Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2003-6-19
pubmed:abstractText
Parkin gene mutations have been detected in families with early-onset autosomal recessive parkinsonism. We report a novel heterozygous 40 base pair deletion in exon 3 of the parkin gene that increases the susceptibility of carriers to develop parkinsonism/dystonia and manifests remarkable variability in regard to age of onset and phenotype in a single family. After identifying the new mutation in the proband of this kindred, family members were contacted and evaluated by a movement disorders specialist using standardized protocols and prospectively set diagnostic criteria. Importantly, examining physicians and family members were blinded to the genetic testing. Five affected members in two generations carried the parkin mutation. The proband and one of his brothers had disease onset at 24 years of age while another brother had disease at age 44. One exhibited multi-focal dystonia and parkinsonism of 17 years duration, another suffered a unilateral slowly progressive parkinsonism over 13 years while the third suffered dystonia-parkinsonism of recent onset. A sibling pair in the preceding generation had mild previously undiagnosed parkinsonism. Clinicians should be aware that patients carrying a parkin gene mutation may present with dystonia-parkinsonism or very subtle parkinsonism with a markedly varied age of onset.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0885-3185
pubmed:author
pubmed:copyrightInfo
Copyright 2003 Movement Disorder Society
pubmed:issnType
Print
pubmed:volume
18
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
758-63
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed-meshheading:12815654-Adult, pubmed-meshheading:12815654-Age Factors, pubmed-meshheading:12815654-Aged, pubmed-meshheading:12815654-Base Pairing, pubmed-meshheading:12815654-Chromosome Deletion, pubmed-meshheading:12815654-DNA Mutational Analysis, pubmed-meshheading:12815654-Dementia, pubmed-meshheading:12815654-Diagnosis, Differential, pubmed-meshheading:12815654-Disease Progression, pubmed-meshheading:12815654-Disease Susceptibility, pubmed-meshheading:12815654-Dystonic Disorders, pubmed-meshheading:12815654-Exons, pubmed-meshheading:12815654-Female, pubmed-meshheading:12815654-Genetic Testing, pubmed-meshheading:12815654-Genetic Variation, pubmed-meshheading:12815654-Heterozygote Detection, pubmed-meshheading:12815654-Humans, pubmed-meshheading:12815654-Male, pubmed-meshheading:12815654-Middle Aged, pubmed-meshheading:12815654-Neurologic Examination, pubmed-meshheading:12815654-Parkinson Disease, pubmed-meshheading:12815654-Pedigree, pubmed-meshheading:12815654-Phenotype, pubmed-meshheading:12815654-Ubiquitin-Protein Ligases
pubmed:year
2003
pubmed:articleTitle
Marked variation in clinical presentation and age of onset in a family with a heterozygous parkin mutation.
pubmed:affiliation
The Parkinson's Institute, Sunnyvale, California 84089, USA.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't