[Dynamics of diurnal content of carbohydrate metabolism intermediates in the rat liver].
Diurnal variations of glycolytic intermediates and Pi concentrations are studied in the laboratory rat liver. It is shown that tissue concentrations of glucose, glucose-6-phosphate and Pi vary synchronously during the day exhibiting maxima in light period and minima at night. Circadian fructose 1,6-diphosphate rhythm is similar to the rhythms of the metabolites mentioned above. Diurnal variations of the phosphoenolpyruvate and pyruvate content in the tissue are shifted up to 3-6 h. The data indicate that circadian regulation of hepatic carbohydrate energy metabolism did not take place at control points of gluconeogenesis only.
D000818:Animals; D050260:Carbohydrate Metabolism; D002940:Circadian Rhythm; D005635:Fructosediphosphates / Q000378:metabolism; D006019:Glycolysis; D008099:Liver / Q000378:metabolism*; D008297:Male; D010710:Phosphates / Q000378:metabolism; D051381:Rats
D005635:Fructosediphosphates; D010710:Phosphates; C029063:fructose-1,6-diphosphate
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