PMID- 35437007 OWN - NLM STAT- MEDLINE DCOM- 20220420 LR - 20220716 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 12 IP - 1 DP - 2022 Apr 18 TI - Biochemical abnormalities among patients referred for celiac disease antibody blood testing in a primary health care setting. PG - 6407 LID - 10.1038/s41598-022-10492-6 [doi] LID - 6407 AB - To investigate possible biochemical abnormalities associated with celiac disease (CD) antibody positivity in a primary health care setting and thereby identify predictors that could potentially reduce diagnostic delay and underdiagnosis of CD. This observational cohort study included measurements of CD antibodies in the Copenhagen Primary Care Laboratory (CopLab) database from 2000 to 2015; CD antibody positivity was defined as tissue transglutaminase antibody IgA or IgG >/= 7 kU/L and/or deamidated gliadin peptide antibody IgG >/= 10 kU/L. Individuals with a prior diagnosis of CD were excluded. We examined differences between individuals with positive and negative CD antibody tests regarding the results of biochemical tests performed six months before and one month after the date of the CD antibody test. We identified 76,265 measurements of CD antibodies during 2000-2015, and 57,061 individuals met the inclusion criteria (706 antibody-positive and 56,355 antibody-negative). We found lower ferritin, hemoglobin, cobalamin and folic acid levels and higher levels of transferrin, ALAT (alanine transaminase), and alkaline phosphate among individuals with a positive CD antibody test. Furthermore, we illustrated more measurements below the sex-specific reference intervals for hemoglobin, mean corpuscular volume (MCV), mean corpuscular hemoglobin concentration (MCHC), ferritin, cobalamin and folic acid among individuals with a positive CD antibody test. This study identified several biochemical abnormalities associated with CD antibody positivity among individuals referred to CD antibody testing. The pattern of abnormalities suggested that micronutrient deficiencies were prevalent among CD antibody-positive individuals, confirming malabsorption as a sign of CD. These findings illustrate the possibility of reducing diagnostic delay and underdiagnosis of CD. CI - (c) 2022. The Author(s). FAU - Karhus, Line Lund AU - Karhus LL AD - Center for Clinical Research and Prevention, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Frederiksberg, Copenhagen, Denmark. line.lund.kaarhus@regionh.dk. FAU - Kriegbaum, Margit AU - Kriegbaum M AD - Copenhagen Primary Care Laboratory (CopLab) Database, Research Unit for General Practice and Section of General Practice, Department of Public Health, University of Copenhagen, Copenhagen, Denmark. FAU - Grand, Mia Klinten AU - Grand MK AD - Copenhagen Primary Care Laboratory (CopLab) Database, Research Unit for General Practice and Section of General Practice, Department of Public Health, University of Copenhagen, Copenhagen, Denmark. FAU - Lind, Bent Struer AU - Lind BS AD - Department of Clinical Biochemistry, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark. FAU - Mollehave, Line Tang AU - Mollehave LT AD - Center for Clinical Research and Prevention, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Frederiksberg, Copenhagen, Denmark. FAU - Rumessen, Juri J AU - Rumessen JJ AD - Department of Gastroenterology, Copenhagen University Hospital - Herlev and Gentofte, Copenhagen, Denmark. FAU - Andersen, Christen Lykkegaard AU - Andersen CL AD - Copenhagen Primary Care Laboratory (CopLab) Database, Research Unit for General Practice and Section of General Practice, Department of Public Health, University of Copenhagen, Copenhagen, Denmark. AD - Department of Hematology, Rigshospitalet, Copenhagen, Denmark. FAU - Linneberg, Allan AU - Linneberg A AD - Center for Clinical Research and Prevention, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Frederiksberg, Copenhagen, Denmark. AD - Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark. LA - eng PT - Journal Article PT - Observational Study PT - Research Support, Non-U.S. Gov't DEP - 20220418 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Autoantibodies) RN - 0 (Immunoglobulin A) RN - 0 (Immunoglobulin G) RN - 9007-73-2 (Ferritins) RN - 9007-90-3 (Gliadin) RN - 935E97BOY8 (Folic Acid) RN - EC 2.3.2.13 (Transglutaminases) RN - P6YC3EG204 (Vitamin B 12) SB - IM MH - Autoantibodies MH - *Celiac Disease MH - Delayed Diagnosis MH - Female MH - Ferritins MH - Folic Acid MH - Gliadin MH - Humans MH - Immunoglobulin A MH - Immunoglobulin G MH - Male MH - Primary Health Care MH - Sensitivity and Specificity MH - Transglutaminases MH - Vitamin B 12 PMC - PMC9016061 COIS- LLK has received honoraria for a lecture from ThermoFisher Scietific, the payment was made to Center for Clinical Research and Prevention. All other authors have no conflict of interest. EDAT- 2022/04/20 06:00 MHDA- 2022/04/21 06:00 PMCR- 2022/04/18 CRDT- 2022/04/19 05:40 PHST- 2021/10/13 00:00 [received] PHST- 2022/04/01 00:00 [accepted] PHST- 2022/04/19 05:40 [entrez] PHST- 2022/04/20 06:00 [pubmed] PHST- 2022/04/21 06:00 [medline] PHST- 2022/04/18 00:00 [pmc-release] AID - 10.1038/s41598-022-10492-6 [pii] AID - 10492 [pii] AID - 10.1038/s41598-022-10492-6 [doi] PST - epublish SO - Sci Rep. 2022 Apr 18;12(1):6407. doi: 10.1038/s41598-022-10492-6.