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Demeuse J, Huyghebaert L, Determe W, Schoumacher M, Grifnée E, Massonnet P, Dubrowski T, Rechchad M, Segura JF, Peeters S, Cavalier E, Le Goff C. Development and validation of an LC-MS/MS method for the simultaneous quantitation of angiotensin (1-7), (1-8), (1-9) and (1-10) in human plasma. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1232:123943. [PMID: 38039597 DOI: 10.1016/j.jchromb.2023.123943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 11/20/2023] [Accepted: 11/22/2023] [Indexed: 12/03/2023]
Abstract
Cardiovascular diseases have cast a significant negative impact on the lives of millions worldwide. Over the years, extensive efforts have been dedicated to enhancing diagnostic and prognostic tools for these diseases. A growing body of evidence indicates that the angiotensin convertase enzyme (ACE) and the angiotensin convertase enzyme 2 (ACE2), and angiotensin peptide levels could hold a pivotal role in assisting clinicians with the management of cardiovascular conditions, notably hypertension and heart failure. However, despite the considerable body of knowledge in this domain, a void remains in the field of analytical methodologies for these molecules. In this study, we present a fully validated LC-MS/MS method for the precise quantitation of plasma angiotensin (1-7), (1-8), (1-9), and (1-10), following the guidelines set by the Clinical and Laboratory Standards Institute (CLSI). Our method not only enables the accurate quantification of angiotensin peptides but also provides a means to assess ACE and ACE2 activity. Remarkably, our method achieved a Lower Limit of Measurement Interval (LLMI) as low as 5 pg/mL. This has enabled the detection of angiotensin (1-7), (1-8), (1-9) and (1-10) and the accurate quantitation of angiotensin (1-7), (1-8) and (1-10) in all analyzed groups, including healthy controls, patients with high blood pressure, and patients with chronic kidney disease. To our knowledge, our method represents the most sensitive approach allowing for simultaneous quantitation of these four angiotensin peptides. A distinct advantage of our method, when compared to immunoassays, is its high sensitivity combined with comprehensive chromatographic separation of all currently known angiotensin peptides. This combination translates to an exceptional level of selectivity, underscoring the value and potential of our methodology in advancing cardiovascular disease research.
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Affiliation(s)
- Justine Demeuse
- Department of Clinical Chemistry, CIRM, University of Liège, Belgium
| | - Loreen Huyghebaert
- Department of Clinical Chemistry, University Hospital of Liège, Belgium.
| | - William Determe
- Department of Clinical Chemistry, CIRM, University of Liège, Belgium
| | | | - Elodie Grifnée
- Department of Clinical Chemistry, University Hospital of Liège, Belgium
| | | | - Thomas Dubrowski
- Department of Clinical Chemistry, University Hospital of Liège, Belgium
| | - Marwa Rechchad
- Department of Clinical Chemistry, University Hospital of Liège, Belgium
| | | | - Stéphanie Peeters
- Department of Clinical Chemistry, University Hospital of Liège, Belgium
| | - Etienne Cavalier
- Department of Clinical Chemistry, CIRM, University of Liège, Belgium; Department of Clinical Chemistry, University Hospital of Liège, Belgium
| | - Caroline Le Goff
- Department of Clinical Chemistry, CIRM, University of Liège, Belgium; Department of Clinical Chemistry, University Hospital of Liège, Belgium
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Demeuse JJ, Calaprice C, Huyghebaert LC, Rechchad M, Peeters S, Cavalier E, Le Goff C. Development and Validation of an Ultrasensitive LC-MS/MS Method for the Quantification of Melatonin in Human Saliva. J Am Soc Mass Spectrom 2023. [PMID: 37130062 DOI: 10.1021/jasms.3c00021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
A growing body of literature describes the potential effects of circadian disruption on human health. Indeed, psychiatric diseases, metabolic syndrome, and cancers may be linked to disturbance of the circadian rhythm. Currently, the best practice to assess circadian rhythm is the measurement of melatonin levels. Our goal was thus to develop and validate a highly sensitive LC-MS/MS method to follow salivary melatonin levels throughout the day and night. Our method reached a lower limit of the measuring interval (LLMI) of 0.8 pg/mL. To our knowledge, it is the most sensitive method allowing quantitation of melatonin in saliva. Saliva, obtained from passive drooling or salivette, was extracted by an efficient and quick liquid-liquid extraction with no further cleanup needed. The method was validated according to the European Medicines Agency (EMA) guidelines and provided excellent results regarding accuracy, precision, linearity, selectivity, and specificity. Comparison between radioimmunoassay and our method was performed and showed differences at low levels, most likely due to cross-reactivity with other indols. To assess daytime melatonin levels in humans, salivary melatonin levels of ten volunteers were monitored throughout the day and showed lower daytime levels than reported in previous studies.
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Affiliation(s)
- Justine J Demeuse
- Laboratory of Clinical Chemistry, CIRM, University of Liège, 4000 Liège, Belgium
| | - Chiara Calaprice
- Department of Clinical Chemistry, CHU Liège, 4000 Liège, Belgium
| | | | - Marwa Rechchad
- Department of Clinical Chemistry, CHU Liège, 4000 Liège, Belgium
| | | | - Etienne Cavalier
- Laboratory of Clinical Chemistry, CIRM, University of Liège, 4000 Liège, Belgium
- Department of Clinical Chemistry, CHU Liège, 4000 Liège, Belgium
| | - Caroline Le Goff
- Laboratory of Clinical Chemistry, CIRM, University of Liège, 4000 Liège, Belgium
- Department of Clinical Chemistry, CHU Liège, 4000 Liège, Belgium
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