Career

• Korea National Health Institute, Student Researcher (1995 – 1996)
• KIST, Research Associate (1996 – 2002)
• MIT, Post-Doc (2002 – 2004)
• KIST, Principal Scientist (2004 – present)

Social Activities

• 1998-present Korean Chemical Society, Member
• 2004-present Korean Society for Mass Spectrometry, Lifetime Member
• 2005-present Korean Endocrine Society, Lifetime Member
• 2002-present American Society for Mass Spectrometry, Member
• 2005-present Endocrine Society, Active Member

Journal Activity

• 2013-present J. Steroid Biochem. Mol. Biol., Associate Editor
• 2018-present Molecular and Cellular Endocrinology, Board Member
• 2019-present Tohoku Journal of Experimental Medicine, Board Member

• Method development in chromatography-mass spectrometry based steroid profiling
• Biomarker discovery of hormone-dependent disorders
• Diagnosis and treatment in adrenal diseases
• Functional reproductive biology

Journals

1. Metabolic changes of serum steroids in diagnosis and subtyping of Cushing’s syndrome. J. Steroid Biochem. Mol. Biol., 210, 105856 (2021)
2. GC-MS-based metabolic signatures reveal comparative steroidogenic pathways between fetal and adult mouse testes. Andrology, 9, 400 (2021)
3. Simultaneous analysis of free and sulfated steroids using LC-MS with selective MS scan mode and polarity switching. Anal. Chem., 88, 11624 (2016)
4. Sex hormone establish a reserve pool of adult muscle stem cells. Nat. Cell. Biol., 18, 930 (2016)
5. 17,20-Lyase activity is associated with body fat mass in prepubertal girls. J. Clin. Endcorinol. Metabol., 101, 4653 (2016)