Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1996-12-5
pubmed:abstractText
Almost all Japanese group A xeroderma pigmentosum (XP-A) patients have nonsense and/or nonsense codon-leading mutations in the XP group A (XPA) gene, and develop neurological abnormalities. Walking ability is one of the most important neuromuscular functions of the patients, because it determines their daily activities. We studied the correlation between the various combinations of mutations found by PCR-RFLP in Japanese XP-A patients and their chronological walking impairment. We classified these patients into six groups. Group I: A patient who was homozygous for the mutation at codon 116 in exon 3 (Type 1 mutation) could never walk unaided. Group III: Typical patients who were homozygous for the mutation at intron 3 (Type 2 mutation) could walk unaided till 7-16 years of age. Group V: Patients who were compound heterozygous for Type 2 mutation and for the mutation at codon 228 in exon 6 (Type 3 mutation) began to develop some walking difficulty at 5-13 years of age and became unable to walk at 25-28 years of age. Group VI: A patient who was homozygous for Type 3 mutation could walk unaided without any difficulty till the age of 21. The walking ability of group II and IV patients is not known yet.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0009-9163
pubmed:author
pubmed:issnType
Print
pubmed:volume
48
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
225-31
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Chronological difference in walking impairment among Japanese group A xeroderma pigmentosum (XP-A) patients with various combinations of mutation sites.
pubmed:affiliation
Department of Dermatology, Osaka University School of Medicine, Japan.
pubmed:publicationType
Journal Article, Case Reports