PMID- 38322674 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20240210 IS - 2307-8960 (Print) IS - 2307-8960 (Electronic) IS - 2307-8960 (Linking) VI - 12 IP - 4 DP - 2024 Feb 6 TI - Gestational diabetes mellitus combined with fulminant type 1 diabetes mellitus, four cases of double diabetes: A case report. PG - 787-794 LID - 10.12998/wjcc.v12.i4.787 [doi] AB - BACKGROUND: Fulminant type 1 diabetes mellitus (FT1DM) that occurs during pregnancy or the perinatal period is known as pregnancy-related FT1DM (PF), always without history of abnormal glucose metabolism. Here, we present four patients who developed FT1DM during treatment but were first diagnosed with gestational diabetes mellitus (GDM). CASE SUMMARY: The clinical data of four patients with GDM combined with FT1DM admitted to our hospital between July 2018 and April 2021 were collected, and the patients and their infants were followed up. All patients were diagnosed with GDM during the second trimester and were treated. The blood glucose level elevated suddenly during the third trimester and then were diagnosed with FT1DM. Two patients had an insulin allergy, and two had symptoms of upper respiratory tract infection before onset. One patient developed ketoacidosis, and three developed ketosis. Two patients had cesarean section deliveries, and two had vaginal deliveries. The growth and development of the infants were normal. C-peptide levels were lower than those at onset, suggesting progressive impairment of islet function. The frequencies of the DRB1 09:01, DQB1 03: 03, DQA1 03:02, DPA1 01:03, DPA1 02:02, DPB1 05:01, DRB4 01:03, G 01:01, and G 01:04 human leukocyte antigen (HLA)-G alleles were high in the present study. CONCLUSION: In comparison with pregnancy-associated FT1DM (PF), patients with GDM combined with FT1DM had an older age of onset, higher body mass index, slower onset, fewer prodromal symptoms, and less acidosis. The pathogenesis may be due to various factors affecting the already fragile beta-cells of GDM patients with genetically susceptible class II HLA genotypes. We speculate that GDM combined with FT1DM during pregnancy, referred to as "double diabetes," is a subtype of PF with its own unique characteristics that should be investigated further. CI - (c)The Author(s) 2024. Published by Baishideng Publishing Group Inc. All rights reserved. FAU - Li, Hui AU - Li H AD - Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin 300052, China. FAU - Chai, Yun AU - Chai Y AD - Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin 300052, China. FAU - Guo, Wei-Hong AU - Guo WH AD - Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin 300052, China. FAU - Huang, Yu-Meng AU - Huang YM AD - Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin 300052, China. FAU - Zhang, Xiao-Na AU - Zhang XN AD - Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin 300052, China. FAU - Feng, Wen-Li AU - Feng WL AD - Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin 300052, China. FAU - He, Qing AU - He Q AD - Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin 300052, China. FAU - Cui, Jin AU - Cui J AD - Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin 300052, China. cuijin2001@163.com. FAU - Liu, Ming AU - Liu M AD - Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin 300052, China. LA - eng PT - Case Reports PL - United States TA - World J Clin Cases JT - World journal of clinical cases JID - 101618806 PMC - PMC10841125 OTO - NOTNLM OT - Case report OT - Double diabetes OT - Fulminant type 1 diabetes mellitus OT - Gestational diabetes mellitus OT - Pregnancy-related fulminant type 1 diabetes mellitus COIS- Conflict-of-interest statement: The authors declare that they have no conflict of interest. EDAT- 2024/02/07 06:42 MHDA- 2024/02/07 06:43 PMCR- 2024/02/06 CRDT- 2024/02/07 04:04 PHST- 2023/09/16 00:00 [received] PHST- 2023/12/13 00:00 [revised] PHST- 2024/02/10 00:00 [accepted] PHST- 2024/02/07 06:43 [medline] PHST- 2024/02/07 06:42 [pubmed] PHST- 2024/02/07 04:04 [entrez] PHST- 2024/02/06 00:00 [pmc-release] AID - 10.12998/wjcc.v12.i4.787 [doi] PST - ppublish SO - World J Clin Cases. 2024 Feb 6;12(4):787-794. doi: 10.12998/wjcc.v12.i4.787.