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Skin is the first line of defense and encounters a variety of microbes. Some pathogenic strains are often the cause of a broad range of infections of the skin and other body systems. These conditions can affect people of all ages and may have different causes, including genetic factors, infections, autoimmune reactions, environmental factors, and lifestyle choices.
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Zygomycota, previously classified as a distinct fungal group, are primarily terrestrial, saprophytic molds that play a crucial role as decomposers. Recent phylogenetic studies have revealed that these fungi are now divided into two major clades — Mucoromycota, which includes many symbiotic species, and Zoopagomycota, which primarily consists of parasitic and pathogenic fungi. These groups exhibit distinct ecological roles and reproductive strategies while sharing key structural and...
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Fungal Phylum Microsporidia01:28

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Microsporidia are a group of obligate intracellular fungi that were initially classified as protists but were later reclassified based on phylogenetic, molecular, and structural evidence linking them to the Chytridiomycota. These unicellular, non-motile organisms are highly specialized parasites that infect a wide range of animal hosts, including humans. They have evolved extensive genomic and metabolic reductions, making them highly dependent on their hosts for survival.Morphology and Genomic...
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Phylum Ascomycota, a major division within the subkingdom Dikarya, comprises a diverse range of fungal species, including both unicellular yeasts and filamentous molds such as Aspergillus and Penicillium. These fungi thrive in a variety of habitats, from aquatic ecosystems to terrestrial environments, playing crucial ecological and economic roles.Morphology and ReproductionThe defining characteristic of Ascomycetes, commonly referred to as sac fungi, is the ascus—a sac-like structure that...
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Basidiomycota is a diverse phylum of fungi that includes ecologically significant decomposers such as white rot fungi, symbionts like mycorrhizal fungi, plant pathogens such as rusts and smuts, and edible species like Agaricus bisporus (the common button mushroom). These fungi play crucial roles in nutrient cycling, symbiotic relationships, and even human health. Their defining feature is the basidium, a microscopic club-shaped structure responsible for producing basidiospores.Fruiting Bodies...
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Amphotericin B is a broad-spectrum antifungal agent that exploits structural differences between fungal and mammalian cell membranes. Its amphipathic structure—featuring a hydrophobic polyene-lactone ring and a hydrophilic region containing mycosamine and carboxylic acid groups—enables selective binding to ergosterol, a sterol predominantly found in fungal plasma membranes. This selective interaction underlies the drug’s antifungal activity, although weak binding to...
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Updated: May 2, 2026

The Galleria mellonella Waxworm Infection Model for Disseminated Candidiasis
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Mucormicosis diseminada

Christopher V Radcliffe1, Elizabeth E Tremblay2, Francisco J Machiavello Roman1

  • 1Section of Infectious Diseases, Department of Medicine, Yale School of Medicine, New Haven, CT, USA.

IDCases
|February 20, 2026
PubMed
Resumen

Las nuevas lesiones cutáneas en pacientes con trasplante de células madre requieren una evaluación cuidadosa de la mucormicosis invasiva. El diagnóstico temprano mediante biopsia y el tratamiento con anfotericina B, junto con la reconstitución inmune, son cruciales para mejores resultados.

Palabras clave:
Infección fúngica invasivaMucormicosisTrasplante de células madre

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Área de la Ciencia:

  • Micología
  • Enfermedades Infecciosas
  • Hematología

Sus antecedentes:

  • Los receptores de trasplantes de células madre son inmunocomprometidos y susceptibles a infecciones oportunistas.
  • La mucormicosis invasiva es una infección fúngica rara pero potencialmente mortal.
  • Las manifestaciones cutáneas pueden ser la presentación inicial de la mucormicosis invasiva.

Objetivo del estudio:

  • Destacar la importancia de evaluar las nuevas lesiones cutáneas en receptores de trasplantes de células madre.
  • Enfatizar las estrategias diagnósticas y terapéuticas para la mucormicosis invasiva en esta población.

Principales métodos:

  • Revisión de presentaciones clínicas y enfoques diagnósticos para la mucormicosis invasiva.
  • Discusión de las guías de tratamiento actuales y los factores pronósticos.

Principales resultados:

  • Las nuevas lesiones cutáneas en receptores de trasplantes de células madre requieren un estudio exhaustivo.
  • La biopsia de tejido es esencial para confirmar la mucormicosis invasiva.
  • La anfotericina B es la terapia antifúngica empírica de primera línea recomendada.
  • El manejo exitoso depende del diagnóstico temprano, el tratamiento antifúngico apropiado y la reconstitución inmune.

Conclusiones:

  • La vigilancia de los signos cutáneos de mucormicosis invasiva es fundamental en pacientes con trasplante de células madre.
  • A menudo se requiere un manejo multidisciplinario que involucre a especialistas en enfermedades infecciosas, hematólogos y dermatólogos.
  • La optimización de la inmunidad del huésped es un componente clave para el tratamiento exitoso de la mucormicosis.