Antioxidant Vitamins and Lipoperoxidation in Non-pregnant, Pregnant, and Gestational Diabetic Women: Erythrocytes Osmotic Fragility Profiles

Mohd Suhail, Shridhar Patil, Salma Khan, Sana Siddiqui


Background: Inconsistent reports are available in the literature regarding the oxidative status and antioxidant capacity during the pathogenesis of gestational diabetes. Present study was aimed to evaluate oxidative stress during the development of gestational diabetes and to evaluate antioxidant capability in non-pregnant (control), pregnant and gestational diabetics.

Methods: The study consisted of non-pregnant, healthy pregnant and patients suffering from gestational diabetes mellitus (GDM). Each group consisted of 23 women. We compared their oxidative and anti-oxidative system in blood. Their blood malondialdehyde (MDA) and antioxidant vitamins (C, E, A) were determined and compared to evaluate the oxidative status and anti-oxidative capacity of these groups. We have also compared the osmotic fragility profiles of the erythrocytes of these groups.

Results: Plasma MDA content in pregnant was significantly higher compared to non-pregnant (p < 0.001, 67.5%) and even in gestational diabetics; its value was found significantly further elevated (p = 0.001, 13.8%) compared to healthy pregnant. There was significant decline (p < 0.001, 41.9%) in the level of vitamin C in pregnant as compared to non-pregnant. Although in GDM the decrease was significant (p = 0.025, 20.6%) but comparatively lesser when compared to healthy pregnant. Vitamin E showed the increase of 9.6% during pregnancy, although this alteration was non-significant (p = 0.09), but the level was found to decline significantly (p < 0.001, 25.5%) in GDM compared to pregnant group. Vitamin A contents were also decreased in pregnant (p = 0.002, 17.4%) compared to non-pregnant and in GDM (p = 0.012, 11.2%) compared to pregnant group. Osmotic fragility (O.F.) profiles showed insignificant (p = 0.325) enhanced mean erythrocyte fragility (MEF) in pregnant but this increase was significant (p = 0.003) in case of GDM. The O.F. profiles of pregnant and GDM erythrocytes got shifted to the right side of the control one.

Conclusions: Our findings indicate highly enhanced lipid peroxidation and significant depletion in antioxidant capacity during the development of gestational diabetes, and these alterations are not the cause but the consequence of GDM. However, further studies are warranted to examine a wider range of biochemical parameters to evaluate the potential risks of oxidative damage in GDM.



Gestational diabetes; Oxidative stress; Anti-oxidants; Vitamins C, E, A; Osmotic fragility; Non-pregnant; Pregnant; GDM

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