PERCEPÇÃO DE TUTORES DE CÃES E GATOS SOBRE A DERMATOFITOSE E SEU POTENCIAL ZOONÓTICO

2021 ◽  
Author(s):  
Ester Gonçalves Amorim ◽  
Karoline Pereira De Sousa ◽  
Beatriz De Paula Serradourada ◽  
Júlia Lima Perobelli ◽  
Osvaldo José Da Silva Neto
Keyword(s):  
Trichophyton Mentagrophytes ◽  
Microsporum Canis ◽  
Microsporum Gypseum

Introdução: A dermatofitose é uma infecção cutânea superficial que atinge o estrato córneo e tecidos queratinizados causada por fungos dermatófitos, os principais fungos causadores são o Microsporum canis, Microsporum gypseum e Trichophyton mentagrophytes. A dermatofitose é uma zoonose de distribuição cosmopolita que atinge principalmente cães, gatos e humanos devido a sua relação íntima, se apresenta em forma de lesões circulares, eritematosas, de crescimento centrífugo e acompanhadas ou não de prurido. Objetivos: Objetivou- se com a realização deste trabalho evidenciar o conhecimento de tutores de cães e gatos a respeito da dermatofitose com foco na sua transmissão e prevenção. Materiais e métodos: O estudo foi realizado de forma remota por meio de questionário com cinco perguntas afirmativas e de múltipla escolha através da plataforma Google Formulários, concedido por link em redes sociais. O estudo teve caráter quantitativo com população amostral de 128 pessoas no período de 28 de Junho a 05 de Julho de 2021. Resultados: 92,2% dos participantes são tutores de cães ou gatos. 71,9% já apresentaram a doença ou conhecem algum caso de dermatofitose e 28,1% não têm conhecimento. Sobre os animais que podem transmitir a dermatofitose, os participantes afirmam: cães e gatos (43%); gatos, cães, coelhos e roedores (32,8%); apenas gatos (21,9%); alegaram não saber a resposta (2,4%). Referente às formas de transmissão do fungo, alegaram que ocorrem por: contato indireto por fômites (68,8%); contato direto com animal contaminado (52,3%); brigas entre animais contaminados (37,5%); cavar e arranhar solo e árvores contaminadas (15,6%). A respeito das formas de prevenção, assinalaram: isolar animais infectados dos sadios (73,4%); limpeza do ambiente com hipoclorito de sódio ou alvejante (71,9%); limitar acesso do animal a rua e evitar contato com animais que podem estar contaminados (57,8%); usar luvas ao manejar animais infectados (57%); diagnóstico e tratamento precoce (48,4%); castração (7%). Conclusão: Portanto, fica evidente que os tutores não possuem conhecimento necessário a respeito da dermatofitose, principalmente sobre suas formas de transmissão, sendo necessário elaboração de políticas de conscientização e educação a respeito das dermatopatias zoonóticas.

scholarly journals Dermatofitosis humana en una comunidad con desigualdad social, Ayacucho 2018

2019 ◽  
Vol 27 (1) ◽  
Author(s):  
Serapio Romero Gavilán
Keyword(s):  
Trichophyton Rubrum ◽  
Trichophyton Mentagrophytes ◽  
Microsporum Canis ◽  
Microsporum Gypseum

Trabajo de investigación desarrollado con el objetivo de conocer la frecuencia de la dermatofitosis humana en una comunidad con desigualdad social. Hipótesis: la dermatofitosis humana es una afección fúngica muy frecuente en comunidades con desigualdad social. Zona de estudio: comunidad con desigualdad social periurbana de la ciudad de Ayacucho. Tipo de estudio: no experimental. Diseño de estudio: descriptivo-transversal. Muestra: no probabilística, individuos con signos de afecciones compatibles a micosis superficial. Metodología: muestras de escamas de piel, pelos, fragmentos de uñas de pies y manos, escamas de planta, espacios interdigitales y otras partes de cuerpo, fueron tomadas con una hoja de bisturí de filo romo o con el borde de un portaobjetos previa desinfección con alcohol al 70% y colocadas en sobres de papel oscuro etiquetados, en el laboratorio de Epidemiología y Micología de la Universidad Nacional de San Cristóbal de Huamanga, se realizó la observación directa con KOH al 20% y la siembra en placas Petri conteniendo Agar Sabouraud y Agar selectivo para hongos patógenos, después de una incubación a 25ºC por hasta 14 días; las colonias coincidentes con dermatofitos fueron observados al microscopio para identificarlos. Resultados: se ha encontrado que 85/153 (55,5%) presentaron diversas formas de dermatofitosis, no se observó preferencia de la dermatofitosis humana con relación al género (p> 0,05), los factores asociados a la dermatofitosis determinados estadísticamente (p< 0,05) fueron la higiene, el piso de la vivienda y la crianza de animales, se han identificado las especies de Trichophyton rubrum, Trichophyton mentagrophytes, Microsporum canis y Microsporum gypseum.

scholarly journals In VivoEvaluation ofGalla chinensisSolution in the Topical Treatment of Dermatophytosis

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Kai Sun ◽  
Xu Song ◽  
RenYong Jia ◽  
Zhongqiong Yin ◽  
Yuanfeng Zou ◽  
...  
Keyword(s):  
Trichophyton Mentagrophytes ◽  
Clinical Score ◽  
Skin Lesions ◽  
Positive Control ◽  
Microsporum Canis ◽  
Microsporum Gypseum ◽  
Pharmacological Effects ◽  
Mycological Cure ◽  
Candidate Drug ◽  
Cure Rates

Aim. Dermatophytosis is one of the main fungal diseases in humans and animals all over the world.Galla chinensis, a traditional medicine, has various pharmacological effects. The goal of this study was to evaluate the treatment effect ofGalla chinensissolution (GCS) on dermatophytosis-infected dogs (Microsporum canis,Microsporum gypseum, andTrichophyton mentagrophytes, resp.).Methods. The treatment effects of GCS were evaluated by mycological cure rates and clinical score comprised of three indices, including inflammation, hair loss, and lesion scale.Results. The results showed that, in the three models of dermatophytosis, GCS significantly (P<0.05) improved skin lesions and fungal eradication. GCS (10% and 5%) had higher efficacy compared to the positive control (Tujingpi Tincture). The fungal eradication efficacy exceeds 85% after treatment with GCS (10%, 5%, and 2.5%) on day 14.Conclusion. The GCS has antidermatophytosis effect in dogs, which may be a candidate drug for the treatment of dermatophytosis.

scholarly journals Los animales domésticos (perros y gatos) como reservorio fúngico

2019 ◽  
Vol 3 (2) ◽  
Author(s):  
E. Piontelli L. ◽  
M. A. Toro S. M.
Keyword(s):  
Trichophyton Mentagrophytes ◽  
Microsporum Canis ◽  
Microsporum Gypseum ◽  
Phialophora Verrucosa ◽  
Exophiala Jeanselmei ◽  
Trichophyton Terrestre

En una investigación epidemiológica efectuada en la ciudad de Valparaíso y sus alrededores, entre los años 1985-86, se estudió mediante la técnica del tapete la presencia de hongos patógenos y oportunistas en 278 animales domésticos -191 perros y 87 gatos- sin lesiones clínicas aparentes de dermatofitosis en su pelaje.En los 191 perros, un 6,3% presentó dermatófitos zoofíficos (4 Trichophyton mentagrophytes y 8 Microsporum canis) y un 17,3% de dermatofitos geofílicos (2 Microsporum gypseum-fulvum complex, 6 Keratinomyces ajelloi y 24 Trichophyton terrestre). Los 87 gatos presentaron un 18,4% de zoofíficos (2 T. mentogrophytes, 14 M. canis) y un 12,6% de geofí1icos (1 M. gypseum-fulvum complex, 4 K. ajelloi y 4 T. terrestre).La mayor frecuencia de M. canis (16,1% en gatos y solo un 4,2% en perros}, indica que este agente es capaz de sobrevivir en el pelaje sin causar lesiones aparentes y debe considerarse la especie Zoo-antropofílica más común transmisible al hombre en la edad pediátrica.Entre los Onygenales e Hyphomycetes relacionados, la mayoría de los aislamientos corresponde a las especies de chrysosporium (30,9% del total de perros y 50,6% del total de gatos).Entre las especies fúngicas potencialmente patógenas, puede apreciarse una franca predominancia de los géneros Scopulariopsis, Altenaria y Aspergillus en perros y de Scopulariopsis y Alrernaria. en gatos. Phialophora verrucosa y Exophiala jeanselmei, se destacan como hallazgos interesantes

scholarly journals Essential Oil Composition and Biological Activity of “Pompia”, a Sardinian Citrus Ecotype

Molecules ◽  
2019 ◽  
Vol 24 (5) ◽  
pp. 908 ◽  
Author(s):  
Guido Flamini ◽  
Laura Pistelli ◽  
Simona Nardoni ◽  
Valentina Ebani ◽  
Angela Zinnai ◽  
...  
Keyword(s):  
Essential Oil ◽  
Trichophyton Mentagrophytes ◽  
Antimicrobial Activities ◽  
Essential Oil Composition ◽  
Citrus Limon ◽  
Microsporum Canis ◽  
Microsporum Gypseum ◽  
Oil Composition ◽  
Antioxidant Power ◽  
First Time

Pompia is a Sardinian citrus ecotype whose botanical classification is still being debated. In the present study, the composition of Pompia peel essential oil (EO) is reported for the first time, along with that of the leaf EO, as a phytochemical contribution to the classification of this ecotype. The peel EO was tested for its antioxidant ability (with both the 2,2-diphenyl-1-picarylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) assays). Moreover, its antimicrobial activities were tested for the first time on dermatophytes (Microsporum canis, Microsporum gypseum, and Trichophyton mentagrophytes), on potentially toxigenic fungi (Fusarium solani, Aspergillus flavus, and Aspergillus niger) as well on bacteria (Escherichia coli, Staphylococcus aureus, and Staphylococcus pseudointermedius). The dominant abundance of limonene in the peel EO seems to distinguish Pompia from the Citrus spp. to which it had previously been associated. It lacks γ-terpinene, relevant in Citrus medica EO. Its relative content of α- and β-pinene is lower than 0.5%, in contrast to Citrus limon peel EO. Pompia peel and leaf EOs did not show significant amounts of linalool and linalyl acetate, which are typically found in Citrus aurantium. Pompia peel EO antioxidant activity was weak, possibly because of its lack of γ-terpinene. Moreover, it did not exert any antimicrobial effects either towards the tested bacteria strains, or to dermatophytes and environmental fungi.

scholarly journals The presence of dermatophytes in infected pets and their household environment

2018 ◽  
Vol 70 (6) ◽  
pp. 1747-1753 ◽  
Author(s):  
J.J.A. Neves ◽  
A.O. Paulino ◽  
R.G. Vieira ◽  
E.K. Nishida ◽  
S.D.A. Coutinho
Keyword(s):  
Home Environment ◽  
Guinea Pigs ◽  
Trichophyton Mentagrophytes ◽  
Microsporum Canis ◽  
Microsporum Gypseum ◽  
Hair Coat ◽  
Indirect Contact ◽  
Household Environment ◽  
Trichophyton Quinckeanum ◽  
Prevalent Species

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, isolated in 12 dogs and eight cats; Trichophyton quinckeanum in three guinea pigs, Microsporum gypseum in two dogs and Trichophyton mentagrophytes in one cat. Dermatophytes were found in 69.2% of the surveyed homes; 29.5% of the places/objects predominantly used by the tutors, 42.4% mainly used by the animals, 31.8% from floors, and 50% from contactees. The meeting of dermatophytes in animals and in the household environment confirms the possibility of transmission by direct or indirect contact and their importance in public health.

scholarly journals Tinha do couro cabeludo em crianças de Goiânia, Brasil

2003 ◽  
Vol 36 (6) ◽  
pp. 653-655 ◽  
Author(s):  
Tatiana Dias ◽  
Orionalda de Fátima Lisboa Fernandes ◽  
Ailton José Soares ◽  
Xisto Sena Passos ◽  
Milce Costa ◽  
...  
Keyword(s):  
Trichophyton Rubrum ◽  
Trichophyton Mentagrophytes ◽  
Microsporum Canis ◽  
Microsporum Gypseum ◽  
Trichophyton Tonsurans

Durante o período de janeiro de 1999 a julho de 2002 um total de 164 casos de tinha do couro cabeludo foram diagnosticados através de exames micológicos, realizados no Instituto de Patologia Tropical e Saúde Pública da Universidade Federal de Goiás. Destes pacientes, 94 (57,3%) pertenciam ao sexo masculino, com idades variando de 3 meses a 13 anos. O diagnóstico e identificação dos agentes de dermatofitoses do couro cabeludo foram feitos utilizando-se exame direto com KOH a 20% e cultivo em ágar Mycobiotic e em ágar Sabouraud dextrose acrescido de cloranfenicol. As seguintes espécies foram identificadas: Microsporum canis (71,3%), Trichophyton tonsurans (11%), Trichophyton mentagrophytes (7,9%), Trichophyton rubrum (6,7%) and Microsporum gypseum (3%). Nossos estudos mostraram que o fungo de habitat natural no animal (zoofílico), Microsporum canis foi o agente mais comum de lesões no couro cabeludo em humanos.

scholarly journals Chemical Composition, Antifungal and Insecticidal Activities of the Essential Oils from Tunisian Clinopodium nepeta subsp. nepeta and Clinopodium nepeta subsp. glandulosum

Molecules ◽  
2020 ◽  
Vol 25 (9) ◽  
pp. 2137 ◽  
Author(s):  
Haïfa Debbabi ◽  
Ridha El Mokni ◽  
Ikbal Chaieb ◽  
Simona Nardoni ◽  
Filippo Maggi ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Aspergillus Terreus ◽  
Biological Activities ◽  
Trichophyton Mentagrophytes ◽  
Microsporum Canis ◽  
Microsporum Gypseum ◽  
Stored Product Pests

The present investigation was focused on the study of the chemical composition variability and biological activities of the essential oils from Clinopodium nepeta subsp. nepeta and subsp. glandulosum. Essential oils extraction was performed using hydrodistillation and the separation of the constituents was carried out by gas chromatography coupled with mass spectrometry (GC-MS). Antifungal activities were tested against Aspergillus flavus, Aspergillus terreus, Microsporum canis, Microsporum gypseum, Trichophyton mentagrophytes, and Candida albicans. Toxicity and repellency were evaluated against the stored product pests Tribolium confusum and Sitophilus zeamais. Both essential oils were characterized by a high content of oxygenated monoterpenes. Piperitone ranks first in the subspecies nepeta and piperitenone oxide is the dominant constituent in the subspecies glandulosum. All tested samples displayed noteworthy antifungal properties, with the highest activity observed for the essential oil of C. nepeta subsp. glandulosum, collected in Béni-M’tir, against T. mentagrophytes (MIC = 40 µg/mL). The essential oil samples of C. nepeta subsp. glandulosum were strongly repellent to the insect species (PR > 80%, after 2h) and highly toxic to S. zeamais reaching 97.5%–100% mortality after 24 h of exposure. In conclusion, this study showed considerable intra-specific changes in the quality of C. nepeta essential oils, which is reflected in different rates of antifungal and insecticidal activity.

Antifungal effects of the biological agent Pythium oligandrum observed in vitro

2016 ◽  
Vol 19 (8) ◽  
pp. 817-823 ◽  
Author(s):  
Martina Načeradská ◽  
Michaela Fridrichová ◽  
Dita Kellnerová ◽  
Soňa Peková ◽  
Petr Lány
Keyword(s):  
Fungal Infections ◽  
Trichophyton Mentagrophytes ◽  
Microsporum Canis ◽  
Microsporum Gypseum ◽  
Pythium Oligandrum ◽  
Nutrient Media ◽  
Therapeutic Concentration ◽  
Common Causes ◽  
Antifungal Effects

Objectives Dermatophytosis, commonly known as ringworm, is a superficial fungal skin disease and zoonosis. Pythium oligandrum is a micromycete with mycoparasitic properties that is used in agriculture to control fungal infections on plants. Formulations containing P oligandrum were also developed for the treatment of dermatophytoses, but only a small number of case studies have been published. In order to document the process in simplified conditions in vitro, we investigated the effectiveness of P oligandrum against three pathogenic dermatophytes common in domestic animals. Methods Cultures of the pathogens grown on nutrient media and experimentally infected cat hair were treated with P oligandrum preparations in therapeutic concentration and the changes were documented by microscopic videos and scanning electron microscopy. Results There was strong mycoparasitic activity of P oligandrum against Microsporum canis, Microsporum gypseum and Trichophyton mentagrophytes. Conclusions and relevance P oligandrum was demonstrated to be effective against three common causes of dermatophytosis in vitro.

scholarly journals In Vitro Antifungal Activity of Hexahydropyrimidine Derivatives against the Causative Agents of Dermatomycosis

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Francislene J. Martins ◽  
César A. Caneschi ◽  
Mônica P. Senra ◽  
Gustavo S. G. Carvalho ◽  
Adilson D. da Silva ◽  
...  
Keyword(s):  
Antifungal Activity ◽  
Morphological Changes ◽  
Trichophyton Mentagrophytes ◽  
Microsporum Canis ◽  
Microsporum Gypseum ◽  
Scanning Electron Micrographs ◽  
Epidermophyton Floccosum ◽  
Synthetic Drugs ◽  
Causative Agents

Nitrogenated heterocyclic compounds are present in both natural and synthetic drugs, and hexahydropyrimidine derivatives may prove to be efficient in treating dermatomycosis causing fungi. This study evaluated the antifungal activity of four hexahydropyrimidine derivatives against the dermatomycosis causing fungi. These derivatives were synthesized, characterized, and assessed in terms of their activity against Trichophyton mentagrophytes, Microsporum canis, Microsporum gypseum, Trichophyton rubrum, Fusarium oxysporum, and Epidermophyton floccosum between concentrations 7.8 and 1,000 μg mL−1. Scanning electron micrographs were assessed for the active derivatives and reference drugs, and these micrographs revealed that new agents cause morphological changes in fungi. The derivatives HHP1, HHP3, and HHP4 revealed poor activity against the four fungal strains (MICs range 500–1000 μg mL−1). Compound HHP3 was found to be the best potential antifungal agent among those tested and was the most effective among all the active derivatives that caused morphological changes in the susceptible strains.

scholarly journals Epidemiologia de micoses, pitiose e micotoxicoses em equinos no sudeste do Rio Grande do Sul

2018 ◽  
Vol 38 (6) ◽  
pp. 1110-1116
Author(s):  
Angelita Reis-Gomes ◽  
Clairton Marcolongo-Pereira ◽  
Eliza Simone V. Sallis ◽  
Fábio R.P. Bruhn ◽  
Renata O. Faria ◽  
...  
Keyword(s):  
Candida Albicans ◽  
Rio Grande ◽  
Trichophyton Mentagrophytes ◽  
Microsporum Canis ◽  
Microsporum Gypseum ◽  
Cryptococcus Laurentii ◽  
Rio Grande Do Sul ◽  
Trichophyton Verrucosum

RESUMO: Descrevem-se os aspectos epidemiológicos das doenças causadas por fungos e oomicetos na população de equinos na região sudeste do Rio Grande do Sul, estabelecendo as taxas epidemiológicas, suas causas e sua importância sanitária na região. Foi realizada a epidemiologia descritiva por meio do cálculo da incidência das doenças encontradas ao longo dos anos e verificada a existência de associação entre a ocorrência dessas enfermidades e o sexo, a raça e a estação do ano. Entre os anos de 1978 e 2014 a pitiose teve prevalência de 49,71% (86/173), as micotoxicoses 30,05% (52/173), sendo 45 casos de leucoencefalomalácia e sete de ergotismo. As micoses tiveram prevalência de 19,65% (34/173), sendo as dermatofitoses as mais prevalentes com 58,82% (20/34) dos casos. As espécies de dermatófitos mais frequentemente isoladas foram Trichophyton mentagrophytes 60% (12/20), Trichophyton equinum 25% (5/20) e Microsporum gypseum, Microsporum canis e Trichophyton verrucosum ambos responsáveis por 5% (1/20) das infecções. Rinosporidiose foi diagnosticada em 35,29% (12/34) dos casos. Micoses uterinas causadas por Candida albicans e Cryptococcus laurentii foram observadas em 5,88% (2/34) dos casos. Alergia por Cladosporium sp. teve um registro. De acordo com as incidências calculadas entre 1990 e 2014 a pitiose teve incidência mediana (IM) 2,98 e distância interquartil (DI) =3,82, as fêmeas tiveram chance 4,18 vezes maiores de desenvolver a doença, a enfermidade ocorre independente das estações climáticas. A leucoencefalomalácia teve IM=0,0; DI 1,00 e equinos machos tiveram 3,4 vezes mais chance de desenvolver a doença que fêmeas, no inverno a possibilidade de ocorrência dessa enfermidade foi seis vezes maior. O ergotismo teve IM = 0,00; DI = 0,000, rinosporidiose IM=0,00; DI=0,088 e dermatofitose IM=0,00; DI=0,935. A pitiose foi mais prevalente entre as doenças encontradas, podendo ser considerada endêmica na região. Considera-se que a magnitude das doenças possa ser ainda maior dentro do rebanho equino, uma vez que as doenças descritas não são de notificação obrigatória e algumas são bem conhecidas por veterinários e proprietários, que muitas vezes não fazem a confirmação laboratorial do diagnóstico.

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