期刊
NEUROLOGY
卷 71, 期 23, 页码 1877-1882出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1212/01.wnl.0000336651.48596.c7
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资金
- Prinses Beatrix Fonds [WAR05-0120]
- Netherlands Organization of Scientific Research [0940-33-021]
- van Alkemade-Keuls Foundation
- Dutch Parkinson's Disease Society
Objective: To evaluate the relation between olfactory impairment (OI) and other impairment domains in Parkinson disease (PD) and the characteristics of OI in patients with certain genotypic characteristics. Methods: In 295 nondemented patients with PD and 150 controls with a similar overall age and sex distribution, olfactory function was evaluated with the identification (ID) and discrimination (DIS) tests of the Sniffin' Sticks. In patients, demographic and clinical characteristics were evaluated, and genetic analyses were performed. Results: Of all patients, 61% had an impaired ID and 43% had an impaired DIS. No significant correlations > 0.4 were found between olfactory scores and other demographic or clinical variables. Age and sex accounted for the 22% explained variance of the ID score regression model, whereas age, sex, and disease duration accounted for the 15% explained variance of the DIS score regression model. Parkin and DJ-1 mutation carriers (homozygous or heterozygous compound, n = 6) had normal ID scores. APOE epsilon 2 or APOE epsilon 4 carriers had no significantly different olfactory scores than noncarriers. The allele distribution of the alpha-synuclein (SNCA)-REP1 polymorphism in groups with an impaired or normal ID or DIS was comparable. Conclusions: Olfactory impairment (OI) in Parkinson disease (PD) may be unrelated to other impairment domains of the disease, which may indicate that olfaction is an independent feature of PD. Parkin and DJ-1 mutation carriers had normal identification scores but the number of mutation carriers is too small to draw conclusions. The APOE genotype (APOE epsilon 2 or APOE epsilon 4 alleles) and SNCA-REP1 polymorphism do not seem to influence olfaction in PD. Neurology (R) 2008; 71: 1877-1882
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