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home:diseases:parkinsons [12.22.2018] – [Further reading] sallieq | home:diseases:parkinsons [01.10.2019] – [Gastrointestinal inflammation] sallieq | ||
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Clustering of Parkinson disease: shared cause or coincidence? | Clustering of Parkinson disease: shared cause or coincidence? | ||
- | Kumar A, Calne SM, Schulzer M, Mak E, Wszolek Z, Van Netten C, Tsui JK, Stoessl AJ, Calne DB. | + | BACKGROUND: The spatial and temporal pattern of excessive disease occurrence, termed clustering, may provide clues about the underlying etiology. |
- | Pacific Parkinson' | + | |
- | BACKGROUND: The spatial and temporal pattern of excessive disease occurrence, termed clustering, may provide clues about the underlying etiology. OBJECTIVE: To report the occurrence of 3 clusters of Parkinson disease (PD) in Canada. DESIGN AND PATIENTS: We determined the population groups containing the clusters, geographical limits, and duration of exposure to the specific environments. We tested whether there was an excessive presence of Parkinson disease by calculating the probability of the observed cases occurring under the null hypothesis that the disease developed independently and at random in cluster subjects. Results of genetic testing for mutations in the alpha-synuclein, | + | OBJECTIVE: To report the occurrence of 3 clusters of Parkinson disease (PD) in Canada. |
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+ | DESIGN AND PATIENTS: We determined the population groups containing the clusters, geographical limits, and duration of exposure to the specific environments. We tested whether there was an excessive presence of Parkinson disease by calculating the probability of the observed cases occurring under the null hypothesis that the disease developed independently and at random in cluster subjects. Results of genetic testing for mutations in the alpha-synuclein, | ||
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+ | RESULTS: The probabilities of random occurrence (P values) in the 3 clusters were P = 7.9 x 10 (-7)for cluster 1, P = 2.6 x 10 (-7)for cluster 2, and P = 1.5 x 10 (-7)for cluster 3. | ||
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+ | CONCLUSIONS: | ||
===== Gastrointestinal inflammation ===== | ===== Gastrointestinal inflammation ===== | ||
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- | Colonoscopy or flexible | + | Colonoscopy or flexible |
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