Glutamatergic neurotransmission in aging: a critical perspective

G Segovia, A Porras, A Del Arco, F Mora - Mechanisms of ageing and …, 2001 - Elsevier
The effects of aging on glutamate neurotransmission in the brain is reviewed and evaluated.
Glutamate is the neurotransmitter in most of the excitatory synapses and appears to be …

Detrimental effects of chronic hypothalamic—pituitary—adrenal axis activation: From obesity to memory deficits

J Raber - Molecular neurobiology, 1998 - Springer
Increasing evidence suggests that the detrimental effects of glucocorticoid (GC)
hypersecretion occur by activation of the hypothalamic-pituitary-adrenal (HPA) axis in …

Impaired glutamate transport and glutamate–glutamine cycling: downstream effects of the Huntington mutation

PF Behrens, P Franz, B Woodman, KS Lindenberg… - Brain, 2002 - academic.oup.com
The pathogenesis of Huntington's disease is still not completely understood. Several lines of
evidence from toxic/non‐transgenic animal models of Huntington's disease suggest that …

Age‐related decrease in stimulated glutamate release and vesicular glutamate transporters in APP/PS1 transgenic and wild‐type mice

R Minkeviciene, J Ihalainen, T Malm… - Journal of …, 2008 - Wiley Online Library
We assessed baseline and KCl‐stimulated glutamate release by using microdialysis in
freely moving young adult (7 months) and middle‐aged (17 months) transgenic mice …

Antisense knockdown of the glial glutamate transporter GLT-1, but not the neuronal glutamate transporter EAAC1, exacerbates transient focal cerebral ischemia …

VLR Rao, A Dogan, KG Todd, KK Bowen… - Journal of …, 2001 - Soc Neuroscience
Transient focal cerebral ischemia leads to extensive neuronal damage in cerebral cortex
and striatum. Normal functioning of glutamate transporters clears the synaptically released …

Seizures and neurodegeneration induced by 4-aminopyridine in rat hippocampus in vivo: role of glutamate-and GABA-mediated neurotransmission and of ion …

F Pena, R Tapia - Neuroscience, 2000 - Elsevier
Infusion of the K+ channel blocker 4-aminopyridine in the hippocampus induces the release
of glutamate, as well as seizures and neurodegeneration. Since an imbalance between …

Astrocytes convert network excitation to tonic inhibition of neurons

L Héja, G Nyitrai, O Kékesi, Á Dobolyi, P Szabó, R Fiáth… - BMC biology, 2012 - Springer
Background Glutamate and γ-aminobutyric acid (GABA) transporters play important roles in
balancing excitatory and inhibitory signals in the brain. Increasing evidence suggest that …

NMDA receptor antagonist treatment increases the production of new neurons in the aged rat hippocampus

J Nacher, G Alonso-Llosa, DR Rosell, BS McEwen - Neurobiology of aging, 2003 - Elsevier
The production of new neurons declines during adulthood and persists, although at very low
levels, in the aged hippocampus. Since neurogenesis in young adults has been related to …

Glutamate uptake triggers transporter-mediated GABA release from astrocytes

L Héja, P Barabás, G Nyitrai, KA Kékesi, B Lasztóczi… - PloS one, 2009 - journals.plos.org
Background Glutamate (Glu) and γ-aminobutyric acid (GABA) transporters play important
roles in regulating neuronal activity. Glu is removed from the extracellular space dominantly …

Adrenalectomy increases neurogenesis but not PSA‐NCAM expression in aged dentate gyrus

MF Montaron, KG Petry, JJ Rodriguez… - European Journal of …, 1999 - Wiley Online Library
Ageing is accompanied by a decline in neurogenesis and in polysialylated isoforms of
neural cell adhesion molecule (PSA‐NCAM) expression within the hippocampus and by …