ArticleInternational journal of molecular sciences2026
The Role of Vasoactive Intestinal Peptide in Glucagon-like Peptide-2-Mediated Intestinal Lipid Handling.
Article in International journal of molecular sciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The gut hormone glucagon-like peptide-2 (GLP-2) plays important roles in regulating lipid handling and promoting anti-inflammatory functions in the intestine. During the postprandial state, it increases lipid absorption. During post-absorptive state, it mobilizes pre-formed chylomicrons. GLP-2 acts through vasoactive intestinal peptide (VIP) in reducing inflammation in rat ileum. However, this pathway has not yet been tested for GLP-2's effects on intestinal lipid handling. Here, in mesenteric lymph duct cannulated rats, we examined whether VIP signaling mediates GLP-2's effects on postprandial lipid absorption and post-absorptive lipid mobilization in the intestine. We administered a VIP receptor antagonist and analyzed lipid output in response to intraperitoneal GLP-2 or PBS during postprandial and post-absorptive states. VIP receptor antagonism reduced GLP-2 mediated lipid output in the post-absorptive state but had no effect during the postprandial state. These results show that GLP-2 functions differently during postprandial and post-absorptive states and VIP aids in GLP-2-mediated lipid output during the post-absorptive state.
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