TY - JOUR
T1 - Homozygosity mapping of a Desbuquois dysplasia locus to chromosome 17q25.3
AU - Faivre, L.
AU - Le Merrer, M.
AU - Al-Gazali, L. I.
AU - Ausems, M. G.E.M.
AU - Bitoun, P.
AU - Bacq, D.
AU - Maroteaux, P.
AU - Munnich, A.
AU - Cormier-Daire, V.
PY - 2003/4/1
Y1 - 2003/4/1
N2 - Desbuquois dysplasia is a rare autosomal recessive chondrodysplasia characterised by short stature, joint laxity, facial dysmorphism, a "Swedish key" appearance of the proximal femur, advanced carpal and tarsal bone age, and hand anomalies consisting of phalangeal dislocations and an extra ossification centre distal to the second metacarpal. However, the latter changes are not consistently observed in all Desbuquois patients, defining two distinct groups, based on the presence or absence of hand anomalies. We have performed a genome wide search in four inbred Desbuquois families with typical hand anomalies originating from France, Sri-Lanka, the United Arab Emirates, and Morocco. Here, we report on the mapping of a disease gene to chromosome 17q25.3 (Zmax=4.61 at θ=0 at locus D17S1806) in the 9.5 cM interval defined by loci D17S802 and D17S1822. The present study supports the genetic homogeneity of the clinical subtype with hond anomalies and will hopefully help in identifying the Desbuquois dysplasia gene.
AB - Desbuquois dysplasia is a rare autosomal recessive chondrodysplasia characterised by short stature, joint laxity, facial dysmorphism, a "Swedish key" appearance of the proximal femur, advanced carpal and tarsal bone age, and hand anomalies consisting of phalangeal dislocations and an extra ossification centre distal to the second metacarpal. However, the latter changes are not consistently observed in all Desbuquois patients, defining two distinct groups, based on the presence or absence of hand anomalies. We have performed a genome wide search in four inbred Desbuquois families with typical hand anomalies originating from France, Sri-Lanka, the United Arab Emirates, and Morocco. Here, we report on the mapping of a disease gene to chromosome 17q25.3 (Zmax=4.61 at θ=0 at locus D17S1806) in the 9.5 cM interval defined by loci D17S802 and D17S1822. The present study supports the genetic homogeneity of the clinical subtype with hond anomalies and will hopefully help in identifying the Desbuquois dysplasia gene.
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U2 - 10.1136/jmg.40.4.282
DO - 10.1136/jmg.40.4.282
M3 - Article
C2 - 12676900
AN - SCOPUS:0037374842
SN - 0022-2593
VL - 40
SP - 282
EP - 284
JO - Journal of Medical Genetics
JF - Journal of Medical Genetics
IS - 4
ER -