Stephen M Fitzjohn

Summary

Affiliation: University of Bristol
Country: UK

Publications

  1. ncbi A study of long-term potentiation in transgenic mice over-expressing mutant forms of both amyloid precursor protein and presenilin-1
    Stephen M Fitzjohn
    MRC Centre for Synaptic Plasticity, Department of Anatomy, University of Bristol, UK
    Mol Brain 3:21. 2010
  2. ncbi Disruption of the interaction between myosin VI and SAP97 is associated with a reduction in the number of AMPARs at hippocampal synapses
    Joanne E Nash
    MRC Centre for Synaptic Plasticity, Department of Anatomy, University of Bristol, School of Medical Sciences, Bristol BS8 1TD, UK
    J Neurochem 112:677-90. 2010
  3. ncbi ACET is a highly potent and specific kainate receptor antagonist: characterisation and effects on hippocampal mossy fibre function
    Sheila L Dargan
    MRC Centre for Synaptic Plasticity, University of Bristol, Bristol BS8 1TD, UK
    Neuropharmacology 56:121-30. 2009
  4. ncbi Differential roles of NR2A and NR2B-containing NMDA receptors in LTP and LTD in the CA1 region of two-week old rat hippocampus
    Thomas E Bartlett
    MRC Centre for Synaptic Plasticity, Department of Anatomy, University of Bristol, School of Medical Sciences, University Walk, Bristol, BS8 1TD, UK
    Neuropharmacology 52:60-70. 2007
  5. ncbi The use of the hippocampal slice preparation in the study of Alzheimer's disease
    Stephen M Fitzjohn
    MRC Centre for Synaptic Plasticity, Department of Anatomy, University of Bristol, School of Medical Sciences, University Walk, Bristol, BS8 1TD, UK
    Eur J Pharmacol 585:50-9. 2008
  6. ncbi Differential trafficking of AMPA receptors following activation of NMDA receptors and mGluRs
    Thomas M Sanderson
    MRC Centre for Synaptic Plasticity, School of Physiology and Pharmacology, University of Bristol, Bristol, UK
    Mol Brain 4:30. 2011
  7. ncbi LTP in hippocampal neurons is associated with a CaMKII-mediated increase in GluA1 surface expression
    Vanessa J Appleby
    MRC Centre for Synaptic Plasticity, School of Physiology and Pharmacology, University of Bristol, Bristol, UK
    J Neurochem 116:530-43. 2011
  8. ncbi Impairment in hippocampal long-term potentiation in mice under-expressing the Alzheimer's disease related gene presenilin-1
    Robin A Morton
    MRC Centre for Synaptic Plasticity, Department of Anatomy, University of Bristol, University of Walk, Bristol BS8 1TD, UK
    Neurosci Lett 319:37-40. 2002
  9. ncbi Promiscuous interactions between AMPA-Rs and MAGUKs
    Stephen M Fitzjohn
    MRC Centre for Synaptic Plasticity, Department of Anatomy, University of Bristol, Bristol BS8 1TD, United Kingdom
    Neuron 52:222-4. 2006
  10. ncbi Co-activation of p38 mitogen-activated protein kinase and protein tyrosine phosphatase underlies metabotropic glutamate receptor-dependent long-term depression
    Peter R Moult
    MRC Centre for Synaptic Plasticity, Department of Anatomy, University of Bristol, Bristol BS8 1TD, UK
    J Physiol 586:2499-510. 2008

Collaborators

Detail Information

Publications16

  1. ncbi A study of long-term potentiation in transgenic mice over-expressing mutant forms of both amyloid precursor protein and presenilin-1
    Stephen M Fitzjohn
    MRC Centre for Synaptic Plasticity, Department of Anatomy, University of Bristol, UK
    Mol Brain 3:21. 2010
    ..These data show that a prolonged, substantially elevated level of Abeta are not sufficient to cause deficits in the induction or expression of LTP in the CA1 hippocampal region...
  2. ncbi Disruption of the interaction between myosin VI and SAP97 is associated with a reduction in the number of AMPARs at hippocampal synapses
    Joanne E Nash
    MRC Centre for Synaptic Plasticity, Department of Anatomy, University of Bristol, School of Medical Sciences, Bristol BS8 1TD, UK
    J Neurochem 112:677-90. 2010
    ..e. 'silent' synapses). Together, these results indicate that myosin VI/SAP97 plays an important role in trafficking and activity-dependent recruitment of AMPARs to synapses...
  3. ncbi ACET is a highly potent and specific kainate receptor antagonist: characterisation and effects on hippocampal mossy fibre function
    Sheila L Dargan
    MRC Centre for Synaptic Plasticity, University of Bristol, Bristol BS8 1TD, UK
    Neuropharmacology 56:121-30. 2009
    ..Taken together our data provide further evidence for a physiological role of GluK1-containing KARs in synaptic facilitation and LTP induction at mossy fibre-CA3 synapses...
  4. ncbi Differential roles of NR2A and NR2B-containing NMDA receptors in LTP and LTD in the CA1 region of two-week old rat hippocampus
    Thomas E Bartlett
    MRC Centre for Synaptic Plasticity, Department of Anatomy, University of Bristol, School of Medical Sciences, University Walk, Bristol, BS8 1TD, UK
    Neuropharmacology 52:60-70. 2007
    ..4 microM. The lack of effect of 0.1 microM NVP on LTD contrasts with its marked effect on LTP and raises the possibility that different NVP-sensitive NR2 subunit-containing NMDA receptors are required for LTP and LTD in this preparation...
  5. ncbi The use of the hippocampal slice preparation in the study of Alzheimer's disease
    Stephen M Fitzjohn
    MRC Centre for Synaptic Plasticity, Department of Anatomy, University of Bristol, School of Medical Sciences, University Walk, Bristol, BS8 1TD, UK
    Eur J Pharmacol 585:50-9. 2008
    ..iv) The identification of a mechanism that can account for the cognitive enhancing effects of the NMDA receptor antagonist memantine. (v) The discovery of a role of glycogen synthase kinase-3beta (tau kinase) in synaptic plasticity...
  6. ncbi Differential trafficking of AMPA receptors following activation of NMDA receptors and mGluRs
    Thomas M Sanderson
    MRC Centre for Synaptic Plasticity, School of Physiology and Pharmacology, University of Bristol, Bristol, UK
    Mol Brain 4:30. 2011
    ..The implications of these findings for the initial mechanisms of expression of both NMDA receptor- and mGluR-induced LTD are discussed...
  7. ncbi LTP in hippocampal neurons is associated with a CaMKII-mediated increase in GluA1 surface expression
    Vanessa J Appleby
    MRC Centre for Synaptic Plasticity, School of Physiology and Pharmacology, University of Bristol, Bristol, UK
    J Neurochem 116:530-43. 2011
    ..CaMKII activation is therefore an important factor in the activity-dependent recruitment of native GluA1 subunit-containing alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionate receptors to the cell surface of hippocampal neurons...
  8. ncbi Impairment in hippocampal long-term potentiation in mice under-expressing the Alzheimer's disease related gene presenilin-1
    Robin A Morton
    MRC Centre for Synaptic Plasticity, Department of Anatomy, University of Bristol, University of Walk, Bristol BS8 1TD, UK
    Neurosci Lett 319:37-40. 2002
    ..These results demonstrate that chronic reduction of PS1 activity leads to impaired synaptic plasticity, thus suggesting a role for PS1 in normal cognitive function...
  9. ncbi Promiscuous interactions between AMPA-Rs and MAGUKs
    Stephen M Fitzjohn
    MRC Centre for Synaptic Plasticity, Department of Anatomy, University of Bristol, Bristol BS8 1TD, United Kingdom
    Neuron 52:222-4. 2006
    ..In this issue of Neuron, Elias et al. have elucidated the roles of three MAGUKs, PSD-95, PSD-93, and SAP-102, in the targeting of AMPA receptors to synapses in hippocampal neurons...
  10. ncbi Co-activation of p38 mitogen-activated protein kinase and protein tyrosine phosphatase underlies metabotropic glutamate receptor-dependent long-term depression
    Peter R Moult
    MRC Centre for Synaptic Plasticity, Department of Anatomy, University of Bristol, Bristol BS8 1TD, UK
    J Physiol 586:2499-510. 2008
    ..These data therefore demonstrate that a novel combination of signalling cascades, requiring both activation of p38 MAPK and tyrosine de-phosphorylation, underlies the induction of synaptically induced mGluR-LTD...
  11. ncbi GLUK1 receptor antagonists and hippocampal mossy fiber function
    Robert Nistico
    Department of Anatomy, MRC Centre for Synaptic Plasticity, School of Medical Sciences, University of Bristol, Bristol BS8 1TD, United Kingdom
    Int Rev Neurobiol 85:13-27. 2009
    ..In particular, we show that the GluK1-containing KARs are important for regulating synaptic facilitation and LTP induction at hippocampal mossy fiber synapses...
  12. ncbi Tyrosine phosphatases regulate AMPA receptor trafficking during metabotropic glutamate receptor-mediated long-term depression
    Peter R Moult
    Medical Research Council Centre for Synaptic Plasticity, Department of Anatomy, University of Bristol, School of Medical Sciences, Bristol BS8 1TD, United Kingdom
    J Neurosci 26:2544-54. 2006
    ..Together, these data suggest that activation of postsynaptic PTP results in tyrosine dephosphorylation of AMPARs and their removal from the synapse...
  13. ncbi Metabotropic glutamate receptor-mediated long-term depression: molecular mechanisms
    Clare M Gladding
    MRC Centre for Synaptic Plasticity, Department of Anatomy, University of Bristol, School of Medical Sciences, University Walk, Bristol, BS8 1TD, UK
    Pharmacol Rev 61:395-412. 2009
    ....
  14. ncbi A systematic investigation of the protein kinases involved in NMDA receptor-dependent LTD: evidence for a role of GSK-3 but not other serine/threonine kinases
    Stephane Peineau
    MRC Centre for Synaptic Plasticity, Department of Anatomy, School of Medical Sciences, University Walk, Bristol, BS8 1TD, UK
    Mol Brain 2:22. 2009
    ..Here we provide the first systematic investigation of the involvement of serine/threonine (ser/thr) protein kinases in NMDAR-LTD, using whole-cell recordings from CA1 pyramidal neurons...
  15. ncbi Endocannabinoids: losing inhibition to increase learning capacity?
    Stephen M Fitzjohn
    MRC Centre for Synaptic Plasticity, Department of Anatomy, University of Bristol, Bristol, BS8 1TD, United Kingdom
    Neuron 43:762-4. 2004
    ....
  16. ncbi The Jak/STAT pathway is involved in synaptic plasticity
    Céline S Nicolas
    MRC Centre for Synaptic Plasticity, School of Physiology and Pharmacology, Medical Sciences Building, University Walk, Bristol BS8 1TD, UK
    Neuron 73:374-90. 2012
    ..Therefore, in addition to established roles in cytokine signaling, the JAK/STAT pathway is involved in synaptic plasticity in the brain...