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Subclinical Dopaminergic Dysfunction in Asymptomatic Parkinson's Disease Patients' Relatives with a Decreased Sense of Smell
Ann Neurol 50:34-41, Berendse,H.W.,et al, 2001
See this aricle in Pubmed

Article Abstract
An abnormal reduction in striatal dopamine transporter binding was found in 4 out of 25 hyposmic relatives of PD patients, two of whom subsequently developed clinical parkinsonism, and in none of the 23 normosmic relatives. These observatio ns demonstrate that subclinical reductions in dopamine transporter binding can be detected in asymptomatic relatives of sporadic PD patients by means of [123I]B-CIT and SPECT. The results further indicate that olfactory deficits may precede clinical moto r signs in PD.
 
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dopamine
dopaminergic dysfunction
familial
hyposmia
nigrostriatal pathway
Parkinson disease
Parkinson disease,familial
risk factors
single photon emission computed tomography
smell
Smell Identification Test

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