hormone secreted by the isles of Langerhans in the pancreas; regulates storage of glycogen in the liver and accelerates oxidation of sugar in cells
A polypeptide hormone that regulates carbohydrate metabolism.
Insulin is a peptide hormone, produced by beta cells of the pancreas, and is central to regulating carbohydrate and fat metabolism in the body. Insulin causes cells in the liver, skeletal muscles, and fat tissue to absorb glucose from the blood. In the liver and skeletal muscles, glucose is stored as glycogen, and in fat cells it is stored as triglycerides. Insulin stops the use of fat as an energy source by inhibiting the release of glucagon. With the exception of the metabolic disorder diabetes mellitus and metabolic syndrome, insulin is provided within the body in a constant proportion to remove excess glucose from the blood, which otherwise would be toxic. When blood glucose levels fall below a certain level, the body begins to use stored sugar as an energy source through glycogenolysis, which breaks down the glycogen stored in the liver and muscles into glucose, which can then be utilized as an energy source. As a central metabolic control mechanism, its status is also used as a control signal to other body systems. In addition, it has several other anabolic effects throughout the body. When control of insulin levels fails, diabetes mellitus can result. As a consequence, insulin is used medically to treat some forms of diabetes mellitus. Patients with type 1 diabetes depend on external insulin for their survival because the hormone is no longer produced internally. Patients with type 2 diabetes are often insulin resistant and, because of such resistance, may suffer from a "relative" insulin deficiency. Some patients with type 2 diabetes may eventually require insulin if other medications fail to control blood glucose levels adequately. Over 40% of those with Type 2 diabetes require insulin as part of their diabetes management plan.
U.S. National Library of Medicine
A 51-amino acid pancreatic hormone that plays a major role in the regulation of glucose metabolism, directly by suppressing endogenous glucose production (GLYCOGENOLYSIS; GLUCONEOGENESIS) and indirectly by suppressing GLUCAGON secretion and LIPOLYSIS. Native insulin is a globular protein comprised of a zinc-coordinated hexamer. Each insulin monomer containing two chains, A (21 residues) and B (30 residues), linked by two disulfide bonds. Insulin is used as a drug to control insulin-dependent diabetes mellitus (DIABETES MELLITUS, TYPE 1).
A hormone produced in the pancreas by the islets of Langerhans, which regulates the amount of glucose in the blood.
The lack of insulin causes a form of Diabetes.
The numerical value of insulin in Chaldean Numerology is: 6
The numerical value of insulin in Pythagorean Numerology is: 8
Sample Sentences & Example Usage
They look at insulin as a drug.
They both admitted that they had decided to switch to over-the-counter insulin.
Maybe sleep and insulin levels may be affecting downstream risks including breast cancer.
Artificial sweeteners trigger insulin, which sends your body into fat storage mode and leads to weight gain.
Our findings suggest that insulin resistance could increase risk for Alzheimer’s disease by affecting glucose metabolism in the brain.
Images & Illustrations of insulin
Translations for insulin
From our Multilingual Translation Dictionary
- insulinaCatalan, Valencian
- insúlín, eyjavakiIcelandic
- インシュリン, インスリンJapanese
- insulinNorwegian Nynorsk
- инзулин, insulin, инсулин, inzulinSerbo-Croatian
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