Thyroid hormones play an important role in glucose metabolism and homeostasis. This review focuses on the relationship between
oxidative stress and disruption of thyroid hormones in association with gestational diabetes. During a normal pregnancy, oxidative
stress enhances antioxidant mechanisms, thyroid hormones play particularly important role that operate on the antioxidant balance,
during pregnancy a severe iodine deficiency would affect the synthesis and secretion of T4 or T3 which stimulates excretion of TSH
which shown associated with oxidative stress by, increase the production of reactive oxygen species and changes in anti-oxidative
factors. Increased oxidative stress is a widely accepted participant in the development and progression of diabetic tissue damage during
pregnancy or what we call gestational diabetes. This study highlights the importance of evaluating and controlling the variation of
thyroid hormones and the oxidative stress markers in pregnant women to properly control the complications of pregnancy including
gestational diabetes, suggesting to use antioxidant supplements with the systematic treatment of gestational diabetes or dysthyroid to
protect against complications of pregnancy on the woman or the fetus
Keywords: Gestational Diabetes, Dysthyroidism, Oxidative stress, Drugs therapy, Pregnancy