Resistance profiles to antifungal agents in Candida albicans isolated from human oral cavities: systematic review and meta-analysis.

AIM: To identify the antifungal susceptibility profile of Candida spp. isolated from the human oral cavity was assessed with meta-analyses of observational studies that collected samples from the oral cavity of human subjects. MATERIAL AND METHODS: Isolated Candida albicans tested by E-test®; disk diffusion test; microdilution and macrodilution; Sensititre YeastOne; and/or FungiTest. Search strategies were conducted on the MEDLINE, Embase, CINAHL, Dentistry, and Oral Sciences, Central, Scopus, and LILACS databases, and gray literature sources. Articles were initially screened by title and then their abstracts. Articles that met the conditions for inclusion were read in full, followed by data extraction. A descriptive analysis was conducted of each study, and the data were tabulated. A first meta-analysis was conducted to assess the resistance of antifungals regardless of systemic comorbidities. An additional stratified analysis was conducted by systemic comorbidity groups for the outcome "resistance" to the antifungals. RESULTS: When not grouping Candida albicans isolates by systemic conditions, the lowest resistance rates to the antifungals tested were observed for amphotericin B, nystatin, flucytosine, and caspofungin. In contrast, the highest resistance rates were observed for miconazole and econazole. There was a high degree of heterogeneity and low resistance in general in all analyses, except for the "several associated comorbidities" group, which had high resistance rates. CONCLUSIONS: Clinical C. albicans isolates had low antifungal resistance. CLINICAL RELEVANCE: The presence of concomitant systemic comorbidities appears to be an essential factor that should be considered when evaluating resistance to antifungals for oral isolates.

Oral manifestations of autoimmune polyglandular syndrome type 1.

AIMS: Autoimmune polyglandular syndrome type I (APS-I) is a rare condition of autosomal recessive and monogenic inheritance, which is characterized clinically by at least two signs of the classic triad: mucocutaneous candidosis, hypoparathyroidism, and Addison's disease. This study aims to report the oral manifestations of APS-I in a 42-year-old woman, who attended the Special Care Dentistry Center. METHODS AND RESULTS: The patient presented with hypoparathyroidism, diabetes mellitus, and autoimmune hepatitis. Chronic hyperplastic candidosis (CHC) was the main oral manifestation and it was diagnosed based on clinical and cytologic characteristics. Microstomia, angular cheilitis, xerostomia, enamel hypoplasia, and microdontia were also present. CONCLUSIONS: CHC was treated with topical nystatin and oral fluconazole, resulting in a significant improvement of the lesions.

Identificación y susceptibilidad de Candida spp. en el área ginecológica

Resumen La candidiasis es una infección causada por la acción patógena de Candida spp., catalogada como la segunda causa a nivel mundial de infección vaginal en mujeres con edades comprendidas entre 15 y 45 años. Siendo Candida albicans la más prevalente con distribución global. Uno de los problemas de importancia clínica es la resistencia a los antifúngicos debido al uso irracional de los mismos como terapia empírica y profilaxis. Objetivo . Caracterizar la infección por Candida spp., según: perfiles de susceptibilidad y frecuencias de candidiasis vulvo - vaginal relacionada con el balance de contenido vaginal. Así como, la presencia de coinfecciones en mujeres de edad fértil en las ciudades Cuenca - Azogues, que asisten a consulta en el Hospital Monte Sinaí, periodo enero - noviembre de 2020. Materiales y métodos . Estudio de tipo descriptivo, documental de corte transversal, la muestra estuvo conformada por 136 aislados clínicos, se utilizó un muestreo por cobertura total. Resultados . El grupo etario que prevaleció fue de 19 - 39 años. Candida albicans fue la más prevalente en muestras de secreción vaginal con 92.6 %, seguido de Candida glabrata 6.6 % y Candida parapsilosis con 0.7 %. Las tasas de resistencia se diferenciaron en Miconazol con 19.9 %, Itraconazol 16.9 %, y Fluconazol 14%. Conclusiones . El agente etiológico causal de candidiasis vulvo - vaginal fue Candida albicans. La interpretación del balance de contenido vaginal y perfiles de susceptibilidad, son herramientas clave para el óptimo tratamiento de la paciente con infecciones vaginales, evitando la automedicación y la farmacorresistencia.

Abstract Candidiasis is an infection caused by the pathogenic action of Candida spp., Classified as the second worldwide cause of vaginal infection in women aged between 15 and 45 years. Being Candida albicans the most prevalent with global distribution. One of the clinically important problems is resistance to antifungals due to their irrational use as empirical therapy and prophylaxis. Objective : To characterize the infection by Candida spp., according to: susceptibility profiles and frequencies of vulvo-vaginal candidiasis related to the balance of vaginal content. As well as, the presence of co-infections in women of childbearing age in Cuenca - Azogues cities, who attend a consultation at the Monte Sinaí Hospital, January - November 2020 period. Materials and methods . A descriptive, observational cross-sectional study, the sample consisted of 136 clinical isolates, a full coverage sampling was used. Results. The age group that prevailed was 19 - 39 years. Candida albicans was the most prevalent in vaginal discharge samples with 92.6%, followed by Candida glabrata 6.6% and Candida parapsilosis with 0.7%. Resistance rates differed in Miconazole with 19.9%, Itraconazole 16.9%, and Fluconazole 14%. Conclusions . The causative etiological agent of vulvo-vaginal candidiasis was Candida albicans. The interpretation of the balance of vaginal content and susceptibility profiles are a key tool for the optimal treatment of the patient with vaginal infections, avoiding self-medication and drug resistance.

Resumo Candidíase é uma infecção causada pela ação patogênica de Candida spp., Classificada como a segunda causa mundial de infecção vaginal em mulheres com idade entre 15 e 45 anos. Sendo Candida albicans a mais prevalente com distribuição global. Um dos problemas clinicamente importantes é a resistência aos antifúngicos devido ao seu uso irracional como terapia empírica e profilaxia. Objetivo . Caracterizar a infecção por Candida spp., De acordo com: perfis de suscetibilidade e frequências de candidíase vulvovaginal relacionadas ao equilíbrio do conteúdo vaginal. Assim como, a presença de coinfecções em mulheres em idade fértil nos municípios de Cuenca - Azogues, atendidas em consulta no Hospital Monte Sinaí, período janeiro - novembro de 2020. Materiais e métodos . Estudo descritivo, observacional, transversal, a amostra foi composta por 136 isolados clínicos, foi utilizada uma amostra de cobertura total. Resultados . A faixa etária prevalente foi de 19 a 39 anos. Candida albicans foi a mais prevalente nas amostras de corrimento vaginal com 92,6%, seguida por Candida glabrata 6,6% e Candida parapsilosis com 0,7%. As taxas de resistência diferiram no Miconazol com 19,9%, Itraconazol 16,9% e Fluconazol 14%. Conclusões . O agente etiológico causador da candidíase vulvovaginal foi Candida albicans. A interpretação do equilíbrio do conteúdo vaginal e dos perfis de suscetibilidade é uma ferramenta fundamental para o tratamento ideal da paciente com infecções vaginais, evitando a automedicação e a resistência aos medicamentos

Anti-biofilm Action of Chenopodium ambrosioides Extract, Cytotoxic Potential and Effects on Acrylic Denture Surface.

Considering the challenge to control Candida-associated denture stomatitis, the search for antifungal substances derived from natural sources has become a trend in the literature. In this study the following effects of Chenopodium ambrosioides extract (CAE) were investigated: action against biofilms of Candida albicans, its cytotoxic potential, and changes caused in acrylic resin. The CAE was characterized by High Performance Liquid Chromatography (HPLC). The susceptibility of C. albicans to CAE was investigated by Minimum Inhibitory Concentration and Minimum Fungicidal Concentration (MIC and MFC) tests. Acrylic resin disks were fabricated, and C. albicans biofilms were developed on these for 48 h. Afterward the disks were immersed for 10 min in: PBS (Negative Control); 1% Sodium Hypochlorite (1% SH, Positive Control) or CAE at MIC or 5xMIC. The biofilms were investigated relative to counts and metabolic activity. The cytotoxic potential in keratinocytes and fibroblasts was verified by MTT test. Change in color and roughness of the acrylic resin was analyzed after 28 days of immersion in CAE. The data were analyzed by the ANOVA considering a 5% level of significance. The main compounds detected by HPLC were kaempferol and quercetin. Both MIC and MFC obtained the value of 0.25 mg/mL. The MIC was sufficient to significantly reduce the counts and activity of the biofilm cells (p < 0.0001), while 5xMIC resulted in almost complete eradication, similar to 1% SH. Keratinocytes and fibroblasts exposed to the MIC and 5xMIC presented cell viability similar to that of the Control Group (p > 0.05). No important changes in acrylic resin color and roughness were detected, even after 28 days. It could be concluded that the immersion of acrylic resin in C. ambrosioides extract in its minimum inhibitory concentration was effective for the reduction of C. albicans biofilms without any evidence of cytotoxic effects or changes in roughness and color of this substrate.

Improving practice guidelines for the treatment of denture-related erythematous stomatitis: a study protocol for a randomized controlled trial.

BACKGROUND: Denture-related erythematous stomatitis (DES) is a chronic biofilm-mediated disease, affecting one in every three complete denture wearers. Antifungals are the treatment most commonly prescribed by oral health professionals, based on the belief that colonization by Candida spp. is the main cause of DES. However, high recurrence rates and adverse effects are commonly observed, prompting the need for practice guidelines regarding treatment. Results from our pilot study demonstrate that palatal brushing can reduce the palatal inflammation and potentially associated Candida carriage without any need for antifungal therapy. The objective of this study is to validate these pilot results by means of a randomized controlled trial (RCT) and provide a practice guideline for clinicians. METHODS/DESIGN: A pragmatic, two-parallel-arm, multicenter RCT will be conducted in Canada, Brazil, and Chile. Fifty-two adult complete denture wearers presenting with moderate to severe DES will be allocated randomly to two groups: the Intervention arm will consist of palatal brushing and standard oral and denture hygiene measures, while the Control arm will include only standard oral and denture hygiene measures. The study outcome will be the oral Candida carriage. Participants will be assessed at baseline, and at 3 and 6 months post intervention. Descriptive, bivariate, and mixed models with repeated measures will be performed following the intention-to-treat principle. DISCUSSION: This pragmatic RCT will serve to provide a clinical practice guideline regarding the use of preventive measures in the treatment of biofilm-mediated oral diseases. Moreover, it will have a great impact on reducing the harm of antifungal overtreatment on patients suffering from DES. TRIAL REGISTRATION: ClinicalTrials.gov, NCT02686632 . Registered on 15 February 2016.

Candidosis vaginal: Revisión de la literatura y situación de México y otros países latinoamericanos / Vaginal Candidiasis: current situation of Mexico and other Latin American countries

Las levaduras del género Candida causan enfermedades en los humanos que abarcan desde infecciones superficiales no graves, hasta sistémicas y potencialmente mortales. La candidiasis o candidosis, es el origen común de enfermedad vaginal y aunque es una infección no considerada como incapacitante, suele causar síntomas molestos que alteran la conducta del paciente. En México se considera la única micosis de reporte obligatorio ante las autoridades sanitarias. Por lo anterior, en este trabajo se efectuó una revisión bibliográfica para conocer el estado del arte de la vulvovaginitis causada por Candida spp. (VVC), y ofrecer una breve descripción acerca de la frecuencia presentada por esta infección en diversos países de Latinoamérica, con especial énfasis en México. Se muestra que las frecuencias de VVC en Latinoamérica, son muy parecidas a las reportadas en países como Estados Unidos de América; asimismo, Candida albicans sigue prevaleciendo como el principal agente etiológico. Las diferencias encontradas entre países desarrollados con respecto a los latinoamericanos, consisten básicamente en los métodos diagnósticos y el tipo de tratamiento. Desafortunadamente, en México, a pesar de que la VVC ocupa el noveno lugar entre las 20 principales causas de enfermedad del país, en muy pocos casos se efectúa la identificación de la especie causante, lo que constituye un dato de importancia epidemiológica, considerado como la base para investigar los factores que aumentan el riesgo de contagio, en especial por especies Candida no-albicans y para determinar si la enfermedad es prevenible o controlable

Yeasts of the genus Candida cause diseases in humans ranging from superficial, non-serious, to systemic and potentially life-threatening infections. Candidiasis or thrush, is the common origin of vaginal disease and although it is not considered disabling, infection usually cause troublesome symptoms that alter the behavior of the patient. In Mexico it is considered the unique mycosis of mandatory reporting to health authorities. Therefore, in this work a literature review was conducted to know the state of the art of the vulvovaginitis caused by Candida spp. (VVC), as well as provide a brief description about the frequency presented by this infection in different countries of Latin America, with special emphasis on Mexico. It shows that the frequencies of VVC in Latin America, are very similar to those reported in countries such as the United States of America; in addition, Candida albicans still prevails as the main etiologic agent. The differences found between developed countries with respect to Latin American countries basically consist of the diagnostic methods and the type of treatment. Unfortunately, in Mexico, while the VVC ranks ninth among the 20 principal causes of disease in the country, in very few cases is carried out the identification of the causative species, which constitutes a fact of epidemiological importance, considered as the basis for investigating the factors that increase the risk of infection, especially by Candida nonalbicans species and to determine if the disease is preventable or controllable

Prevalence of Candida spp. in Healthy Oral Mucosa Surfaces with Higher Incidence of Chronic Hyperplastic Candidosis.

INTRODUCTION: Predisposing factors in chronic hyperplastic candidosis (CHC) have been poorly recognized. This study aimed at assessing the prevalence of Candida spp. in areas of the oral mucosa showing greater prevalent rate of CHC, such as the retrocomissural area, the lateral borders of the tongue, and the hard-palate mucosa in four groups of individuals presenting predisposing factors as follows: Smoking habits (group I); patients with low salivary flow rate (SFR) (hyposalivation - group II); patients with loss of vertical dimension of occlusion (LVDO -group III); and control subjects (group IV). MATERIALS AND METHODS: A total of 44 individuals (age 4090 years, mean: 55.8 years) were divided into four groups: Group I (11 smokers); group II (10 hyposalivation patients); group III (10 LVDO patients); and group IV (control, 13 healthy subjects). All individuals were tested for Candida-pseudohyphae form by direct examination and for Candida spp. culture growth in samples obtained from the retrocomissural, tongue's lateral border, and hard-soft palatal mucosa. RESULTS: Direct examination showed a statistically significant prevalence rate for pseudohyphae (p < 0.05) on the retrocomissural and on tongue's lateral borders of individuals with LVDO. A statistically significant (p < 0.05) culture growth for Candida spp. was found on the retrocomissural areas of those with hyposalivation and with LVDO, and on the palate mucosa and on the tongue's lateral borders in the smokers and in the individuals with LVDO when compared with those of the control group. CONCLUSION: While direct examination is effective for detecting pseudohyphae, LVDO and tobacco smoking seem to be factors of relevance to the development of CHC. CLINICAL SIGNIFICANCE: Since CHC has been linked to a high rate of malignant transformation, this study analyzes some clinical (and exogenous) factors that may contribute to the development of CHC and addresses some preventive measures to reduce its incidence.

Linfoma no-Hodgkin en un paciente con sida / Non-Hodgkin lymphoma in a patient with AIDS

Se presenta el caso clínico de un paciente de 44 años de edad, con diagnóstico de virus de inmunodeficiencia humana/sida desde el año 2003, que fue ingresado en el Hospital General Docente "Dr. Juan Bruno Zayas Alfonso" de Santiago de Cuba por presentar aumento progresivo del volumen de la región anterior y lateral izquierda del cuello que se extendía hasta la zona anterior de la axila de ese lado, con cianosis y edema en esclavina, disfagia, tos seca irritativa, ronquera, así como astenia marcada, anorexia y pérdida de peso. El cuadro clínico y los resultados de los estudios analíticos e histológicos confirmaron la presencia de un linfoma no Hodgkin de alto grado, unido a candidiasis bucal y esofágica, y síndrome de consunción por el virus de inmunodeficiencia humana.

The case report of a 44 years patient with diagnosis of human immunodeficiency virus /aids since 2003 that was admitted to "Dr. Juan Bruno Zayas Alfonso" Teaching General Hospital in Santiago de Cuba is presented due to a volume progressive increase of the preceding and left lateral region of the neck that extended to the preceding area in the armpit of that side, with cyanosis and shoulder girdle edema, dysphagia, dry irritating cough, hoarseness, as well as marked asthenia, anorexia and weight loss. The clinical pattern and the results of the analytic and histological studies confirmed the presence of a high-grade non Hodgkin lymphoma, along with oral and esophageal candidiosis, and consumption syndrome due to the human immunodeficiency virus.

Endocarditis micótica en un recién nacido de extremadamente bajo peso al nacer: A propósito de un caso / Fungal endocarditis in an extremely low birth weight infant: Case report

Las tasas de supervivencia de los recién nacidos prematuros se han incrementado gracias a los avances tecnológicos y los conocimientos en constante evolución, aunque la sepsis de aparición tardía es más frecuente debido a los períodos prolongados de hospitalización de estos niños. Presentamos el caso de un recién nacido prematuro de extremadamente bajo peso al nacer hospitalizado con síndrome de dificultad respiratoria, enterocolitis necrosante y sepsis fúngica con endocarditis por Candida albicans. Se le administró tratamiento antimicótico hasta que se resolvió la vegetación fúngica. La sepsis y la endocarditis de origen micótico podrían ser una causa de morbilidad significativa en los recién nacidos prematuros. En este artículo revisamos las publicaciones científicas recientes acerca de los factores de riesgo, el diagnóstico, el tratamiento y la prevención de la sepsis fúngica en estos neonatos de alto riesgo.

Survival rates of premature infants have increased with developing technology and evolving knowledge but late-onset sepsis is more frequent due to prolonged hospitalization periods of these infants. We report the case of an extremely low birth weight premature infant who was admitted with respiratory distress syndrome, developed necrotizing enterocolitis and fungal sepsis with endocarditis by Candida albicans. He was treated with antifungal therapy until fungal vegetation resolved. Fungal sepsis and endocarditis may be an important morbidity in preterm infants; we review the recent literature about the risk factors, diagnosis, treatment and prevention of fungal sepsis in these high risk infants.

Virulence and pathogenicity of Candida albicans is enhanced in biofilms containing oral bacteria.

This study examined the influence of bacteria on the virulence and pathogenicity of candidal biofilms. Mature biofilms (Candida albicans-only, bacteria-only, C. albicans with bacteria) were generated on acrylic and either analysed directly, or used to infect a reconstituted human oral epithelium (RHOE). Analyses included Candida hyphae enumeration and assessment of Candida virulence gene expression. Lactate dehydrogenase (LDH) activity and Candida tissue invasion following biofilm infection of the RHOE were also measured. Candida hyphae were more prevalent (p < 0.05) in acrylic biofilms also containing bacteria, with genes encoding secreted aspartyl-proteinases (SAP4/SAP6) and hyphal-wall protein (HWP1) up-regulated (p < 0.05). Candida adhesin genes (ALS3/EPA1), SAP6 and HWP1 were up-regulated in mixed-species biofilm infections of RHOE. Multi-species infections exhibited higher hyphal proportions (p < 0.05), up-regulation of IL-18, higher LDH activity and tissue invasion. As the presence of bacteria in acrylic biofilms promoted Candida virulence, consideration should be given to the bacterial component when managing denture biofilm associated candidoses.

Candidosis vaginal. primera parte: revisión de la clínica, epidemiología y situación de México / Vaginal candidiasis. first part: epidemiology and current state of Mexico

En esta sección se presentan los datos de diversos autores en cuanto a etiología, epidemiología, fisiopatogenia y el perfil clínico de la candidosis o candidiasis vulvo vaginal, con especial atención al escenario actual en México, país en donde es la única micosis de reporte obligatorio ante las autoridades sanitarias, situación que nos motivó a efectuar la presente revisión bibliográfica. La literatura evaluada contempló el período 2007-2013. La vulvovaginitis por Candida spp (VVC), es una infección que habitualmente no se considera incapacitante, aunque sus manifestaciones clínicas pueden dar lugar a gran estrés en las pacientes. En México, los estudios epidemiológicos, han estado enfocados, principalmente, a describir la frecuencia con la que Candida se asocia a casos de vulvo vaginitis y la respuesta clínica a diferentes terapias; sin embargo, es evidente la falta de estudios que relacionen la presencia de Candida con diversos factores de riesgo, la frecuencia de mujeres que recurren a la automedicación y estudios enfocados a la fisiopatología de la vulvo vaginitis causada por este patógeno. Según la literatura consultada, todas estas circunstancias son conocidas y siguen siendo motivo de estudio en países desarrollados.

This section presents data from different authors in terms of etiology, epidemiology, physiopathogeny and the clinical profile of vulvovaginal candidiasis or vulvovaginal candidosis, with special attention to the current scenario in Mexico, a country where it is the only mycosis of mandatory reporting to health authorities, situation that motivated us to carry out the present literature review. The assessed literature took into account the 2007- 2013 period. The vulvovaginitis by Candida spp. (VVC), is an infection that usually is not considered disabling, but its clinical manifestations can give rise to great stress in patients. In Mexico, the epidemiological studies have been focused, primarily, in describing the frequency with which Candida is associated with cases of vulvovaginitis and the clinical response to different therapies; However, it is evident the lack of studies that relate the presence of Candida with different risk factors, the frequency of women who resort to selfmedication and studies focused on the pathophysiology of the vulvovaginitis caused by this pathogen. According to the literature consulted, these circumstances are known and are still cause for study in developed countries.

Identificación molecular de Candida lusitaniae en infección de tracto respiratorio inferior / Molecular identification of Candida lusitaniae in lower respiratory tract infection

Candida lusitaniae es una levadura que ha sido descrita como un patógeno nosocomial emergente de baja frecuencia en infecciones profundas. La identificación oportuna de C. lusitaniae es importante porque puede desarrollar resistencia in vivo a la amfotericina B durante la terapia. Reportamos el aislamiento de C. lusitaniae como agente etiológico de infección de tracto respiratorio inferior en un paciente masculino. Los cultivos de orina y esputo fueron negativos para bacterias y positivos para esta levadura. Los aislamientos fueron identificados por métodos fenotípicos de rutina y confirmados por secuenciación y polimorfismos de longitud de fragmentos de restricción y PCR de la región espaciadora interna del DNA ribosómico.

The yeast Candida lusitaniae has been described as an emerging low frequency nosocomial pathogen in deep infections. Early identification of C. lusitaniae is important because it can readily develop in vivo resistance to amphotericin B during treatment. We report the isolation of C. lusitaniae as etiologic agent of a lower respiratory tract infection in a male patient. Urine and sputum cultures were negative for bacteria and positive for yeast. Isolates were identified by routine phenotypic methods and confirmed by ribosomal DNA internal spacer region restriction fragment length polymorphism PCR and sequencing.

Infecções por Candida spp na Cavidade Oral / Oral infections by Candida spp

As Candida spp são a causa mais frequente de infecções fúngicas humanas. A espécie mais prevalente, a C. albicans, sendo um importante microrganismo comensal da cavidade oral, em determinadas condições, torna-se patogênica, aparecendo associada a várias situações patológicas. Neste artigo, pretende-se fazer uma revisão bibliográfica sobre infecções orais por Candida spp (Candidoses), apresentando a sua classificação, diferentes formas clínicas, diagnóstico e tratamento. Referem-se, ainda, outras patologias que frequentemente surgem associadas a essas infecções.

Human yeast infections are mainly caused by Candida spp. C. albicans is the most common specie and an important commensal microorganism of the oral cavity but in certain conditions becomes pathogenic, appearing associated to several pathological situations. With this article the authors intend to do a revision of oral infections by Candida spp (Candidosis), presenting its classification, different clinical forms, diagnosis and treatment. Other pathologies that frequently appear associated to these infections are also referred.

Candida glabrata Septicemia in a Piglet / Candida glabrata Septicemia in a Piglet

Background: Candida organisms are ubiquitous pathogens that may cause mucosal or systemic infection in humans and animals. Candida albicans was the main Candida specie associated with cases of systemic candidosis, and Candida glabrata is the second most isolated in those cases. In animals there are few reports of candidosis. In pigs C. albicans was described as mucocutaneous disease affecting oral mucosa, esophagus and aglandular stomach of pigs affected by porcine circovirus type 2. Systemic invasion by Candida species in pigs is rare. This report describes the pathological changes observed in a case of systemic candidosis due to C. glabrata infection in a piglet. Case: In a nursery facility with 500 piglets a 47-days-old piglet showed lateral recumbency that progressed to inability to stand, paddling and death. In the necropsy it was observed valvular vegetative endocarditis in the left atrio-ventricular valve and in the kidneys multifocal to coalescing whitish foci in the sub-capsular and in the cut surface. Microscopical examination of the cerebral cortex, brain steam and cerebellum revealed multifocal random necrotic suppurative focci surrounded by mononuclear cells, epithelioid and multinucleated giant cells together with discret linfoplasmocitic meningitis. In the kidneys there was embolic suppurative nephritis with multifocal abscesses in renal parenchyma, characterized

Background: Candida organisms are ubiquitous pathogens that may cause mucosal or systemic infection in humans and animals. Candida albicans was the main Candida specie associated with cases of systemic candidosis, and Candida glabrata is the second most isolated in those cases. In animals there are few reports of candidosis. In pigs C. albicans was described as mucocutaneous disease affecting oral mucosa, esophagus and aglandular stomach of pigs affected by porcine circovirus type 2. Systemic invasion by Candida species in pigs is rare. This report describes the pathological changes observed in a case of systemic candidosis due to C. glabrata infection in a piglet. Case: In a nursery facility with 500 piglets a 47-days-old piglet showed lateral recumbency that progressed to inability to stand, paddling and death. In the necropsy it was observed valvular vegetative endocarditis in the left atrio-ventricular valve and in the kidneys multifocal to coalescing whitish foci in the sub-capsular and in the cut surface. Microscopical examination of the cerebral cortex, brain steam and cerebellum revealed multifocal random necrotic suppurative focci surrounded by mononuclear cells, epithelioid and multinucleated giant cells together with discret linfoplasmocitic meningitis. In the kidneys there was embolic suppurative nephritis with multifocal abscesses in renal parenchyma, characterized

Candida glabrata septicemia in a piglet

Background: Candida organisms are ubiquitous pathogens that may cause mucosal or systemic infection in humans and animals. Candida albicans was the main Candida specie associated with cases of systemic candidosis, and Candida glabrata is the second most isolated in those cases. In animals there are few reports of candidosis. In pigs C. albicans was described as mucocutaneous disease affecting oral mucosa, esophagus and aglandular stomach of pigs affected by porcine circovirus type 2. Systemic invasion by Candida species in pigs is rare. This report describes the pathological changes observed in a case of systemic candidosis due to C. glabrata infection in a piglet. Case: In a nursery facility with 500 piglets a 47-days-old piglet showed lateral recumbency that progressed to inabilit to stand, paddling and death. In the necropsy it was observed valvular vegetative endocarditis in the left atrio-ventricular valve and in the kidneys multifocal to coalescing whitish foci in the sub-capsular and in the cut surface. Microscopical examination of the cerebral cortex, brain steam and cerebellum revealed multifocal random necrotic suppurative focci surrounded by mononuclear cells, epithelioid and multinucleated giant cells together with discret linfoplasmocitic meningitis. In the kidneys there was embolic suppurative nephritis with multifocal abscesses in renal parenchyma, characterized by large amount of neutrophils surrounded by mononuclear cells. In the left valve surface of the hearth there was extensive proliferation of connective tissue with large amount of fibrin, neutrophils and intralesional Gram-positive bacterial colonies with coccoid shape morphology. In brain, hearth and kidneys slides stained with Grocott's methenamine silver and periodic acid-Schiff technique a large amount of yeasts cells round to ovoid in shape were observed associated with necrotic foci and in multinucleated giants cells. Discussion: In the present report, a 47-days-old weaned piglet showed neurological signs that suggested a Streptococcus suis meningitis, and a presumptive diagnostic was reached based on those signs. Antibiotic therapy with amoxicillin was attempted, but there was no improvement in the clinical signs and the piglet died. S. suis was not isolated in the bacteriological analysis, however, PCR technique allowed the detection of the pathogen from the heart, raising the possibility for a role of the agent in the endocardial lesion, but not in the brain. Candida glabrata was detected in the hearth, kidneys and brain suggesting a septicemic spread candidosis in the piglet. Due to the presence of C. glabrata in the piogranulomatous lesions observed in the brain we assumed that the neurological signs were associated with the candidal infection. In humans, it is described the association among intracardiac candidal infection and an increased risk for the development of central nervous system infection. A recent study in slaughter pigs have shown that brain lesions associated with bacterial valvular endocarditis are common. Immunosuppression, low birth weight and broad spectrum antibiotic therapy are among the predisposing factor to the development of septicemic candidosis. In our case report, the piglet was the lighter in the litter at weaning and in the day of necropsy, besides antibiotic therapy was attempted twice in the piglet what could act as another predisposing factor for the septicemic candidosis. This was an unusual case of systemic candidosis with brain involvement and neurological clinical signs associated, due to C. glabrata infection in a piglet.

Candida glabrata Septicemia in a Piglet / Candida glabrata Septicemia in a Piglet

Background: Candida organisms are ubiquitous pathogens that may cause mucosal or systemic infection in humans and animals. Candida albicans was the main Candida specie associated with cases of systemic candidosis, and Candida glabrata is the second most isolated in those cases. In animals there are few reports of candidosis. In pigs C. albicans was described as mucocutaneous disease affecting oral mucosa, esophagus and aglandular stomach of pigs affected by porcine circovirus type 2. Systemic invasion by Candida species in pigs is rare. This report describes the pathological changes observed in a case of systemic candidosis due to C. glabrata infection in a piglet. Case: In a nursery facility with 500 piglets a 47-days-old piglet showed lateral recumbency that progressed to inability to stand, paddling and death. In the necropsy it was observed valvular vegetative endocarditis in the left atrio-ventricular valve and in the kidneys multifocal to coalescing whitish foci in the sub-capsular and in the cut surface. Microscopical examination of the cerebral cortex, brain steam and cerebellum revealed multifocal random necrotic suppurative focci surrounded by mononuclear cells, epithelioid and multinucleated giant cells together with discret linfoplasmocitic meningitis. In the kidneys there was embolic suppurative nephritis with multifocal abscesses in renal parenchyma, characterized

Background: Candida organisms are ubiquitous pathogens that may cause mucosal or systemic infection in humans and animals. Candida albicans was the main Candida specie associated with cases of systemic candidosis, and Candida glabrata is the second most isolated in those cases. In animals there are few reports of candidosis. In pigs C. albicans was described as mucocutaneous disease affecting oral mucosa, esophagus and aglandular stomach of pigs affected by porcine circovirus type 2. Systemic invasion by Candida species in pigs is rare. This report describes the pathological changes observed in a case of systemic candidosis due to C. glabrata infection in a piglet. Case: In a nursery facility with 500 piglets a 47-days-old piglet showed lateral recumbency that progressed to inability to stand, paddling and death. In the necropsy it was observed valvular vegetative endocarditis in the left atrio-ventricular valve and in the kidneys multifocal to coalescing whitish foci in the sub-capsular and in the cut surface. Microscopical examination of the cerebral cortex, brain steam and cerebellum revealed multifocal random necrotic suppurative focci surrounded by mononuclear cells, epithelioid and multinucleated giant cells together with discret linfoplasmocitic meningitis. In the kidneys there was embolic suppurative nephritis with multifocal abscesses in renal parenchyma, characterized

Dermatopatias fúngicas: aspectos clínicos, diagnósticos e terapêuticos / Fungal dermatopathy: clinical, diagnosis and therapeutic aspects

Micoses são doenças infecciosas causadas pelo desenvolvimento e multiplicação de fungos patogênicos em diferentes tecidos e órgãos com manifestações clínicas bastante variadas. Dermatologicamente, estas infecções podem ser classificadas de acordo com a localização do agente em micoses superficiais, cutâneas e subcutâneas, representadas respectivamente pelos fungos Malassezia pachydermtis, dermatófitos, principalmente Microsporum canis,e Sporothrix schenckii. Nas últimas décadas, a utilização crescente de terapias imunossupressivas, o surgimento de infecções retrovirais, em humanos e animais, foram decisivas para a emergência de doenças oportunistas, sendo as doenças fúngicas uma das mais importantes. Além disso, algumas das infecções fúngicas são zoonoses e tem grande importância em saúde pública. O presente trabalho se propôs a realizar detalhada revisão de literatura com o objetivo de fornecer informações relevantes a respeito dos aspectos clínicos, diagnósticos e terapêuticos das principais dermatopatias fúngicas na clínica de pequenos animais.

Mycoses are infectious diseases caused by the development and multiplication of pathogenic fungi in different tissues and organs with various clinical manifestations. Dermatologically, these infections can be classified according to the location of the agent in superficial mycoses, cutaneous and subcutaneous, represented respectively by the fungus Malassezia pachydermtis, dermatophytes, mainly Microsporum canisand Sporothrix schenckii. In recent decades the increasing use of immunosuppressive therapies, emergence of retroviral infections in humans and animals have been crucial to the emergence of opportunistic infections like fungal diseases. Besides, some of fungal infections are zoonoses and have important implications in public health. This study aimed to perform a detailed review about the clinical features, diagnosis and treatment of major fungal skin diseases in small animal clinic

Valoración del tratamiento local de la candidosis oral: correlación etiológica / Assessment of the local therapy in candidosis: ethiological relation

La candidosis oral es una infección oportunista causada por hongos del género Candida. En los últimos años se ha observado un significativo incremento de la incidencia de las infecciones micóticas. Objetivos. Reconocer las formas clínicas que se observan en los pacientes que concurren a la Clínica de Estomatología de la Facultad de Odontología de la Universidad de la República. Evaluar la eficacia de la terapia local. Establecer la relación entre el tiempo promedio de curación y los factores predisponentes observados.Metodología. Se diagnosticó candidosis oral en 51 pacientes. Se implementó el tratamiento antimicótico tópico, corrección de los factores predisponentes y el régimen de controles clínicos.Resultados. Edad promedio: 50 años, localización prevalente paladar, forma clínica: 54% crónica erimatosa, el 73% de los pacientes curaron entre 14 y 21 días, sólo un 26% necesitó mas de 21 días.Conclusiones. Se realiza un primer estudio nacional sobre candidosis oral basado en el diagnóstico clínico, apoyado por el laboratorio microbiológico y histopatológico.Se mostró el índice de respuesta a la terapia local y se confirmó la necesidad de tratamiento más prolongado en el subgrupo de pacientes fumadores.

Valoración del tratamiento local de la candidosis oral: correlación etiológica / Assessment of the local therapy in candidosis: ethiological relation

La candidosis oral es una infección oportunista causada por hongos del género Candida. En los últimos años se ha observado un significativo incremento de la incidencia de las infecciones micóticas. Objetivos. Reconocer las formas clínicas que se observan en los pacientes que concurren a la Clínica de Estomatología de la Facultad de Odontología de la Universidad de la República. Evaluar la eficacia de la terapia local. Establecer la relación entre el tiempo promedio de curación y los factores predisponentes observados.Metodología. Se diagnosticó candidosis oral en 51 pacientes. Se implementó el tratamiento antimicótico tópico, corrección de los factores predisponentes y el régimen de controles clínicos.Resultados. Edad promedio: 50 años, localización prevalente paladar, forma clínica: 54% crónica erimatosa, el 73% de los pacientes curaron entre 14 y 21 días, sólo un 26% necesitó mas de 21 días.Conclusiones. Se realiza un primer estudio nacional sobre candidosis oral basado en el diagnóstico clínico, apoyado por el laboratorio microbiológico y histopatológico.Se mostró el índice de respuesta a la terapia local y se confirmó la necesidad de tratamiento más prolongado en el subgrupo de pacientes fumadores (AU).

Antifungal activity of the extract of Curcuma zedoaria (Christm.) Roscoe, Zingiberaceae, against yeasts of the genus Candida isolated from the oral cavity of patients infected with the human immunodeficiency virus

Oropharyngeal candidiasis is the most common fungal infection among patients infected with the human immunodeficiency virus (HIV), and is treated empirically with topical or systemic antifungals. The objective of the present study was to investigate the possible antifungal action of the hydroalcoholic extract of Curcuma zedoaria (Christm.) Roscoe, Zingiberaceae, on yeasts in this population. Samples were collected from HIV-positive patients who attended the Laboratory for Teaching and Research in Clinical Analysis at the Universidade Estadual de Maringá for routine exams. The isolated yeasts were identified at the genus and species levels through classical methodology. Next, tests of microdilution in broth were carried out to determine the profile of susceptibility of these yeasts towards the hydroalcoholic extract of C. zedoaria, following methodology standardised by the CLSI (2002). A total of 53 yeasts were identified, 49 of them C. albicans, two C. tropicalis and two C. glabrata. These yeasts were inhibited by low concentrations of the extract of C. zedoaria (between 1.95 and 15.63 μg/mL). In addition, 7.82 μg/mL inhibited 90 percent of the yeasts. Our results indicate a potent antifungal action for C. zedoaria and suggest more detailed studies with a view towards the practical application of this phytomedicine in topical pharmaceutical forms for the treatment of oral candidosis or candidiasis.