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논문 기본 정보

자료유형
학술저널
저자정보
Shin Sunghwan (Department of Laboratory Medicine and Genetics Samsung Medical Center Sungkyunkwan University Schoo) Oh Hyeonju (Department of Laboratory Medicine and Genetics Samsung Medical Center Sungkyunkwan University Schoo) Park Hea Ree (Department of Neurology Ilsan Paik Hospital Inje University College of Medicine Goyang Korea) Joo Eun Yeon (Department of Neurology Samsung Medical Center Sungkyunkwan University School of Medicine Seoul Kor) Lee Soo-Youn (Department of Laboratory Medicine and Genetics Samsung Medical Center Sungkyunkwan University Schoo)
저널정보
대한진단검사의학회 Annals of Laboratory Medicine Annals of Laboratory Medicine 제41권 제1호
발행연도
2021.1
수록면
108 - 113 (6page)

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Melatonin and cortisol are clinically important for diagnosing sleep and mood disorders. We developed and validated a liquid chromatography-tandem mass spectrometry (LC-MS/MS) assay for simultaneous measurement of salivary melatonin and cortisol concentrations according to the Clinical and Laboratory Standards Institute guidelines. Additionally, we compared the LC-MS/MS assay with immunoassays, ELISA (Direct Salivary Melatonin Elisa EK-DSM, Buhlmann Laboratories AG, Schonenbuch, Switzerland) and electrochemiluminescence immunoassay (Cortisol II, Roche, Mannheim, Germany), using 121 saliva samples. The LC-MS/MS assay exhibited good performance in terms of linearity, precision, accuracy, limit of detection, lower limit of quantification, extraction recovery, carry-over, and matrix effect. The LC-MS/MS assay and immunoassays showed strong correlation (Pearson’s r=0.910 for melatonin, r=0.955 for cortisol), but demonstrated a significant mean bias of 23.2% (range 54.0?143.7%) for melatonin and 48.9% (range 59.7?184.7%) for cortisol. Our LC-MS/MS assay provided more sensitive and reliable salivary melatonin and cortisol quantification results compared with immunoassays.

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