GLP-1 and Embryonic Abnormal Development
The Role of GLP-1 in Pregnancy and Fetal Development
GLP-1, or glucagon-like peptide-1, is a hormone that plays a crucial role in glucose metabolism and insulin secretion. Recent studies have suggested that GLP-1 receptor agonists, which mimic the effects of GLP-1, may have adverse effects on embryonic development in animal studies. This has raised concerns about the safety of GLP-1 receptor agonists during pregnancy.Studies on Animal Models
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In some studies examining small animals exposed to GLP-1 receptor agonists in pregnancy, there has been evidence of adverse outcomes in the offspring, including decreased fetal growth, skeletal and visceral anomalies, and embryonic death. These findings underscore the crucial role of modulating circulating GLP-1 levels in maternal adaptation, emphasizing the inhibitory effects of excessive GLP-1 receptor activation on both placental development and fetal growth.Human Studies and Epidemiology
Although there are no prospective studies in humans, case reports, cohort studies, and population-based studies have not shown a pattern of adverse fetal outcomes associated with GLP-1 receptor agonist use during pregnancy. However, recent studies have suggested that GLP-1 receptor agonists may affect fetal weight, growth, and skeletal ossification in animal models. GLP-1 has been implicated in various stages of embryonic development, including the specification of the ABp fate and the establishment of the dorsal-ventral axis in Caenorhabditis elegans. The role of GLP-1 in human embryonic development is not well understood, but it is thought to be involved in cell fate decision, proliferation, and differentiation during embryogenesis.GLP-1 and Female Fertility
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Expression of GATA-like protein-1 (GLP-1) in ovarian somatic cells is required for normal fertility in female mice, as GLP-1 deficiency leads to the absence of oocytes at birth. The exact mechanism by which GLP-1 affects female fertility is not known, but it is thought to be involved in regulating ovarian development, folliculogenesis, and ovulation.
