Teratogenic risks of treated and untreated maternal obesity
Robert E Jones1, Chloe A Zera2
1Department of Obstetrics and Gynecology, Beth Israel Deaconess Medical Center, 330 Brookline Ave, Boston, MA 02115, United States.
Abstract:
Untreated obesity in pregnancy is associated with adverse fetal and neonatal outcomes that influence the long-term offspring health trajectory, propagating obesity and cardiometabolic disease from one generation to the next. The current efforts to reduce the risk of these negative outcomes through preconception weight loss remain largely ineffective. Anti-obesity medications (AOMs) are an understudied option for this indication, likely due to the potential for teratogenicity with accidental exposure during pregnancy. However, the current recommendation to discontinue all AOMs prior to conception fails to frame obesity within the chronic disease paradigm typically used for preconception counseling. Evolving evidence suggests that glucagon-like peptide 1 receptor agonists (GLP-1 RAs), the newest and most effective AOM class, may be safe in early pregnancy. Although further research is needed, counseling about GLP-1 RAs during pregnancy should include the potential for both risk and benefit. This review summarizes the known risks that obesity in pregnancy poses to the offspring and discusses the benefits and limitations of current treatment strategies. While there remain several barriers to optimal preconception and prenatal care for people with obesity, this review aims to arm providers with the knowledge needed for patient-centered counseling prior to and during pregnancy.
Insights
Untreated pregnancy obesity harms offspring long-term health. New anti-obesity medications like glucagon-like peptide 1 receptor agonists (GLP-1 RAs) show potential safety in early pregnancy, offering new counseling avenues.
Area of Science:
- Reproductive Medicine
- Endocrinology
- Public Health
Background:
- Untreated obesity in pregnancy leads to adverse fetal and neonatal outcomes, impacting offspring's long-term health and perpetuating obesity across generations.
- Current preconception weight loss strategies are largely ineffective in mitigating these risks.
- Anti-obesity medications (AOMs) are understudied for pregnancy due to teratogenicity concerns, and current guidelines often overlook obesity as a chronic disease.
Purpose of the Study:
- To review the risks of maternal obesity for offspring health.
- To discuss current and emerging treatment strategies for obesity in pregnancy.
- To provide guidance for patient-centered counseling regarding AOMs, particularly GLP-1 RAs, before and during pregnancy.
Main Methods:
- Literature review of risks associated with maternal obesity.
- Analysis of current preconception and prenatal care strategies.
- Evaluation of evidence regarding AOMs, focusing on GLP-1 RAs, in the context of pregnancy.
Main Results:
- Maternal obesity poses significant long-term health risks to offspring, including obesity and cardiometabolic disease.
- Existing preconception interventions have limited effectiveness.
- Emerging evidence suggests potential safety and efficacy of GLP-1 RAs in early pregnancy, warranting further research.
Conclusions:
- Obesity in pregnancy requires a chronic disease management approach.
- GLP-1 RAs represent a promising, yet understudied, AOM class for managing obesity preconceptionally and potentially during early pregnancy.
- Further research is crucial to establish safety and efficacy, enabling informed, patient-centered counseling for providers.
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