Results 211 to 220 of about 98,730 (257)

Regulation of glycogen synthesis in the liver

The American Journal of Medicine, 1988
The glycogen synthase-mediated reaction is rate-limiting for glycogen synthesis in the liver. Glycogen synthase has been purified essentially to homogeneity and has been shown to be a dimer composed of identical subunits. It is regulated by a phosphorylation-dephosphorylation mechanism, catalyzed by kinases and a phosphatase. The subunits of synthase D,
F Q, Nuttall, D P, Gilboe, M C, Gannon, C B, Niewoehner, A W, Tan   +4 more
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Glycogen synthesis in the astrocyte: from glycogenin to proglycogen to glycogen

The FASEB Journal, 1993
The astrocyte of the newborn rat brain has proven to be a versatile system in which to study glycogen biogenesis. We have taken advantage of the rapid stimulation of glycogen synthesis that occurs when glucose is fed to astrocytes, and the marked limitation on this synthesis that occurs in astrocytes previously exposed to ammonium ...
J, Lomako, W M, Lomako, W J, Whelan, R S, Dombro, J T, Neary, M D, Norenberg   +5 more
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Glycogen synthesis and glycogen synthetase in rat ascites hepatomas of low and high glycogen content

Biochimica et Biophysica Acta (BBA) - General Subjects, 1971
Abstract 1. 1. Glycogenic capacities of two rat ascites hepatomas, namely, glycogen- deficient AH-130 and glycogen-rich AH-66F, were compared either at whole cell level with [14C]glucose as substrate or by studying the activity and properties of glycogen synthetase. 2. 2. With [14C]glucose as substrate, glycogen synthesis was initiated in the
R, Saheki, K, Sato, S, Tsuiki
openaire   +2 more sources

Mechanism of estrogen action in glycogen synthesis

Archives of Biochemistry and Biophysics, 1967
Abstract Estrogen treatment produced a rapid increase in the free-glucose concentration of the rat uterus. Comparison of the expansion of the glucose space with the expansion of the chloride space (used as an index of extracellular volume) revealed that glucose accumulated in intracellular water.
J, Bitman, H C, Cecil
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The role of insulin in the synthesis of fetal glycogen

Canadian Journal of Physiology and Pharmacology, 1969
Experiments were performed on 21-day-old rat fetuses to determine the effect of insulin or insulin antibodies on the incorporation of 14C-glucose into liver and muscle glycogen. Radioactive glucose was infused for 4 h into the maternal circulation; experiments were done on unanesthetized animals.
J G, Manns, R P, Brockman
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In vivo synthesis of glycogen by phosphorylase system

Histochemistry, 1980
Application of conventional histochemical techniques to the living chick retina demonstrates that phosphorylase can synthesize glycogen (polyglucose) in vivo, in the paraboloid of the accessory cone. Natural in vivo glycogen synthesis may therefore be due to glycogen synthetase and phosphorylase systems, although phosphorylase is normally regarded as a
T, Amemiya, H, Yoshida
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Glycogen synthesis in the insect fat body☆

Biochimica et Biophysica Acta, 1963
Abstract A tissue extract prepared from the fat body of the american cockroach ( Periplaneta americana L.) has been shown to contain UDPG-pyrophosphorylase (EC 2.7.7.9) and UDPG-glycogen transglucosylase (EC 2.4. i.ii ) activity. The latter enzyme is not stimulated by Glc-6- P .
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Control of glycogen synthesis in health and disease

Diabetes/Metabolism Reviews, 1987
Investigations in our laboratory have shown that the activity of glycogen synthase phosphatase in the liver is shared by at least two functionally distinct proteins: a G-component, which is tightly associated with glycogen particles, and a soluble S-component.
W, Stalmans, M, Bollen, L, Mvumbi
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Glycolysis, gluconeogenesis and glycogen synthesis

2004
The bacterial glycogen phosphorylase is a pyridoxal phosphate enzyme that transform glycogen to glucose 1-phosphate, which is then transformed to glucose-6-phosphate, a normal intermediate of glycolysis.
openaire   +1 more source

Pathways of hepatic glycogen synthesis in humans

Medicine & Science in Sports & Exercise, 1991
To estimate the relative contribution of the indirect pathway to liver glycogen formation in humans, different experimental approaches have been used. Although the estimates vary, it appears that in overnight fasted humans approximately 50% of liver glycogen is derived from the direct pathway following a glucose load and that the direct pathway ...
I, Magnusson, G I, Shulman
openaire   +2 more sources