Johannes M.W. van den Ouweland

Maternally inherited diabetes and deafness is a distinct subtype of diabetes and associates with a single point mutation in the mitochondrial tRNA Leu(UUR) gene

Johannes M.W. van den Ouweland, H.H.P.J. Lemkes, Richard C. Trembath et al. · Diabetes · 1994 · 211 citations

Life Sciences, Genetics, Molecular Genetics +17

Measurement of 25-OH-vitamin D in human serum using liquid chromatography tandem-mass spectrometry with comparison to radioimmunoassay and automated immunoassay

Johannes M.W. van den Ouweland, Antonius M. Beijers, Pierre N.M. Demacker et al. · Journal of Chromatography B · 2010 · 149 citations

Medicine, Biochemistry, Endocrinology +16

The Diabetes-associated 3243 Mutation in the Mitochondrial tRNALeu(UUR) Gene Causes Severe Mitochondrial Dysfunction without a Strong Decrease in Protein Synthesis Rate

George M. C. Janssen, J. A. Maassen, Johannes M.W. van den Ouweland · Journal of Biological Chemistry · 1999 · 86 citations · Full text

Life Sciences, Genetics, Molecular Biology +17

Multicenter comparison study of current methods to measure 25-hydroxyvitamin D in serum

Marcel J.W. Janssen, Jos P.M. Wielders, Corinne C. Bekker et al. · Steroids · 2012 · 81 citations

Life Sciences, Nutritional Sciences, Dietary Assessment +13

Overestimation of 25-hydroxyvitamin D3 by increased ionisation efficiency of 3-epi-25-hydroxyvitamin D3 in LC–MS/MS methods not separating both metabolites as determined by an LC–MS/MS method for separate quantification of 25-hydroxyvitamin D3, 3-epi-25-hydroxyvitamin D3 and 25-hydroxyvitamin D2 in human serum

Johannes M.W. van den Ouweland, Antonius M. Beijers, Henny van Daal · Journal of Chromatography B · 2014 · 79 citations

Life Sciences, Biochemistry, Mass Spectrometric Analysis +11