7 documents found, page 1 of 1
Genomic imbalances defining novel intellectual disability associated loci
Lopes, F; Torres, F; Soares, G; Barbosa, M; Silva, J; Duque, F; Rocha, M; Sá, J; Oliveira, G; Sá, MJ; Temudo, T; Sousa, S; Marques, C; Lopes, SBackground: High resolution genome-wide copy number analysis, routinely used in clinical diagnosis for several years, retrieves new and extremely rare copy number variations (CNVs) that provide novel candidate genes contributing to disease etiology. The aim of this work was to identify novel genetic causes of neurodevelopmental disease, inferred from CNVs detected by array comparative hybridization (aCGH), in a...
A New Mutation Causing Progressive Familiar Intrahepatic Cholestasis Type 3 in ...
Oliveira, HM; Pereira, C; Santos-Silva, E; Pinto-Basto, J; Vizcaíno, JR; Pessegueiro-Miranda, H"Background: Some patients exhibit features of both autoimmune hepatitis (AIH) and primary sclerosing cholangitis (PSC). Similarly, patients with progressive familial intrahepatic cholestasis type 3 (PFIC3) may share histological features with PSC. Case report: We report the case of a 22-year-old man who, since he was 5 years of age, has presented with pruritus, an approximately ninefold elevation of aminotrans...
Elevation of gamma-glutamyl transferase in adult: Should we think about progres...
Oliveira, HM; Pereira, C; Santos Silva, E; Pinto-Basto, J; Miranda, HBackground: There are three types of progressive familial intrahepatic cholestasis (PFIC). Type 3 is characterized by elevated gamma-glutamyl transferase (γ-GT) and it can be diagnosed in adolescence/adulthood. The genetic defect of PFIC 3 appears to explain the pathogenesis of intrahepatic cholestasis of pregnancy (ICP). Aims: Draw attention to this rare disease, especially in adulthood, and clarify the associ...
Clinical and Molecular Characterization of Diastrophic Dysplasia in the Portugu...
Barbosa, M; Sousa, AB; Medeira, A; Lourenço, T; Saraiva, J; Pinto-Basto, J; Soares, G; Fortuna, AM; Superti-Furga, A; Mittaz, L; Reis-Lima, M; Bonafé, LSLC26A2-related dysplasias encompass a spectrum of diseases: from lethal achondrogenesis type 1B (ACG1B; MIM #600972) and atelosteogenesis type 2 (AO2; MIM #256050) to classical diastrophic dysplasia (cDTD; MIM #222600) and recessive multiple epiphyseal dysplasia (rMED; MIM #226900). This study aimed at characterizing clinically, radiologically and molecularly 14 patients affected by non-lethal SLC26A2-related ...
A whole genome screen for association with multiple sclerosis in Portuguese pat...
Santos, M; Pinto-Basto, J; Rio, ME; Sá, MJ; Valença, A; Sá, A; Dinis, J; Figueiredo, J; Bigotte de Almeida, L; Coelho, I; Sawcer, S; Setakis, EMultiple sclerosis (MS) is common in Europe affecting up to 1:500 people. In an effort to identify genes influencing susceptibility to the disease, we have performed a population-based whole genome screen for association. In this study, 6000 microsatellite markers were typed in separately pooled DNA samples from MS patients (n=188) and matched controls (n=188). Interpretable data was obtained from 4661 of these...
Trinucleotide repeats in 202 families with ataxia: a small expanded (CAG)n alle...
Silveira, I; Miranda, C; Guimarães, L; Moreira, MC; Alonso, I; Mendonça, P; Ferro, A; Pinto-Basto, J; Coelho, J; Ferreirinha, F; Poirier, JBACKGROUND: Ten neurodegenerative disorders characterized by spinocerebellar ataxia (SCA) are known to be caused by trinucleotide repeat (TNR) expansions. However, in some instances the molecular diagnosis is considered indeterminate because of the overlap between normal and affected allele ranges. In addition, the mechanism that generates expanded alleles is not completely understood. OBJECTIVE: To examine the...
Trinucleotide repeats in 202 families with ataxia: a small expanded (CAG)n alle...
Silveira, I; Miranda, C; Guimarães, L; Moreira, MC; Alonso, I; Mendonça, P; Ferro, A; Pinto-Basto, J; Coelho, J; Ferreirinha, F; Poirier, J; Vale, JBACKGROUND: Ten neurodegenerative disorders characterized by spinocerebellar ataxia (SCA) are known to be caused by trinucleotide repeat (TNR) expansions. However, in some instances the molecular diagnosis is considered indeterminate because of the overlap between normal and affected allele ranges. In addition, the mechanism that generates expanded alleles is not completely understood. OBJECTIVE: To examine the...