Tackling the Orexin Conundrum: An Optimized LC-MS/MS Method Demonstrates Accurate CSF Quantification and Absence in Peripheral Blood.

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Title: Tackling the Orexin Conundrum: An Optimized LC-MS/MS Method Demonstrates Accurate CSF Quantification and Absence in Peripheral Blood.
Authors: Cao Y; Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China.; Center of Clinical Mass Spectrometry, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China., Zhang Y; Xuanwu Hospital of Capital Medical University, 45 Changchun Street, Xicheng District, Beijing 100053, China., Han J; Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China.; Center of Clinical Mass Spectrometry, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China., Xu Z; Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China.; Center of Clinical Mass Spectrometry, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China., Zhang H; Xuanwu Hospital of Capital Medical University, 45 Changchun Street, Xicheng District, Beijing 100053, China., Yang Y; Xuanwu Hospital of Capital Medical University, 45 Changchun Street, Xicheng District, Beijing 100053, China., Wang D; Shanghai AB Sciex Analytical Instrument Trading Co., Ltd., Shanghai 201100, China., Zhai Y; Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China.; Center of Clinical Mass Spectrometry, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China., Zhan S; Xuanwu Hospital of Capital Medical University, 45 Changchun Street, Xicheng District, Beijing 100053, China., Li H; Xuanwu Hospital of Capital Medical University, 45 Changchun Street, Xicheng District, Beijing 100053, China., Cao Z; Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China.; Center of Clinical Mass Spectrometry, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China.
Source: Analytical chemistry [Anal Chem] 2026 May 26; Vol. 98 (20), pp. 14958-14966. Date of Electronic Publication: 2026 May 12.
Publication Type: Journal Article
Journal Info: Publisher: American Chemical Society Country of Publication: United States NLM ID: 0370536 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1520-6882 (Electronic) Linking ISSN: 00032700 NLM ISO Abbreviation: Anal Chem Subsets: MEDLINE
Database: MEDLINE Ultimate
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  Data: <searchLink fieldCode="AU" term="%22Cao+Y%22">Cao Y</searchLink>; Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China.; Center of Clinical Mass Spectrometry, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China.<br /><searchLink fieldCode="AU" term="%22Zhang+Y%22">Zhang Y</searchLink>; Xuanwu Hospital of Capital Medical University, 45 Changchun Street, Xicheng District, Beijing 100053, China.<br /><searchLink fieldCode="AU" term="%22Han+J%22">Han J</searchLink>; Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China.; Center of Clinical Mass Spectrometry, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China.<br /><searchLink fieldCode="AU" term="%22Xu+Z%22">Xu Z</searchLink>; Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China.; Center of Clinical Mass Spectrometry, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China.<br /><searchLink fieldCode="AU" term="%22Zhang+H%22">Zhang H</searchLink>; Xuanwu Hospital of Capital Medical University, 45 Changchun Street, Xicheng District, Beijing 100053, China.<br /><searchLink fieldCode="AU" term="%22Yang+Y%22">Yang Y</searchLink>; Xuanwu Hospital of Capital Medical University, 45 Changchun Street, Xicheng District, Beijing 100053, China.<br /><searchLink fieldCode="AU" term="%22Wang+D%22">Wang D</searchLink>; Shanghai AB Sciex Analytical Instrument Trading Co., Ltd., Shanghai 201100, China.<br /><searchLink fieldCode="AU" term="%22Zhai+Y%22">Zhai Y</searchLink>; Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China.; Center of Clinical Mass Spectrometry, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China.<br /><searchLink fieldCode="AU" term="%22Zhan+S%22">Zhan S</searchLink>; Xuanwu Hospital of Capital Medical University, 45 Changchun Street, Xicheng District, Beijing 100053, China.<br /><searchLink fieldCode="AU" term="%22Li+H%22">Li H</searchLink>; Xuanwu Hospital of Capital Medical University, 45 Changchun Street, Xicheng District, Beijing 100053, China.<br /><searchLink fieldCode="AU" term="%22Cao+Z%22">Cao Z</searchLink>; Department of Laboratory Medicine, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China.; Center of Clinical Mass Spectrometry, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital, Beijing 100026, China.
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  Data: <searchLink fieldCode="JN" term="%220370536%22">Analytical chemistry</searchLink> [Anal Chem] 2026 May 26; Vol. 98 (20), pp. 14958-14966. <i>Date of Electronic Publication: </i>2026 May 12.
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        Value: 10.1021/acs.analchem.6c00454
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              Text: 2026 May 26
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