S A Wudy
Affiliation: University of Ulm
- Profiling steroid hormones in amniotic fluid of midpregnancy by routine stable isotope dilution/gas chromatography-mass spectrometry: reference values and concentrations in fetuses at risk for 21-hydroxylase deficiencyS A Wudy
Department of Pediatrics, University of Ulm, Germany
J Clin Endocrinol Metab 84:2724-8. 1999..Our study provides the first mass spectrometric reference data on amniotic fluid steroid concentrations and underscores the high accuracy of prenatal hormonal diagnosis of 21-hydroxylase deficiency...
- Determination of 17-hydroxyprogesterone in plasma by stable isotope dilution/benchtop liquid chromatography-tandem mass spectrometryS A Wudy
Steroid Laboratory, Department of Pediatrics, University of Ulm, Germany
Horm Res 53:68-71. 2000..We expect that benchtop tandem mass spectrometry will open new avenues in clinical steroid analysis...
- Determination of 17alpha-hydroxypregnenolone in human plasma by routine isotope dilution mass spectrometry using benchtop gas chromatography-mass selective detectionS A Wudy
Steroid Laboratory, Department of Pediatrics, University of Ulm Prittwitzstr 43, D 89070, Ulm Donau, Germany
Steroids 66:759-62. 2001..3% and interassay precision CV was 5.6%. Requiring small amounts of plasma, the rapid, convenient work up and the application of bench top GC/MS instrumentation proved our method suitable for routine clinical use in adults and children...
- Clinical and metabolic findings in a 6-year-old boy with a Leydig cell tumourS Lignitz
Department of Pediatrics, Johannes Gutenberg University Medical School, Mainz, Germany
Acta Paediatr 100:e280-2. 2011..To analyse the urinary steroid metabolome in a boy who had true precocious puberty after a Leydig cell tumour...