Consulta: subjectFacets:"Dermatophytes"
Registros recuperados: 17
Data/hora: 06/06/2024 06:38:33

The presence of dermatophytes in infected pets and their household environment
Provedor de dados: 45
Autores: Neves,J.J.A.; Paulino,A.O.; Vieira,R.G.; Nishida,E.K.; Coutinho,S.D.A.
ABSTRACT The aim of this study was to diagnose dermatophytosis in pets and investigate the presence of dermatophytes in their home environment. Samples from hair coat were collected from 70 pets: 47 dogs, 19 cats, three guinea pigs and one rabbit. After mycological culture, 188 samples were collected from the household environments in 26 homes: 78 from places were of predominantly used by the tutors, 66 from places used by the animals, 44 from flooring, and 24 samples from contactees. Samples were seeded on Mycosel agar, incubated at 25°C, and the colonies were identified by their macro-and-microscopic characteristics. Dermatophytes were found in 37.1% of the samples originating from the sick animals. Microsporum canis was the most prevalent species,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Public health; Zoonosis; Household environment; Pets; Dermatophytes.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000601747

Co-Infection by Sarcoptes scabiei and Microsporum gypseum in Free-Ranging Crab-Eating Fox, Cerdocyon thous (Linnaeus, 1766).
Provedor de dados: 52
Autores: Almeida,Jonatas Campos de; Leal,Carlos Adriano de Santana; Melo,Renata Pimentel Bandeira de; Albuquerque,Pedro Paulo Feitosa de; Pedrosa,Camila de Morais; Zermiani,Fabiana Correa; Farias,Roberto Citelli de; Mota,Rinaldo Aparecido.
ABSTRACT The aim of the present study was to describe the clinical manifestation, treatment and outcome of a case of co- infection by Sarcoptes scabiei and Microsporum gypseum in Cerdocyon thous (crab-eating fox) from Northeastern Brazil.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dermatophytes; Public health; Sarcoptic mange; Wild canid; Zoonose.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000100313

Microsporum spp. onychomycosis: disease presentation, risk factors and treatment responses in an urban population
Provedor de dados: 55
Autores: Martínez,Erick; Ameen,Mahreen; Tejada,Diana; Arenas,Roberto.
BACKGROUND:Dermatophytes are the main causative agent of all onychomycosis, but genus Microsporum is infrequent and the risk of acquiring the infection is often associated with exposure to risk factors.OBJECTIVES:To describe clinical characteristics of onychomycosis due to Microsporum onychomycosis in an urban population.METHODS:This was a retrospective analysis of the epidemiological and clinical features of 18Microsporum onychomycosis cases of a total of 4220 of onychomycosis cases diagnosed between May 2008 and September 2011 at the tertiary referral center for mycology in Guatemala.RESULTS:Eighteen cases of Microsporum onychomycosis (M. canis, n=10; M. gypseum, n=7; M. nanum, n=1) were identified (prevalence=0.43%). Infection was limited to nails only...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Onychomycosis; Dermatophytes; Microsporum.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702014000200181

In vitro activity of antifungal and antiseptic agents against dermatophyte isolates from patients with tinea pedis
Provedor de dados: 58
Autores: Soares,Maria Magali Stelato Rocha; Cury,Arlete Emily.
The in vitro activity of antifungal and antiseptic agents were evaluated against dermatophytes isolated from patients with tinea pedis. The antifungals studied were: ciclopirox olamine, cetoconazole, tolciclate and terbinafine, and the antiseptics were: povidine iodine (PVPI), propolis, Fungol®, Andriodermol®, and boric acid. The minimum inhibitory concentration (MIC) or the minimal dilution concentration (MDC) was determined by an agar dilution method using modified yeast nitrogen agar base, and the minimum fungicidal concentration (MFC) or minimum fungicidal dilution (MFD) was determined with subcultures on Sabouraud dextrose agar. All drugs studied were active against the dermatophytes at lower concentrations than those used in products and/or...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dermatophytes; Antifungal agents; Antiseptic agents; Susceptibility testing; Tinea pedis.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822001000200012

Antifungal properties of Brazilian cerrado plants
Provedor de dados: 58
Autores: Souza,Lúcia Kioko Hasimoto e; Oliveira,Cecília Maria Alves de; Ferri,Pedro Henrique; Santos,Suzana Costa; Oliveira Júnior,Juldásio Galdino de; Miranda,André Thiago Borges; Lião,Luciano Morais; Silva,Maria do Rosário Rodrigues.
Ethanolic extracts from leaves of Hyptis ovalifolia, H. suaveolens, H. saxatilis, Hyptidendrum canum, Eugenia uniflora, E. dysenterica, Caryocar brasiliensis and Lafoensia pacari were investigated for their antifungal activity against dermatophytes. The most effective plants were H. ovalifolia and E. uniflora, while Trichophyton rubrum was the most sensitive among the four dermatophytes species evaluated. This study has demonstrated antifungal properties of Brazilian Cerrado plant extracts in "in vitro" assays.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dermatophytes; Antifungal activity; Plant extracts; Susceptibility tests.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822002000300012

Antifungal activity of extracts from Piper aduncum leaves prepared by different solvents and extraction techniques against dermatophytes Trichophyton rubrum and Trichophyton interdigitale
Provedor de dados: 58
Autores: Santos,Maximillan Leite; Magalhães,Chaiana Froés; Rosa,Marcelo Barcellos da; Santos,Daniel de Assis; Brasileiro,Beatriz Gonçalves; Carvalho,Leandro Machado de; Silva,Marcelo Barreto da; Zani,Carlos Leomar; Siqueira,Ezequias Pessoa de; Peres,Rodrigo Loreto; Andrade,Anderson Assunção.
The effects of different solvents and extraction techniques upon the phytochemical profile and anti-Trichophyton activity of extracts from Piper aduncum leaves were evaluated. Extract done by maceration method with ethanol has higher content of sesquiterpenes and antifungal activity. This extract may be useful as an alternative treatment for dermatophytosis.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antifungal activity; Piper aduncum L.; Dermatophytes; Trichophyton; Extraction techniques.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000400035

Anti dermatophytic therapy: prospects for the discovery of new drugs from natural products
Provedor de dados: 58
Autores: Soares,Luciana Arantes; Sardi,Janaína de Cássia Orlandi; Gullo,Fernanda Patrícia; Pitangui,Nayla de Souza; Scorzoni,Liliana; Leite,Fernanda Sangalli; Giannini,Maria José Soares Mendes; Almeida,Ana Marisa Fusco.
Millions of people and animals suffer from superficial infections caused by a group of highly specialized filamentous fungi, the dermatophytes, which only infect keratinized structures. With the appearance of AIDS, the incidence of dermatophytosis has increased. Current drug therapy used for these infections is often toxic, long-term, and expensive and has limited effectiveness; therefore, the discovery of new anti dermatophytic compounds is a necessity. Natural products have been the most productive source for new drug development. This paper provides a brief review of the current literature regarding the presence of dermatophytes in immunocompromised patients, drug resistance to conventional treatments and new anti dermatophytic treatments.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dermatophytes; Filamentous fungi; Natural products; Synthetic product.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000400003

Descriptive study of onychomycosis in a hospital in São Paulo
Provedor de dados: 58
Autores: Ribeiro,Clarissa Santos de Carvalho; Zaitz,Clarisse; Framil,Valéria Maria de Souza; Ottoboni,Thaíssa Santos de Carvalho; Tonoli,Melissa Santos de Carvalho; Ribeiro,Renata Pinto.
Onychomychosis, a nail fungus infection is the most frequent nail ailment, constituting about half of all nail disorders. It can be caused by dermatophytes, non-dermatophytes, yeasts and Prothoteca spp. Methods include 5407 samples of patients with suspected onychomycosis, studied from January 2002 to December 2006, by direct mycological examination and fungi culture. The diagnosis of onychomycosis was confirmed in samples from 3822 direct mycological and/or culture positive. The diagnosis was established by culture for fungi. Among the 1.428 identified agents, the dermatophytes were responsible for 68.6% (N = 980) of cases, followed by yeasts with 27.6% (N = 394), non-dermatophytes fungi with 2.2% (N = 31), Prothoteca spp with 0.1% (N = 2), and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Onychomycosis; Dermatophytes; Yeasts; Non-dermatophytes fungi; Prothoteca spp.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000200485

Dermatophytes and other associated fungi in patients attending to some hospitals in Egypt
Provedor de dados: 58
Autores: Abd Elmegeed,Al Shimaa M.; Ouf,S.A.; Moussa,Tarek A.A.; Eltahlawi,S.M.R.
Dermatophytes are keratinophilic fungi that infect keratinized tissues causing diseases known as dermatophytoses. Dermatophytes are classified in three genera, Epidermophyton, Microsporum, and Trichophyton. This investigation was performed to study the prevalence of dermatomycosis among 640 patients being evaluated at the dermatology clinics at Kasr elainy, El-Husein and Said Galal hospitals in Cairo and Giza between January 2005 and December 2006. The patients were checked for various diseases. Tinea capitis was the most common clinical disease followed by tinea pedis and tinea corporis. Tinea cruris and tinea unguium were the least in occurrence. Tinea versicolor also was detected. The most susceptible persons were children below 10 years followed by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dermatophytosis; Dermatophytes; Fungi; Keratinophilic; Prevalence; Dermatology.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000300799

Anti-fungal potential of ozone against some dermatophytes
Provedor de dados: 58
Autores: Ouf,Salama A.; Moussa,Tarek A.; Abd-Elmegeed,Alshimaa M.; Eltahlawy,Samar R.
ABSTRACT Dermatophytes are classified in three genera, Epidermophyton, Microsporum and Trichophyton. They have the capacity to invade keratinized tissue to produce a cutaneous infection known as dermatophytoses. This investigation was performed to study the effect of gaseous ozone and ozonized oil on three specific properties of six different dermatophytes. These properties included sporulation, mycelia leakage of sugar and nutrients and the activity of their hydrolytic enzymes. Generally, ozonized oil was found to be more efficacious than gaseous ozone. Microsporum gypseum and Microsporum canis were the most susceptible, while Trichophyton interdigitale and T. mentagrophytes were relatively resistant. The study revealed a steady decline in spore...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dermatophytes; Dermatophytosis; Ozone; Hydrolytic enzymes; Ozonized oil.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000300697

The dermatophyte Trichophyton rubrum secretes an EDTA-sensitive alkaline phosphatase on high-phosphate medium
Provedor de dados: 58
Autores: Ferreira-Nozawa,Monica S.; Nozawa,Sérgio R.; Martinez-Rossi,Nilce M.; Rossi,Antonio.
In this communication, we show that the growth of isolate H6 of the dermatophyte Trichophyton rubrum on non-buffered medium and under saturating phosphate conditions is dependent on the initial growth pH, with an apparent optimum at pH 4.0. In addition, irrespective of the initial growth pH, the pH of the medium alteredduring cultivation reaching values that ranged from 8.3 to 8.9. Furthermore, this isolate synthesized and secreted almost the same levels of an alkaline phosphatase with an apparent optimum pH ranging from 9.0 to 10.0 when grown on both low- and high-phosphate medium. Also, this alkaline phosphatase is activated by Mg2+ and is EDTA-sensitive. On the other hand, the very low levels of the enzyme retained by the mycelium grown on buffered...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alkaline phosphatase; Ambient pH; Dermatophytes; Enzyme secretion; Trichophyton rubrum; Pi sensing.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000200014

Isolation of Microsporum gypseum from the haircoat of health wild felids kept in captivity in Brazil
Provedor de dados: 58
Autores: Bentubo,Henri Donnarumma Levy; Fedullo,José Daniel Luzes; Corrêa,Sandra Helena Ramiro; Teixeira,Rodrigo Hidalgo Friciello; Coutinho,Selene Dall' Acqua.
Dermatophytes are fungi that cause superficial mycoses in animals and humans. While studies have shown that domestic cats (Felis catus) are often asymptomatic carriers of dermatophytes, and thus a significant source of infection, this aspect has not been studied in relation to their wild relatives. The present study was aimed at determining the presence of dermatophytes on the haircoat of healthy wild felids, kept in captivity at "Fundação Parque Zoológico de São Paulo". Samples were taken from 130 adult animals of both sexes: 25 lions (Panthera leo), 12 tigers (Panthera tigris), 6 jaguars (Panthera onca), 4 leopards (Panthera pardus), 2 snow leopards (Panthera uncia), 2 pumas (Puma concolor), 2 cheetahs (Acinonyx jubatus), 1 ocelot (Leopardus pardalis),...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dermatophytes; Microsporum gypseum; Dermatophytosis; Wild felids.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000200010

Isolation of dermatophytes in wild felids from screening centers
Provedor de dados: 58
Autores: Albano,Ana Paula N.; Nascente,Patrícia da Silva; Leite,Alice T. Meirelles; Xavier,Melissa O.; Santin,Rosema; Mattei,Antonella Souza; Humberg,Roberta M.P.; Coimbra,Marco Antonio A.; Minello,Luiz Fernando; Meireles,Mario C.A.
The aim of this study was detect the presence of dermatophyte fungi on wild felids from screening centers. Samples were taken from 30 animals, assembled in two groups: "free-ranging" and "transitory captivity". The dermatophytes (Trichophyton genus), isolated from two felids (6.6%), both of the group "free-ranging".
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Trichophyton sp.; Dermatophytes; Wild felids.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000100025

A 7-year survey of superficial and cutaneous mycoses in a public hospital in Natal, Northeast Brazil
Provedor de dados: 58
Autores: Calado,Nicácia Barbosa; Sousa Júnior,Francisco Canindé de; Diniz,Mariana Guimarães; Fernandes,Ana Cristina Santos; Cardoso,Fernando José Ramos; Zaror,Luiz Conrado; Ferreira,Maria Ângela Fernandes; Milan,Eveline Pipolo.
In the present study, we determined the frequency of superficial and cutaneous mycoses and their etiologic agents during a 7-year period (2002-2008) in Natal, Brazil. A total of 1,717 specimens of skin, nail, and hair were collected from 1,382 patients with suspected mycoses lesions and were then subjected to direct microscopy and culture.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cutaneous mycoses; Dermatophytes; Fungal infections; Yeasts; Superficial mycoses.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000400008

Detection of seasonal asymptomatic dermatophytes in Van cats
Provedor de dados: 58
Autores: Ilhan,Ziya; Karaca,Mehmet; Ekin,Ismail Hakki; Solmaz,Hasan; Akkan,Hasan Altan; Tutuncu,Mehmet.
Abstract The Van cat is a domestic landrace found in the Van province of eastern Turkey. In this study, we aimed to determine the seasonal carriage of dermatophytes in Van cats without clinical lesions. A total of 264 hair specimens were collected from clinically healthy cats in and around the Van Province. Of these samples, 30.3% were obtained in spring, 30.6% in summer, 16.6% in autumn, and 22.3% in winter; 45.1% of samples were from male cats and the rest from female ones. Of the studied cats, 118 were younger than 1 year, 78 were 1–3 years old, and 68 were older than 3 years. The specimens were subjected to direct microscopic examination with 15% potassium hydroxide and cultured on Sabouraud dextrose agar and dermatophyte test medium supplemented with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carriage; Dermatophytes; Isolation; Van cat.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822016000100225

Antimicrobial effects of allicin and ketoconazole on trichophyton rubrum under in vitro condition
Provedor de dados: 58
Autores: Aala,Farzad; Yusuf,Umi Kalsom; Jamal,Farida; Rezaie,Sassan.
Dermatophytosis is caused by a group of pathogenic fungi namely, dermatophytes, is among the most prevalent infectious diseases worldwide. Azole drugs are widely used in the treatment of dermatomycosis, but can cause various side effects and drug resistance to the patients. Hence, for solving this problem can be used from the plant extract as alternative for chemical drugs. Allicin is a pure bioactive compound isolated from garlic was tested for its potential as a treatment of dermatomycosis in this study. This study evaluated the in vitro efficacy of pure allicin against ten isolates of Trichophyton rubrum and the MIC50 and MIC90 ranged from 0.78-12.5 µg/ml for allicin. The results revealed that the order of efficacy based on the MICs values, all isolates...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Allicin; Antifungal drugs; Dermatophytes; MIC (minimal inhibitory concentration.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200044

Effects of Cymbopogon winterianus Jowitt ex Bor essential oil on the growth and morphogenesis of Trichophyton mentagrophytes
Provedor de dados: 60
Autores: Pereira,Fillipe de Oliveira; Wanderley,Paulo Alves; Viana,Fernando Antônio Cavalcanti; Lima,Rita Baltazar de; Sousa,Frederico Barbosa de; Santos,Sócrates Golzio dos; Lima,Edeltrudes de Oliveira.
Trichophyton mentagrophytes is a fungus causative agent of dermatophytosis, affecting humans worldwide. This has driven the search for products for the treatment of these infections. Accordingly, the aim of this study was to investigate the antifungal activity of the Cymbopogon winterianus essential oil against T. mentagrophytes. The antifungal tests consisted of antifungal screening, determination of MIC and MFC, analysis of the essential oil's effects on mycelial growth, germination of fungal spores, fungal viability, morphogenesis, cell wall (test with sorbitol) and cell membrane (cell leakage test) of T. mentagrophytes. Upon screening, the oil inhibited all strains, with zones of growth inhibition of 24-28 mm in diameter. The MIC was 312 μg/mL and CFM...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trichophyton mentagrophytes/mycology; Dermatophytosis Cymbopogon winterianus/essential oil; Dermatophytosis Cymbopogon winterianus/antifungal activity; Dermatophytes.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502011000100018