Acrodysostosis.

Abstract

Acrodysostosis refers to a group of rare skeletal dysplasias that share in common characteristic clinical and radiological features including brachydactyly, facial dysostosis, and nasal hypoplasia. In the past, the term acrodysostosis has been used to describe patients with heterogeneous phenotypes, including, in some cases, patients that today would be given alternative diagnoses. The recent finding that mutations impairing the cAMP binding to PRKAR1A are associated with "typical" acrodysostosis and hormonal resistance initiates the era where this group of disorders can be categorized on a genetic basis. In this review, we will first discuss the clinical, radiologic, and metabolic features of acrodysostosis, emphasizing evidence that several forms of the disease are likely to exist. Second, we will describe recent results explaining the pathogenesis of acrodysostosis with hormonal resistance (ADOHR). Finally, we will discuss the similarities and differences observed comparing patients with ADOHR and other diseases resulting from defects in the PTHR1 signaling pathway, in particular, pseudohypoparathyroidism type 1a and pseudopseudohypoparathyroidism.

• Authors: C Silve, E Clauser, A Linglart
• Journal: Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme (Horm Metab Res) Vol. 44 Issue 10 Pg. 749-58 (Sep 2012) ISSN: 1439-4286 [Electronic] Germany
• PMID: 22815067 (Publication Type: Journal Article, Review)
• Copyright: © Georg Thieme Verlag KG Stuttgart · New York.

Chemical References

• Cyclic AMP-Dependent Protein Kinase RIalpha Subunit
• PRKAR1A protein, human
• GTP-Binding Protein alpha Subunits, Gs

Topics

• Animals
• Cyclic AMP-Dependent Protein Kinase RIalpha Subunit (genetics)
• Dysostoses (diagnostic imaging, etiology, genetics, pathology)
• GTP-Binding Protein alpha Subunits, Gs (metabolism)
• Humans
• Intellectual Disability (diagnostic imaging, etiology, genetics, pathology)
• Mutation (genetics)
• Osteochondrodysplasias (diagnostic imaging, etiology, genetics, pathology)
• Phenotype
• Radiography
• Signal Transduction (genetics)