fibrous dysplasia of bone/argininas

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Primary hyperparathyroidism-associated polyostotic fibrous dysplasia: absence of McCune-Albright syndrome mutations.

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Several cases of sporadic primary hyperparathyroidism in association with fibrous dysplasia of the bone have been reported in the English literature. Since fibrous dysplasia is a major feature and hyperparathyroidism is occasionally found in the McCune-Albright syndrome, we hypothesized that such

The diagnostic utility of the GNAS mutation in patients with fibrous dysplasia: meta-analysis of 168 sporadic cases.

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GNAS mutations have been implicated in the development of fibrous dysplasia and multiple endocrinopathies of the Albright-McCune syndrome. To investigate the diagnostic utility of GNAS mutations in patients with fibrous dysplasia, we performed mutational analyses of histologically confirmed fibrous

GNAS mutational analysis in differentiating fibrous dysplasia and ossifying fibroma of the jaw.

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Differential diagnosis of fibrous dysplasia and ossifying fibroma may often pose problems for pathologists. The purpose of this study was to evaluate the value of mutational analysis of the GNAS gene in differentiating these two conditions. DNA samples from patients with fibrous dysplasia (n=30) and

[McCune-Albright syndrome revealed by Blaschko-linear café-au-lait spots on the back].

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BACKGROUND McCune-Albright syndrome is a rare sporadic disease defined by the triad of café-au-lait spots, fibrous dysplasia of bone and endocrine disorder. Diagnosis is classically confirmed by the presence of bone lesions or precocious puberty. We report a case of McCune-Albright syndrome

Activating mutation in the stimulatory guanine nucleotide-binding protein in an infant with Cushing's syndrome and nodular adrenal hyperplasia.

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Cushing's syndrome in infancy is uncommon. In this report, we describe an infant with ACTH-independent Cushing's syndrome in which an activating mutation in the stimulatory G-protein (Gs alpha) was detected. The patient presented at 3 months of age with Cushingoid features, poor linear growth, and

Unusual phenotypical variations in a boy with McCune-Albright syndrome.

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BACKGROUND McCune-Albright syndrome (MAS) typically comprises the constellation of polyostotic fibrous dysplasia, café-au-lait spots, and associated endocrinopathies including gonadotropin-independent precocious puberty, excessive growth hormone production and gigantism, hyperthyroidism, and

McCune-Albright syndrome: molecular genetics.

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McCune-Albright syndrome (MAS) is a rare disorder characterized by the association of precocious puberty (mostly in girls), polyostotic fibrous dysplasia and café-au-lait pigmented skin lesions. In addition to this classical triad, several endocrine disorders, all due to autonomous hormonal

Changes in gene expression in human skeletal stem cells transduced with constitutively active Gsα correlates with hallmark histopathological changes seen in fibrous dysplastic bone.

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Fibrous dysplasia (FD) of bone is a complex disease of the skeleton caused by dominant activating mutations of the GNAS locus encoding for the α subunit of the G protein-coupled receptor complex (Gsα). The mutation involves a substitution of arginine at position 201 by histidine or cysteine

Activating Gsalpha mutations: analysis of 113 patients with signs of McCune-Albright syndrome--a European Collaborative Study.

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McCune-Albright syndrome (MAS) is a sporadic disorder characterized by the classic triad of polyostotic fibrous dysplasia, café-au-lait skin pigmentation, and peripheral precocious puberty. It is due to postzygotic activating mutations of arginine 201 in the guanine-nucleotide-binding protein (G

A novel, complex heterozygous mutation within Gsalpha gene in patient with McCune-Albright syndrome.

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McCune-Albright syndrome (MAS) is caused by embryonic somatic mutations leading to the substitution of His or Cys for Arg at amino acid 201 of the alpha-subunit of the signal transduction protein Gs (Gsalpha). The mutations have been found in many affected tissues of patients with MAS. Recently, a

Activating mutations of Gs protein in monostotic fibrous lesions of bone.

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Activating mutations of the alpha chain of the heterotrimeric signal transducer Gs disrupt the inherent guanosine triphosphatase activity of the alpha chain, stimulate adenylyl cyclase, and can result in independent cell proliferation. Such mutations are identified in a number of endocrine

Identification of a mutation in the gene encoding the alpha subunit of the stimulatory G protein of adenylyl cyclase in McCune-Albright syndrome.

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McCune-Albright syndrome (MAS) is characterized by polyostotic fibrous dysplasia, café-au-lait lesions, and a variety of endocrine disorders, including precocious puberty, hyperthyroidism, hypercortisolism, growth hormone excess, and hyperprolactinemia. The diverse metabolic abnormalities seen in

Activating mutations of the stimulatory G protein in the McCune-Albright syndrome.

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BACKGROUND The McCune-Albright syndrome is a sporadic disease characterized by polyostotic fibrous dysplasia, café au lait spots, sexual precocity, and hyperfunction of multiple endocrine glands. These manifestations may be explained by a somatic mutation in affected tissues that results in

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