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  • Title: Short stature homeobox-containing gene deletion screening by fluorescence in situ hybridisation in patients with short stature.
    Author: Musebeck J, Mohnike K, Beye P, Tönnies H, Neitzel H, Schnabel D, Grüters A, Wieacker PF, Stumm M.
    Journal: Eur J Pediatr; 2001 Sep; 160(9):561-5. PubMed ID: 11585080.
    Abstract:
    UNLABELLED: The short stature homeobox-containing gene (SHOX) on the short arm of the X and Y chromosomes is an important determining factor of stature phenotype. Absence of the SHOX gene is a main cause for short stature in patients with Turner syndrome. Mutations of the SHOX gene can also be responsible for Léri-Weill syndrome (dyschondrosteosis). The aim of this study was to determine the frequency of SHOX deletions in short stature children and to delineate indications for SHOX deletion screening. Out of 50 probands, 35 had idiopathic short stature, 12 cases showed additional anomalies of the forearms (in particular Madelung deformity) and three patients were affected by a congenital heart defect. Chromosomal investigations with fluoresence in situ hybridisation did not reveal a SHOX deletion in any patient with idiopathic short stature. In five of the 12 patients (41.7%) with anomalies of the forearms, a SHOX deletion on one sex chromosome could be detected. No deletion was observed in the three cases with additional heart defects. CONCLUSION: The frequency of short stature homeobox-containing gene deletions in patients with idiopathic short stature appears to be very low and does not require a fluorescence in situ hybridisation analysis. Short stature in association with anomalies of the forearms such as Madelung deformity makes a deletion more probable and therefore screening for such deletions is recommended in these cases.
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