0000000000313261

AUTHOR

Ute Spiekerkoetter

0000-0002-5385-6705

showing 3 related works from this author

Newborn screening and disease variants predict neurological outcome in isovaleric aciduria.

2021

Isovaleric aciduria (IVA), a metabolic disease with severe (classic IVA) or attenuated phenotype (mild IVA), is included in newborn screening (NBS) programs worldwide. The long-term clinical benefit of screened individuals, however, is still rarely investigated. A national, prospective, observational, multi-center study of individuals with confirmed IVA identified by NBS between 1998 and 2018 was conducted. Long-term clinical outcomes of 94 individuals with IVA were evaluated, representing 73.4% (for classic IVA: 92.3%) of the German NBS cohort. In classic IVA (N = 24), NBS prevented untimely death except in one individual with lethal neonatal sepsis (3.8%) but did not completely prevent si…

MalePediatricsmedicine.medical_specialtyAdolescentNeurocognitive DisordersDisease03 medical and health sciencesYoung AdultCognitionNeonatal ScreeningMaintenance therapyGermanyGeneticsmedicineHumansProspective StudiesMetabolic diseaseChildAmino Acid Metabolism Inborn ErrorsGenetics (clinical)030304 developmental biology0303 health sciencesNewborn screeningNeonatal sepsisIsovaleryl-CoA Dehydrogenasebusiness.industry030305 genetics & heredityInfant NewbornInfantmedicine.diseasePrognosisIsovaleric AcidemiaPhenotypeChild PreschoolCohortFemalesense organsbusinessNeurocognitiveJournal of inherited metabolic diseaseREFERENCES
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Quantitative Acylcarnitine Profiling in Peripheral Blood Mononuclear Cells Using In Vitro Loading With Palmitic and 2-Oxoadipic Acids: Biochemical Co…

2005

Organic acid (OAD) and fatty acid oxidation disorders (FAOD) are inborn errors of metabolism often presenting with life-threatening metabolic decompensation followed by (irreversible) organ failure, and even death during catabolic state. Most of these diseases are considered as treatable, and metabolic decompensations can be avoided by early diagnosis and start of therapy. Confirmation of suspected diagnosis currently relies on enzymatic and mutation analyses and in vitro loading of palmitic acid in human skin fibroblast cultures. Furthermore, in some cases potentially life-threatening in vivo loading or fasting tests are still performed. In this study, we established a standardized in vitr…

MaleAdipatesPalmitic AcidPeripheral blood mononuclear cellMass SpectrometryMonocytesPalmitic acidBlood cellchemistry.chemical_compoundIn vivoCarnitinemedicineHumansChildBeta oxidationGlutaric aciduriaInfantMetabolismVenous bloodmedicine.anatomical_structurechemistryBiochemistryChild PreschoolPediatrics Perinatology and Child HealthFemaleMetabolism Inborn ErrorsPediatric Research
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Newborn screening for 3-methylcrotonyl-CoA carboxylase deficiency: population heterogeneity of MCCA and MCCB mutations and impact on risk assessment.

2006

New technology enables expansion of newborn screening (NBS) of inborn errors aimed to prevent adverse outcome. In conditions with a large share of asymptomatic phenotypes, the potential harm created by NBS must carefully be weighed against benefit. Policies vary throughout the United States, Australia, and Europe due to limited data on outcome and treatability of candidate screening conditions. We elaborated the rationale for decision making in 3-methylcrotonyl-coenzyme A (CoA) carboxylase deficiency (MCCD), which afflicts leucine catabolism, with reported outcomes ranging from asymptomatic to death. In Bavaria, we screened 677,852 neonates for 25 conditions, including MCCD, based on elevat…

ProbandMalemedicine.medical_specialtyGenotypePenetranceBiologyAsymptomaticRisk AssessmentCohort StudiesGenetic HeterogeneityNeonatal ScreeningInternal medicineGermanyGeneticsmedicineHumansExpressivity (genetics)Genetics (clinical)AllelesGeneticsNewborn screeningGenetic heterogeneityInfant Newborn3-Methylcrotonyl-CoA carboxylase deficiencymedicine.diseasePenetranceCarbon-Carbon LigasesInborn error of metabolismMutationFemalemedicine.symptomDeficiency DiseasesHuman mutation
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