Zinc and cortical plasticity

  title={Zinc and cortical plasticity},
  author={Amy S. Nakashima and Richard H. Dyck},
  journal={Brain Research Reviews},

Zinc: The brain's dark horse

A greater understanding of zinc's role in the central nervous system may allow for the development of therapeutic approaches where aberrant metal homeostasis is implicated in disease pathogenesis, and in fact its role may be underappreciated.

Zinc in the Brain: Friend or Foe?

Zinc is a biological component that plays an important physiological role in the central nervous system, but a pathophysiological role in major neurological disorders, and this review focuses on the multiple roles of zinc in the brain.

Zinc Signal in Brain Functions

The homeostasis of synaptic Zn2+ signal is critical in both functional and pathological aspects and the physiological significance of intracellular Zn 2+ signaling in brain functions, especially in cognition is summarized.

The Neurophysiology and Pathology of Brain Zinc

The most recent findings that link zinc to synaptic function as well as the injurious effects of zinc dyshomeostasis within the context of neuronal death associated with major human neurological disorders, including stroke, epilepsy, and Alzheimer's disease are reviewed.

Examination of Zinc in the Circadian System

Melanopsin-containing retinal ganglion cells in the mouse retina were found to colocalize ZnT3, indicating that they can release zinc at their synaptic targets and highlight the presence of zinc in areas critical for circadian functioning but have yet to identify a role for zinc in these areas.

The zinc paradigm for metalloneurochemistry.

Development and improvement of methods which allow for precise detection and immediate manipulation of zinc ions in neuronal cells and in brain slices will be critical in uncovering the synaptic action of zinc and, more broadly, the bioinorganic chemistry of cognition.

AMPA receptor inhibition by synaptically released zinc

Evidence that endogenous zinc, released by single presynaptic action potentials, inhibits synaptic AMPA currents in the dorsal cochlear nucleus (DCN) and hippocampus is provided, establishing zinc as an activity-dependent, endogenous modulator of AMPARs that tunes fast excitatory neurotransmission and plasticity in glutamatergic synapses.

Dynamic action of neurometals at the synapse.

The action of metals in synaptic neurotransmission focused on calcium signaling at glutamatergic synapses is summarized to highlight the importance of zinc signaling in the intracellular compartment.

Zinc signaling in the hippocampus and its relation to pathogenesis of depression.

  • A. Takeda
  • Biology
    Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements
  • 2012

Cognitive decline due to excess synaptic Zn2+ signaling in the hippocampus

An overview of the ``Hypothesis and Theory'' of Zn2+-mediated modification of cognitive activity is provided, which indicates an increase in HPA axis activity may induce excess intracellular Zn 2+ signaling in the hippocampus, followed by hippocampus-dependent memory deficit.



Distribution of zincergic neurons in the mouse forebrain

Synaptically released zinc is thought to play an important role in neuronal signaling by modulating excitatory and inhibitory receptors and intracellular signaling proteins. Consequently, neurons

A physiological role for endogenous zinc in rat hippocampal synaptic neurotransmission

The study implies that zinc modulates synaptic transmission in the immature hippocampus, a finding that may have implications for understanding benign postnatal seizures in young children suffering with acute zinc deficiency18.

Importance of zinc in the central nervous system: the zinc-containing neuron.

The present review outlines the methods used to discover, define and describe zinc-containing neurons; the neuroarchitecture and synaptology of zinc- containing neural circuits; the physiology of regulated vesicular zinc release; the "life cycle" and molecular biology of vesicle zinc; the importance of synaptically released zinc in the normal and pathological processes of the cerebral cortex; and the role of specific and nonspecific stressors in the release of zinc.

Neurobiology of zinc and zinc-containing neurons.

Expression and regulation of brain metallothionein

Zinc-containing neurons.

Zinc ions are potent modulators of amino acid receptors [especially the N-methyl-D-aspartate (NMDA) receptor] and corelease of zinc along with glutamate would provide a mechanism for modulating postsynaptic excitability levels.

Do We Need Zinc to Think?

Chelatable Zn2+, which is found in the synaptic vesicles of certain glutamatergic neurons in several regions of the forebrain, is released during neuronal activity and is likely able to modulate synaptic transmission.