TY - JOUR
T1 - Chiari i malformation, delayed gross motor skills, severe speech delay, and epileptiform discharges in a child with FOXP1 haploinsufficiency
AU - Carr, Christopher W.
AU - Moreno-De-Luca, Daniel
AU - Parker, Colette
AU - Zimmerman, Holly H.
AU - Ledbetter, Nikki
AU - Martin, Christa Lese
AU - Dobyns, William B.
AU - Abdul-Rahman, Omar A.
PY - 2010/11
Y1 - 2010/11
N2 - Human FOXP2 deficiency has been identified as a cause of hereditary developmental verbal dyspraxia. Another member of the same gene family, FOXP1, has expression patterns that overlap with FOXP2 in some areas of the brain, and FOXP1 and FOXP2 have the ability to form heterodimers. These findings suggest the possibility that FOXP1 may also contribute to proper speech development. However, no such role of FOXP1 has been established to date. Recently, a child was reported who presented with a 3p13-14.1 deletion of four genes, including FOXP1, and a constellation of deficits that included speech delay. In this study, we report the case of a patient with a single deletion of FOXP1. This patient presented with speech and motor developmental delays, a Chiari I malformation, and epileptiform discharges. The nature of the speech deficit is different from the primary oromotor verbal dyspraxia found in patients with FOXP2 deficiency. The patient's developmental deficits may support a role for FOXP1 in the development of verbal and motor skills.
AB - Human FOXP2 deficiency has been identified as a cause of hereditary developmental verbal dyspraxia. Another member of the same gene family, FOXP1, has expression patterns that overlap with FOXP2 in some areas of the brain, and FOXP1 and FOXP2 have the ability to form heterodimers. These findings suggest the possibility that FOXP1 may also contribute to proper speech development. However, no such role of FOXP1 has been established to date. Recently, a child was reported who presented with a 3p13-14.1 deletion of four genes, including FOXP1, and a constellation of deficits that included speech delay. In this study, we report the case of a patient with a single deletion of FOXP1. This patient presented with speech and motor developmental delays, a Chiari I malformation, and epileptiform discharges. The nature of the speech deficit is different from the primary oromotor verbal dyspraxia found in patients with FOXP2 deficiency. The patient's developmental deficits may support a role for FOXP1 in the development of verbal and motor skills.
KW - Chiari I malformation
KW - FOXP
KW - deletion
KW - developmental delay
KW - speech deficit
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UR - http://www.scopus.com/inward/citedby.url?scp=77958510976&partnerID=8YFLogxK
U2 - 10.1038/ejhg.2010.96
DO - 10.1038/ejhg.2010.96
M3 - Article
C2 - 20571508
AN - SCOPUS:77958510976
SN - 1018-4813
VL - 18
SP - 1216
EP - 1220
JO - European Journal of Human Genetics
JF - European Journal of Human Genetics
IS - 11
ER -