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Functional selectivity of insulin receptor revealed by aptamer-trapped receptor structures
DNA aptamers can activate insulin receptor as selective agonists or positive allosteric modulators. Here, authors determine structures of the insulin receptor bound to aptamers and provide a basis for the selective activation or allosteric regulation of ...
Junhong Kim +8 more
doaj +1 more source
Ever since the discovery of insulin and its role in the regulation of glucose uptake and utilization, there has been great interest in insulin, its structure and the way in which it interacts with its receptor and effects signal transduction. As the 90th
Michael eLawrence, Michael eLawrence
doaj +1 more source
An insulin receptor mutant (Asp707 → Ala), involved in leprechaunism, is processed and transported to the cell surface but unable to bind insulin [PDF]
We have identified a homozygous mutation near the carboxyl terminus of the insulin receptor (IR) α subunit from a leprechaun patient, changing Asp707 into Ala. Fibroblasts from this patient had no high affinity insulin binding sites.
Apak, M.Y. (Memnune) +7 more
core +1 more source
Insulin receptor has tyrosine kinase activity toward Shc in rat liver
Insulin induces tyrosine phosphorylation of Shc in cell cultures and in insulin-sensitive tissues of the intact rat. However, the ability of insulin receptor (IR) tyrosine kinase to phosphorylate Shc has not been previously demonstrated.
E.V. Páez-Espinosa +3 more
doaj +1 more source
The Insulin Receptor Mediates Insulin’s Early Plasma Clearance by Liver, Muscle, and Kidney
The role of the insulin receptor in mediating tissue-specific insulin clearance in vivo has not been reported. Using physiologic insulin doses, we measured the initial clearance rate (first 5 min) of intravenously injected ([125I]TyrA14)-insulin by ...
Rick I. Meijer, Eugene J. Barrett
doaj +1 more source
Fibroblasts derived from long-lived insulin receptor substrate 1 null mice are not resistant to multiple forms of stress [PDF]
Reduced signalling through the insulin/insulin-like growth factor-1 signalling (IIS) pathway is a highly conserved lifespan determinant in model organisms.
Page, Melissa M. +5 more
core +1 more source
BackgroundIon transport in the renal proximal tubule (RPT), which is increased in essential hypertension, is regulated by numerous hormones and humoral factors, including insulin and dopamine. Activation of dopamine receptor inhibits sodium reabsorption,
Ye Zhang +7 more
doaj +1 more source
Insulin receptors are internalized by endothelial cells to facilitate their physiological processes; however, the impact of hyperinsulinemia in brain endothelial cells is not known. Thus, the aim of this study was to elucidate the impact hyperinsulinemia
Luke S Watson +6 more
doaj +1 more source
Estrogens promote misfolded proinsulin degradation to protect insulin production and delay diabetes [PDF]
Summary: Conjugated estrogens (CE) delay the onset of type 2 diabetes (T2D) in postmenopausal women, but the mechanism is unclear. In T2D, the endoplasmic reticulum (ER) fails to promote proinsulin folding and, in failing to do so, promotes ER stress and
Allard, Camille +12 more
core +2 more sources
Berberine for prevention of dementia associated with diabetes and its comorbidities: A systematic review [PDF]
Background A growing number of epidemiological studies indicate that metabolic syndrome (MetS) and its associated features play a key role in the development of certain degenerative brain disorders, including Alzheimer’s disease and vascular dementia ...
Bell, J.D. +9 more
core +1 more source

