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Parkinson's disease and aging: Same or different process? by Christopher H. Hawkes is a Medicine article available to read on EtoBox.
What is Parkinson's disease and aging: Same or different process? about?
## Abstract Parkinson's disease (PD), which probably commences in the olfactory bulb and nuclei of IX and X, may represent accelerated normal aging or a disease specific process. The olfactory and motor disorders are associated in PD, so that smell loss should reflect the underlying disease course. Information on age‐associated decline can be obtained by single measurement from cross‐sectional analysis of patients and controls of different ages, because the observed between‐subject picture may reflect a similar within‐subject pattern. University of Pennsylvania Smell Identification Test (UPSIT) scores were examined for aging effects in 263 controls and 266 PD patients. Three models were applied that are (a) simple linear regression and (b) quadratic term in age: (i) assuming two parallel curves and (ii) allowing for two separate curves. Both groups declined with age. All three models were fitted successfully to the cross‐sectional data and none suggested that the lower mean UPSIT score in patients compared to controls was a premature ageing effect. The mean PD‐UPSIT score even at the age of 40, was lower than the control mean at the upper life‐span limit, implied that the decline i
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- Author
- Christopher H. Hawkes
- Publisher
- John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0885-3185)
- Published
- 2008
- Language
- EN
- Field
- Medicine (Health Sciences)