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McCune–Albright syndrome is a complex genetic disorder affecting the bone, skin and endocrine systems. It is a mosaic disease arising from somatic activating mutations in GNAS , which encodes the alpha-subunit of the G s heterotrimeric G protein .
The disorder bears the name of Fuller Albright, who characterized it in 1942. [12] He was also responsible for naming it "Sebright bantam syndrome," after the Sebright bantam chicken, which demonstrates an analogous hormone insensitivity. Much less commonly, the term Martin-Albright syndrome is used, this refers to Eric Martin. [13]
The following is a list of genetic disorders and if known, type of mutation and for the chromosome involved. Although the parlance "disease-causing gene" is common, it is the occurrence of an abnormality in the parents that causes the impairment to develop within the child.
Managing endocrinopathies is a critical component of management in FD. All patients with fibrous dysplasia should be evaluated and treated for endocrine diseases associated with McCune–Albright syndrome. In particular untreated growth hormone excess may worsen craniofacial fibrous dysplasia and increase the risk of blindness. [23]
Moreover, he also worked on identifying a gain-of-function mutation in the GNAS gene as the basis for constitutive activation of adenylyl cyclase in the McCune-Albright syndrome and confirmed that the unusual distribution of the endocrine, cutaneous, and skeletal lesions in the syndrome is the result of a postzygotic mosaicism. [9]
Multiple mucosal neuroma syndrome Having six or more café au lait spots greater than 5 mm in diameter before puberty, or greater than 15 mm in diameter after puberty, is a diagnostic feature of neurofibromatosis type I (NF-1), but other features are required to diagnose NF-1. [ 2 ]
Multiple Endocrine Neoplasia type 1 (MEN1) is a rare hereditary endocrine cancer syndrome characterized primarily by tumors of the parathyroid glands (95% of cases), endocrine gastroenteropancreatic (GEP) tract (30–80% of cases), and anterior pituitary (15–90% of cases). [19]
Donovan James McCune (June 24, 1902 – April 11, 1976) was an American pediatrician who conducted pioneering research on McCune–Albright syndrome. [1] He was also a collector of rare books, including many incunabula , and a devotee of letterpress printing .