Search results for " insulin"
showing 10 items of 237 documents
Altered desaturase activities and fatty acid composition in liver microsomes of spontaneously diabetic Wistar BB rat.
1992
We examined the activities of delta 9, delta 6 and delta 5 desaturases and fatty acid composition of liver microsomes in the insulin-dependent spontaneously diabetic adult female Wistar Bio-Breeding (BB) rat. The diabetic BB rats were subcutaneously injected with different doses of protamine zinc insulin in order to be killed in hyper-, normo- or hypo-glycemic states. Desaturase activities, which are partially inhibited by spontaneous diabetes during the normo- and hyper-glycemic periods, were similarly affected by the various insulin treatment; delta 9 desaturase activity being more depressed than the desaturase activities of either delta 6 of delta 5. Insulin treatment with 10 I.U./kg bod…
Probing ensemble polymorphism and single aggregate structural heterogeneity in insulin amyloid self-assembly.
2020
Ensembles of protein aggregates are characterized by a nano- and micro-scale heterogeneity of the species. This diversity translates into a variety of effects that protein aggregates may have in biological systems, both in connection to neurodegenerative diseases and immunogenic risk of protein drug products. Moreover, this naturally occurring variety offers unique opportunities in the field of protein-based biomaterials. In the above-mentioned fields, the isolation and structural analysis of the different amyloid types within the same ensemble remain a priority, still representing a significant experimental challenge. Here we address such complexity in the case of insulin for its relevance…
Exenatide prevents statin-related LDL receptor increase and improves insulin secretion in pancreatic beta cells (1.1E7) in a protein kinase A-depende…
2022
Statins are primary drugs in the treatment of hyperlipidemias. This group of drugs is known for its beneficial pleiotropic effects (e.g., reduction of inflammatory state). However, a growing body of evidence suggests its diabetogenic properties. The culpable mechanism is not completely understood and might be related to the damage to pancreatic beta cells. Therefore, we conceived an in vitro study to explore the impact of atorvastatin on pancreatic islet beta cells line (1.1.E7). We evaluated the influence on viability, insulin, lowdensity lipoprotein (LDL) receptor, and proprotein convertase subtilisin/kexin type 9 (PCSK9) expression. A significant drop in mRNA for proinsulin and insulin e…
Defective insulin secretory response to intravenous glucose in C57Bl/6J compared to C57Bl/6N mice
2014
Objective: The C57Bl/6J (Bl/6J) mouse is the most widely used strain in metabolic research. This strain carries a mutation in nicotinamide nucleotide transhydrogenase (Nnt), a mitochondrial enzyme involved in NADPH production, which has been suggested to lead to glucose intolerance and beta-cell dysfunction. However, recent reports comparing Bl/6J to Bl/6N (carrying the wild-type Nnt allele) under normal diet have led to conflicting results using glucose tolerance tests. Thus, we assessed glucose-stimulated insulin secretion (GSIS), insulin sensitivity, clearance and central glucose-induced insulin secretion in Bl/6J and N mice using gold-standard methodologies. Methods: GSIS was measured u…
Transgene detection by digital droplet PCR
2014
Somatic gene therapy is a promising tool for the treatment of severe diseases. Because of its abuse potential for performance enhancement in sports, the World Anti-Doping Agency (WADA) included the term 'gene doping' in the official list of banned substances and methods in 2004. Several nested PCR or qPCR-based strategies have been proposed that aim at detecting long-term presence of transgene in blood, but these strategies are hampered by technical limitations. We developed a digital droplet PCR (ddPCR) protocol for Insulin-Like Growth Factor 1 (IGF1) detection and demonstrated its applicability monitoring 6 mice injected into skeletal muscle with AAV9-IGF1 elements and 2 controls over a 3…
Microsatellite allele 5.1 of major histocompatibility complex class I chain related gene A (MIC-A) is increased among non-insulin dependent diabetes …
2000
El autoconcepto y la adaptación a la enfermedad en pacientes diabéticos pediátricos
2014
ResumenNuestro objetivo es estudiar el autoconcepto y la adaptación a la enfermedad en pacientes pediátricos diabéticos. Como instrumentos de evaluación se utilizaron el registro ad-hoc para las variables sociodemográficas y de enfermedad, el cuestionario de Autoconcepto Garley (CAG) y cuestionario de respuesta adaptativa a la enfermedad en pacientes diabéticos. La muestra constó de 23 sujetos evaluados en un único momento de medida, todos ellos niños y adolescentes entre 8 y 16 años de edad. Los resultados muestran cómo aproximadamente el 50% de niños y adolescentes con diabetes tipo I presentan un autoconcepto bajo en la mayoría de las dimensiones estudiadas, destacando cómo cerca del 30%…
Main Problems of Diabetes Mellitus Type 2 Patients in Keeping Diet
2015
A research has been carried out to assess the awareness of patients about the importance of diet, the availability of information and to make the diabetes patients with mellitus type 2 realize the urgency of dieting. The first part looks into theoretical sources and statistics about how widespread diabetes mellitus type 2 is and the importance of a healthy diet. The practical part of the research consists of the survey results. The method of quantitative research was applied. The conclusions and suggestions have been made based on the research results.
Is the Secret in the Gut? SuperJump Activity Improves Bone Remodeling and Glucose Homeostasis by GLP-1 and GIP Peptides in Eumenorrheic Women
2022
We showed that twenty weeks of SuperJump activity, an innovative workout training performed on an elastic minitrampoline, reduced bone resorption and increased bone formation in eumenorrheic women acting on the key points of the regulation of bone metabolism. The present study analyzed whether the gastrointestinal hormones are involved in the mechanism of action and if it has an impact on glucose homeostasis. The control group was composed of twelve women, similar to the exercise group that performed SuperJump activity for twenty weeks. The analysis was performed on blood samples and investigated GLP-1, GIP, GLP-2, PYY, ghrelin, glucose, insulin, insulin resistance, β-cell function, and ins…
Die Bedeutung von Magnesium für Insulinresistenz, metabolisches Syndrom und Diabetes mellitus - Empfehlungen der Gesellschaft für Magnesium-Forschung…
2014
Mangel an Magnesium (Mg) ist ein wichtiges und haufiges Begleitphanomen bei Patienten mit Diabetes mellitus oder Vorstufen eines Diabetes Typ 2 wie dem Metabolischen Syndrom. Mg-Mangel erhoht das Risiko, einen Diabetes Typ 2 zu entwickeln. Diese Empfehlungen resumieren die gegenwartigen Kenntnisse zur Physiologie des Mg im Kohlenhydratstoffwechsel und die pathophysiologischen Folgen des Mg-Mangels bei Diabetikern. Diabetiker und Patienten mit dessen Vorstufen profitieren von vier Kategorien der Mg-Wirkmechanismen: Insulin-sensitizing-Effekt, Ca-Antagonismus, Stress-Regulation und Endothel-stabilisierender Effekt. Klinische Studiendaten mit Mg-Comedikation zeigen verminderte Insulinresistenz…