Results 31 to 40 of about 771,301 (303)

Functional selectivity of insulin receptor revealed by aptamer-trapped receptor structures

open access: yesNature Communications, 2022
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

A novel nonsense mutation in the insulin receptor gene in a patient with HAIR-AN syndrome and endometrial cancer

open access: yesMolecular Genetics and Metabolism Reports, 2023
Severe insulin resistance can be caused by rare genetic defects in the insulin receptor known as insulin receptoropathies. These genetic defects cause a wide spectrum of clinical manifestations ranging from mild syndromes to lethal disorders. Among those
Dalia Cuenca   +11 more
doaj   +1 more source

Landmarks in insulin research

open access: yesFrontiers in Endocrinology, 2011
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

Insulin receptor has tyrosine kinase activity toward Shc in rat liver

open access: yesBrazilian Journal of Medical and Biological Research, 1998
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

An insulin receptor mutant (Asp707 → Ala), involved in leprechaunism, is processed and transported to the cell surface but unable to bind insulin [PDF]

open access: yes, 1996
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 and Insulin Receptor Variants: Structural and Functional Insights into Insulin Resistance

open access: yesKorean Journal of Clinical Laboratory Science
Insulin resistance (IR), a defining pathological feature of type 2 diabetes mellitus, results from impaired signaling through the insulin receptor (INSR).
Hyun Ho SUNG   +2 more
doaj   +1 more source

Hyperinsulinemia alters insulin receptor presentation and internalization in brain microvascular endothelial cells

open access: yesDiabetes & Vascular Disease Research, 2022
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

Insulin and GLP-1 infusions demonstrate the onset of adipose-specific insulin resistance in a large fasting mammal: potential glucogenic role for GLP-1. [PDF]

open access: yes, 2013
Prolonged food deprivation increases lipid oxidation and utilization, which may contribute to the onset of the insulin resistance associated with fasting.
Crocker, Daniel E   +7 more
core   +1 more source

The Insulin Receptor Mediates Insulin’s Early Plasma Clearance by Liver, Muscle, and Kidney

open access: yesBiomedicines, 2021
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

Inhibition of D4 Dopamine Receptors on Insulin Receptor Expression and Effect in Renal Proximal Tubule Cells

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2016
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

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