Találati lista | Tudóstér

001-es BibID:	BIBFORM016360
Első szerző:	Kirvell, S. L.
Cím:	Vesicular glutamate transporter and cognition in stroke : a case-control autopsy study / S. L. Kirvell, M. S. Elliott, R. N. Kalaria, T. Hortobágyi, C. G. Ballard, P. T. Francis
Dátum:	2010
ISSN:	0028-3878
Megjegyzések:	OBJECTIVES: Vascular dementia (VaD) accounts for approximately 15%-20% of all dementias, but the relationship of progressive cognitive impairment to neurochemical changes is poorly understood. We have therefore investigated glutamatergic synaptic markers in VaD. METHODS: We used homogenates prepared from gray matter from 2 neocortical regions (Brodmann area [BA] 9 and BA 20) and Western blotting to determine the concentrations of key components of the glutamatergic neurotransmitter system, vesicular glutamate transporter 1 (VGLUT1) and excitatory amino acid transporter EAAT2 (GLT-1), and the ubiquitous synaptic protein, synaptophysin, in 73 individuals-48 patients with cerebrovascular disease with and without dementia, 10 patients with AD, and 15 controls-in a case-control design. RESULTS: VGLUT1 concentrations in BA 20 and BA 9 were correlated with CAMCOG total (Rs 0.525, p = 0.018, n = 20; Rs 0.560, p = 0.002, n = 27) and CAMCOG memory scores (Rs 0.616, p = 0.004, n = 20; Rs 0.675, p = 0.000, n = 27). VGLUT1 concentration in BA 9 differed between the different dementia groups and the stroke no dementia group (1-way analysis of variance F = 6.69, p = 0.001 and Bonferroni p < 0.01 in each case), with subjects with stroke who did not develop dementia exhibiting the highest mean value for VGLUT1. CONCLUSIONS: These data suggest that loss of glutamatergic synapses is a feature of VaD and Alzheimer disease but the preservation of synapses, in particular glutamatergic synapses, in the frontal cortex against the temporal cortex plays a role in sustaining cognition and protecting against dementia following a stroke.
Tárgyszavak:	Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban
Megjelenés:	Neurology. - 75 : 20 (2010), p. 1803-1809. -
További szerzők:	Elliott, Mark S. J. Kalaria, Rajesh N. Hortobágyi Tibor (1965-) (patológus) Ballard, Clive G. Francis, Paul T.
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat Szerző által megadott URL DOI
Borító:
Saját polcon: