Roles for the cyclooxygenases (especially COX 2) in learning and memory, as well as in synaptic plasticity.

A pair of papers which focus on the role the inducible inflammatory regulating enzyme COX2 plays in learning and memory. These papers proceeded from earlier work of ours, showing that the bacterial endotoxin lipopolysaccharide (LPS) blocked synaptic plasticity but not synaptic transmission CA1-subiculum pathway in vivo. LPS induces the expression of COX2, amongst other things, and it seemed reasonable to… Read More

Age-related declines in delayed non-match-to-sample performance (DNMS) are reversed by the novel 5HT6 receptor antagonist SB742457.

Age-related declines in delayed non-match-to-sample performance (DNMS) are reversed by the novel 5HT6 receptor antagonist SB742457 (available here) Callaghan CK, Hok V, Della-Chiesa A, Virley DJ, Upton N, O’Mara SM. Trinity College Institute of Neuroscience, Trinity College, Dublin 2, Ireland. callaghc@tcd.ie Abstract Alterations in synaptic plasticity and neurocognitive function with age have been well documented in the literature. These changes are… Read More

CREB selectively controls learning-induced structural remodeling of neurons.

Learn Mem. 2012 Jul 18;19(8):330-6. doi: 10.1101/lm.025817.112. CREB selectively controls learning-induced structural remodeling of neurons. [download] Middei S, Spalloni A, Longone P, Pittenger C, O’Mara SM, Marie H, Ammassari-Teule M. Source CNR-National Research Council, Rome 00143, Italy. s.middei@hsantalucia.it Abstract The modulation of synaptic strength associated with learning is post-synaptically regulated by changes in density and shape of dendritic spines. The transcription factor… Read More