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Incidence and anatomic localization of oral candidiasis in patients with AIDS hospitalized in a public hospital in Belo Horizonte, MG, Brazil
Gableri, Ilanna G.;Barbosa, Anne C.;Velela, Raquel R.;Lyon, Sandra;Rosa, Carlos A.;
Journal of Applied Oral Science , 2008, DOI: 10.1590/S1678-77572008000400004
Abstract: the objective of this study was to evaluate the incidence, anatomic localization and yeast species isolated from each clinical type of oral candidiasis. the clinical samples were obtained from 67 patients with aids with cd4 cell counts below 200 cells/mm3 and hospitalized in a public hospital (eduardo de menezes hospital) in the city of belo horizonte, mg, brazil. yeasts were isolated using chromagar? candida. the results show that 50.7% of these patients had oral candidiasis. the pseudomembranous form was the most frequent clinical manifestation of oral candidiasis, followed by the erythematous and angular cheilite forms. the most common site of these clinical forms of oral candidiasis was the tongue. candida albicans was the most common yeast species isolated from the lesions. however, other species were also found to be associated with these forms of oral candidiasis.
Identificación de especies de Candida en un grupo de pacientes con Candidiasis Atrófica Crónica
Lazarde,L, J; Pacheco,A;
Acta Odontológica Venezolana , 2001,
Abstract: a group of denture wearing patients with erythematous candidiasis was investigated by age and sex, clinical symptoms and signs of the disease were recorded.there were 39 women and 1 man, and ranged in age from 51 a 60 years old. six species of candida were isolated, with c. albicans as the dominant species (72.5%).
Algunas consideraciones sobre Candida Albicans como agente etiológico de candidiasis bucal
Acta Odontológica Venezolana , 2002,
Abstract: En el presente artículo, se describen los principales aspectos referentes a Candida albicans, microorganismo mayormente implicado en la Candidiasis Bucal, entre los cuales se destacan: Historia, taxonomía, características morfológicas y fisiológicas (haciendo especial énfasis en la ultraestructura del hongo), características de cultivo, algunas consideraciones ecológicas, así como una serie de factores específicos que afectan en la distribución de Candida en la cavidad bucal. In this article, we make reference about some considerations of Candida albicans, the most important aetiological agent implicated in Oral Candidiosis refering to: History, taxonomy, morphological and physiological characteristics (making special emphasis in ultrastructure), culture characteristics, ecological aspects and specific factors afected Candida distribution within the oral cavity.
Candidiasis Eritematosa de la cavidad bucal. Reporte de un caso y revisión de la literatura
L J Lazarde,B I Avilán
Acta Odontológica Venezolana , 2003,
Abstract: Resumen La Candidiasis bucal, causada principalmente por Candida albicans, es de gran importancia estomatológica, por su frecuencia y variedad clínica. Estas infecciones se observan frecuentemente en personas con distintos tipos de factores predisponentes. Las formas clínicas de Candidiasis bucal es variable y se han usado diferentes clasificaciones. Se presenta un caso clínico de paciente femenina, con lesión eritematosa en el dorso de la lengua y paladar, la cual refería dolor y ardor bucal. Se le realizó toma de muestra de las lesiones para ser cultivadas y posteriormente se identificó la presencia de C. albicans, lo que confirmó el diagnóstico clínico de Candidiasis Eritematosa. Se le realizó terapia antimicótica (Nistatina), el control a las dos semanas reveló mejoría de la lesión y luego a las cuatro semanas se pudo evidenciar total remisión de la lesión así como de la sintomatología. Abstract Oral Candidosis, caused maily by Candida albicans,has an important stomatological repercussion, because of his frequency and clinical variety. These infections are frequently observed in persons with different types of predisposing factors. The clinical characteristics of oral candidosis is variabke, and different classifications have been used.this is a case report,female of sexty-five yeasr old with red lesion on the dorsal tongue and hard palate, patient may complain of a burning sensation. Epithelial smears and imprint cultures were obtained and subjeted to species identificacion of Candida albicans, diagnostic Erythematous Candidiasis were confirmed.
Effect of prolonged HAART on oral colonization with Candida and candidiasis
Yun-Liang Yang, Hsiu-Jung Lo, Chien-Ching Hung, Yichun Li
BMC Infectious Diseases , 2006, DOI: 10.1186/1471-2334-6-8
Abstract: A prospective, longitudinal follow-up study in HIV-infected patients receiving HAART.The mean CD4+ count increased from 232.5 to 316 cells/mm3 and the proportion of patients whose CD4+ count less than 200 cells/mm3 decreased from 50.0% to 28.9% (p = 0.0003) in patients receiving HAART for at least 2 years. The prevalence of oral candidiasis decreased from 10.6% to 2.1% (p = 0.004). The decrease in Candida colonization was less impressive, falling from 57.8% to 46.5 % (p = 0.06). Of the 142 patients enrolled in at least two surveys, 48 (33.8%) remained colonized with Candida and 42 (29.6%) remained negative. In the remaining 52 patients, 34 switched from culture positive to negative, and an increase in CD4+ lymphocytes was noted in 91.2% of them. Among the 18 patients who switched from culture negative to positive, 61.1% also demonstrated an increase in CD4+ lymphocyte count (p = 0.01).These findings indicate that HAART is highly effective in decreasing oral candidiasis in association with a rise in CD4+ lymphocyte counts, but only marginally effective in eliminating Candida from the oropharynx.Mucosal candidiasis, including oropharyngeal, esophageal, and vaginal candidiasis, is common among human immunodeficiency virus (HIV)-infected patients [2,7]. Oropharyngeal candidiasis may occur in up to 90% of HIV-infected patients during the course of the disease [9]. Progressive cell-mediated immunodeficiency with decrease of CD4+ lymphocyte count to ≤ 200 cells/mm3 is a major risk factor for colonization with Candida species and development of candidiasis [1,3].The introduction of highly active antiretroviral therapy (HAART) has led to a marked decrease in mortality and morbidity [6,8] as well as the incidence of opportunistic infections among HIV-infected patients [4]. It is less clear whether immune reconstitution protects HIV-infected patients from colonization with Candida species. These three prospective longitudinal follow-up surveys (in 1999, 2001, and 2002) were de
Algunas consideraciones sobre Candida Albicans como agente etiológico de candidiasis bucal
Acta Odontológica Venezolana , 2002,
Abstract: in this article, we make reference about some considerations of candida albicans, the most important aetiological agent implicated in oral candidiosis refering to: history, taxonomy, morphological and physiological characteristics (making special emphasis in ultrastructure), culture characteristics, ecological aspects and specific factors afected candida distribution within the oral cavity.
Susceptibilidad antifúngica de Candida albicans recuperadas de pacientes con SIDA y candidiasis orofaríngea y esofágica: Experiencia con Etest Antifungal susceptibility testing of Candida albicans isolates from AIDS patients with oropharyngeal and esophageal candidiasis: Experience with Etest  [cached]
Cecilia Tapia P,Patricia González A,Angélica Pereira A,Jorge Pérez G
Revista médica de Chile , 2003,
Abstract: Background: Oropharyngeal candidiasis (OPC) and esophageal candidiasis (EPC) are frequent complications in AIDS patients. The use of Fluconazole, an effective and a low toxicity drug, has been associated to the emergency of secondary resistant strains. For this reason, in vitro antifungal susceptibility tests are necessary to predict a therapeutic failure. Etest is an easy to perform alternative test, that has showed a good agreement with the broth microdilution reference method (NCCLS, document M27-A). Aim: To measure the susceptibility of C. albicans isolates from AIDS patients complicated with OPC and EPC to Amphotericin B (AmB) and Fluconazole (Flu) using Etest . Material and methods: Twenty strains from 20 AIDS patients were studied. AmB was tested in RPMI 1640 agar and Flu in Casitone agar. Results: All studied strains showed minimal inhibitory concentrations (MICs) <1 mg/mL for AmB. A highly resistant strain to Flu (>256 mg/mL) was isolated from a patient previously treated with Flu. Conclusions: In AIDS patients with OPC and EPC, the susceptibility to Flu of the isolates should be screened, to detect resistant strains. Etest ; is a reliable alternative in these cases, for laboratories that cannot use the reference method (Rev Méd Chile 2003; 131: 515-19).
Candidiasis Eritematosa de la cavidad bucal. Reporte de un caso y revisión de la literatura
Lazarde,L J; Avilán,B I;
Acta Odontológica Venezolana , 2003,
Abstract: abstract oral candidosis, caused maily by candida albicans,has an important stomatological repercussion, because of his frequency and clinical variety. these infections are frequently observed in persons with different types of predisposing factors. the clinical characteristics of oral candidosis is variabke, and different classifications have been used.this is a case report,female of sexty-five yeasr old with red lesion on the dorsal tongue and hard palate, patient may complain of a burning sensation. epithelial smears and imprint cultures were obtained and subjeted to species identificacion of candida albicans, diagnostic erythematous candidiasis were confirmed.
Candida y candidiasis invasora: un reto continuo para su diagnóstico temprano Candida and candidiasis: the challenge continues for an early diagnosis  [cached]
Catalina de Bedout,Beatriz L Gómez
Infectio , 2010,
Abstract: La candidiasis invasora representa el 75% de las infecciones por hongos en pacientes hospitalizados, con una mortalidad que alcanza cifras hasta del 78%. La frecuencia de estas infecciones varía de acuerdo con el servicio de hospitalización y los factores de riesgo de los pacientes. Paralelamente, se han venido observando cambios en la epidemiología de las especies de Candida, variaciones en su prevalencia y en la resistencia a los antimicóticos según su localización geográfica. Por todo lo anterior, es imperativo establecer un diagnóstico temprano que lleve a la identificación correcta de la especie implicada de manera que se instaure un pronto y adecuado tratamiento antimicótico. El diagnóstico de la candidiasis invasora continúa siendo un reto, en el cual combinar los diferentes métodos diagnósticos, los microbiológicos, los inmunológicos y los nuevos moleculares, aún en desarrollo y validación, es la mejor estrategia para lograr un dictamen oportuno. En esta revisión se describen los métodos disponibles, sus limitaciones y las perspectivas de los que están en etapa de desarrollo y validación. En la última década se cuenta con métodos de referencia para la medición de susceptibilidad in vitro a los antimicóticos, lo cual ha permitido conocer los perfiles de sensibilidad de las diferentes especies de Candida a escala mundial y local. Invasive candidiasis represents 75% of fungal infections in hospitalized patients, with reported mortalities up to 78%. The frequency of these infections varies according to the hospital services and the risk factors of the patients. In parallel, changes in the epidemiology of the Candida species have been observed, in particular variations in their prevalence and in their resistance to antifungals according to geographic location. For these reasons it is crucial to establish an early diagnosis that identifies the pathogen to the species level in order to allow an appropriate therapeutic decision. The diagnosis of invasive candidiasis continues to be a challenge, where combining the different available methods (microbiologic, immunologic and new molecular approaches) is the best strategy to achieve a prompt and accurate diagnosis. We review the currently available assays for conventional and molecular diagnosis, their limitations, and the perspectives for assays that are now in development and validation. In the last decade, well established reference methods have become available for testing antifungal susceptibility and this has allowed worldwide and regional sensitivity profiles to be established for the different Cand
Oral candidiasis-adhesion of non-albicans Candida species  [PDF]
Bokor-Brati? Marija B.
Zbornik Matice Srpske za Prirodne Nauke , 2008, DOI: 10.2298/zmspn0814069b
Abstract: Oral candidiasis is an opportunistic infection caused primarily by Candida albicans. However, in recent years, species of non-albicans Candida have been implicated more frequently in mucosal infection. Candida species usually reside as commensal organisms and are part of normal oral microflora. Determining exactly how transformation from commensal to pathogen takes place and how it can be prevented is continuous challenge for clinical doctors. Candidal adherence to mucosal surfaces is considered as a critical initial step in the pathogenesis of oral candidiasis. Acrylic dentures, acting as reservoirs, play an important role in increasing the risk from Candida colonisation. Thus, this review discusses what is currently known about the adhesion of non-albicans Candida species of oral origin to buccal epithelial cells and denture acrylics.
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