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| Neves,Rejane Pereira; Cavalcanti,Maria Auxiliadora de Q.; Chaves,Guilherme Maranhão; Magalhães,Oliane M.C.. |
| In order to investigate yeasts in oropharyngeal secretion, urine, sputum and inguinal scales from AIDS patients, clinical samples were collected from one hundred patients interned in the Infectious and Parasitic Diseases Sector of the Hospital das Clínicas of the Universidade Federal de Pernambuco and in Hospital Universitário Osvaldo Cruz of the Universidade de Pernambuco. Yeasts were isolated from seventy-two out of one hundred and eight clinical samples. The isolated yeasts were: Candida albicans (sixty-two isolates), Candida tropicalis (four isolates), Candida glabrata (two isolates), Candida parapsilosis (two isolates), Candida krusei (one isolate) and Trichosporon pullulans (one isolate). |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Yeasts; AIDS; Candida spp. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000400017 |
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| Chaves,Guilherme Maranhão; Cavalcanti,Maria Auxiliadora de Queiroz; Porto,Ana Lúcia Figueiredo. |
| In order to evaluate the pathogenicity of yeasts of medical importance, 15 strains stocked in mineral oil at the URM Culture Collection of the Department of Mycology, Biological Sciences Centre, Federal University of Pernambuco and 15 fresh strains isolated from AIDS patients interned at the Clinical Hospital, Centre of Health Sciences, Federal University of Pernambuco, were selected. As pathogenicity characteristics, the ability to grow at 37ºC and production of phospolipase and proteinase were tested. All samples grew at 37ºC and exhibited proteinase activity. However when tested on solid medium, the proteinase activity was negative. Among 15 stocked samples, 13 (86.66%) were phospholipase positive and two (13.34%) were phospholipase negative. From the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Yeasts; Pathogenicity; Temperature; Phospholipase; Proteinase. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000300003 |
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| Neves,Rejane Pereira; Cavalcanti,Maria Auxiliadora de Queiroz; Chaves,Guilherme Maranhão; Magalhães,Oliane Maria Correia. |
| Trichosporon has been reported as a remarkable emerging pathogen and usually occurs in imunodrepressed patients. An oropharyngeal secretion sample was collected from a patient with AIDS, at the Sector of Infectious and Parasitic Diseases, Osvaldo Cruz University Hospital, Pernambuco State, Brazil. No yeast cells or arthroconidia were observed in the direct exam, but a culture was positive for Trichosporon pullulans, which is being reported in an AIDS patient for the first time. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Trichosporon pullulans; AIDS. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000300010 |
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| Ferreira,Magda Rhayanny Assunção; Santiago,Rosilene Rodrigues; Silva-Rocha,Walicyranison Plínio; Souza,Luanda Barbara Ferreira Canário de; Faria,Maria Graciela Icher; Mello,João Carlos Palazzo de; Langassner,Silvana Maria Zucolotto; Chaves,Guilherme Maranhão; Milan,Eveline Pipolo; Svidzinski,Terezinha Inez Estivalet; Soares,Luiz Alberto Lira. |
| The aim of this study was evaluate the in vitro antifungal activity of crude extracts from Eugenia uniflora, Libidibia ferrea and Psidium guajava. The extracts were obtained by turbo-extraction using water (AQ) or acetone-water (AC-W) (7:3, v/v) as solvents and lyophilized to obtain the crude extracts (CE). The CE were characterized by UV-Vis, TLC and HPLC. The activity of CEs was investigated against clinical isolates of Candida spp. and the Minimum Inhibitory Concentration (MIC), MIC50 and MIC90 were determinated. The analysis by TLC showed that all CEs presented polyphenols (flavonoids and tannins). The CEs from E. uniflora showed higher amount of polyphenols (30.35 ± 2.15%, AC-W) and the HPLC analysis revealed the tannins in all extracts. The CEs of E.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Medicinal plants; Herbal extracts; Polyphenols; Candida isolates; Oral candidiasis. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100608 |
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| Kujbida,Paula; Maia,Patrícia Penido; Araújo,Ariadne Naama de; Mendes,Leonardo Daniel; Oliveira,Mariana Lepri de; Silva-Rocha,Walicyranison Plinio; Brito,George Queiroz de; Chaves,Guilherme Maranhão; Martins,Isarita. |
| In the present study, the occurrence of fungi and aflatoxins (AFs) in peanut and cashew nut samples was investigated. Mycological analysis revealed the presence of fungi in 58.8% of samples, and assessment of AFs by chromatographic methods revealed that 52.9% were contaminated by AFs. AFB1 was the principal component in all AF-contaminated samples, with a mean level of 14.0, and 1.08 µg/kg in peanut and cashew nut, respectively. Eleven samples (32.4%) exceeded the total AF maximum level (4 μg/kg) and 8 samples (23.5%) exceeded the AFB1 (2 μg/kg) established by the European Commission. Our findings suggest that the incidence of AFs emphasizes the need for regular monitoring and a more stringent food safety system to control AFs at the lowest possible levels... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aflatoxin; Peanut; Cashew nut; Fungi; Risk assessment. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502019000100502 |
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