Search results for "Haploinsufficiency"
showing 4 items of 54 documents
Shox-Haploinsufficiency Intra-Familial Phenotipic Variability and The Impact On Final Height: Report of a Pedigree
2019
SHOX haploinsufficiency (SHOX-D) is a genetic cause of disharmonic short stature. However, the different impact on phenotype can show differences between patients with the same genotype. GH ameliorates final height, with significant differences between patients for the putative role of environmental factors who can influence growth. We describe the case of two sisters with SHOX-D (target height: 146.8 cm (-2.6SDS); mother: 146.5 cm; father: 160 cm). ZM was first evaluated at the age of 6.8 years for disharmonic short stature: stature: 103.5 cm; SPAN: 99 cm. She was affected by SHOX-D (heterozygous missense mutation c414G>C: p.Glu138Asp of the exon 3). The same mutation was first confirme…
SHOX Haploinsufficiency in Short and Not Short Children: A Sigle Italian Cetre Data
2018
SHOX haploinsufficiency (SHOX-D) is a cause of disharmonic short stature and a possible genetic cause of idiopathic short stature also in familial cases. We describe clinical, hormonal and genetic characteristics of patients with SHOX-D haploinsufficiency, followed and treated in the period 2014-2017, in a single Italian centre. The Rappold score was used to screen short children, to select those who needed a genetic analysis of SHOX gene by MLPA and sequencing. We selected 6 patients (5 females; 1 male; age: 1.2-11 years), with documented mutations of the SHOX gene or of the promoter. One patient was already treated with low doses of GH for GHD, documented by 2 tests. One patient had type …
SHOX HAPLOINSUFFICIENCY INTRA FAMILIAL PHENOTIPIC VARIABILITY AND THE IMPACT ON FINAL HEIGHT: REPORT OF A PEDIGREE
2019
SHOX haploinsufficiency (SHOX-D) is a genetic cause of disharmonic short stature. However, the different impact on phenotype can show differences between patients with the same genotype. GH ameliorates final height, with significant differences between patients for the putative role of environmental factors who can influence growth.
Mutation Analysis of LMX1B Gene in Nail-Patella Syndrome Patients
1998
SummaryNail-patella syndrome (NPS), a pleiotropic disorder exhibiting autosomal dominant inheritance, has been studied for >100 years. Recent evidence shows that NPS is the result of mutations in the LIM-homeodomain gene LMX1B. To determine whether specific LMX1B mutations are associated with different aspects of the NPS phenotype, we screened a cohort of 41 NPS families for LMX1B mutations. A total of 25 mutations were identified in 37 families. The nature of the mutations supports the hypothesis that NPS is the result of haploinsufficiency for LMX1B. There was no evidence of correlation between aspects of the NPS phenotype and specific mutations.