Results 11 to 20 of about 21,945 (222)
Differential Antifungal Activity of Human and Cryptococcal Melanins with Structural Discrepancies [PDF]
Frontiers in Microbiology, 2017 Melanin is a pigment found in all biological kingdoms, and plays a key role in protection against ultraviolet radiation, oxidizing agents, and ionizing radiation damage. Melanin exerts an antimicrobial activity against bacteria, fungi, and parasites.
Néstor Correa +12 more
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Modeling Fungal Melanin Buildup: Biomimetic Polymerization of 1,8‐Dihydroxynaphthalene Mapped by Mass Spectrometry [PDF]
, 2017 Due to the emerging biomedical relevance and technological potential of fungal melanins, and prompted by the virtual lack of information about their structural arrangement, an optimized synthetic protocol has been devised for a potential structural model
Martina Maya Cecchini +4 more
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Molecules, 2022 We report herein an optimized procedure for preparation of carboxamides of 5,6-dihydroxyindole-2-carboxylic acid (DHICA), the main biosynthetic precursor of the skin photoprotective agents melanins, to get access to pigments with more favorable ...
Rita Argenziano +3 more
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Fungal melanins differ in planar stacking distances. [PDF]
PLoS ONE, 2012 Melanins are notoriously difficult to study because they are amorphous, insoluble and often associated with other biological materials. Consequently, there is a dearth of structural techniques to study this enigmatic pigment.
Arturo Casadevall +3 more
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Журнал микробиологии, эпидемиологии и иммунобиологии, 2023 Introduction. Influenza A virus is the cause of epidemics and pandemics that severely affect the health and socioeconomic status of the world's population.
Ekaterina I. Filippova +5 more
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Melanin, melanin "ghosts," and melanin composition in Cryptococcus neoformans [PDF]
Infection and Immunity, 1996 Melanin synthesis is associated with virulence for the pathogenic fungus Cryptococcus neoformans. Exposure of nonmelanized C. neoformans 4067 cells to 4 M guanidinium isothiocyanate followed by 6 M HCl at 100 degrees C resulted in complete solubilization of cellular structures. However, exposure of melanized C.
Y, Wang, P, Aisen, A, Casadevall
openaire +2 more sources
Antioxidants, 2020 Eumelanins, the dark variant of skin pigments, are endowed with a remarkable antioxidant activity and well-recognized photoprotective properties that have been ascribed to pigment components derived from the biosynthetic precursor 5,6-dihydroxyindole-2 ...
Davide Liberti +4 more
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Current Issues in Molecular Biology, 2022 RPE65, an abundant membrane-associated protein present in the retinal pigment epithelium (RPE), is a vital retinoid isomerase necessary for regenerating 11-cis-retinaldehyde from all-trans retinol in the visual cycle.
Mirjana Bjeloš +4 more
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Journal of Fungi, 2023 Natural colorants, mostly of plant and fungal origins, offer advantages over chemically synthetic colorants in terms of alleviating environmental pollution and promoting human health.
Lan Lin, Tong Zhang, Jianping Xu
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Melanisation in Boreal Lichens Is Accompanied by Variable Changes in Non-Photochemical Quenching
Plants, 2022 Lichens often grow in microhabitats where they absorb more light than they can use for fixing carbon, and this excess energy can cause the formation of harmful reactive oxygen species (ROS).
Nqobile Truelove Ndhlovu +3 more
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