Abnormal premotor–motor interaction in heterozygous Parkin- and Pink1 mutation carriers
Abnormal premotor–motor interaction in heterozygous Parkin- and Pink1 mutation carriers
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Parkin 和 Pink1 突变携带者杂合子运动前相互作用异常
DOI:
10.1016/j.clinph.2016.10.007
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发表时间:
2017
影响因子:
4.7
通讯作者:
Pramstaller P
中科院分区:
文献类型:
--
作者:
Weissbach A;Bäumer T;Pramstaller P
ObjectivesMutations in theParkinandPINK1gene account for the majority of autosomal recessive early-onset Parkinson cases. There is increasing evidence that clinically asymptomatic subjects with single heterozygous mutations have a latent nigrostriatal dopaminergic deficit and could be taken asin vivomodel of pre-symptomatic phase of Parkinsonism.MethodsWe charted premotor–motor excitability changes as compensatory mechanisms for subcortical dopamine depletions using transcranial magnetic stimulation by applying magnetic resonance-navigated premotor–motor cortex conditioning in 15 asymptomatic, heterozygousParkinandPINK1mutation carriers (2 female; mean age 53 ± 8 years) and 16 age- and sex-matched controls (5 female; mean age 57 ± 9 years). Participants were examined at baseline and after acutel-dopa challenge.ResultsThere werel-dopa and group specific effects during premotor–motor conditioning at an interstimulus interval of 6 ms indicating a normalisation of premotor–motor interactions in heterozygousParkinandPINK1mutation carriers afterl-dopa intake. Non-physiologically high conditioned MEP amplitudes at this interval in mutation carriers decreased afterl-dopa intake but increased in controls.ConclusionPremotor–motor excitability changes are part of the cortical reorganization in asymptomatic heterozygousParkin- andPINK1mutation carriers.SignificanceThese subjects offer opportunities to delineate motor network adaptation in pre-symptomatic Parkinsonism.
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影响因子:
14.5
作者:
Buhmann, C;Binkofski, F;Siebner, HR
通讯作者:
Siebner, HR
影响因子:
2
作者:
S. Zittel;C. Heinbokel;J. Vegt;E. Niessen;C. Buhmann;C. Gerloff;H. Siebner;A. Münchau;T. Bäumer
通讯作者:
T. Bäumer
影响因子:
11
作者:
Hagenah, J. M.;Becker, B.;Seidel, G.
通讯作者:
Seidel, G.
影响因子:
9.9
作者:
T. Bäumer;P. Pramstaller;H. Siebner;S. Schippling;J. Hagenah;M. Peller;C. Gerloff;C. Klein;A. Münchau
通讯作者:
A. Münchau
DOI:
10.1093/brain/awu381
发表时间:
2015-03
期刊:
Brain : a journal of neurology
影响因子:
--
作者:
Michely J;Volz LJ;Barbe MT;Hoffstaedter F;Viswanathan S;Timmermann L;Eickhoff SB;Fink GR;Grefkes C
通讯作者:
Grefkes C