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Different Brain Regions are Infected with Fungi in Alzheimer’s Disease

AutorPisa, Diana ; Alonso, Ruth ; Rábano, Alberto; Rodal, Izaskun; Carrasco Llamas, Luis
Fecha de publicación15-oct-2015
EditorNature Publishing Group
CitaciónScientific Reports 5: 15015 (2015)
ResumenThe possibility that Alzheimer’s disease (AD) has a microbial aetiology has been proposed by several researchers. Here, we provide evidence that tissue from the central nervous system (CNS) of AD patients contain fungal cells and hyphae. Fungal material can be detected both intra- and extracellularly using specific antibodies against several fungi. Different brain regions including external frontal cortex, cerebellar hemisphere, entorhinal cortex/hippocampus and choroid plexus contain fungal material, which is absent in brain tissue from control individuals. Analysis of brain sections from ten additional AD patients reveals that all are infected with fungi. Fungal infection is also observed in blood vessels, which may explain the vascular pathology frequently detected in AD patients. Sequencing of fungal DNA extracted from frozen CNS samples identifies several fungal species. Collectively, our findings provide compelling evidence for the existence of fungal infection in the CNS from AD patients, but not in control individuals.
URIhttp://hdl.handle.net/10261/126847
DOI10.1038/srep15015
ISSN2045-2322
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