Obesity and Pregnancy, the Perfect Metabolic Storm

The risk of GDM is 6.5 times higher in pregnancies complicated by obesity, hypertension, and preeclampsia than in normal-weight pregnancies.

“For the mother, obesity is a risk factor for GDM: the risk of GDM is 6.5 times higher in pregnancies complicated by obesity, hypertension, and preeclampsia than in normal-weight pregnancies.”

In obese pregnancies, uncontrolled placental inflammation compromises placental function, increasing fatty acids in fetal circulation and fetal hyperinsulinemia.

“As a result, there is uncontrolled placental inflammation that compromises placental function, increasing fatty acids (FAs) in the fetal circulation; furthermore, in mothers with obesity, high glucose levels are exposed as a nuoktrient to the fetus, and this excess of nutrients from maternal glucose stimulates fetal hyperinsulinemia during gestation.”

In obese pregnant women, excess adiposity leads to increased insulin resistance, altered lipid metabolism, and inflammation, increasing nutrient flux from mother to fetus and promoting placental changes.

“In obese pregnant women, normal physiology is disrupted by excess adiposity, which leads to increased insulin resistance, altered lipid metabolism, and inflammation. This disruption increases the nutrient flux from mother to fetus and promotes changes in the placenta.”

Offspring of obese mothers have increased risk of adverse neonatal outcomes such as preterm birth, large for gestational age, macrosomia, impaired fetal growth, and hypoglycemia, as well as long-term obesity and metabolic dysfunction.

“Offspring also have an increased risk of adverse neonatal outcomes such as preterm birth, being large for gestational age, macrosomia, impaired fetal growth, and hypoglycemia, as well as a long-term risk of developing obesity and metabolic dysfunction [25,26].”

Excessive gestational weight gain increases the risk of postpartum weight maintenance, stabilizing obesity and promoting cardiometabolic complications including T2D and CVDs in later life.

“Moreover, the accumulation of excessive gestational weight also increases the risk of postpartum weight maintenance, stabilizing obesity and promoting obesity-associated cardiometabolic complications, including T2D and CVDs in later life.”

Chronic low-grade inflammation in obese women activates the immune system in the intrauterine environment, leading to placental macrophage accumulation and pro-inflammatory cytokine production.

“Chronic low-grade inflammation, typical of obese women, activates the immune system in the intrauterine environment, leading to the accumulation of macrophages in the placenta. This, in turn, results in the production of pro-inflammatory cytokines in this organ.”

Obesity and pregnancy together exacerbate metabolic and molecular alterations, causing severe short-term and long-term health consequences to the mother and fetus.

“Therefore, obesity and pregnancy represent the perfect storm for causing severe short-term and long-term health consequences to the mother and the fetus [20,25].”

Genetic susceptibility to GDM includes single-nucleotide polymorphisms in genes such as TCF7L2, MTNR1B, and ADIPOQ that modulate maternal glucose metabolism and insulin sensitivity.

“Genetic susceptibility to GDM, including single-nucleotide polymorphisms (SNPs) in genes such as TCF7L2, MTNR1B, and ADIPOQ, further modulates maternal glucose metabolism and insulin sensitivity.”

Pregnancy is a metabolically dynamic condition.

“Pregnancy is a metabolically dynamic condition, and an inappropriate nutritional status may contribute to metabolic alterations, making the person susceptible to metabolic disorders and poor pregnancy outcomes (1, 2).”

The obese condition triggers a chronic inflammatory and insulin-resistant condition known as a so-called metabolic storm that increases metabolic disruptions in pregnancy.

“The obese condition triggers a chronic inflammatory and insulin-resistant condition known as a so-called metabolic storm that increases metabolic disruptions in pregnancy (2).”

Inappropriate nutritional status may contribute to metabolic alterations, making the person susceptible to metabolic disorders and poor pregnancy outcomes.

“Pregnancy is a metabolically dynamic condition, and an inappropriate nutritional status may contribute to metabolic alterations, making the person susceptible to metabolic disorders and poor pregnancy outcomes (1, 2).”