Search results for "Tuberous Sclerosis"

showing 5 items of 15 documents

TUBEROUS SCLEROSIS COMPLEX IN A PATIENT CARRYING AN ATYPICAL GENOMIC REARRANGEMENT

2015

TUBEROUS SCLEROSIS, GENOMIC REARRANGEMENT

Settore MED/38 - Pediatria Generale E SpecialisticaSettore MED/03 - Genetica MedicaTUBEROUS SCLEROSIS GENOMIC REARRANGEMENT
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Management of Renal Angiomyolipoma: A Report of 14 Cases and Review of the Literature

1994

14 patients with renal angiomyolipoma are presented. Two of them had tuberous sclerosis (TS) with synchronous bilateral and multiple tumors. Two other patients without TS also had multiple tumors in 1 kidney. More than half the patients were symptomatic (n = 8), 2 of them with spontaneous rupture of the tumor. Misdiagnosis, spontaneous rupture and tumor growth can be prevented by utilizing conservative, organ-sparing techniques. In cases of solitary kidneys with large and/or hemorrhagic angiomyolipoma, superselective arterial embolization is indicated.

Spontaneous rupturePathologymedicine.medical_specialtyKidneyAngiomyolipomabusiness.industryUrologyArterial Embolizationmedicine.diseaseTuberous sclerosismedicine.anatomical_structuremedicineHamartomaTumor growthbusinessRenal angiomyolipomaEuropean Urology
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Sustained activation of mTOR pathway in embryonic neural stem cells leads to development of tuberous sclerosis complex-associated lesions

2011

SummaryTuberous Sclerosis Complex (TSC) is a multisystem genetic disorder characterized by hamartomatous neurological lesions that exhibit abnormal cell proliferation and differentiation. Hyperactivation of mTOR pathway by mutations in either the Tsc1 or Tsc2 gene underlies TSC pathogenesis, but involvement of specific neural cell populations in the formation of TSC-associated neurological lesions remains unclear. We deleted Tsc1 in Emx1-expressing embryonic telencephalic neural stem cells (NSCs) and found that mutant mice faithfully recapitulated TSC neuropathological lesions, such as cortical lamination defects and subependymal nodules (SENs). These alterations were caused by enhanced gen…

Telencephaloncongenital hereditary and neonatal diseases and abnormalitiesCellular differentiationNeuroepithelial CellsEmbryonic DevelopmentBiologyTuberous Sclerosis Complex 1 Proteinmurine modelCerebral VentriclesMiceNeural Stem CellsCell MovementTuberous SclerosismedicineGeneticsAnimalsAnimals; Animals Newborn; Cell Differentiation; Cell Movement; Cell Proliferation; Cerebral Ventricles; Embryonic Development; Embryonic Stem Cells; Epilepsy; Gene Silencing; Gene Targeting; Megalencephaly; Mice; Mutation; Neural Stem Cells; Neuroepithelial Cells; Neurons; TOR Serine-Threonine Kinases; Telencephalon; Tuberous Sclerosis; Tuberous Sclerosis Complex 1 Protein; Tumor Suppressor Proteins; Signal TransductionGene SilencingNeural cellPI3K/AKT/mTOR pathwayEmbryonic Stem CellsCell ProliferationNeuronsEpilepsymTOR; Neural Stem Cells; Tuberous Sclerosis; murine modelTOR Serine-Threonine KinasesTumor Suppressor ProteinsCell DifferentiationCell BiologyNewbornEmbryonic stem cellNeural stem cellMegalencephalyCell biologynervous system diseasesNeuroepithelial cellmedicine.anatomical_structureAnimals NewbornImmunologyGene TargetingMutationmTORMolecular MedicineTSC1TSC2Signal Transduction
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Functional Assessment of Variants in the TSC1 and TSC2 Genes Identified in Individuals with Tuberous Sclerosis Complex

2011

The effects of missense changes and small in-frame deletions and insertions on protein function are not easy to predict, and the identification of such variants in individuals at risk of a genetic disease can complicate genetic counselling. One option is to perform functional tests to assess whether the variants affect protein function. We have used this strategy to characterize variants identified in the TSC1 and TSC2 genes in individuals with, or suspected of having, Tuberous Sclerosis Complex (TSC). Here we present an overview of our functional studies on 45 TSC1 and 107 TSC2 variants. Using a standardized protocol we classified 16 TSC1 variants and 70 TSC2 variants as pathogenic. In add…

congenital hereditary and neonatal diseases and abnormalitiesGenetic counselingtuberous sclerosis complexBiologyTuberous Sclerosis Complex 1 Protein03 medical and health sciencesTuberous sclerosis0302 clinical medicineTuberous SclerosisGenetic variationTuberous Sclerosis Complex 2 ProteinGeneticsmedicineMissense mutationHumansunclassified variantsGeneGenetics (clinical)Cells Cultured030304 developmental biologyGenetics0303 health sciencesModels GeneticTumor Suppressor ProteinsLife SciencesGenetic Variationmedicine.diseaseTSC23. Good healthnervous system diseasesTSC1medicine.anatomical_structureTSC1TSC2030217 neurology & neurosurgeryCommon disease-common variant
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Angiomyolipoma of the upper lip : case report and review of the literature

2007

Angiomyolipoma (AML) is a hamartomatous growth that usually affects the kidney. One third of patients with AML present with manifestations of tuberous sclerosis. Oral AML is rare with only 6 cases reported in the English-language literature. In the present case, AML was located in the upper lip of a 43 year-old woman. Clinically, it presented as a firm nodule, well circumscribed and measuring 1x2 cm. It was surgically excised. Histopathological analysis showed a lesion composed of an admixture of smooth muscle cells, blood vessels, and adipose tissue. The immunohistochemical study revealed positivity for vimentin, smooth muscle actin, pan specific muscle actin and desmin. CD68, CD34 and mas…

immunohistochemistryUNESCO::CIENCIAS MÉDICAStuberous sclerosisupper lipOral angiomyolipoma:CIENCIAS MÉDICAS [UNESCO]
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