PMID- 34498301 OWN - NLM STAT- MEDLINE DCOM- 20220328 LR - 20220328 IS - 1440-1746 (Electronic) IS - 0815-9319 (Linking) VI - 37 IP - 1 DP - 2022 Jan TI - Establishing the blood reference interval of pancreatic elastase-1: A prospective study. PG - 117-123 LID - 10.1111/jgh.15685 [doi] AB - BACKGROUND AND AIM: Pancreatic elastase-1 (PE-1) has been investigated in pancreatic disorders. However, the reference interval (RI) of PE-1 in blood remains unconfirmed. We aimed to establish the blood RI of PE-1 in an adult population. METHODS: In this prospective cross-sectional study, we enrolled 400 adults who had received the whole-body physical check-up program between May 1, 2019 and November 20, 2019. The serum and plasma PE-1 levels were measured by latex turbidimetric immunoassay in different storage conditions (fresh, refrigerated, and frozen). The 95% and 99% RI of PE-1 were calculated according to the Clinical & Laboratory Standards Institute guidelines. The correlations between PE-1 and other parameters were analyzed using multivariable regression models. Ultimately, 38 patients with acute pancreatitis were prospectively recruited as the validation cohort. RESULTS: The PE-1 levels in fresh serum were highly correlated with those in refrigerated (R(2) = 0.998) or frozen (R(2) = 0.942) samples; however, plasma should not be suggested in frozen conditions (plasma vs serum: R(2) = 0.185). In the RI study population (202 male & 198 female participants), the median age was 52.6 (25-75% interquartile range: 43.1-61.0). The 95% and 99% RIs of PE-1 were 30.0-221.0 and 22.0-359.0 ng/dL, respectively. Triglycerides (beta = 0.106, P = 0.033), lipase (beta = 0.154, P = 0.007), and CA19-9 (beta = 0.130, P = 0.008) were independent factors associated with PE-1. In the pancreatitis validation cohort, with a cut-off value of 359.0 ng/dL, the sensitivity and specificity were 100% and 99.8%, respectively. CONCLUSION: The RI of PE-1 established in this study can be used for further applications. Serum is the suggested form for frozen sample storage. CI - (c) 2021 Journal of Gastroenterology and Hepatology Foundation and John Wiley & Sons Australia, Ltd. FAU - Chi, Su-Fen AU - Chi SF AD - Department of Pathology and Laboratory Medicine, Taichung Veterans General Hospital, Taichung, Taiwan. FAU - Lai, Chia-Yeh AU - Lai CY AD - Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan. FAU - Dong, Wei-Ting AU - Dong WT AD - Department of Pathology and Laboratory Medicine, Taichung Veterans General Hospital, Taichung, Taiwan. FAU - Wang, Jiunn-Min AU - Wang JM AD - Department of Pathology and Laboratory Medicine, Taichung Veterans General Hospital, Taichung, Taiwan. FAU - Wang, Ya-Yu AU - Wang YY AD - Division of Family Medicine, Taichung Veterans General Hospital, Taichung, Taiwan. FAU - Yang, Sheng-Shun AU - Yang SS AUID- ORCID: 0000-0002-7665-0988 AD - Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan. AD - School of Medicine, Chung Shan Medical University, Taichung, Taiwan. AD - Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung, Taiwan. AD - Institute of Biomedical Sciences, National Chung Hsing University, Taichung, Taiwan. FAU - Lin, Jaw-Town AU - Lin JT AUID- ORCID: 0000-0001-9368-6141 AD - Digestive Medicine Center, China Medical University Hospital, Taichung, Taiwan. FAU - Lee, Teng-Yu AU - Lee TY AUID- ORCID: 0000-0002-4097-4315 AD - Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan. AD - School of Medicine, Chung Shan Medical University, Taichung, Taiwan. LA - eng GR - MOST 109-2327-B-039-001/Ministry of Science and Technology, Taiwan/ GR - DMR 109-215/China Medical University/ GR - Medicare Product Inc./ GR - TCVGH-1093302C/Biostatistics Task Force of Taichung Veterans General Hospital/ GR - Clinical Informatics Research & Development Center of Taichung Veterans General Hospital/ PT - Journal Article DEP - 20210929 PL - Australia TA - J Gastroenterol Hepatol JT - Journal of gastroenterology and hepatology JID - 8607909 RN - EC 3.4.21.36 (Pancreatic Elastase) SB - IM MH - Acute Disease MH - Adult MH - Cross-Sectional Studies MH - Female MH - Humans MH - Male MH - Middle Aged MH - *Pancreatic Elastase/blood MH - *Pancreatitis/blood/diagnosis MH - Prospective Studies MH - Reference Values MH - Sensitivity and Specificity OTO - NOTNLM OT - acute pancreatitis OT - biomarker OT - immunoreactive OT - pancreatic cancer EDAT- 2021/09/10 06:00 MHDA- 2022/03/29 06:00 CRDT- 2021/09/09 07:06 PHST- 2021/08/02 00:00 [revised] PHST- 2021/04/23 00:00 [received] PHST- 2021/08/30 00:00 [accepted] PHST- 2021/09/10 06:00 [pubmed] PHST- 2022/03/29 06:00 [medline] PHST- 2021/09/09 07:06 [entrez] AID - 10.1111/jgh.15685 [doi] PST - ppublish SO - J Gastroenterol Hepatol. 2022 Jan;37(1):117-123. doi: 10.1111/jgh.15685. Epub 2021 Sep 29.