1. Articles on neurology


The goal of genetic testing for hereditary neurological diseases is to determine whether or not a patient has the disease, or is likely to develop it. Determining the molecular cause of a neurological disease can open the door to individually tailored treatment and medical care, and allow families to avoid invasive and often costly testing and procedures.

Articles on neurology

  • Spinocerebellar ataxias (SCA) comprehesive panel

    Spinocerebellar ataxias (SCA) are a group of hereditary neurological disorders characterized by slowly progressive ataxia accompanied by cerebellar degeneration. Ataxia is gait imbalance associated with limb incoordination and loss of fine and gross motor control. The most common types of SCA are…

  • SMN-negative spinal muscular atrophy panel

    Spinal muscular atrophies (SMAs) are hereditary degenerative disorders of lower motor neurons associated with progressive muscle weakness and atrophy. The onset of muscle weakness ranges from the prenatal period to adolescence or young adulthood, with infantile-onset SMA being the most common…

  • HTRA2 Defect: a recognizable inborn error of metabolism

    Neonatal-onset movement disorders, especially in combination with seizures, are rare and often related to mitochondrial disorders. 3-methylglutaconic aciduria (3-MGA-uria) is a marker for mitochondrial dysfunction. In particular, consistently elevated urinary excretion of 3-methylglutaconic acid is…

  • A variant in NUDT2 causes a recessive neurodevelopmental disorder

    A recent study on 337 patients with various forms of intellectual disability proposed the homozygous nonsense variant c.34C>T (p.Arg12*) in NUDT2 to underlie global developmental delay in 2 affected sisters.

  • Fragile X syndrome genetic testing

    Fragile X syndrome (FXS) is the most common cause of inherited intellectual disability and one of the leading causes of monogenic forms of autism. FXS is a repeat disorder caused by the expansion and methylation of CGG trinucleotide repeats in the FMR1 gene to over 200 repeats (Normal allele = 44…