Smoking in Patients with Parkinson's Disease: preliminary striatal DaT-SPECT findings

Autor: G. Iliceto, Giuseppe Rubini, Maria Superbo, G. Defazio, A. Niccoli Asabella, Daniele Liuzzi, Cristina Ferrari, Angelo Fabio Gigante, Paolo Livrea
Rok vydání: 2015
Předmět:
Zdroj: Acta neurologica Scandinavica. 134(4)
ISSN: 1600-0404
Popis: Objective To assess whether cigarette smoking interferes with dopaminergic transmission in current- and never-smoking patients with Parkinson's disease. Materials and methods Striatal [123I]FP–CIT single photon emission computed tomography was performed in 67 patients with Parkinson's disease (35 women and 32 men aging 60.8 ± 10.1 years and staging 1.76 ± 0.5 on the Hoehn and Yahr scale). At study time, there were 13 current-smokers and 54 never-smokers. Results Current-smokers showed a significantly lower putamen/occipital [123I]FP–CIT ratio and a non-significant trend to a lower caudate/occipital [123I]FP–CIT ratio uptake. Current-smokers were also characterized by a lower off UPDRS-III motor score. A logistic regression analysis adjusted for age, sex, disease duration, Hoehn and Yahr staging, and medication indicated a significant lower [123I]FP–CIT uptake not only in the putamen (odds ratio, 0.1; 95% confidence interval, 0.01 to 0.65; P = 0.02) but also in the caudate (odds ratio, 0.2; 95% confidence interval, 0.04 to 0.71; P = 0.015) as well as a lower UPDRS-III motor score (odds ratio, 0.9; 95% confidence interval, 0.81 to 0.99; P = 0.04) in current-smokers. Conclusions The lower [123I]FP-CIT uptake together with the lower UPDRS-III motor score observed in our current-smokers patients with Parkinson's disease (even taking into account variables that are probably expression of dopaminergic neuron decline and treatment) would support an effect of smoking on dopaminergic synaptic mechanisms.
Databáze: OpenAIRE