ArticleBiology of sex differences2025
Gestational saccharin consumption disrupts gut-brain axis glucose homeostasis control in adolescent offspring rats in a sex-dependent manner.
Article in Biology of sex differences, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Long-term consequences of prenatal saccharin exposure: evidence of sex-specific molecular programing in the prefrontal cortex and behavior of adolescent rats.Frontiers in behavioral neuroscience · 2026Article
- Beyond Sugar: A Holistic Review of Sweeteners and Their Role in Modern Nutrition.Foods (Basel, Switzerland) · 2025Review
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14 authors.
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Abstract
backgroundCertain events that occur in early life, such as changes in nutrition, can promote structural and functional modifications in brain development, projecting to either short, medium, and/or long terms, resulting in metabolic programming. These effects depend on the timing, intensity, and duration of exposure, and are proposed to be the cause or contribute to chronic adult disorders. Recent studies have proposed that artificial non-nutritive sweeteners (NNS), such as saccharin, can be included as one of these developmental disruptors. Saccharin consumption during pregnancy is strongly discouraged, as it can cross through the placenta and accumulate in the fetus, potentially impacting metabolic control for life. However, the mechanisms underlying the metabolic syndrome induced by maternal NNS consumption during pregnancy are not well understood. Some studies suggest that NNS may affect sweet taste receptors in the adult's guts, leading to changes in the release of glucagon-like peptide-1 (GLP-1) and insulin. The objective of the study is to investigate whether maternal saccharin consumption during pregnancy affects the gut-brain connection, leading to alterations in insulin/GLP-1 signaling during neurodevelopment until adolescence.
methodsPregnant rats were administered 0.1% saccharin in drinking water throughout gestation, and the main components of the insulin/GLP-1 signaling pathway were analyzed in the plasma, small intestine and hypothalamus of the offspring after weaning. Perinatal exposure to saccharin was linked to disrupted glucose homeostasis and insulin sensitivity in both male and female offspring.
resultsWe identified sex-dependent mechanisms that affected GLP-1 signaling in the intestine, associated with the expression of taste receptors and glucose transporters. These alterations affected the gut-brain axis and disrupted hypothalamic signaling associated with glucose regulation and food intake, primarily involving the GLP-1, leptin, and insulin signaling pathways.
conclusionsThese results suggest that developmental NNS exposure might contribute to the growing alteration in energy metabolism.
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