Erythrocyte glucose-6-phosphate dehydrogenase activity and risk of gestational diabetes

  • Parvaneh Asadi
  • Mahmood Vessal
  • Marjan Khorsand
  • Mohammad Ali TakhshidEmail author
Research article



Glucose-6-phosphate dehydrogenase (G6PD) is the regulating enzyme in the pentose phosphate pathway. A link between the activity of G6PD and diabetes mellitus has previously been reported. The association of G6PD activity with the pathogenesis of gestational diabetes mellitus (GDM) has not yet been investigated. The aim of the present study was to investigate the association of erythrocyte G6PD activity with major characteristics of GDM.


This case-control study was conducted at Hafez Hospital, Shiraz University of Medical Sciences, Shiraz, Iran from March to November 2017. Eighty-four age-matched pregnant women including GDM (n = 33), impaired glucose tolerance (IGT; n = 7), and normal glucose tolerance (NGT; n = 44) subjects were enrolled in this study. The levels of erythrocyte G6PD activity, fasting plasma glucose (FPG), insulin, malondialdehyde (MDA), and ferric reducing power (FRAP) of serum were measured. The level of homeostasis model for the assessment of insulin resistance (HOMA-IR) was calculated. The data were analyzed using SPSS software. P < 0.05 was considered statistically significant.


The values of FPG, insulin, HOMA-IR, G6PD activity, and FRAP were significantly higher in GDM patients compared to NGT subjects. G6PD activity was correlated with FPG ((r = 0.224; P = 0.041). Binary logistic regression analysis revealed independent association of body mass index >25.88 [OR = 3.23, 95% CI 1.071–9.75, P = 0.037], HOMA- IR >2.33 [OR = 7.15, 95% CI 2.26–22.56, P < 0.001], and G6PD activity>21.17 U/g Hb [OR = 4.63, 95% CI 1.49–14.38, P = 0.008] with an increased risk of GDM. No significant change was observed among serum MDA levels in the three groups.


The findings demonstrate that increased G6PD activity is positively associated with the risk of GDM.


Glucose-6-phosphate dehydrogenase Gestational diabetes Insulin resistance Oxidative stress 



This research was financially supported by a research grant from Shiraz Azad University.

Compliance with ethical standards

Conflict of interest

None declared.


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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Department of Molecular Biology-BiochemistryIslamic Azad UniversityShirazIran
  2. 2.Diagnostic Laboratory Sciences and Technology Research Center, Faculty of Paramedical SciencesShiraz University of Medical SciencesShirazIran

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