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2018-04-26

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cc by (c) Garcia-Esparcia, Paula et al., 2018
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/123917

Glutamate Transporter Glt1 Expression In Alzheimer Disease And Dementia With Lewy Bodies

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https://doi.org/10.3389/fnagi.2018.00122

Resum

Glutamate transporter solute carrier family 1, member 2 (GLT1/EAAT2), a major modulator of glutamate homeostasis in astrocytes, is assessed in post-mortem human brain samples of frontal cortex area 8 in advanced stages of Alzheimer disease (AD) and terminal stages of dementia with Lewy bodies (DLB) in order to gain understanding of astrogliopathy in diseases manifested by dementia. Glial fibrillary acidic protein (GFAP) mRNA expression is significantly increased in AD but not in DLB, whereas GLT1, vesicular glutamate transporter 1 (vGLUT1) and aldehyde dehydrogenase 1 family member 1 (ALDH1L1) are not modified in AD and DLB when compared with controls. GLT1 protein levels are not altered in AD and DLB but GFAP and ALDH1L1 are significantly increased in AD, and GFAP in DLB. As a result, a non-significant decrease in the ratio between GLT1 and GFAP, and between GLT1 and ALDH1L1, is found in both AD and DLB. Double-labeling immunofluorescence and confocal microscopy revealed no visible reduction of GLT1 immunoreactivity in relation to beta-amyloid plaques in AD. These data suggest a subtle imbalance between GLT1, and GFAP and ALDH1L1 expression, with limited consequences in glutamate transport.

Matèries

Malaltia d'Alzheimer, Àcid glutàmic, Transport biològic

Matèries (anglès)

Alzheimer's disease, Glutamic acid, Biological transport

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Articles publicats en revistes (Institut d'lnvestigació Biomèdica de Bellvitge (IDIBELL))
Articles publicats en revistes (Patologia i Terapèutica Experimental)

Citació

GARCIA ESPARCIA, Paula, DIAZ-LUCENA, Daniela, AINCIBURU, Marina, TORREJÓN-ESCRIBANO, Benjamín, CARMONA MURILLO, Margarita, LLORENS TORRES, Franc, FERRER, Isidro (ferrer abizanda). Glutamate Transporter Glt1 Expression In Alzheimer Disease And Dementia With Lewy Bodies. _Frontiers In Aging Neuroscience_. 2018. Vol. 10, núm. Article 122. [consulta: 23 de gener de 2026]. [Disponible a: https://hdl.handle.net/2445/123917]

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