0000000000193367

AUTHOR

Valeria Chiavetta

0000-0002-9101-6440

showing 4 related works from this author

Exome sequencing in a child with neurodevelopmental disorder and epilepsy: Variant analysis of the AHNAK2 gene

2022

Background The AHNAK2 gene encodes a large nucleoprotein expressed in several tissues, including brain, squamous epithelia, smooth muscle, and neuropil. Its role in calcium signaling has been suggested and to date, clear evidence about its involvement in the pathogenesis of clinical disorders is still lacking. Methods Here, we report a female 24-year-old patient diagnosed with a cardio-facio-cutaneous-like phenotype (CFC-like), characterized by epilepsy, psychomotor development delay, atopic dermatitis, congenital heart disease, hypotonia, and facial dysmorphism, who is compound heterozygote for two missense mutations in the AHNAK2 gene detected by exome sequencing. Results This patient had…

Heart Defects CongenitalAHNAK2 borderline intellectual functioning epilepsy facio-cardio-cutaneous-like phenotype NGS exomefacio-cardio-cutaneous-like phenotypeFaciesNGS exomeSettore MED/39 - Neuropsichiatria InfantileFailure to ThriveNucleoproteinsEctodermal DysplasiaNeurodevelopmental DisordersAHNAK2borderline intellectual functioningGeneticsHumansepilepsyExomeFemaleMolecular BiologyGenetics (clinical)Molecular Genetics & Genomic Medicine
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Comparative multiplex dosage analysis in spinocerebellar ataxia type 2 patients.

2013

We developed a new application of comparative multiplex dosage analysis (CMDA) for evaluation of the ataxin 2 gene. Expansions of the triplet CAG can cause spinocerebellar ataxia type 2 (SCA2), a neurodegenerative disease with an autosomal-dominant mode of inheritance. Molecular diagnosis of SCA2 is routinely based on the use of conventional PCR to detect the CAG expansion. However, PCR does not amplify an allele with an expansion of many triplets (>80), which is typically found in infantile and juvenile forms of SCA2, thus leading to false negatives. We propose the analysis of the ATXN2 gene by CMDA to complement existing methods currently used for the detection of large expansions of the …

Malecongenital hereditary and neonatal diseases and abnormalitiesGenotypeGene DosagePrenatal diagnosisNerve Tissue ProteinsDiseaseAtaxin 2 Spinocerebellar ataxia type 2 Quantitative PCR Autosomal dominant Prenatal diagnosisSettore BIO/13 - Biologia ApplicataGeneticsMedicineHumansSpinocerebellar AtaxiasMultiplexAlleleMolecular BiologyGeneAllelesGeneticsbusiness.industryGeneral Medicinemedicine.diseaseReal-time polymerase chain reactionAtaxinsAtaxinCase-Control StudiesSpinocerebellar ataxiaFemalebusinessTrinucleotide Repeat ExpansionMultiplex Polymerase Chain ReactionGenetics and molecular research : GMR
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A novel splice acceptor site mutation in the ATP2A2 gene in a family with Darier disease

2016

This study identifies a novel spice site mutation in the ATP2A gene in a family with the Darier disease

gene ATP2A2 splicing site mutation Darier
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Multiplex ligation-dependent probe amplification detection of an unknown large deletion of the CREB-binding protein gene in a patient with Rubinstein…

2013

Rubinstein-Taybi syndrome is a rare autosomal dominant congenital disorder characterized by postnatal growth retardation, psychomotor developmental delay, skeletal anomalies, peculiar facial morphology, and tumorigenesis. Mutations in the gene encoding the cAMP response element-binding protein (CREB, also known as CREBBP or CBP) on chromosome 16p13.3 have been identified. In addition, some patients with low intelligence quotients and autistic features bear large deletions. Based on these observations, we used multiplex ligation-dependent probe amplification to search for large deletions affecting the CREBBP gene in a Rubinstein-Taybi syndrome patient. We identified a novel heterozygote dele…

HeterozygoteCREBExonSettore BIO/13 - Biologia ApplicataGeneticsmedicineHumansMultiplexMultiplex ligation-dependent probe amplificationGenetic TestingCREB-binding proteinMolecular BiologyGeneGeneticsRubinstein-Taybi SyndromeRubinstein–Taybi syndromebiologyMultiplex ligation-dependent probe amplification Comparative multiplex dosage analysis CREB-binding protein Rubinstein-Taybi syndromeHeterozygote advantageGeneral Medicinemedicine.diseaseMolecular biologyCREB-Binding ProteinChild Preschoolbiology.proteinFemaleMultiplex Polymerase Chain ReactionGene Deletion
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