ArticleAnnals of translational medicine2021
Liraglutide inhibits the progression of prediabetes in rats by reducing Raf-1 kinase inhibitor protein.
Article in Annals of translational medicine, 2021. 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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2 citing papers in PubMed, 3 citations in OpenAlex.
- Review
- Pharmacologic Treatment of Obesity in adults and its impact on comorbidities: 2024 Update and Position Statement of Specialists from the Brazilian Association for the Study of Obesity and Metabolic Syndrome (Abeso) and the Brazilian Society of Endocrinology and Metabolism (SBEM).Archives of endocrinology and metabolism · 2024Review
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8 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundThe cleavage product of Raf-1 kinase inhibitor protein (RKIP), hippocampal cholinergic neurostimulating peptide (HCNP) is involved in the promotion of insulin secretion. Studies have shown that liraglutide can inhibit the progression of prediabetes. This study aims to investigate whether the above effects of liraglutide are related to RKIP and HCNP.
methodsInsulin-1 (INS-1) cells were divided into control group (CON), HCNP group, and HCNP + darifenacin group (H-DAR). The three groups were cultured with Roswell Park Memorial Institute (RPMI) 1640, synthetic HCNP (50 pg/mL) and RPMI 1640, and HCNP + RPMI 1640 + darifenacin respectively. Subsequently, twelve 12- to 14-week-old Otsuka Long-Evans Tokushima Fatty (OLETF) rats were randomly divided into 2 groups: the placebo group (PBO) and the liraglutide treatment group (LIRA). Six Long Evans Tokushima Otsuka (LETO) rats were used as the control group (CON). The LIRA group was given liraglutide 200 µg/kg intraperitoneally twice a day. After 12 weeks, body weight, fasting blood glucose, 2 hours postprandial blood glucose, and insulin resistance index were recorded. Western blot was used to detect expression level of C-RKIP, N-RKIP, and extracellular signal-regulated kinase of phosphorylation (p-ERK). Real-time quantitative polymerase chain reaction (qRT-PCR) to detect pancreatic tissue choline acetyltransferase (
resultsAt glucose concentrations of 5.6 and 16.7 mmol/L, the insulin content in the HCNP group was higher than that in the CON and H-DAR groups (all P<0.01). The body weight and fasting serum insulin (FINS) of rats in the PBO group were higher than those in the LIRA group and the CON group (P<0.01). The relative content of C-RKIP protein in the PBO group was higher than that in the LIRA and CON groups (P<0.01). The relative content of N-RKIP protein and p-ERK protein was lower than that in the LIRA and CON group (P<0.05 and P<0.01, respectively).
conclusionsLiraglutide promotes the production of HCNP, can increase
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