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Erschienen in: Journal of Neural Transmission 10/2016

26.08.2016 | Psychiatry and Preclinical Psychiatric Studies - Review Article

Impaired synaptic plasticity in RASopathies: a mini-review

verfasst von: Florian Mainberger, Susanne Langer, Volker Mall, Nikolai H. Jung

Erschienen in: Journal of Neural Transmission | Ausgabe 10/2016

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Abstract

Synaptic plasticity in the form of long-term potentiation (LTP) and long-term depression (LTD) is considered to be the neurophysiological correlate of learning and memory. Impairments are discussed to be one of the underlying pathophysiological mechanisms of developmental disorders. In so-called RASopathies [e.g., neurofibromatosis 1 (NF1)], neurocognitive impairments are frequent and are affected by components of the RAS pathway which lead to impairments in synaptic plasticity. Transcranial magnetic stimulation (TMS) provides a non-invasive method to investigate synaptic plasticity in humans. Here, we review studies using TMS to evaluate synaptic plasticity in patients with RASopathies. Patients with NF1 and Noonan syndrome (NS) showed reduced cortical LTP-like synaptic plasticity. In contrast, increased LTP-like synaptic plasticity has been shown in Costello syndrome. Notably, lovastatin normalized impaired LTP-like plasticity and increased intracortical inhibition in patients with NF1. TMS has been shown to be a safe and efficient method to investigate synaptic plasticity and intracortical inhibition in patients with RASopathies. Deeper insights in impairments of synaptic plasticity in RASopathies could help to develop new options for the therapy of learning deficits in these patients.
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Metadaten
Titel
Impaired synaptic plasticity in RASopathies: a mini-review
verfasst von
Florian Mainberger
Susanne Langer
Volker Mall
Nikolai H. Jung
Publikationsdatum
26.08.2016
Verlag
Springer Vienna
Erschienen in
Journal of Neural Transmission / Ausgabe 10/2016
Print ISSN: 0300-9564
Elektronische ISSN: 1435-1463
DOI
https://doi.org/10.1007/s00702-016-1609-3

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