Blink amplitude but not saccadic hypometria indicates carriers of Parkin mutations

被引:7
作者
Helmchen, C.
Schwekendiek, A.
Pramstaller, P. P.
Hedrich, K.
Klein, C.
Rambold, H.
机构
[1] Med Univ Lubeck, Dept Neurol, D-23538 Lubeck, Germany
[2] Med Univ Lubeck, Dept Human Genet, D-23538 Lubeck, Germany
[3] Gen Reg Hosp Bolzano, Dept Neurol, Bolzano, Italy
[4] EURAC Res, Inst Med Genet, Bolzano, Italy
关键词
Parkinson's disease; Parkin; saccades; blink reflex;
D O I
10.1007/s00415-006-0168-1
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
We investigated saccades, eyelid blinks, and their interaction in symptomatic (n=22) and asymptomatic (n=31) subjects with (n=19) and without (n=34) Parkin mutations. Saccadic hypometria was correlated with clinical symptoms of Parkinson's disease, irrespective of mutational status. By contrast, blink amplitude was increased in carriers of Parkin mutations independent of their clinical status. Saccade main sequence and blink effects on saccades were normal. We propose that increased blink amplitude may serve as an endophenotype in carriers of Parkin mutations.
引用
收藏
页码:1071 / 1075
页数:5
相关论文
共 23 条
[1]   PET in LRRK2 mutations: comparison to sporadic Parkinson's disease and evidence for presymptomatic compensation [J].
Adams, JR ;
van Netten, H ;
Schulzer, M ;
Mak, E ;
Mckenzie, J ;
Strongosky, A ;
Sossi, V ;
Ruth, TJ ;
Lee, CS ;
Farrer, M ;
Gasser, T ;
Uitti, RJ ;
Calne, DB ;
Wszolek, ZK ;
Stoessl, AJ .
BRAIN, 2005, 128 :2777-2785
[2]  
Basso MA, 1996, J NEUROSCI, V16, P7318
[3]   An explanation for reflex blink hyperexcitability in Parkinson's disease .1. Superior colliculus [J].
Basso, MA ;
Powers, AS ;
Evinger, C .
JOURNAL OF NEUROSCIENCE, 1996, 16 (22) :7308-7317
[4]  
Binkofski F, 2005, NEUROLOGY, V64, pA149
[5]   Orbital position dependency is different for the gain of externally and internally triggered saccades [J].
Eggert, T ;
Mezger, F ;
Robinson, F ;
Straube, A .
NEUROREPORT, 1999, 10 (12) :2665-2670
[6]   BLINK REFLEX IN HUNTINGTONS-CHOREA AND PARKINSONS-DISEASE [J].
ESTEBAN, A ;
GIMENEZROLDAN, S .
ACTA NEUROLOGICA SCANDINAVICA, 1975, 52 (02) :145-157
[7]   EARLY DETECTION OF HUNTINGTONS-DISEASE - BLINK REFLEX AND LEVODOPA LOAD IN PRESYMPTOMATIC AND INCIPIENT SUBJECTS [J].
ESTEBAN, A ;
MATEO, D ;
GIMENEZROLDAN, S .
JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY, 1981, 44 (01) :43-48
[8]  
GUITTON D, 1991, INVEST OPHTH VIS SCI, V32, P3298
[9]   Recovery of saccadic dysmetria following localized lesions in monkey superior colliculus [J].
Hanes, DP ;
Smith, MK ;
Optican, LM ;
Wurtz, RH .
EXPERIMENTAL BRAIN RESEARCH, 2005, 160 (03) :312-325
[10]   The importance of gene dosage studies:: mutational analysis of the parkin gene in early-onset parkinsonism [J].
Hedrich, K ;
Kann, M ;
Lanthaler, AJ ;
Dalski, A ;
Eskelson, C ;
Landt, F ;
Schwinger, E ;
Vieregge, P ;
Lang, AE ;
Breakefield, XO ;
Ozelius, LJ ;
Pramstaller, PP ;
Klein, C .
HUMAN MOLECULAR GENETICS, 2001, 10 (16) :1649-1656