Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1-2
pubmed:dateCreated
2004-10-6
pubmed:abstractText
We describe a 24-year-old Japanese woman with pantothenate kinase-associated neurodegeneration (PKAN) whose only early symptom was postural tremor in the right hand at around 18 years of age, leading to a diagnosis of essential tremor at age 21. Although she was treated with arotinolol hydrochloride and clonazepam, she gradually progressed to extrapyramidal and pyramidal signs several years later. T2-weighted magnetic resonance images (MRI) showed bilaterally marked hypointensity with a central region of hyperintensity in the globus pallidus, or the so-called "eye-of-the-tiger" sign. Six years have passed since the initial appearance of postural tremor, whereas she has not shown choreoathetosis, retinitis pigmentosa, optic atrophy, or seizure. Direct sequencing of the patient's genomic DNA revealed homozygous base substitutions in the pantothenate kinase gene (PANK2): the A764-->G substitution (N245S) due to consanguinity of her parents. Although the heterozygous form of this mutation has already been reported among several families, this is the first report of the homozygous mutation in a patient with atypical-type PKAN. This detailed description of the clinical features of a Japanese patient with PKAN arising from homozygous N245S mutations in PANK2 would be useful for elucidating the pathogenesis of PKAN.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0022-510X
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
225
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
129-33
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:15465096-Acanthocytes, pubmed-meshheading:15465096-Adult, pubmed-meshheading:15465096-Anticonvulsants, pubmed-meshheading:15465096-Asian Continental Ancestry Group, pubmed-meshheading:15465096-Asparagine, pubmed-meshheading:15465096-Basal Ganglia, pubmed-meshheading:15465096-Brain Mapping, pubmed-meshheading:15465096-Clonazepam, pubmed-meshheading:15465096-DNA Mutational Analysis, pubmed-meshheading:15465096-Family Health, pubmed-meshheading:15465096-Female, pubmed-meshheading:15465096-Homozygote, pubmed-meshheading:15465096-Humans, pubmed-meshheading:15465096-Magnetic Resonance Imaging, pubmed-meshheading:15465096-Mutation, pubmed-meshheading:15465096-Neurodegenerative Diseases, pubmed-meshheading:15465096-Phosphotransferases (Alcohol Group Acceptor), pubmed-meshheading:15465096-Propanolamines, pubmed-meshheading:15465096-Serine, pubmed-meshheading:15465096-Staining and Labeling, pubmed-meshheading:15465096-Tremor
pubmed:year
2004
pubmed:articleTitle
Pantothenate kinase-associated neurodegeneration initially presenting as postural tremor alone in a Japanese family with homozygous N245S substitutions in the pantothenate kinase gene.
pubmed:affiliation
Department of Neurology, Graduate School of Medical Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto 860-0811, Japan.
pubmed:publicationType
Journal Article, Case Reports