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  2. Glucagon - Wikipedia

    en.wikipedia.org/wiki/Glucagon

    n/a Ensembl n/a n/a UniProt n a n/a RefSeq (mRNA) n/a n/a RefSeq (protein) n/a n/a Location (UCSC) n/a n/a PubMed search n/a n/a Wikidata View/Edit Human Glucagon is a peptide hormone, produced by alpha cells of the pancreas. It raises the concentration of glucose and fatty acids in the bloodstream and is considered to be the main catabolic hormone of the body. It is also used as a medication ...

  3. Glycogenolysis - Wikipedia

    en.wikipedia.org/wiki/Glycogenolysis

    Glycogen debranching enzyme then transfers three of the remaining four glucose units to the end of another glycogen branch. This exposes the α[1→6] branching point, which is hydrolysed by α[1→6] glucosidase, removing the final glucose residue of the branch as a molecule of glucose and eliminating the branch. This is the only case in which ...

  4. Starvation response - Wikipedia

    en.wikipedia.org/wiki/Starvation_response

    In the absence of dietary sugars and carbohydrates, glucose is obtained from the breakdown of stored glycogen. Glycogen is a readily-accessible storage form of glucose, stored in notable quantities in the liver and skeletal muscle. [5] When the glycogen reserve is depleted, glucose can be obtained from the breakdown of fats from adipose tissue.

  5. Blood sugar regulation - Wikipedia

    en.wikipedia.org/wiki/Blood_sugar_regulation

    If the blood glucose level falls to dangerously low levels (as during very heavy exercise or lack of food for extended periods), the alpha cells of the pancreas release glucagon, a peptide hormone which travels through the blood to the liver, where it binds to glucagon receptors on the surface of liver cells and stimulates them to break down glycogen stored inside the cells into glucose (this ...

  6. Glycogen - Wikipedia

    en.wikipedia.org/wiki/Glycogen

    Glycogen functions as one of three regularly used forms of energy reserves, creatine phosphate being for very short-term, glycogen being for short-term and the triglyceride stores in adipose tissue (i.e., body fat) being for long-term storage. Protein, broken down into amino acids, is seldom used as a main energy source except during starvation ...

  7. Carbohydrate metabolism - Wikipedia

    en.wikipedia.org/wiki/Carbohydrate_metabolism

    Glycolysis only requires the input of one molecule of ATP when the glucose originates in glycogen. [1] Alternatively, glucose-6-phosphate can be converted back into glucose in the liver and the kidneys, allowing it to raise blood glucose levels if necessary. [2] Glucagon in the liver stimulates glycogenolysis when the blood glucose is lowered ...

  8. Fatty acid metabolism - Wikipedia

    en.wikipedia.org/wiki/Fatty_acid_metabolism

    [20] [22] [23] D-lactate metabolism (to glucose) is slow or impaired in humans, so most of the D-lactate is excreted in the urine; thus D-lactate derived from acetone can contribute significantly to the metabolic acidosis associated with ketosis or isopropanol intoxication. [20] L-Lactate can complete the net conversion of fatty acids into ...

  9. Glucagon receptor agonist - Wikipedia

    en.wikipedia.org/wiki/Glucagon_receptor_agonist

    Glucagon is a hormone that generally opposes the action of insulin. [1] It increases blood glucose by stimulating the production of glucose in the liver via glycogenolysis (breakdown of glycogen) and gluconeogenesis (production of glucose from non-carbohydrate sources). [2]

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