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Identification of a GDF5 mutation in a Korean patient with brachydactyly type C without foot involvement.


ABSTRACT: Brachydactyly type C (BDC) is characterized by shortening of the middle phalanges of the index, middle, and little fingers. Hyperphalangy of the index and middle finger and shortening of the first metacarpal can also be observed. BDC is a rare genetic condition associated with the GDF5 gene, and this condition has not been confirmed by genetic analysis so far in the Korean population. Herein, we present a case of a 6-yr-old girl diagnosed with BDC confirmed by molecular genetic analysis. The patient presented with shortening of the second and third digits of both hands. Sequence analysis of the GDF5 gene was performed and the pathogenic mutation, c.1312C>T (p.Arg438Cys), was identified. Interestingly, this mutation was previously described in a patient who presented with the absence of the middle phalanges in the second through fifth toes. However, our patient showed no involvement of the feet. Considering intrafamilial and interfamilial variability, molecular analysis of isolated brachydactyly is warranted to elucidate the genetic origin and establish a diagnosis.

SUBMITTER: Seo SH 

PROVIDER: S-EPMC3589643 | biostudies-literature | 2013 Mar

REPOSITORIES: biostudies-literature

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Identification of a GDF5 mutation in a Korean patient with brachydactyly type C without foot involvement.

Seo Soo Hyun SH   Park Mi Jung MJ   Kim Shin-Hye SH   Kim Ok-Hwa OH   Park Seungman S   Cho Sung Im SI   Park Sung Sup SS   Seong Moon-Woo MW  

Annals of laboratory medicine 20130221 2


Brachydactyly type C (BDC) is characterized by shortening of the middle phalanges of the index, middle, and little fingers. Hyperphalangy of the index and middle finger and shortening of the first metacarpal can also be observed. BDC is a rare genetic condition associated with the GDF5 gene, and this condition has not been confirmed by genetic analysis so far in the Korean population. Herein, we present a case of a 6-yr-old girl diagnosed with BDC confirmed by molecular genetic analysis. The pat  ...[more]

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