blaZ and mecA genes, β-lactamase production, and susceptibility to penicillin. Of the total isolates, 228 (91%) carried the blaZ gene and, among these, 144 (63%) were positive for β-lactamase production. Resistance to penicillin was observed in 125 of the isolates, of which 96.8% carried the blaZ gene. The sensitivity of the phenotypic methods to detect β-lactamase production was low, but their specificity was high; the Kappa coefficient showed a poor agreement between the phenotypic methods and PCR. The mecA gene was detected in only 3% of the isolates, which were identified as belonging to the species: S. capitis subsp. ureolyticus, S. caprae, S. warneri, S. sciuri, S. simulans, and S. cohnii subsp. urealyticum. Coagulase-negative Staphylococcus are important mastitis-causing pathogens in goat and harbor the blaZ and mecA genes related to resistance to β-lactam antimicrobials. The sensitivity of the nitrocefin and disk diffusion methods to detect penicillin resistance is low in relation to that of PCR.

https://doi.org/10.1590/s1678-3921.pab2021.v56.02173 270 downloads

Safety issues of raw milk: evaluation of bacteriological and physicochemical characteristics of human milk from a bank in a teaching hospital, focusing on Staphylococcus species
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Salerno, Tatiana

; Siqueira, Amanda Keller

; Pinto, José Paes de Almeida Nogueira

; Cunha, Maria de Lourdes Ribeiro de Souza da

; Silvestre, Patrícia Kelly

; Condas, Larissa Anuska Zeni

; Lara, Gustavo Henrique Batista

; Pereira, Juliano Gonçalves

; Silva, Aristeu Vieira da

; Listoni, Fernando José Paganini

; Martins, Lorrayne de Souza Araújo

; Motta, Rodrigo Garcia

; Ribeiro, Márcio Garcia

Revista do Instituto de Medicina Tropical de São Paulo

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2021, Volume 63 elocation e54

Abstract: En | Text: En | PDF: En

ABSTRACT Many infants are nurtured with milk supplied by human banks, whose bacteriological and physical-chemical profiles are a major issue. We investigated the bacteriological and physical-chemical characteristics, as well as genotypic and phenotypic and profiles of Staphylococcus species isolated from 240 samples of breast milk from a bank in a teaching hospital. Dornic acidity of milk revealed that 95.4% (229/240) had acceptable limits (< 8.0 oD). Caloric intake showed a wide variation in cream content (4%), fat (4%) and energy values (559.81 Kcal/L). Staphylococcus (105/186 or 56.5%) and Enterobacter (25/186 or 13.4%) were the most prevalent genera, although other microorganisms were identified, including Klebsiella pneumoniae and Pseudomonas aeruginosa. Amoxicillin/clavulanic acid (125/157 or 79.6%), vancomycin (115/157 or 73.2%), and cephalexin (112/157 or 71.3%) were the most effective antimicrobials. High resistance rates of isolates were found to penicillin G (141/157 or 89.8%), ampicillin (135/157 or 86%), and oxacillin (118/157 or 75.2%). Multidrug resistance to ≥ 3 antimicrobials occurred in 66.2% (123/186) of the isolates. Residues of microbial multiplication inhibitory substances were found in 85% (204/240) of samples. Among the coagulase-positive-CPS and negative-CoNS staphylococci, the mecA gene was detected in 53.3% (8/15) and 75% (30/40), respectively. Genes sea, seb and sec were detected in 20% (3/15) of CPS, while tsst-1 was detected in 13.34% (2/15). In addition, 13.3% (2/15) of S. aureus were toxin-producers. Genes sea, seb and sec were detected in 90% (36/40), 5% (2/40) and 15% (6/40) CoNS, respectively. Enterotoxin production was identified in 5% (2/40) of CoNS. The identification of multidrug-resistant bacteria, staphylococci species toxin-producers harboring methicillin-resistance genes, and residues of microbial multiplication inhibitory substances reinforce the need for a continuous vigilance of milk quality offered to infant consumption by human banks.

https://doi.org/10.1590/s1678-9946202163054 198 downloads

New epidemiological profile of schistosomiasis from an area of low prevalence in Brazil
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Santos, Israel Gomes de Amorim

; Bezerra, Letícia Pereira

; Cirilo, Tatyane Martins

; Silva, Laryssa Oliveira

; Machado, João Paulo Vieira

; Lima, Pedro Dantas

; Bispo, Martha Rejane Souza

; Gomes, Sheilla da Conceição

; Silva, Glória Isabel Lisboa da

; Alencar, Vitória Jordana Bezerra

; Damasceno, Ivisson Abreu

; Carvalho, Mikaelly Maria Vieira de

; Gomes, Dharliton Soares

; Ramos, Rosália Elen Santos

; Santos Júnior, Edmilson Genuíno

; Alves, Luiz Carlos

; Brayner, Fábio André

Revista da Sociedade Brasileira de Medicina Tropical

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2020, Volume 53 elocation e20200335

Abstract: En | Text: En | PDF: En

Abstract INTRODUCTION: Schistosomiasis, caused by infection from Schistosoma mansoni, is a disease that represents an important public health problem for Brazil, especially for states in the Northeast region. Thus, the aim of this study is to present a new epidemiological profile for the disease in a municipality with low prevalence in the state of Alagoas, Brazil. METHODS: A cross-sectional study was conducted through a coproparasitological and malacological survey. A structured questionnaire was applied to the study participants to survey possible risk factors and a spatial analysis (kernel density) was used to measure the risk of infection. RESULTS: Of the 347 participants, 106 (30.5%) were infected by Schistosoma mansoni, most of them from the urban area of the municipality (68.9%; 73/106). A 3-fold risk of infection was found for individuals living in the urban area and a risk of 2.15 times for self-declared farmers. Biomphalaria glabrata and B. straminea were the species found in the municipality, but no animals were diagnosed as infected by the parasite. Spatial analysis showed a random distribution of vectors and human cases of the disease, and the formation of two clusters of human cases in the urban area was seen. CONCLUSIONS: A new epidemiological profile for schistosomiasis from S. mansoni infection was presented in a municipality of low endemicity: a high proportion of positive individuals in the urban area; presence of snails without positive diagnosis for S. mansoni infection; random distribution of vectors and human cases; and absence of association between classical risk factors and human infection.

https://doi.org/10.1590/0037-8682-0335-2020 501 downloads

Thickness and immunohistochemistry of LASIK flaps created by different femtosecond lasers in eye-bank corneas
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Oliveira, Grazielly Martins Peixoto de

; Nosé, Walton

; Dagli, Maria Lúcia Zaidan

; Cordeiro, Vanessa Vieira

; Pereira, Nicolas Cesário

; Forseto, Adriana S.

Arquivos Brasileiros de Oftalmologia

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oct 2018, Volume 81 N. 5 Pages 393 - 400

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Objetivos: Comparar a viabilidade celular e a espessura do disco de LASIK confeccionado por três laseres de femtosegundo, em córneas humanas de banco de olhos. Métodos: Quarenta e cinco botões córneo-esclerais humanos de banco de olhos (15 córneas em cada grupo) foram examinados, após a criação de disco de LASIK com 120 mm de espessura, utilizando-se o iFS IntraLase® 150kHz (IL), o Femto LDV® Z6 (LDV), ou o Wavelight® FS200 200kHz (FS200). Tomografia de coerência óptica do seguimento anterior (OCT Visante®) foi usada para medir a espessura dos discos. A viabilidade celular foi avaliada por meio de imuno-histoquímica para apoptose dos ceratócitos, com anti-caspase 3. Resultados: O desvio padrão da espessura planejada do disco foi inferior a 10 mm em todos os grupos. Houve diferença estatisticamente significante da espessura do disco horizontalmente a +3,00 mm (p=0,0124), -0,5 mm (p=0,0082) e -1,00 mm (p=0,0425), a partir do vértice corneal, e a +0,5 mm (p=0,0240), a partir da borda do disco, em córneas tratadas por LDV e IL, e horizontalmente a -0,5 mm a partir do vértice corneal, entre LDV e FS200 (p=0,0082). A média de apoptose dos ceratócitos foi (13,09 ± 1,10), (15,59 ± 3,28) e (17,72 ± 1,49), em córneas tratadas pelo IL, FS200 e LDV, respectivamente (p<0,001). Conclusão: Todos os três laseres de femtosegundo estudados produziram disco de LASIK com predictibilidade de espessura. A média de apoptose dos ceratócitos foi baixa em todos os grupos.

ABSTRACT Purpose: The aim of this study was to compare the corneal cell viability and thickness of LASIK flaps created by 3 femtosecond lasers in eye-bank human corneas. Methods: Forty-five eye-bank human sclerocorneal buttons (15 corneas in each group) were examined after the creation of 120 mm-thick laser-assisted keratomileusis (LASIK) flaps with 150kHz iFS IntraLase™ (IL), Z6 Femto LDV™ (LDV), or 200kHz Wavelight™ FS200 (FS200). The thickness of the flaps was measured using anterior segment optical coherence tomography (AS-OCT; Visante™). Cell viability was blindly evaluated with immunohistochemistry for keratocyte apoptosis using anti-caspase 3 antibodies. Results: The standard deviation from the intended flap thickness was less than 10 mm in all the groups. There was a statistically significant difference in corneas treated with LDV and IL with regard to the flap thickness horizontally at +3.00 mm (p=0.0124), -0.5 mm (p=0.0082), and -1.00 mm (p=0.0425) from the corneal vertex and +0.5 mm from the flap edge (p=0.0240), and those treated with LDV and FS200 with regard to the flap thickness horizontally at -0.5 mm from the corneal vertex (p=0.0082). The mean keratocyte apoptosis numbers were 13.09 ± 1.10, 15.59 ± 3.28, and 17.72 ± 1.49 in corneas treated with IL, FS200, and LDV, respectively (p<0.001). Conclusion: All 3 assessed femtosecond lasers provided predictable LASIK flap thickness. The mean stromal keratocyte apoptosis number was low in all groups.

https://doi.org/10.5935/0004-2749.20180077 1165 downloads

Development and characterization of an innovative synbiotic fermented beverage based on vegetable soybean
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Battistini, Carolina

; Gullón, Beatriz

; Ichimura, Erica Sayuri

; Gomes, Ana Maria Pereira

; Ribeiro, Eliana Paula

; Kunigk, Leo

; Moreira, José Ubirajara Vieira

; Jurkiewicz, Cynthia

Brazilian Journal of Microbiology

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jun 2018, Volume 49 N. 2 Pages 303 - 309

Abstract: En | Text: En | PDF: En

Abstract Soymilk was produced from vegetable soybean and fermented by probiotics (Lactobacillus acidophilus La-5, Bifidobacterium animalis Bb-12) in co-culture with Streptococcus thermophilus. The composition of the fermented beverage and oligosaccharides content were determined. The effect of fructooligosaccharides and inulin on the fermentation time and viability of probiotic microorganisms throughout 28 days of storage at 5 °C were evaluated. The soymilk from vegetable soybeans was fermented in just 3.2 h, when pH reached 4.8. Fermentation reduced the contents of stachyose and raffinose in soymilk. Prebiotics had no effect on acidification rate and on viability of B. animalis and S. thermophilus in the fermented beverage. The viable counts of B. animalis Bb-12 remained above 108 CFU mL-1 in the fermented soymilk during 28 days of storage at 5 °C while L. acidophilus La-5 was decreased by 1 log CFU mL-1. The fermented soymilk from vegetable soybeans showed to be a good food matrix to deliver probiotic bacteria, as well as a soy product with a lower content of non-digestible oligosaccharides.

https://doi.org/10.1016/j.bjm.2017.08.006 27160 downloads

Effects of associations of tannins from Anacardium occidentale and Anadenanthera colubrina with cephalosporin against bovine Staphylococcus aureus isolates
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Pereira, Andréia Vieira

; Góis, Marcelo Biondaro

; Azevêdo, Tatiane Kelly Barbosa

; Ferraz, Fabiana Nabarro

; Vieira, Suellen Laís Vicentino

; Cavalcanti-Dantas, Vanessa Melo

; Pereira, Jozinete Vieira

; Rodrigues, Onaldo Guedes

; Pereira, Maria do Socorro Vieira

Arquivos do Instituto Biológico

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2018, Volume 85 elocation e0582016

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO: A associação de compostos naturais, isolados de plantas medicinais, com antibióticos convencionais, com mecanismos de ação semelhantes, torna-se uma estratégia alternativa e viável para superar o problema da resistência. Assim, nosso objetivo foi avaliar a atividade antimicrobiana in vitro de substâncias tânicas presentes na casca de Anacardium occidentale e Anadenanthera colubrina associadas à cefalexina, sobre amostras de Staphylococcus aureus. Avaliamos essa associação por meio da determinação da concentração mínima inibitória. Dessa forma, taninos e a cefalexina foram dissolvidos de forma seriada em água destilada em concentrações variando de 0,976 mg/mL a 500 mg/mL e 2 µg/mL a 512 µg/mL, respectivamente. Quando associados, inibiram o crescimento de S. aureus formando halos que variaram de 0,9 a 46 mm com concentração mínima inibitória de 7,8 mg/mL (taninos)/ 4 µg/mL (cefalexina). O efeito resultante da associação de substâncias, natural e sintética, com mecanismos de ação semelhantes, apresentou resultados superiores aos observados quando testados isoladamente. Podemos concluir que os taninos e a cefalexina tiveram sua ação antimicrobiana potencializada quando utilizados em associação, permitindo o uso de uma menor concentração, mantendo seu efeito antibacteriano sobre cepas de S. aureus.

ABSTRACT: The association of natural compounds isolated from medicinal plants with conventional antibiotics, both with similar mechanisms of action, have become a viable alternative strategy to overcome the problem of drug resistance. This study aimed to evaluate the in vitro antimicrobial activity of tannic substances present in the bark of Anacardium occidentale and Anadenanthera colubrina against samples of Staphylococcus aureus when in combination with cephalexin. These combinations were evaluated by determining the minimum inhibitory concentration (MIC). For this purpose, tannins and cephalexin were serially dissolved in distilled water at concentrations ranging from 0.976 mg/mL to 500 mg/mL and 2 mg/mL to 512 mg/mL, respectively. When combined, the compounds inhibited S. aureus growth forming halos ranging from 0.9 to 46 mm with an MIC of 7.8 mg/mL (tannins) and 4 µg/mL (cephalexin). The resulting effect of the combination of natural and synthetic substances with similar mechanisms of action presented better results than when tested alone. Thus, the conclusion is that both the tannins and cephalexin had their antimicrobial action enhanced when used in combination, enabling the use of lower concentrations while maintaining their antibacterial effect against strains of S. aureus.

https://doi.org/10.1590/1808-1657000582016 1217 downloads

Evaluation of the safety and satisfaction of rheumatic patients with accelerated infliximab infusion
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Carvalho, Jozélio Freire de

; Santos, Maria Natividade Pereira dos

; Oliveira, Joyce Meyre Vieira de

; Silva, Andrea Nogueira S. Lanty

; Araujo, Roberto Paulo Correia de

; Cardozo, Juliana Bahia

Advances in Rheumatology

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2018, Volume 58 elocation 22

Abstract: En | Text: En | PDF: En

Abstract Introduction: Infliximab infusion generally occurs in 2–4 h. Recent studies have suggested the possibility of accelerated infusion (1 h) of this drug. Objective: To evaluate the safety of accelerated infliximab infusion in patients with rheumatic diseases. In addition, patient satisfaction was also assessed. Methods: A prospective, single-center, non-randomized study with 34 patients with rheumatic diseases was conducted from July to November 2016. Patients with the following were excluded: history of allergic reaction to biologics, asthma or severe atopy. All patients previously received a 2- to 3-h infliximab infusion. The infusion rate was accelerated to 1 h, and premedication was excluded. The infusion was monitored in all patients. Results: A total of 34 patients were included in the study [rheumatoid arthritis (n = 16), ankylosing spondylitis (n = 15), psoriatic arthritis (n = 2) and enteropathic arthropathy (n = 1)], with an average age of 48.7 ± 18.6 years; 55.5% of the patients were female, and 29.4% were white. The duration of disease was 9.5 ± 9.2 years, and the duration of infliximab use was 38.9 ± 27.6 months, with a mean dose per infusion of 414.2 ± 158.1 (range, 200–800) mg. The mean infliximab infusion time prior to the study was 2.2 ± 0.4 h. A total of 6 (17.6%) patients received premedication. The premedication was suspended. There were no adverse effects during or after infusion. Ninety-seven percent of the patients and 100% of the health workers were satisfied with the accelerated infusion. Conclusion: Our data support the safe use of accelerated infliximab infusion in rheumatic patients, with high satisfaction among patients and health workers.

https://doi.org/10.1186/s42358-018-0016-x 298 downloads

10.

No correlation was observed between vitamin D levels and disability of patients with multiple sclerosis between latitudes 18° and 30° South
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Fragoso, Yara Dadalti

; Adoni, Tarso

; Alves-Leon, Soniza Vieira

; Apostolos-Pereira, Samira L.

; Arruda, Walter Oleschko

; Brooks, Joseph B. Bidin

; Cal, Henrique S. Rodrigues

; Damasceno, Carlos A. Albuquerque

; Gama, Paulo Diniz

; Goncalves, Marcus V. Magno

; Jesus, Carlos A. da Silva de

; Machado, Suzana C. Nunes

; Mansur, Letícia Fezer

; Matta, Andre P. da Cunha

; Mendes, Maria Fernanda

; Morales, Rogerio Rizo

; Nobrega-Jr, Adaucto Wanderley da

; Parolin, Monica K. Fiuza

; Peres, Mario Pietro

; Ribeiro, Marlise de Castro

; Ruocco, Heloisa Helena

; Scherpenhuijzen, Simone

; Siquinelli, Fabio

; Stoney, Patrick N.

; Varela, Daniel Lima

; Eboni, Audred Cristina Biondo

; Spessotto, Caroline Vieira

; Rocha, Elisa Teixeira da

; Lacerda, Pamela Emanuele

Arquivos de Neuro-Psiquiatria

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jan 2017, Volume 75 N. 1 Pages 3 - 8

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

RESUMO Objetivo: Vitamina D assumiu um papel central na pesquisa e tratamento da esclerose múltipla (EM). O objetivo deste estudo foi avaliar os níveis séricos de vitamina D de pacientes com EM e controles que residem em uma área tropical. Métodos: Foram analisados dados de 535 pacientes com EM e 350 indivíduos controle em 14 cidades próximas ao Trópico de Capricórnio. Resultados: O valor médio da determinação de 25-OH vitamina D foi 26,07 ± 10,27 ng/mL para controles e 28,03 ± 12,19 ng/mL para pacientes com EM. Não houve correlação entre os níveis de vitamina D e o grau de incapacidade ao longo da duração da doença. Conclusão: Pelo menos na região que cerca o Trópico de Capricórnio, os níveis séricos de vitamina D estão entre valores de 20 a 30 ng/mL tanto para controles quanto para pacientes com EM.

ABSTRACT Objective: Vitamin D has taken center stage in research and treatment of multiple sclerosis (MS). The objective of the present study was to assess the serum vitamin D levels of a large population of patients with MS and controls living in a restricted tropical area. Methods: Data from 535 patients with MS and 350 control subjects were obtained from 14 cities around the Tropic of Capricorn. Results: The mean serum 25-OH vitamin D level was 26.07 ± 10.27 ng/mL for the control subjects, and 28.03 ± 12.19 ng/mL for patients with MS. No correlation was observed between vitamin D levels and the disability of patients over the disease duration. Conclusion: At least for the region around the Tropic of Capricorn, serum levels of vitamin D typically are within the range of 20 to 30 ng/mL for controls and patients with MS.

https://doi.org/10.1590/0004-282x20160173 3011 downloads

11.

Phenotypic and molecular characterization of resistance to macrolides, lincosamides and type B streptogramin of clinical isolates of Staphylococcus spp. of a university hospital in Recife, Pernambuco, Brazil
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Pereira, Jussyêgles Niedja da Paz

; Rabelo, Marcelle Aquino

; Lima, Jailton Lobo da Costa

; Neto, Armando Monteiro Bezerra

; Lopes, Ana Catarina de Souza

; Maciel, Maria Amélia Vieira

Brazilian Journal of Infectious Diseases

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jun 2016, Volume 20 N. 3 Pages 276 - 281

Abstract: En | Text: En | PDF: En

Abstract Introduction There is a mechanism of macrolide resistance in Staphylococcus spp. which also affects the lincosamides and type B streptogramins characterizing the so-called MLSB resistance, whose expression can be constitutive (cMLSB) or inducible (iMLSB) and is encoded mainly by ermA and ermC genes. The cMLSB resistance is easily detected by susceptibility testing used in the laboratory routine, but iMLSB resistance is not. Therapy with clindamycin in cases of infection with isolated iMLSB resistance may fail. Objective To characterize the phenotypic (occurrence of cMLSB and iMLSB phenotypes) and molecular (occurrence of ermA and ermC genes) profiles of MLSB resistance of clinical isolates of susceptible and methicillin-resistant Staphylococcus aureus and CNS (coagulase-negative Staphylococcus) from patients of a university hospital, in Pernambuco. Methods The antimicrobial susceptibility of 103 isolates was determined by the disk diffusion technique in Mueller–Hinton agar followed by oxacillin screening. The iMLSB phenotype was detected by D test. Isolates with cMLSB and iMLSB phenotypes were subjected to polymerase chain reaction (PCR) for the detection of ermA and ermC genes. Results The cMLSB and iMLSB phenotypes were respectively identified in 39 (37.9%) and five (4.9%) isolates. The iMLSB phenotype was found only in four (10.8%) methicillin-susceptible S. aureus and one (4.5%) methicillin-resistant S. aureus. In the 44 isolates subjected to PCR, four (9.1%) only ermA gene was detected, a lower frequency when compared to only ermC 17 (38.6%) gene and to one (2.3%) isolate presenting both genes. Conclusion In the Staphylococcus spp. analyzed, the ermC gene was found more often than the ermA, although the iMLSB phenotype had been less frequent than the cMLSB. It was important to perform the D test for its detection to guide therapeutic approaches.

https://doi.org/10.1016/j.bjid.2016.03.003 940 downloads

12.

Doenças dermatológicas de notificação compulsória no Brasil
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Penna, Gerson Oliveira

; Domingues, Carla M. A. S

; Siqueira Jr, João Bosco

; Elkhoury, Ana Nilce S. M

; Cechinel, Michella P

; Grossi, Maria Aparecida de Faria

; Gomes, Marcia de Leite S

; Sena, Joana M

; Pereira, Gerson Fernando Mendes

; Lima Júnior, Francisco Edilson F

; Segatto, Teresa Cristina Vieira

; Melo, Flavia Cardoso de

; Rosa, Fabiano Marques

; Silva, Marcia Mesquita

; Nicolau, Renata Amadei

Anais Brasileiros de Dermatologia

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oct 2011, Volume 86 N. 5 Pages 865 - 877

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

A estruturação do Sistema Nacional de Vigilância Epidemiológica do Brasil, em 1975, tornou obrigatória a notificação de algumas doenças transmissíveis com o objetivo de reduzir a carga destes eventos no país. Entretanto, as alterações no perfil epidemiológico destas doenças, associadas a características da sociedade contemporânea, determinam a constante adequação das atividades de vigilância a este cenário. Neste manuscrito, são descritos epidemiologia, tendências e diagnóstico diferencial das seguintes doenças dermatológicas de notificação compulsória no Brasil: aids, dengue, hanseníase, leishmaniose tegumentar americana, sarampo, rubéola e síndrome da rubéola congênita e sífilis. Também são apresentados os principais desafios atuais para o controle e prevenção para cada uma dessas doenças no Brasil

The development of a Brazilian National Surveillance System in 1975 led to a compulsory reporting of selected infectious diseases aiming to reduce the burden of these events in the country. However, shifts in the epidemiology of these diseases associated with modern life style, demand constant revision of surveillance activities. In this manuscript we present the epidemiology, trends and differential diagnosis of the following compulsory notifiable diseases in Brazil: Aids, dengue fever, hanseniasis, American tegumentary leishmaniasis, measles, rubella and congenital rubella syndrome and syphilis. Additionally, the current challenges for control and prevention of each disease are presented

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13.

Streptococcus mutans in denture stomatitis patients under antifungal therapy
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Vasconcelos, Laurylene César de S.

; Sampaio, Fábio Correia

; Sampaio, Maria Carméli Correia

; Pereira, Maria do Socorro Vieira

; Peixoto, Maria Helena Pereira

Revista Odonto Ciência

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2010, Volume 25 N. 2 Pages 120 - 125

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

OBJETIVO: Verificar o número de Streptococcus mutans em saliva de pacientes com estomatite protética antes e após a terapia antifúngica. METODOLOGIA: Após exame clínico de 93 pacientes, 47 foram selecionados para exame micológico e desta amostra foram selecionados trinta pacientes: 15 com diagnóstico positivo e 15 com diagnóstico negativo de candidose foram avaliados para contagem de S. mutans, determinação de fluxo salivar e capacidade tampão. Higiene bucal e da prótese, tempo de confecção, tipo de lesão e dados salivares foram relacionados com características clínicas e laboratoriais de Candida. RESULTADOS: As lesões frequentes foram dos tipos I (43,5%) e II (53,5%). A quantidade de S. mutans foi seis vezes maior em pacientes com candidose e foi associada com baixo fluxo salivar e higiene oral deficiente. Após a terapia, a redução de S. mutans foi verificada particularmente em pacientes com fluxo salivar normal. Os valores variaram de 0,01 a 3,88 UFC/ml x 10(4). CONCLUSÃO: Os dados sugerem que os Streptococcus colaboram com Candida spp na etiopatogenia da estomatite protética. O uso de agentes antimicrobianos orais pode propiciar efeito benéfico para pacientes com estomatite protética submetidos à terapia antifúngica e que apresentam higiene oral deficiente e parâmetros salivares desfavoráveis.

PURPOSE: To assess the number of Streptococcus mutans in saliva of patients with denture stomatitis before and after antifungal therapy. METHODS: After examining 93 patients, 47 were selected for fungal test. Then, from this sample, thirty patients were selected: 15 with positive and 15 with negative diagnosis for candidiasis that were evaluated for S. mutans counting, salivary flow and buffer capacity evaluation. Oral hygiene and prosthesis hygiene, period using prosthesis, lesion type and salivary data were related with clinical laboratorial characteristics of the patients with Candida. RESULTS: The most frequent lesions were type I (43.5%) and II (53.5%). The amount of S. mutans was six times higher in patients with candidiasis and it was associated with low salivary flow and poor oral hygiene. After therapy, a reduction of S. mutans was verified particularly in patients with normal salivary flow. The values ranged from 0.01 to 3.88 x 10(4) cfu/mL. CONCLUSION: The data suggest that Streptococcus spp collaborates with Candida spp in the etiology and pathogenesis of denture stomatitis. The use of oral antimicrobial agents may provide a beneficial effect for denture stomatitis patients that are under antifungal therapy and that have poor oral hygiene and unfavorable salivary parameters.

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14.

Atividade antimicrobiana e antiaderente in vitro do extrato de Rosmarinus officinalis Linn. sobre bactérias orais planctônicas
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Silva, Manoela de Souza Araújo

; Silva, Maria Angélica R.

; Higino, Jane Sheila

; Pereira, Maria S. Vieira

; Carvalho, Alessandra de A. T.

Revista Brasileira de Farmacognosia

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jun 2008, Volume 18 N. 2 Pages 236 - 240

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Neste estudo foi investigada a ação antimicrobiana e a inibição de aderência in vitro do extrato hidroalcoólico de Rosmarinus officinalis Linn. (alecrim) sobre cepas padrão de Streptococcus mitis ATCC 98811, Streptococcus sanguinis ATCC 10556, Streptococcus mutans ATCC 25175, Streptococcus sobrinus ATCC 27609 e Lactobacillus casei ATCC 7469. Os ensaios foram realizados pelas técnicas de ágar-difusão em placas de Petri para determinação da Concentração Inibitória Mínima (CIM) e técnica de tubos inclinados para determinação da Concentração Inibitória Mínima de Aderência (CIMA) ao vidro, na presença de 5% de sacarose. Os mesmos procedimentos foram realizados com a clorexidina à 0,12%. As CIMs (mg/mL) do extrato de Rosmarinus officinalis sobre S. sanguinis ATCC 10556, S. mutans ATCC 25175, S. sobrinus ATCC 27609 e L. casei ATCC 7469 foram 1:1, 1:4, 1:1 e 1:4, respectivamente. Não houve inibição de crescimento de S. mitis ATCC 98811. As CIMAs do extrato de Rosmarinus officinalis frente a S. mitis ATCC 98811, S. mutans ATCC 25175 e S. sobrinus ATCC foram 1:8, 1:16 e 1:8, nessa ordem. Os resultados sugerem a possibilidade de uso do extrato de alecrim como antimicrobiano oral. No entanto, modelos de estudo que possam reproduzir situações mais próximas àquelas encontradas na cavidade oral são requeridas para avaliação de agentes antimicrobianos no tratamento e prevenção de infecções orais biofilme-dependentes.

In this study was investigated the antimicrobial activity and in vitro adherence inhibition of a hydro alcoholic Rosmarinus officinalis Linn. (alecrim) on standard strains of Streptococcus mitis ATCC 98811, Streptococcus sanguinis ATCC 10556, Streptococcus mutans ATCC 25175, Streptococcus sobrinus ATCC 27609 and Lactobacillus casei ATCC 7469 extract. The test was carried out by inundation tecniques in Petri dishes to determine the Minimum Inhibitory Concentration (MIC) and inclined tubes techniques the Minimum Inhibitory Concentration of Adherence to glass (MICA) at the presence of 5% sucrose. Tests with gluconate of chlorexidine 0.12% were performed as controls. MICs of the Rosmarinus officinalis extract dilutions (mg/mL) against S. sanguinis ATCC 10556, S. mutans ATCC 25175, S. sobrinus ATCC 27609 and L. casei ATCC 7469 were 1:1, 1:4, 1:1 e 1:4, respectively. The extract from alecrim inhibited all the standard strains growth tested, except for S. mitis ATCC 98811. MICAs of the Rosmarinus officinalis extract dilutions (mg/mL) against S. mitis ATCC 98811, S. mutans ATCC 25175 e S. sobrinus ATCC were 1:8, 1:16 e 1:8, respectively. The results suggest that there is a possibility of the alecrim use as an oral antimicrobial. Nevertheless, study models which could reproduce situations similar to those seen in bucal caries are necessary for the antimicrobial agents evaluation in the treatment and biofilm dependant oral infections prevention.

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15.

Efeito antibacteriano e antiaderente in vitro do extrato da Punica granatum Linn. sobre microrganismos do biofilme dental
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Pereira, Jozinete V.

; Pereira, Maria S. Vieira

; Sampaio, Fábio C.

; Sampaio, Maria C. Correia

; Alves, Pollianna M.

; Araújo, Cristina R. Ferreira de

; Higino, Jane S.

Revista Brasileira de Farmacognosia

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mar 2006, Volume 16 N. 1 Pages 88 - 93

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

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

In this study was evaluated the in vitro antibacterial activity and the inhibition of glucan sintesis of the fruit bark of Punica granatum Linn extract upon the following dental biofilm bacteria: Streptococcus mitis, Streptococcus mutans, Streptococcus sanguis, Streptococcus sobrinus and Lactobacillus casei. The tests were carried out by inundation tecniques in Petri dishes to determine the Minimum Inhibitory Concentration (MIC) and inclined tubes techniques to determine the Minimum Inhibitory Concentration of Adherence to glass (MICA) at the presence of 5% sucrose. Tests with gluconate of chlorexidine (0.12%) were performed as controls. MICs of the P granatum extract dilutions (mg/mL) against S. mitis, S. mutans, S. sanguis, S. sobrinus e L. casei were 1:32, 1:8, 1:8, 1:512, and 1:128 respectively. For MICAs the P. granatum showed better results than chlorexidine, except for S. mutans with both substances showing similar results of 1:256. It can be concluded that the extract of the P. granatum has the potential to inhibit oral bacterial growth and glucan sintesis. The extract of the Punica granatum might be used as an effective antibacterial alternative agent against oral biofilm bacteria.

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