ReviewMolecular biology reports2022
Physiological significance of bistable circuit design in metabolic homeostasis: role of integrated insulin-glucagon signalling network.
Review in Molecular biology reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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0 citing papers in PubMed, 2 citations in OpenAlex.
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3 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundInsulin and glucagon signalling pathways operate in a synchronised manner to regulate metabolic homeostasis in different physiological conditions (like postprandial, fasting & exercise). Non-linear positive feedback loops involving effector molecules such as AKT and PKA in anabolic and catabolic signalling modules have a key role in eliciting bistable response in these networks.
methodsWe have reviewed literature on insulin and glucagon signaling pathways in metabolic regulation along with the relevance of bistability in homeostasis. An ODE-based integrated signalling network model is used to simulate insulin and glucagon resistance conditions. Modifications in homeostatic to anabolic and catabolic switch activation thresholds are analyzed, indicating the effectiveness of insulin and glucagon signalling pathways in normal and diseased conditions.
resultsPerturbation analysis of the kinetic model provides valuable insights on bistability and its characterization with respect to endocrine inputs. Disturbance in bistability is linked with dysregulation of plasma macronutrient levels (glucose, fatty acids and amino acids) in abnormal conditions like insulin and glucagon resistance, which is associated with obesity, type 2 diabetes mellitus and non-alcoholic fatty liver disease.
conclusionsThis article highlights the role of Systems biology approach in explaining plausible mechanisms underlying metabolic abnormalities. It captures essential crosstalk and feedback mechanisms that play a key role in inducing bistable response in a variety of physiological situations, as well as hints at how to reverse insulin and glucagon resistance.
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