Isolated pancreatic islets from thiamine deficient rats secrete less insulin. The secretion of insulin in response to glucose and tolbutamide is also decreased in these islets. Glucose and pyruvate oxidations to CO2, were decreased in the islets isolated from thiamine deficient rats. In the islets from control but not from thiamine deficient rats the oxidations of glucose and pyruvate to CO2 were increased by tolbutamide. The results suggest that in thiamine deficiency the insulin secretion is impaired due to the decreased glucose oxidation.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Wernicke's encephalopathy, Central Pontine Myelinolysis and Supraventricular Tachycardia in a Case of Hyperemesis Gravidarum.
Mymensingh Med J
January 2025
Dr Muhammad Rezeul Huq, Classified Specialist, Department of Neurology, Combined Military Hospital, Dhaka, Bangladesh; E-mail:
Wernicke's encephalopathy is a potentially lethal complication of thiamine deficiency which mainly occurs in chronic alcoholic patients. It may occur in other conditions like hyperemesis gravidarum too. Pregnancy may also be complicated with other neurological and cardiac complications.
View Article and Find Full Text PDFSubstrate transport and drug interaction of human thiamine transporters SLC19A2/A3.
Nat Commun
December 2024
ENT Institute and Otorhinolaryngology Department of Eye & ENT Hospital, Institutes of Biomedical Sciences, Shanghai Key Laboratory of Medical Epigenetics, International Co-laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology), Department of Systems Biology for Medicine, Fudan University, Shanghai, China.
Thiamine and pyridoxine are essential B vitamins that serve as enzymatic cofactors in energy metabolism, protein and nucleic acid biosynthesis, and neurotransmitter production. In humans, thiamine transporters SLC19A2 and SLC19A3 primarily regulate cellular uptake of both vitamins. Genetic mutations in these transporters, which cause thiamine and pyridoxine deficiency, have been implicated in severe neurometabolic diseases.
View Article and Find Full Text PDFExploring Distinct Second-Order Data Approaches for Thiamine Quantification via Carbon Dot/Silver Nanoparticle FRET Reversion.
Biosensors (Basel)
December 2024
LAQV, REQUIMTE, Department of Chemical Sciences, Laboratory of Applied Chemistry, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira n° 228, 4050-313 Porto, Portugal.
Accurate and selective monitoring of thiamine levels in multivitamin supplements is essential for preventing deficiencies and ensuring product quality. To achieve this, a Förster resonance energy transfer (FRET) system using carbon dots (CDs) as energy donors and citrate-stabilized silver nanoparticles (AgNPs) as energy acceptors was developed. The aqueous synthesis of AgNPs using microwave irradiation was optimized to obtain efficient plasmonic nanoparticles for FRET applications, targeting maximal absorbance intensity, stability, and wavelength alignment.
View Article and Find Full Text PDFWernicke Encephalopathy Associated with Hyperemesis Gravidarum: A Case Report.
Clin Pract Cases Emerg Med
November 2024
University of Missouri, Department of Emergency Medicine, Columbia, Missouri.
Introduction: Wernicke encephalopathy is a clinical diagnosis that requires a high degree of clinical suspicion to recognize. We report a case of a pregnant patient developing Wernicke encephalopathy in the setting of severe hyperemesis gravidarum.
Case Report: The patient was a 22-year-old female 13 weeks pregnant presenting to the emergency department (ED) with neurological deficits after several weeks of hyperemesis gravidarum requiring hospitalization.
Tremors in cats: 105 cases (2004-2023).
Vet J
December 2024
Department of Clinical Science and Services, Royal Veterinary College, University of Hawkshead Ln, Brookmans Park, Hatfield AL9 7TA, UK.
Although tremors are common neurological presentations, there is little known about their clinical features and underlying etiologies in cats. The aim of this study was to evaluate the clinical features, and underlying diagnoses in cats with tremors. We hypothesized that the results of this study would provide clinically useful information for clinicians when evaluating cats with tremors.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!