ArticleDoklady. Biochemistry and biophysics2024
Long-term GABA Supplementation Regulates Diabetic Gastroenteropathy through GABA Receptor/trypsin-1/PARs/Akt/COX-2 Axis.
Article in Doklady. Biochemistry and biophysics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Metabolic reprogramming drives pancreatic β cell neogenesis from α cells.Nature chemical biology · 2026Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
aimMolecular alterations of diabetic gastroenteropathy are poorly identified. This study investigates the effects of prolonged GABA supplementation on key protein expression levels of trypsin-1, PAR-1, PAR-2, PAR-3, PI3K, Akt, COX-2, GABAA, and GABAB receptors in the gastric tissue of type 2 diabetic rats (T2DM).
methodTo induce T2DM, a 3-month high-fat diet and 35 mg/kg of streptozotocin was used. Twenty-four male Wistar rats were divided into 4 groups: (1) control, (2) T2DM, (3) insulin-treated (2.5 U/kg), and (4) GABA-treated (1.5 g/kg GABA). Blood glucose was measured weekly. The protein expressions were assessed using western blotting. Histopathological changes were examined by H&E and Masson's staining.
resultsDiabetic rats show reduced NOS1 and elevated COX-2 and trypsin-1 protein expression levels in gastric tissue. Insulin and GABA therapy restored the NOS1 and COX-2 levels to control values. Insulin treatment increased PI3K, Akt, and p-Akt and, decreased trypsin-1, PAR-1, PAR-2, and PAR-3 levels in the diabetic rats. Levels of GABAA and GABAB receptors normalized following insulin and GABA therapy. H&E staining indicated an increase in mucin secretion following GABA treatment.
conclusionThese results suggest that GABA by acting on GABA receptors may regulate the trypsin-1/PARs/Akt/COX-2 pathway and thereby improve complications of diabetic gastroenteropathy.
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Registered trials
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