期刊
AMERICAN JOURNAL OF MEDICAL GENETICS PART C-SEMINARS IN MEDICAL GENETICS
卷 157C, 期 2, 页码 123-128出版社
WILEY-BLACKWELL
DOI: 10.1002/ajmg.c.30297
关键词
intelligence; behavior; Legius syndrome; SPRED1; MAPK
资金
- Fonds voor Wetenschappelijk Onderzoek Vlaanderen [G.0578.06, G.O551.08]
- Federal Office for Scientific, Technical and Cultural Affairs, Belgium [P6/05]
- K.U. Leuven
- Division of Intramural Research of the National Human Genome Research Institute
- National Institute of Mental Health
Legius syndrome is a RAS-MAPK syndrome characterized by pigmentary findings similar to neurofibromatosis type 1 (NF1), but without tumor complications. Learning difficulties and behavioral problems have been reported to be associated with Legius syndrome, but have not been studied systematically. We investigated intelligence and behavior in 15 patients with Legius syndrome and 7 unaffected family members. We report a mean full-scale IQ of 101.57 in patients with Legius syndrome, which does not differ from the control group. We find a significantly lower Performance IQ in children with Legius syndrome compared to their unaffected family members. Few behavioral problems are present as assessed by the Child Behavior Checklist (CBCL) questionnaire. Our observations suggest that, akin to the milder somatic phenotype, the cognitive phenotype in Legius syndrome is less severe than that of NF1. (c) 2011 Wiley-Liss, Inc.
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