Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2008-3-26
pubmed:abstractText
Olfactory function is diminished in patients with idiopathic Parkinson disease (IPD). Because previous work almost exclusively relied upon cross-sectional studies, the present investigation aimed to address the correlation between olfactory loss and duration of disease within the context of a longitudinal study, accompanying well-diagnosed patients over an average period of 4.4 years. A group of 27 IPD patients was examined (5 women, 22 men; age range 27-64 years; duration of disease: 0 to 19 years). Psychophysical olfactory testing was performed after 3-6 years (mean 4.4 years) using the "Sniffin' Sticks" test battery which consists of subtests for odor thresholds, odor discrimination, and odor identification. The study yielded the following major results: (1) olfactory function in IPD patients changes in an unpredictable manner, (2) especially when considering results from the second session relatively few IPD patients were completely anosmic; none of the patients, however, were normosmic. One possible explanation for these findings may lie in the hypothesis based on results by Huisman et al. (2004) who reported an increase of dopaminergic neurons in the olfactory bulb in IPD patients. In this scenario, olfactory loss seen early in the disease may be based on an incomplete inhibition of olfactory input at the level of the olfactory bulb.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0340-5354
pubmed:author
pubmed:issnType
Print
pubmed:volume
255
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
367-70
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
A longitudinal study of olfactory function in patients with idiopathic Parkinson's disease.
pubmed:affiliation
Dept. of Neurology, University of Dresden Medical School, Dresden, Germany.
pubmed:publicationType
Journal Article