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Latest scientific articles
Farber disease (FD) is a rare autosomal recessive disease caused by mutations in the acid ceramidase gene (ASAH1). Low ceramidase activity results in the accumulation of fatty substances, mainly ceramides. Hallmark symptoms at clinical level are periarticular nodules, lipogranulomas, swollen and painful joints and a hoarse voice. FD phenotypes are heterogeneous varying from mild to very severe cases, with the patients not surviving past their first year of life. This study has the highest number of enrolled Farber patients and carriers reported to present. Liquid chromatography multiple reaction mass spectrometry (LC/MRM-MS) studies revealed that the ceramide C26:0 and especially its isoform 1 is a highly sensitive and specific biomarker for FD (p < 0.0001). The new biomarker can be determined directly in the dried blood spot extracts with low sample consumption. This allows for easy sample preparation, high reproducibility and use in high throughput screenings.
Epileptic encephalopathies represent a group of severe epileptic diseases with an early onset, characterized by severe electroencephalographic abnormalities and resistance to standard anti-epileptic treatment. According to the International League Against Epilepsy (ILAE) epileptic encephalopathies (EEs) are defined as conditions in which the epileptiform abnormalities are believed to contribute to progressive disturbance in cerebral function, e.g. developmental delay and intellectual disability.
Seckel syndrome is rare autosomal recessive disorder characterized by intrauterine growth retardation, dwarfism, microcephaly with mental retardation, and a characteristic 'bird-headed' facial appearance. The major feature of Seckel syndrome is associated autosomal recessive primary microcephaly (MCPH). Microcephaly is a neurodevelopmental condition characterized by microcephaly present at birth, decreased cerebral cortex size, and non-progressive mental retardation with the absence of visceral abnormalities.