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
Interaction of Insulin Receptor Substrate 3 with Insulin Receptor, Insulin Receptor-related Receptor, Insulin-like Growth Factor-1 Receptor, and Downstream Signaling Proteins [PDF]
Insulin receptor substrates (IRS) mediate biological actions of insulin, growth factors, and cytokines. All four mammalian IRS proteins contain pleckstrin homology (PH) and phosphotyrosine binding (PTB) domains at their N termini. However, the molecules diverge in their C-terminal sequences.
P, Xu, A R, Jacobs, S I, Taylor
openaire +2 more sources
New Twist on Neuronal Insulin Receptor Signaling in Health, Disease, and Therapeutics
Long after the pioneering studies documenting the existence of insulin (year 1967) and insulin receptor (year 1978) in brain, the last decade has witnessed extraordinary progress in the understanding of brain region-specific multiple roles of insulin ...
Akihiko Wada +3 more
doaj +1 more source
The impact of acute rosiglitazone on insulin pharmacokinetics at the blood‐brain barrier
Introduction CNS insulin levels are decreased and insulin receptor signalling is dampened in Alzheimer's disease (AD). Increasing CNS insulin levels through a variety of methods has been shown to improve memory.
Demi C. Galindo +2 more
doaj +1 more source
Thyroxine-binding globulin: investigation of microheterogeneity [PDF]
Preparations of T4-binding globulin (TBG) from human serum was performed using only two affinity chromatography steps. Purity of the protein was demonstrated by a single band in overloaded disc and sodium dodecyl sulfate electrophoresis, equimolar ...
Gärtner, Roland +4 more
core +1 more source
Brain Insulin Resistance: Focus on Insulin Receptor-Mitochondria Interactions
Current hypotheses implicate insulin resistance of the brain as a pathogenic factor in the development of Alzheimer’s disease and other dementias, Parkinson’s disease, type 2 diabetes, obesity, major depression, and traumatic brain injury.
Igor Pomytkin, Vsevolod Pinelis
doaj +1 more source
Macrophage-derived upd3 Cytokine causes impaired glucose homeostasis and reduced lifespan in drosophila fed a lipid-rich diet [PDF]
Long-term consumption of fatty foods is associated with obesity, macrophage activation and inflammation, metabolic imbalance, and a reduced lifespan. We took advantage of Drosophila genetics to investigate the role of macrophages and the pathway(s) that ...
Dionne, MS +5 more
core +1 more source
The signalling conformation of the insulin receptor ectodomain
The insulin receptor plays a key role in many physiological processes, yet how insulin effects receptor signaling at the structural level remains incomplete.
Felix Weis +10 more
doaj +1 more source
Calcium-sensing receptor activation increases cell-cell adhesion and ß-cell function [PDF]
Background/Aims: The extracellular calcium-sensing receptor (CaR) is expressed in pancreatic β-cells where it is thought to facilitate cell-to-cell communication and augment insulin secretion.
Bennett, J. +5 more
core +2 more sources
Insulin Receptor Isoforms and Insulin Receptor/Insulin-Like Growth Factor Receptor Hybrids in Physiology and Disease [PDF]
In mammals, the insulin receptor (IR) gene has acquired an additional exon, exon 11. This exon may be skipped in a developmental and tissue-specific manner. The IR, therefore, occurs in two isoforms (exon 11 minus IR-A and exon 11 plus IR-B). The most relevant functional difference between these two isoforms is the high affinity of IR-A for IGF-II.
BELFIORE A +4 more
openaire +4 more sources

