PMID- 32568883 OWN - NLM STAT- MEDLINE DCOM- 20210413 LR - 20221005 IS - 1533-404X (Electronic) IS - 0195-7910 (Print) IS - 0195-7910 (Linking) VI - 41 IP - 4 DP - 2020 Dec TI - Reliable Postmortem Molecular Diagnosis of Anaphylaxis: Co-localization of Mast Cell Degranulation and Immunoglobulin E in Allergic Throat Tissues. PG - 249-258 LID - 10.1097/PAF.0000000000000572 [doi] AB - Anaphylaxis is a serious reaction that may cause death in half an hour without diagnostic characteristic in autopsies. Mast cell (MC) degranulation combined with immunoglobulin E (IgE) plays the key roles in anaphylaxis. Unavailability of serum and instability of measured serum in postmortem diagnoses sometimes limit the opinion of medical experts. Allergic tissues are more accessible than serum, and there is a little research on degranulated mast cells and IgE in different human tissues, whereas we hardly know whether the expression will keep stable over the increasing postmortem interval (PMI). In this research, we examined the mast cell counts and degranulation rates and gE contents in human throat, lung, and intestine tissues and preliminarily investigated the correlation of these markers with PMI in anaphylaxis-associated death. Allergic samples showed a significant increase in mast cell degranulation accompanied by an increase in IgE levels than the control group, but the expression was not significantly correlated with increasing PMI only in throat tissues. Elevated mast cell degranulation combined with increased IgE levels may be a reliable biomarker for forensic diagnosis of human tissues due to IgE-mediated allergic sudden death. FAU - Wang, Xiaoyan AU - Wang X AD - From the Department of General Pathology, The First Affiliated Hospital, School of Medicine, Yangtze University, Jingzhou, Hubei Province. FAU - Yin, Chuanchang AU - Yin C AD - From the Department of General Pathology, The First Affiliated Hospital, School of Medicine, Yangtze University, Jingzhou, Hubei Province. FAU - Su, Xue AU - Su X AD - Institute of Clinical Pathology, Medical College of Shantou University, Shantou, Guangdong Province, China. FAU - Su, Min AU - Su M AD - Institute of Clinical Pathology, Medical College of Shantou University, Shantou, Guangdong Province, China. LA - eng PT - Journal Article PL - United States TA - Am J Forensic Med Pathol JT - The American journal of forensic medicine and pathology JID - 8108948 RN - 37341-29-0 (Immunoglobulin E) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Anaphylaxis/*pathology MH - Case-Control Studies MH - *Cell Degranulation MH - Child MH - Child, Preschool MH - Female MH - Humans MH - Immunoglobulin E/*metabolism MH - Immunohistochemistry MH - Infant MH - Infant, Newborn MH - Intestinal Mucosa/metabolism/pathology MH - Larynx/metabolism/pathology MH - Lung/pathology MH - Male MH - Mast Cells/*pathology MH - Middle Aged MH - Pharynx/metabolism/*pathology MH - *Postmortem Changes MH - Young Adult PMC - PMC7668346 COIS- The authors report no conflict of interest. EDAT- 2020/06/23 06:00 MHDA- 2021/04/14 06:00 PMCR- 2020/11/16 CRDT- 2020/06/23 06:00 PHST- 2020/06/23 06:00 [pubmed] PHST- 2021/04/14 06:00 [medline] PHST- 2020/06/23 06:00 [entrez] PHST- 2020/11/16 00:00 [pmc-release] AID - 00000433-202012000-00003 [pii] AID - PAF50427 [pii] AID - 10.1097/PAF.0000000000000572 [doi] PST - ppublish SO - Am J Forensic Med Pathol. 2020 Dec;41(4):249-258. doi: 10.1097/PAF.0000000000000572.