Yuhei Koyama Selected Research

heptafluorobutyric anhydride

1/2013	Measurement of reference intervals for urinary free adrenal steroid levels in Japanese newborn infants by using stable isotope dilution gas chromatography/mass spectrometry.
1/2011	Free cortisol/cortisone ratio in pooled urine was increased after rapid-ACTH stimulation test under dexamethasone suppression.

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Yuhei Koyama Research Topics

Disease

2	Congenital adrenal hyperplasia due to 21 hydroxylase deficiency 04/2016 - 04/2012
2	Sudden Infant Death (SID) 01/2013 - 01/2011
1	Carcinoma (Carcinomatosis) 05/2014
1	Antley-Bixler Syndrome Phenotype 04/2012

Drug/Important Bio-Agent (IBA)

4	SteroidsIBA 04/2016 - 01/2011
2	pregnanetrioloneIBA 04/2016 - 04/2012
2	IsotopesIBA 01/2013 - 01/2011
2	heptafluorobutyric anhydrideIBA 01/2013 - 01/2011
1	Oxidoreductases (Dehydrogenase)IBA 04/2016
1	Hydrocortisone (Cortisol)FDA LinkGeneric 04/2016
1	TetrahydrocortisoneIBA 04/2016
1	EnzymesIBA 05/2014
1	21-deoxycortisolIBA 01/2013
1	21-deoxycortisoneIBA 01/2013
1	Androstenedione (4 Androstene 3,17 dione)IBA 01/2013
1	Dehydroepiandrosterone (DHEA)IBA 01/2013
1	PregnenoloneIBA 01/2013
1	Progesterone FDA LinkGeneric 01/2013
1	Adrenocorticotropic Hormone (ACTH)FDA Link 01/2011