Monogenic diabetes variants in Emirati women with gestational diabetes are associated with risk of non-autoimmune diabetes within 5 years after pregnancy

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  • Hinda Daggag
  • Anette P. Gjesing
  • Alshafi Mohammad
  • Ängquist, Lars
  • Bindu Shobi
  • Suma Antony
  • Dalia Haj
  • Alia Al Tikriti
  • Adam Buckley
  • Hansen, Torben
  • Maha T Barakat

AIMS: To investigate the prevalence of pathogenic variants in monogenic diabetes genes in Emirati women with gestational diabetes (GDM) and examine the risk of developing hyperglycemia during follow-up in carriers and non-carriers.

METHODS: Female patients with GDM (n = 370) were identified. Selected monogenic diabetes genes, GCK, HNF1A, HNF4A, HNF1B, INS, ABCC8 and KCNJ1I, were examined by sequencing and identified variants were classified. Anthropometrics and subsequent diagnosis of diabetes were extracted from hospital records. Median follow-up time was 6-years.

RESULTS: A total of 34 variants were detected. Seven women (2%) were carriers of pathogenic variants in GCK, HNF1A, INS, ABCC8 or KCNJ11. A significantly larger fraction of women carrying pathogenic variants were diagnosed with any form of hyperglycemia or diabetes postpartum (risk ratio = 1.8 (1.1-2.9), p = 0.02) or 2.5 (1.3-4.8; p = 0.009), respectively) and they had a shorter disease-free period after GDM compared to women without such variants. There were no significant associations between carrying pathogenic variants and anthropometric measures or C-peptide.

CONCLUSIONS: Pathogenic variants were found in known monogenic diabetes genes in two percent of Emirati women with GDM, allowing for precision medicine utilisation in these women both during and outside pregnancy. Carriers were at an increased risk of being diagnosed with hyperglycemia or type 2 diabetes mellitus within 5 years after pregnancy.

Original languageEnglish
Article number100213
JournalMetabolism open
Number of pages7
Publication statusPublished - 2022

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© 2022 The Authors.

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