Glucose-induced elevations in plasma immunoreactive insulin (IRI) were examined in anaesthetized rats pretreated with BW755c, sodium meclofenamate or vehicle. Neither drug influenced the glucose-induced hyperinsulinaemia or the glucose disappearance rate. The results do not support a physiological role for arachidonic acid metabolites in the regulation of glucose-induced insulin secretion.
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http://dx.doi.org/10.1111/j.2042-7158.1985.tb04984.x | DOI Listing |
Int J Mol Sci
January 2025
State Key Laboratory of Developmental Biology of Freshwater Fish, Key Laboratory of Physical Fitness and Exercise Rehabilitation of Hunan Province, College of Physical Education, Hunan Normal University, Changsha 410012, China.
Type 2 diabetes mellitus (T2DM) is a common metabolic disease that is frequently accompanied by multiple complications, including diabetic myopathy, a muscle disorder that is mainly manifested as decreased muscle function and reduced muscle mass. Diabetic myopathy is a relatively common complication among patients with diabetes that is mainly attributed to mitochondrial dysfunction. Therefore, we investigated the mechanisms underlying diabetic myopathy development, focusing on the role of microRNAs (miRs).
View Article and Find Full Text PDFFoods
January 2025
Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Center for Disease Prevention and Control, Beijing 100013, China.
L-theanine, a non-protein amino acid naturally occurring in tea leaves, is recognized for its antioxidant, anti-inflammatory, and neuroprotective properties. Despite its known benefits, the mechanisms by which L-theanine influences lifespan extension remain poorly understood. This study investigated the effects of L-theanine on the lifespan of and explored the underlying mechanisms.
View Article and Find Full Text PDFPLoS One
January 2025
Department of Clinical Science, SUS, Division of Islet Cell Physiology, University of Lund, Malmö, Sweden.
The impact of islet neuronal nitric oxide synthase (nNOS) on glucose-stimulated insulin secretion (GSIS) is less understood. We investigated this issue by performing simultaneous measurements of the activity of nNOS versus inducible NOS (iNOS) in GSIS using isolated murine islets. Additionally, the significance of extracellular NO on GSIS was studied.
View Article and Find Full Text PDFJ Mol Cell Biol
January 2025
Department of Endocrinology, Beijing Diabetes Institute, Beijing Key Laboratory of Diabetes Research and Care, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China.
Insulin secretion is mainly regulated by two electrophysiological events, depolarization initiated by the closure of ATP-sensitive K+ (KATP) channels and repolarization mediated by K+ efflux. Quinine, a natural component commonly used for the treatment of malaria, has been reported to directly stimulate insulin release and lead to hypoglycemia in patients during treatment through inhibiting KATP channels. In this study, we verified the insulinotropic effect of quinine on the isolated mouse pancreatic islets.
View Article and Find Full Text PDFZhongguo Dang Dai Er Ke Za Zhi
January 2025
Department of Endocrine, Genetics and Metabolism, Children's Hospital Affiliated to Xi'an Jiaotong University, Xi'an 710003, China.
Maturity-onset diabetes of the young (MODY) is a special type of diabetes characterized by clinical features including early onset of diabetes (before 30 years of age), autosomal dominant inheritance, impaired glucose-induced insulin secretion, and hyperglycemia. So far, 14 types of MODY have been reported, accounting for about 1%-5% of the patients with diabetes. MODY often presents with an insidious onset, and although 14 subtypes have been identified for MODY, it is frequently misdiagnosed as type 1 or type 2 diabetes due to overlapping clinical features and high costs and limitations of genetic testing.
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