Systemic glucose homeostasis

Systemic glucose homeostasis is the complex physiological process of maintaining blood glucose concentrations within a narrow range, typically 70-100 mg/dL in a fasting state (StatPearls, 2023). This balance is achieved through a sophisticated feedback loop involving the pancreas, liver, skeletal muscle, and adipose tissue, primarily regulated by the hormones insulin and glucagon (NIH, 2022). When blood glucose levels rise, insulin is secreted to promote glucose uptake and storage; conversely, when levels fall, glucagon stimulates glucose production via glycogenolysis and gluconeogenesis (PubMed, PMID: 29494240). Chronic disruption of this homeostasis results in metabolic disorders such as diabetes mellitus, which can lead to severe microvascular and macrovascular complications (WHO, 2023). While systemic glucose homeostasis is not a single molecular target, it is the primary therapeutic objective for a wide range of pharmacological agents including insulin sensitizers, secretagogues, and glucose transport inhibitors. Maintaining this balance is critical for providing a continuous energy supply to tissues, particularly the brain, while preventing the toxic effects of chronic hyperglycemia. The system also integrates signals from incretins, cortisol, and growth hormone to fine-tune metabolic responses to various physiological demands (PubChem, 2024).

Other names

Blood sugar regulationGlycemic controlGlucose metabolismGlucose regulation

Drugs modulate systemic glucose homeostasis by targeting specific molecular entities such as the insulin receptor, GLP-1 receptor, DPP-4 enzyme, or SGLT2 transporter to enhance insulin secretion, improve insulin sensitivity, or promote renal glucose excretion.