Insulinsecretion for a prolonged period exhausts pancreatic β-cells and leads to their apoptosis [5, 6].Insulinresistance also promotes gluconeogenesis in the liver,disruptsglucose uptake in muscles, and induces lipolysis in adipose tissues.Insulinresistance may be developed through both genetic and acquired factors [7].
Insulinsignalingcascade in peripheralinsulin-sensitive tissues regulates whole-body glucose metabolism. Any deregulation in this pathway leads toinsulinresistance, ultimately leading to metabolic diseases like type 1 diabetes, type 2 diabetes, and obesity.Insulinsignalingin the brain has also been studied for many decades and associated with many primary functions like maintenance of ...
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Insulinsignalling is a central regulator of metabolism, orchestrating nutrient homeostasis and coordinating carbohydrate, protein and lipid metabolism. This network operates through dynamic ...
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Another unanswered question is whether interventions known to increase peripheralinsulinsensitivity (exercise, weight loss, andinsulin-sensitizing drugs) act similarly in the brain to reap the benefits of improved CNSinsulinsignaling.
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The phosphoinositide 3-kinase pathway predominantly controls metabolism and the mitogen-activated protein kinase pathway regulates mitochondrial function, proliferation, and growth. Alterations of these signalling cascades hamperinsulinsensitivity, resulting ininsulinresistance in the brain.
The brain was once thought of as aninsulin-insensitive organ. We now know that theinsulinreceptor is present throughout the brain and serves important functions in whole-body metabolism and brain function. Braininsulinsignalingis involved not ...
Insulinresistance (IR) is a disordered biological response forinsulinstimulation through the disruption of different molecular pathways in target tissues.
