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@ARTICLE{Fauser:155689,
author = {Fauser, Mareike and Ricken, Manuel and Markert, Franz and
Weis, Nikolai and Schmitt, Oliver and Gimsa, Jan and Winter,
Christine and Badstübner-Meeske, Kathrin and Storch,
Alexander},
title = {{S}ubthalamic nucleus deep brain stimulation induces
sustained neurorestoration in the mesolimbic dopaminergic
system in a {P}arkinson's disease model.},
journal = {Neurobiology of disease},
volume = {156},
issn = {0969-9961},
address = {Orlando, Fla.},
publisher = {Academic Press},
reportid = {DZNE-2021-00857},
pages = {105404},
year = {2021},
abstract = {Deep brain stimulation (DBS) of the subthalamic nucleus
(STN) is an established therapeutic principle in Parkinson's
disease, but the underlying mechanisms, particularly
mediating non-motor actions, remain largely enigmatic.The
delayed onset of neuropsychiatric actions in conjunction
with first experimental evidence that STN-DBS causes
disease-modifying effects prompted our investigation on how
cellular plasticity in midbrain dopaminergic systems is
affected by STN-DBS.We applied unilateral or bilateral
STN-DBS in two independent cohorts of 6-hydroxydopamine
hemiparkinsonian rats four to eight weeks after dopaminergic
lesioning to allow for the development of a stable
dopaminergic dysfunction prior to DBS electrode
implantation.After 5 weeks of STN-DBS, stimulated animals
had significantly more TH+ dopaminergic neurons and fibres
in both the nigrostriatal and the mesolimbic systems
compared to sham controls with large effect sizes of
gHedges = 1.9-3.4. DBS of the entopeduncular nucleus as
the homologue of the human Globus pallidus internus did not
alter the dopaminergic systems. STN-DBS effects on
mesolimbic dopaminergic neurons were largely confirmed in an
independent animal cohort with unilateral STN stimulation
for 6 weeks or for 3 weeks followed by a 3 weeks washout
period. The latter subgroup even demonstrated persistent
mesolimbic dopaminergic plasticity after washout. Pilot
behavioural testing showed that augmentative dopaminergic
effects on the mesolimbic system by STN-DBS might translate
into improvement of sensorimotor neglect.Our data support
sustained neurorestorative effects of STN-DBS not only in
the nigrostriatal but also in the mesolimbic system as a
potential factor mediating long-latency neuropsychiatric
effects of STN-DBS in Parkinson's disease.},
keywords = {Animals / Corpus Striatum: metabolism / Deep Brain
Stimulation: methods / Dopaminergic Neurons: metabolism /
Female / Limbic System: metabolism / Male / Oxidopamine:
toxicity / Parkinsonian Disorders: chemically induced /
Parkinsonian Disorders: metabolism / Parkinsonian Disorders:
therapy / Rats / Rats, Wistar / Substantia Nigra: metabolism
/ Subthalamic Nucleus: metabolism / Tyrosine
3-Monooxygenase: metabolism / Ventral Tegmental Area:
metabolism / 6-hydroxydopamine (Other) / Deep brain
stimulation (Other) / Dopaminergic neurons (Other) /
Mesolimbic system (Other) / Neurorestoration (Other) /
Nigrostriatal system (Other) / Parkinson's disease (Other) /
Subthalamic nucleus (Other) / Ventral tegmental area
(Other)},
cin = {AG Storch 2 Rostock},
ddc = {570},
cid = {I:(DE-2719)5000014},
pnm = {353 - Clinical and Health Care Research (POF4-353)},
pid = {G:(DE-HGF)POF4-353},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:34044146},
doi = {10.1016/j.nbd.2021.105404},
url = {https://pub.dzne.de/record/155689},
}