Epidemiology of Paracoccidioidomycosis

Martínez, Roberto

doi:10.1590/s0036-46652015000700004

Cited by 161 publications

(163 citation statements)

References 75 publications

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“…Paracoccidioides species are endemic to South America, particularly areas of Brazil, Colombia, Venezuela, Argentina, and Uruguay. 28 The annual incidence of infections by dimorphic fungi is likely inaccurate as under-diagnosis and underreporting of infections is common. Furthermore, most infections are self limiting without requiring clinical intervention.…”

Section: Dimorphism and Endemicitymentioning

confidence: 99%

Antifungal therapeutics for dimorphic fungal pathogens

Goughenour

Rappleye

2016

Virulence

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Dimorphic fungi cause several endemic mycoses which range from subclinical respiratory infections to life-threatening systemic disease. Pathogenic-phase cells of Histoplasma, Blastomyces, Paracoccidioides and Coccidioides escape elimination by the innate immune response with control ultimately requiring activation of cell-mediated immunity. Clinical management of disease relies primarily on antifungal compounds; however, dimorphic fungal pathogens create a number of challenges for antifungal drug therapy. In addition to the drug toxicity issues known for current antifungals, barriers to efficient drug treatment of dimorphic fungal infections include natural resistance to the echinocandins, residence of fungal cells within immune cells, the requirement for systemic delivery of drugs, prolonged treatment times, potential for latent infections, and lack of optimized standardized methodology for in vitro testing of drug susceptibilities. This review will highlight recent advances, current therapeutic options, and new compounds on the horizon for treating infections by dimorphic fungal pathogens.

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Section: Dimorphism and Endemicitymentioning

confidence: 99%

Antifungal therapeutics for dimorphic fungal pathogens

Goughenour

Rappleye

2016

Virulence

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“…Some of them had left the endemic area already presenting clinical manifestations of the mycosis, but most of them had shown lesions after five years of permanence in Latin America. 10 As we can see, it is essential that physicians consider PCM as differential diagnosis in individuals coming from endemic areas.…”

Section: Discussionmentioning

confidence: 99%

Sarcoid-like paracoccidioidomycosis: case report

Athayde¹,

Nacif²,

Lupi³

et al. 2017

Medicina (Ribeirão Preto)

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RESUMO:Importância do problema: Paracoccidioidomicose (PCM) é a micose sistêmica mais prevalente em indivíduos imunocompetentes no Brasil, sendo causado pelo fungo dimórfico Paracoccidioides spp. O fungo vive no solo e geralmente sua porta de entrada no paciente ocorre pelos pulmões por inalação de propágulos presentes no ar. Em áreas de maior endemicidade, como no Brasil, a incidência chega a três casos por 100 mil habitantes. As lesões cutâneas na PCM são frequentes. Lesões ulceradas ou ulcerovegetantes são os tipos morfológicos mais comuns, sendo o padrão infiltrativo o segundo mais descrito.A histologia demonstra inflamação granulomatosa na derme. A PCM infiltrativa pode ser facilmente confundida com sarcoidose, visto que ambas possuem similaridades clínicas e histopatológicas.Comentários: Nós descrevemos um caso de PCM cutânea com diagnóstico inicial incorreto de sarcoidose, tanto pelo quadro morfológico, como pelo exame histopatológico semelhante. Exames posteriores revelaram a presença de Paracoccidioides sp na coloração pelo Grocott e na cultura do material para fungos. Os autores acreditam que esse caso possa ajudar médicos a suspeitarem e considerarem PCM no diagnóstico diferencial de lesões cutâneas infiltrativas, especialmente se houver história epidemioló-gica de viagem a área endêmica ou resposta insatisfatória ao tratamento para sarcoidose. Palavras

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“…Paracoccidioidomycosis presents two main clinical forms: a chronic form affecting adult men between 30 and 60 years (most of them being rural workers); and an acute/subacute form that affects mainly children or young adults [201][202][203].…”

Section: Paracoccidioidomycosismentioning

confidence: 99%

Update on Fungal Disease: From Establish Infection to Clinical Manifestation

Melo¹,

Scorzoni²,

Rossi³

et al. 2017

J Biotechnol Biomater

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Fungal diseases have emerged as an important cause of morbidity and mortality, especially among immunocompromised patients. Pathogenic fungi have evolved an array of virulence factors to survive within the host and to outwit immune defenses. Fungi may cause a wide range of diseases in humans that range in extent from superficial to disseminated infections. Generally, the site of infections classifies the type of fungal disease, which can be divided into superficial, cutaneous, subcutaneous and systemic. In addition, the fungal virulence factors determine whether the infection will become established in the host. A primary pathogen may infect an immunologically normal host, whereas, an opportunistic pathogen requires some compromise of the host immune defenses in order for the infection to become established. This article covers the main fungi that are responsible for the increase of the fungal infections.Keywords: Fungal infections; Virulence; Yeast; Opportunistic infections; Endemic mycosis Fungal InfectionsFungal diseases have changed constantly in the last years. The virulence of these microorganisms has been adapted according to the human host, promoting a range of clinical manifestation. Several are the ways by which fungi promote a disease depending on human body part involved by the microorganism and the immunologic system of the host [1].In this review, we discuss the main fungal pathogens responsible for causing several diseases, highlighting on their virulence associate to clinical manifestation and the difficulty to accomplish the treatment. Superficial and cutaneous fungal diseasesSuperficial and cutaneous fungal infections are very common and occur worldwide affecting millions of people, especially immunocompromised patients. The most common types of these infections are dermatophytosis (tinea or ringworm), pityriasis versicolor (formerly tinea versicolor) and candidiasis (moniliasis). These occur by fungal invasion into the skin, keratinized tissues and mucous membranes [2]. Trichosporon and Fusarium species also cause superficial fungal infection, but also may be considered an invasive pathogen that may cause a systemic infection [3,4].Dermatophytosis: Dermatophytes are fungi that invade keratinized structures of humans and animals producing a condition called dermatophytosis or, more commonly, tinea [5,6]. These fungi belong to three main genera Trichophyton, Microsporum and Epidermophyton, of these T. rubrum is the most prevalent species worldwide [7,8]. The mechanisms of pathogenicity of these fungi are not yet well understood. There are several studies focusing on keratinolytic proteases (keratinases) produced by dermatophytes, but it is not known how these fungi regulate the use of these proteases to obtain nutrients from the stratum corneum substrate they invade, and whether there are additional roles of these proteins in adhesion and immunomodulation [9].To establish the infection, the contact of arthroconidia or hyphal fragmens with the host skin is essential. The fungi express spe...

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Epidemiology of Paracoccidioidomycosis

Cited by 161 publications

References 75 publications

Antifungal therapeutics for dimorphic fungal pathogens

Antifungal therapeutics for dimorphic fungal pathogens

Sarcoid-like paracoccidioidomycosis: case report

Update on Fungal Disease: From Establish Infection to Clinical Manifestation

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