glucagon

glucagon
/glooh"keuh gon'/, n. Biochem.
a hormone secreted by the pancreas that acts in opposition to insulin in the regulation of blood glucose levels.
[1923; prob. GLUC- + Gk ágon prp. of ágein to lead, drive; see -AGOGUE]

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      a pancreatic hormone produced by cells in the islets of Langerhans. Glucagon, a protein of low molecular weight, strongly opposes the action of insulin; it raises the concentration of sugar (glucose) in the blood by promoting the breakdown of glycogen (the form in which glucose is stored in the liver). It also reduces the rate of glycogen synthesis, promotes the breakdown of protein, and promotes the metabolism of fat. Gastrointestinal glucagon, another form, is secreted into the blood when glucose is ingested; its only action appears to be to stimulate the secretion of insulin.

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Universalium. 2010.

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  • glucagon — glucagon. См. глюкагон. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Glucagon — Glucagon, in den A Zellen der Langerhans Inseln gebildetes Peptidhormon aus 29 Aminosäuren, das bei Abfall der Blutzuckerkonzentration vermehrt ausgeschieden wird und v.a. in der Leber durch Erhöhung der Phosphorylase Aktivität den Abbau von… …   Deutsch wörterbuch der biologie

  • glucagon — 1923, from GLUCO (Cf. gluco ) + Gk. agon, prp. of agein to lead (see ACT (Cf. act) (n.)) …   Etymology dictionary

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