Melanins Analysis
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Avaliação dos achados clínicos e histopatológicos nas lesões de poiquilodermia de Civatte antes e após o tratamento com luz intensa pulsada / An evaluation of the clinical and histopathological findings of the lesions of poikiloderma of Civatte before and after treatment with intense pulsed light
A poiquilodermia de Civatte é uma condição caracterizada por hiperpigmentação, telangiectasia e atrofia que acomete predominantemente o pescoço e a face de forma simétrica, poupando a área encoberta pelo mento. A sua ocorrência é associada à predisposição genética, à exposição cumulativa ao sol, ao processo de envelhecimento, à hipersensibi
Publicado em: 2005
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2. Um estudo teorico das propriedades estruturais e oticas de derivados de Eumelanina
Melanins are a class of biological pigments widely spread over in nature from fungi to man. They are roughly classified in three great subclass: eumelanins, pheomelanins and allomelanins. In this work we restrict ourselves to investigate the subclass of eumelanins, the pigment present in most pigmented animal tissues. It is believed that the main biological
Publicado em: 1997
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3. Melanization of Cryptococcus neoformans and Histoplasma capsulatum Reduces Their Susceptibilities to Amphotericin B and Caspofungin
The fungal pathogens Cryptococcus neoformans and Histoplasma capsulatum produce melanin-like pigments in the presence of l-dopa in vitro and during mammalian infection. We investigated whether melanization affected the susceptibilities of the fungi to amphotericin B, caspofungin, fluconazole, itraconazole, or flucytosine (5FC). Using the standard macrodiluti
American Society for Microbiology.
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4. Activation of the Alternative Complement Pathway by Fungal Melanins
Melanins are complex biological pigments formed by the oxidative polymerization of phenolic and/or indolic compounds. These pigments have been implicated in the pathogenesis of some microbial infections, malignancies, degenerative disorders, and autoimmune diseases. Recent studies have demonstrated that melanins have antigenic and anti-inflammatory propertie
American Society for Microbiology.
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5. Melanization of Cryptococcus neoformans in Murine Infection
Cryptococcus neoformans is a fungus that is pathogenic in humans and that can produce melanin in vitro. Melanization is associated with virulence, but there is no evidence that melanin is made during infection. Melanins are difficult to study because they are amorphous and insoluble. Melanin-binding peptides from a phage display library were used to demonstr
American Society for Microbiology.
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6. Detection of Melanin-Like Pigments in the Dimorphic Fungal Pathogen Paracoccidioides brasiliensis In Vitro and during Infection
Melanins are implicated in the pathogenesis of several human diseases, including some microbial infections. In this study, we analyzed whether the conidia and the yeasts of the thermally dimorphic fungal pathogen Paracoccidioides brasiliensis produce melanin or melanin-like compounds in vitro and during infection. Growth of P. brasiliensis mycelia on water a
American Society for Microbiology.