Constitutional mosaicism in RASA1-related capillary malformation-arteriovenous malformation.

Capillary malformation-arteriovenous malformation (CM-AVM) is caused by germline RASA1 and EPHB4 alterations. RASA1 intralesional second hits have also been reported. Here we report RASA1 constitutional mosaicism, defined here as the presence of a mosaic variant in all cell types of an individual, in two patients with CM-AVM.

Antibacterial Activity of Hen Egg White Lysozyme Denatured by Thermal and Chemical Treatments.

The aim of this study was to increase the antibacterial spectrum of modified hen egg white lysozyme (HEWL) with thermal and chemical treatments against Gram-negative bacteria. The antibacterial activity of heat-denatured HEWL and chemical denatured HEWL against Gram-negative and Gram-positive bacteria was evaluated in 15 h of incubation tests. HEWL was denatured by heating at pH 6.

Whole exome sequencing using Ion Proton system enables reliable genetic diagnosis of inherited retinal dystrophies.

Inherited retinal dystrophies (IRD) comprise a wide group of clinically and genetically complex diseases that progressively affect the retina. Over recent years, the development of next-generation sequencing (NGS) methods has transformed our ability to diagnose heterogeneous diseases. In this work, we have evaluated the implementation of whole exome sequencing (WES) for the molecular diagnosis of IRD.

[Association of FTO gene polymorphisms and morbid obesity in the population of Extremadura (Spain)].

Objective: To select individuals whose morbid obesity can be attributed mainly to their individual genetic profile. After excluding patients with potential monogenic syndromes or diseases associated with obesity, we evaluated the association of the single nucleotide polymorphisms (SNPs) rs1861868 and rs9939609 of the fat-mass and obesity-associated FTO gene with an inherited predisposition to morbid obesity.

Patients And Methods: We evaluated 270 patients with morbid obesity and onset before the age of 14 years and selected 194 due to their phenotypes and family history; 289 control individuals were included.

Comprehensive SNP-chip for retinitis pigmentosa-Leber congenital amaurosis diagnosis: new mutations and detection of mutational founder effects.

Fast and efficient high-throughput techniques are essential for the molecular diagnosis of highly heterogeneous hereditary diseases, such as retinitis pigmentosa (RP). We had previously approached RP genetic testing by devising a chip based on co-segregation analysis for the autosomal recessive forms. In this study, we aimed to design a diagnostic tool for all the known genes (40 up to now) responsible for the autosomal dominant and recessive RP and Leber congenital amaurosis (LCA).