Yuhei Koyama

Tochigi, Japan

Last Updated: 09/26/2026

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Found 9 publications

Challenging treatment of severe hypotension following tracheal intubation in a patient with primary hyperparathyroidism: A case report.

Challenging treatment of severe hypotension following tracheal intubation in a patient with primary hyperparathyroidism: A case report.

Journal: Medicine
Published: August 30, 2024

Early prevention of carrageenan-induced peripheral/spinal inflammation suppresses microglial hyperreactivity in the trigeminal spinal subnucleus caudalis and alleviates chronic facial nociception.

Early prevention of carrageenan-induced peripheral/spinal inflammation suppresses microglial hyperreactivity in the trigeminal spinal subnucleus caudalis and alleviates chronic facial nociception.

Journal: Heliyon
Published: July 16, 2024

Comparison of serum 25-hydroxyvitamin D levels between radioimmunoassay and liquid chromatography-tandem mass spectrometry in infants and postpartum women.

Comparison of serum 25-hydroxyvitamin D levels between radioimmunoassay and liquid chromatography-tandem mass spectrometry in infants and postpartum women.

Journal: Journal of pediatric endocrinology & metabolism : JPEM
Published: June 23, 2018

Serum 25-hydroxyvitamin D3 levels of one-month-old term infants in Tokyo using liquid chromatography tandem mass spectrometry.

Serum 25-hydroxyvitamin D3 levels of one-month-old term infants in Tokyo using liquid chromatography tandem mass spectrometry.

Journal: Acta paediatrica (Oslo, Norway : 1992)
Published: October 23, 2017

Classic and non-classic 21-hydroxylase deficiency can be discriminated from P450 oxidoreductase deficiency in Japanese infants by urinary steroid metabolites.

Classic and non-classic 21-hydroxylase deficiency can be discriminated from P450 oxidoreductase deficiency in Japanese infants by urinary steroid metabolites.

Journal: Clinical pediatric endocrinology : case reports and clinical investigations : official journal of the Japanese Society for Pediatric Endocrinology
Published: November 26, 2015

Urinary steroid profiling: a powerful method for the diagnosis of abnormal steroidogenesis.

Urinary steroid profiling: a powerful method for the diagnosis of abnormal steroidogenesis.

Journal: Expert review of endocrinology & metabolism
Published: May 01, 2014

Measurement of reference intervals for urinary free adrenal steroid levels in Japanese newborn infants by using stable isotope dilution gas chromatography/mass spectrometry.

Measurement of reference intervals for urinary free adrenal steroid levels in Japanese newborn infants by using stable isotope dilution gas chromatography/mass spectrometry.

Journal: Clinica chimica acta; international journal of clinical chemistry
Published: April 24, 2012

Two-step biochemical differential diagnosis of classic 21-hydroxylase deficiency and cytochrome P450 oxidoreductase deficiency in Japanese infants by GC-MS measurement of urinary pregnanetriolone/ tetrahydroxycortisone ratio and 11β-hydroxyandrosterone.

Two-step biochemical differential diagnosis of classic 21-hydroxylase deficiency and cytochrome P450 oxidoreductase deficiency in Japanese infants by GC-MS measurement of urinary pregnanetriolone/ tetrahydroxycortisone ratio and 11β-hydroxyandrosterone.

Journal: Clinical chemistry
Published: January 26, 2012

Free cortisol/cortisone ratio in pooled urine was increased after rapid-ACTH stimulation test under dexamethasone suppression.

Free cortisol/cortisone ratio in pooled urine was increased after rapid-ACTH stimulation test under dexamethasone suppression.

Journal: Endocrine journal
Published: October 20, 2011
Showing 1-9 of 9

Last Updated: 09/26/2026