• SyncroPatch 384/768i

    APC with highest throughput on the market
  • SyncroPatch 384/768i

    384 cells in parallel => upgradable to 768
  • SyncroPatch 384/768i

    True HTS AND Gigaohm seals
  • SyncroPatch 384/768i

    Analysis Software even more powerful than before
  • SyncroPatch 384/768i

    Assay flexibility via high tech

2020 - Striatal Kir2 K+ channel inhibition mediates the antidyskinetic effects of amantadine

 icon sp96   SyncroPatch 768PE (a predecessor model of the SyncroPatch 768i instrument) publication in The Journal of Clinical Investigation (2020)

Authors:
Shen W., Ren W., Zhai S., Yang B., Vanoye C.G., Mitra A., George AL. Jr., Surmeier D.J.

Journal:

Journal of Clinical Investigation (2020) doi: 10.1172/JCI133398


Abstract: 

Levodopa-induced dyskinesia (LID) poses a significant health care challenge for Parkinson's disease (PD) patients. Amantadine is currently the only drug proven to alleviate LID. Although its efficacy in treating LID is widely assumed to be mediated by blockade of N-methyl-D-aspartate (NMDA) glutamate receptors, our experiments demonstrate that at therapeutically relevant concentrations, amantadine preferentially blocks inward-rectifying K+ channel type 2 (Kir2) channels in striatal spiny projection neurons (SPNs) - not NMDA receptors. In so doing, amantadine enhances dendritic integration of excitatory synaptic potentials in SPNs and enhances - not antagonizes - the induction of long-term potentiation (LTP) at excitatory, axospinous synapses. Taken together, our studies suggest that the alleviation of LID in PD patients is mediated by diminishing the disparity in the excitability of direct- and indirect-pathway SPNs in the on state, rather than by disrupting LTP induction. This insight points to a pharmacological approach that could be used to effectively ameliorate LID and improve the quality of life for PD patients.


Download here.

Back to Overview

SyncroPatch 384i brochure

We use cookies on our website. Some of them are essential for the operation of the site, while others help us to improve this site and the user experience (tracking cookies). You can decide for yourself whether you want to allow cookies or not. Please note that if you reject them, you may not be able to use all the functionalities of the site.