Obesity and abnormal glucose tolerance in the offspring of mothers with diabetes.
Level 5 - mechanism / opinion, no new human data
Narrative review synthesizing observational studies and trial follow-up data without systematic search or meta-analytic pooling.
PubMed 30102607 · doi:10.1097/GCO.0000000000000479
What was done
The authors reviewed evidence examining the relationship between intrauterine exposure to maternal diabetes (gestational diabetes, type 1 diabetes, and type 2 diabetes) and subsequent risks of obesity and abnormal glucose tolerance (AGT) in offspring. The review examined observational cohorts as well as follow-up data from two randomized controlled trials assessing maternal treatment for gestational diabetes.
What was found
The abstract reports qualitative narrative findings with no numerical statistics, sample sizes, or effect estimates provided. Offspring of mothers with gestational diabetes have an increased incidence of obesity, overweight, and AGT (elevated by age 7 in untreated cases), which remains an independent risk factor after adjusting for maternal prepregnancy BMI. Offspring follow-up from two randomized trials of gestational diabetes treatment showed limited impact, with lower prevalence of obesity and impaired fasting glucose observed only in some 7-year-old girls. Offspring of mothers with type 1 diabetes also had higher risks of overweight, obesity, and type 2 diabetes independent of maternal BMI. Evidence regarding offspring of mothers with type 2 diabetes was noted to be limited.
Why it matters
This review underscores that fetal exposure to hyperglycemia independently contributes to long-term metabolic dysfunction across maternal diabetes types, while indicating that maternal glycemic intervention alone may have limited long-term preventive efficacy in offspring.
Limits
The abstract contains no quantitative metrics, effect sizes, or confidence intervals. The total number of studies and participants reviewed is unspecified, and the evidence base is constrained by very few randomized trial follow-ups and limited literature on type 2 diabetic pregnancies.
Cited by
- supports Studies show that babies born to mothers with high glucose levels during pregnancy are more likely to develop obesity in childhood, adolescence, and adulthood.