{"title":"The role of 5-hydroxyindoleacetic acid in neuroendocrine tumors: the journey so far","authors":"M. Ewang-Emukowhate, D. Nair, M. Caplin","doi":"10.2217/IJE-2019-0001","DOIUrl":null,"url":null,"abstract":"5-Hydroxyindole acetic acid (5-HIAA) is a surrogate marker for serotonin measurement and one of the first biochemical markers used in neuroendocrine tumors. In this review, we give a brief history of 5-HIAA and its precursor serotonin. We discuss its clinical utility and diagnostic performance in small intestinal neuroendocrine tumor and describe the challenges encountered during its analysis, historically performed in urine. The introduction of blood-based assays will help overcome some of the issues associated with its measurement in urine. The diagnostic performance of serum and plasma 5-HIAA has been shown to be comparable to that of urine 5-HIAA. Thus, analysis in either serum or plasma will provide a practical and convenient alternative to urine.","PeriodicalId":42691,"journal":{"name":"International Journal of Endocrine Oncology","volume":null,"pages":null},"PeriodicalIF":1.2000,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2217/IJE-2019-0001","citationCount":"12","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Endocrine Oncology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2217/IJE-2019-0001","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 12
Abstract
5-Hydroxyindole acetic acid (5-HIAA) is a surrogate marker for serotonin measurement and one of the first biochemical markers used in neuroendocrine tumors. In this review, we give a brief history of 5-HIAA and its precursor serotonin. We discuss its clinical utility and diagnostic performance in small intestinal neuroendocrine tumor and describe the challenges encountered during its analysis, historically performed in urine. The introduction of blood-based assays will help overcome some of the issues associated with its measurement in urine. The diagnostic performance of serum and plasma 5-HIAA has been shown to be comparable to that of urine 5-HIAA. Thus, analysis in either serum or plasma will provide a practical and convenient alternative to urine.
期刊介绍：
International Journal of Endocrine Oncology is a quarterly, peer-reviewed journal that helps the clinician to keep up to date with best practice in this fast-moving field. The journal highlights significant advances in basic and translational research, and places them in context for future therapy. The journal presents the latest research findings in diagnosis and management of endocrine cancer, together with authoritative reviews, cutting-edge editorials and perspectives that highlight hot topics and controversy in the field. Independent drug evaluations assess newly approved medications and their role in clinical practice. The journal welcomes the unsolicited submission of article proposals and original research manuscripts.
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