Short Latency Afferent Inhibition in Parkinson's Disease Patients with Dementia
Identifieur interne : 000F84 ( Main/Exploration ); précédent : 000F83; suivant : 000F85Short Latency Afferent Inhibition in Parkinson's Disease Patients with Dementia
Auteurs : Ozlem Celebi [Turquie] ; Ca Gbreve N Mesut Temucin [Turquie] ; Bulent Elibol [Turquie] ; Esen Saka [Turquie]Source :
- Movement disorders [ 0885-3185 ] ; 2012.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Homme.
English descriptors
Abstract
Background: Cortical cholinergic deficiency occurs in Parkinson's disease (PD) and is more severe in PD dementia (PDD). Short-latency afferent inhibition (SAI) can be used as an in vivo test for the evaluation of the cholinergic circuit in the cerebral motor cortex. Methods: SAI and neuropsychological profile were studied in nondemented PD, PDD, Alzheimer's disease (AD) patients, and age-matched controls. Results: SAI was significantly impaired in AD cases (94.7 ± 6.2 versus 55.5 ± 4.0; P < 0.0001). In PD patients, it was not different from controls (61.4 ± 5.8 versus 55.5 ± 4.0; P = 0.412). PDD cases demonstrated a significant impairment in SAI (91.4 ± 5.2 versus 55.5 ± 4.0; P < 0.0001). A high correlation was found between SAI and Mini-Mental State Examination (r = -0.68; P < 0.0001). Conclusions: These findings add further evidence that differential cholinergic deficiency occurs in PD and PDD. SAI can be a neurophysiological correlate of PDD.
Affiliations:
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Le document en format XML
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<front><div type="abstract" xml:lang="en">Background: Cortical cholinergic deficiency occurs in Parkinson's disease (PD) and is more severe in PD dementia (PDD). Short-latency afferent inhibition (SAI) can be used as an in vivo test for the evaluation of the cholinergic circuit in the cerebral motor cortex. Methods: SAI and neuropsychological profile were studied in nondemented PD, PDD, Alzheimer's disease (AD) patients, and age-matched controls. Results: SAI was significantly impaired in AD cases (94.7 ± 6.2 versus 55.5 ± 4.0; P < 0.0001). In PD patients, it was not different from controls (61.4 ± 5.8 versus 55.5 ± 4.0; P = 0.412). PDD cases demonstrated a significant impairment in SAI (91.4 ± 5.2 versus 55.5 ± 4.0; P < 0.0001). A high correlation was found between SAI and Mini-Mental State Examination (r = -0.68; P < 0.0001). Conclusions: These findings add further evidence that differential cholinergic deficiency occurs in PD and PDD. SAI can be a neurophysiological correlate of PDD.</div>
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