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Subcutaneous immunotherapy with aeroallergens-evaluation of adherence in real life

Lourenço, T; Fernandes, M; Coutinho, C; Lopes, A; Spinola Santos, A; Neto, M; Pereira Barbosa, M

Introduction. Adherence in allergen immunotherapy is crucial for its efficacy. At least 3 years of treatment are recommended for achieving a long-term modifying effect. Objectives. To assess patient’s adherence and to identify determinant factors for allergen subcutaneous immunotherapy (SCIT) suspension in patients with respiratory allergy. Methods. Retrospective analysis of the medical record of patients submi...


LAMA2 gene mutation update: Toward a more comprehensive picture of the laminin-...

Oliveira, J; Gruber, A; Cardoso, M; Taipa, R; Fineza, I; Gonçalves, A; Laner, A; Winder, TL; Schroeder, J; Rath, J; Oliveira, ME; Vieira, E; Sousa, AP

Congenital muscular dystrophy type 1A (MDC1A) is one of the main subtypes of early-onset muscle disease, caused by disease-associated variants in the laminin-α2 (LAMA2) gene. MDC1A usually presents as a severe neonatal hypotonia and failure to thrive. Muscle weakness compromises normal motor development, leading to the inability to sit unsupported or to walk independently. The phenotype associated with LAMA2 de...


Arabidopsis thaliana SPF1 and SPF2 are nuclear-located ULP2-like SUMO proteases...

Castro, P; Santos, M; Freitas, S; Cana-Quijada, P; Lourenço, T; Rodrigues, M; Fonseca, F; Ruiz-Albert, J; Azevedo, JE; Tavares, R; Castillo, A

Post-translational modifiers such as the small ubiquitin-like modifier (SUMO) peptide act as fast and reversible protein regulators. Functional characterization of the sumoylation machinery has determined the key regulatory role that SUMO plays in plant development. Unlike components of the SUMO conjugation pathway, SUMO proteases (ULPs) are encoded by a relatively large gene family and are potential sources of...


Effects of the functional HOTAIR rs920778 and rs12826786 genetic variants in gl...

Xavier-Magalhães, A; Oliveira, AI; Vieira de Castro, J; Pojo, M; Gonçalves, CS; Lourenço, T; Viana-Pereira, M; Costa, S; Linhares, P; Vaz, R; Nabiço, R

Abnormal expression of the long non-coding RNA HOX transcript antisense intergenic RNA (HOTAIR) is oncogenic in several human cancers, including gliomas. The HOTAIR single nucleotide polymorphisms (SNPs) rs920778 (C > T) and rs12826786 (C > T) present in the intronic enhancer and promoter regions of HOTAIR, respectively, are associated with expression, cancer susceptibility, and patient prognosis in some tumor ...


Molecular Characterization of a Rare Analphoid Supernumerary Marker Chromosome ...

Marques, B; Ferreira, C; Brito, F; Pedro, S; Alves, C; Lourenço, T; Amorim, M; Correia, H

Analphoid supernumerary marker chromosomes (aSMC) constitute one of the smallest groups of SMC, and are characterized by a centromeric constriction but no detectable alpha-satellite DNA. These marker chromosomes cannot be properly identified by conventional banding techniques alone, and molecular cytogenetic methods are necessary for a detailed characterization. Analphoid SMC derived from chromosome 7 are extre...


Modulation of oligodendrocyte differentiation and maturation by combined bioche...

Lourenço, T; Faria, JP; Bippes, C; Maia, J; Lopes-Da-Silva, J; Relvas, JB; Graõs, M

Extracellular matrix (ECM) proteins play a key role during oligodendrogenesis. While fibronectin (FN) is involved in the maintenance and proliferation of oligodendrocyte progenitor cells (OPCs), merosin (MN) promotes differentiation into oligodendrocytes (OLs). Mechanical properties of the ECM also seem to affect OL differentiation, hence this study aimed to clarify the impact of combined biophysical and bioche...


Urinary Tract Effects of HPSE2 Mutations

Stuart, H; Roberts, N; Hilton, E; McKenzie, E; Daly, S; Hadfield, K; Rahal, J; Gardiner, N; Tanley, S; Lewis, M; Sites, E; Angle, B; Alves, C

Urofacial syndrome (UFS) is an autosomal recessive congenital disease featuring grimacing and incomplete bladder emptying. Mutations of HPSE2, encoding heparanase 2, a heparanase 1 inhibitor, occur in UFS, but knowledge about the HPSE2 mutation spectrum is limited. Here, seven UFS kindreds with HPSE2 mutations are presented, including one with deleted asparagine 254, suggesting a role for this amino acid, which...


Variant Rett Syndrome in a Girl with a Pericentric X-Chromosome Inversion Leadi...

Vieira, JP; Lopes, F; Silva-Fernandes, A; Sousa, MV; Moura, S; Sousa, S; Costa, BM; Barbosa, M; Ylstra, B; Temudo, T; Lourenço, T; Maciel, P

Rett syndrome is a neurodevelopmental disorder caused by mutations in the MECP2 gene. We investigated the genetic basis of disease in a female patient with a Rett-like clinical. Karyotype analysis revealed a pericentric inversion in the X chromosome -46,X,inv(X)(p22.1q28), with breakpoints in the cytobands where the MECP2 and CDKL5 genes are located. FISH analysis revealed that the MECP2 gene is not dislocated ...


Deletions within COL11A1 in Type 2 Stickler Syndrome Detected by Multiplex Liga...

Vijzelaar, R; Waller, S; Errami, A; Donaldson, A; Lourenço, T; Rodrigues, M; McConnell, V; Fincham, G; Snead, M; Richards, A

Background: COL11A1 is a large complex gene around 250 kb in length and consisting of 68 exons. Pathogenic mutations in the gene can result in Stickler syndrome, Marshall syndrome or Fibrochondrogenesis. Many of the mutations resulting in either Stickler or Marshall syndrome alter splice sites and result in exon skipping, which because of the exon structure of collagen genes usually leaves the message in-frame....


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