A critical appraisal of the premotor symptoms of Parkinson's disease: Potential usefulness in early diagnosis and design of neuroprotective trials

The neurodegenerative process is well established in Parkinson patients presenting to a physician with early motor signs. There is increasing evidence that a variety of nonmotor features can antedate the typical presentation by many years. As the search for successful disease‐modifying treatment adv...

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Published inMovement disorders Vol. 26; no. 5; pp. 775 - 783
Main Author Lang, Anthony E.
Format Journal Article
LanguageEnglish
Published Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.04.2011
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Abstract The neurodegenerative process is well established in Parkinson patients presenting to a physician with early motor signs. There is increasing evidence that a variety of nonmotor features can antedate the typical presentation by many years. As the search for successful disease‐modifying treatment advances, it is logical to consider how this could be applied to patients in the earliest stages of the disease, indeed before motor features develop, with the obvious goal of delaying and even preventing the onset of the motor syndrome. However, many of these nonmotor symptoms are rather nonspecific and are not uncommon in the general population. Being able to identify individuals in whom these features are more likely to represent true premotor Parkinson's disease represents a major challenge. Until widely applicable and reliable biomarkers for the presence of Parkinson's disease‐related pathology are developed (including biomarkers of disease severity and rate of progression), further evaluation of possible premotor features in selected populations will probably serve as the basis for future studies of disease‐modifying therapies. This article will review the current status of premotor symptoms of Parkinson's disease and discuss their potential for early diagnosis and the design of neuroprotective trials. © 2011 Movement Disorder Society
AbstractList The neurodegenerative process is well established in Parkinson patients presenting to a physician with early motor signs. There is increasing evidence that a variety of nonmotor features can antedate the typical presentation by many years. As the search for successful disease‐modifying treatment advances, it is logical to consider how this could be applied to patients in the earliest stages of the disease, indeed before motor features develop, with the obvious goal of delaying and even preventing the onset of the motor syndrome. However, many of these nonmotor symptoms are rather nonspecific and are not uncommon in the general population. Being able to identify individuals in whom these features are more likely to represent true premotor Parkinson's disease represents a major challenge. Until widely applicable and reliable biomarkers for the presence of Parkinson's disease‐related pathology are developed (including biomarkers of disease severity and rate of progression), further evaluation of possible premotor features in selected populations will probably serve as the basis for future studies of disease‐modifying therapies. This article will review the current status of premotor symptoms of Parkinson's disease and discuss their potential for early diagnosis and the design of neuroprotective trials. © 2011 Movement Disorder Society
The neurodegenerative process is well established in Parkinson patients presenting to a physician with early motor signs. There is increasing evidence that a variety of nonmotor features can antedate the typical presentation by many years. As the search for successful disease-modifying treatment advances, it is logical to consider how this could be applied to patients in the earliest stages of the disease, indeed before motor features develop, with the obvious goal of delaying and even preventing the onset of the motor syndrome. However, many of these nonmotor symptoms are rather nonspecific and are not uncommon in the general population. Being able to identify individuals in whom these features are more likely to represent true premotor Parkinson's disease represents a major challenge. Until widely applicable and reliable biomarkers for the presence of Parkinson's disease-related pathology are developed (including biomarkers of disease severity and rate of progression), further evaluation of possible premotor features in selected populations will probably serve as the basis for future studies of disease-modifying therapies. This article will review the current status of premotor symptoms of Parkinson's disease and discuss their potential for early diagnosis and the design of neuroprotective trials.
The neurodegenerative process is well established in Parkinson patients presenting to a physician with early motor signs. There is increasing evidence that a variety of nonmotor features can antedate the typical presentation by many years. As the search for successful disease-modifying treatment advances, it is logical to consider how this could be applied to patients in the earliest stages of the disease, indeed before motor features develop, with the obvious goal of delaying and even preventing the onset of the motor syndrome. However, many of these nonmotor symptoms are rather nonspecific and are not uncommon in the general population. Being able to identify individuals in whom these features are more likely to represent true premotor Parkinson's disease represents a major challenge. Until widely applicable and reliable biomarkers for the presence of Parkinson's disease-related pathology are developed (including biomarkers of disease severity and rate of progression), further evaluation of possible premotor features in selected populations will probably serve as the basis for future studies of disease-modifying therapies. This article will review the current status of premotor symptoms of Parkinson's disease and discuss their potential for early diagnosis and the design of neuroprotective trials.The neurodegenerative process is well established in Parkinson patients presenting to a physician with early motor signs. There is increasing evidence that a variety of nonmotor features can antedate the typical presentation by many years. As the search for successful disease-modifying treatment advances, it is logical to consider how this could be applied to patients in the earliest stages of the disease, indeed before motor features develop, with the obvious goal of delaying and even preventing the onset of the motor syndrome. However, many of these nonmotor symptoms are rather nonspecific and are not uncommon in the general population. Being able to identify individuals in whom these features are more likely to represent true premotor Parkinson's disease represents a major challenge. Until widely applicable and reliable biomarkers for the presence of Parkinson's disease-related pathology are developed (including biomarkers of disease severity and rate of progression), further evaluation of possible premotor features in selected populations will probably serve as the basis for future studies of disease-modifying therapies. This article will review the current status of premotor symptoms of Parkinson's disease and discuss their potential for early diagnosis and the design of neuroprotective trials.
Author Lang, Anthony E.
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Iwanami M, Miyamoto T, Miyamoto M, Hirata K, Takada E. Relevance of substantia nigra hyperechogenicity and reduced odor identification in idiopathic REM sleep behavior disorder. Sleep Med. 2010; 11: 361-365.
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Ross GW, Abbott RD, Petrovitch H, et al. Association of olfactory dysfunction with incidental Lewy bodies. Mov Disord. 2006; 21: 2062-2067.
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Savica R, Carlin JM, Grossardt BR, et al. Medical records documentation of constipation preceding Parkinson disease. A case-control study. Neurology. 2009; 73: 1752-1758.
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Stockner H, Iranzo A, Seppi K, et al. Midbrain Hyperechogenicity in Idiopathic REM Sleep Behavior Disorder. Mov Disord. 2009; 24: 1906-1909.
Postuma RB, Lanfranchi PA, Blais H, Gagnon JF, Montplaisir JY. Cardiac autonomic dysfunction in idiopathic REM sleep behavior disorder. Mov Disord. 2010; 25: 2304-2310.
Ashu Valappil R, Black JE, Broderick MJ, et al. Exploring the electrocardiogram as a potential tool to screen for premotor Parkinson's disease. Mov Disord 2010; 25: 2296-2303.
Ponsen MM, Stoffers D, Booij J, Eck-Smit BLF, Wolters EC, Berendse HW. Idiopathic hyposmia as a preclinical sign of Parkinson's disease. Ann Neurol. 2004; 56: 173-181.
Postuma RB, Gagnon JF, Rompre S, Montplaisir JY. Severity of REM atonia loss in idiopathic REM sleep behavior disorder predicts Parkinson disease. Neurology. 2010;19; 74: 239-244.
Abbott RD, Ross GW, White LR, et al. Environmental, life-style, and physical precursors of clinical Parkinson's disease: recent findings from the Honolulu-Asia Aging Study. J Neurol. 2003; 250( Suppl 3): III30-III39.
Postuma RB, Gagnon JF, Vendette M, Desjardins C, Montplaisir JY. Olfaction and color vision identify impending neurodegeration in REM behavior disorder. Ann Neurol. 2010; in press.
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Dickson DW, Fujishiro H, DelleDonne A, et al. Evidence that incidental Lewy body disease is pre-symptomatic Parkinson's disease. Acta Neuropathol. 2008; 115: 437-444.
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Sommer U, Hummel T, Cormann K, et al. Detection of presymptomatic Parkinson's disease: Combining smell tests, transcranial sonography, and SPECT. Mov Disord. 2004; 19: 1196-1202.
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Abbott RD, Petrovitch H, White LR, et al. Frequency of bowel movements and the future risk of Parkinson's disease. Neurology. 2001; 57: 456-462.
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Berg D, Seppi K, Liepelt I, et al. Enlarged hyperechogenic substantia nigra is related to motor performance and olfaction in the elderly. Mov Disord. 2010; 25: 1464-1469.
Shiba M, Bower JH, Maraganore DM, et al. Anxiety disorders and depressive disorders preceding Parkinson's disease: a case-control study. Mov Disord. 2000; 15: 669-677.
Petrovitch H, Abbott RD, Ross GW, et al. Bowel movement frequency in late-life and substantia nigra neuron density at death. Mov Disord. 2009; 24: 371-376.
Ross GW, Petrovitch H, Abbott RD, et al. Association of olfactory dysfunction with risk for future Parkinson's disease. Ann Neurol. 2008; 63: 167-173.
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Snippet The neurodegenerative process is well established in Parkinson patients presenting to a physician with early motor signs. There is increasing evidence that a...
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SubjectTerms Autonomic Nervous System Diseases - etiology
Behavioral Symptoms - etiology
Clinical Trials as Topic
Cognition Disorders - etiology
Disease Progression
Early Diagnosis
Humans
neuroprotection
non-motor
olfaction
Parkinson Disease - complications
Parkinson Disease - diagnosis
Parkinson Disease - therapy
Parkinson's disease
Predictive Value of Tests
premotor
rapid eye movement behavior disorder
screening
Sensitivity and Specificity
Sleep Wake Disorders - etiology
Title A critical appraisal of the premotor symptoms of Parkinson's disease: Potential usefulness in early diagnosis and design of neuroprotective trials
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https://onlinelibrary.wiley.com/doi/abs/10.1002%2Fmds.23609
https://www.ncbi.nlm.nih.gov/pubmed/21484865
https://www.proquest.com/docview/863767566
Volume 26
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