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Whole exome sequencing to identify genetic causes of short stature.


ABSTRACT: Short stature is a common reason for presentation to pediatric endocrinology clinics. However, for most patients, no cause for the short stature can be identified. As genetics plays a strong role in height, we sought to identify known and novel genetic causes of short stature.We recruited 14 children with severe short stature of unknown etiology. We conducted whole exome sequencing of the patients and their family members. We used an analysis pipeline to identify rare non-synonymous genetic variants that cause the short stature.We identified a genetic cause of short stature in 5 of the 14 patients. This included cases of floating-harbor syndrome, Kenny-Caffey syndrome, the progeroid form of Ehlers-Danlos syndrome, as well as 2 cases of the 3-M syndrome. For the remaining patients, we have generated lists of candidate variants.Whole exome sequencing can help identify genetic causes of short stature in the context of defined genetic syndromes, but may be less effective in identifying novel genetic causes of short stature in individual families. Utilized in the clinic, whole exome sequencing can provide clinically relevant diagnoses for these patients. Rare syndromic causes of short stature may be underrecognized and underdiagnosed in pediatric endocrinology clinics.

SUBMITTER: Guo MH 

PROVIDER: S-EPMC4130218 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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Whole exome sequencing to identify genetic causes of short stature.

Guo Michael H MH   Shen Yiping Y   Walvoord Emily C EC   Miller Timothy C TC   Moon Jennifer E JE   Hirschhorn Joel N JN   Dauber Andrew A  

Hormone research in paediatrics 20140620 1


<h4>Background/aims</h4>Short stature is a common reason for presentation to pediatric endocrinology clinics. However, for most patients, no cause for the short stature can be identified. As genetics plays a strong role in height, we sought to identify known and novel genetic causes of short stature.<h4>Methods</h4>We recruited 14 children with severe short stature of unknown etiology. We conducted whole exome sequencing of the patients and their family members. We used an analysis pipeline to i  ...[more]

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