VOPROSY MEDITSINSKOI KHIMII (ISSN 0042-8809)

Standards of hourly excretion of B group vitamins with urine for children aged 9 to 13 years

   
Kodentsova V.M., Vrzhesinskaia O.A., Denisova S.N., Sokol'nikov A.A., Beketova N.A., Isaeva V.A., Netrebenko O.K., Spirichev V.B.
PubMed Id: 8379109
Year: 1993  Volume: 39  Issue: 4  Pages: 27-31
Values of hour excretion of vitamins B1, B2, B6 and PP with urine in children of 9-13 years, studied under conditions of normal consumption of these vitamins, were estimated considering the correlation between the vitamins B concentration in blood and excretion of their metabolites with urine as well as using these parameters dependence on content of the vitamins in daily ration; for this purpose 35 adult persons and 31 children of both sexes were examined. Normal rate of riboflavin excretion with urine constituted 10-11 micrograms/h in children of this age, while of thiamine-11-12 micrograms/h. Under conditions of normal thiamine consumption, activity of erythrocyte transketolase, measured after preinactivation of transaldolase, exceeded 35 mumol/h/I ml of erythrocytes. Rates of excretion with urine of 4-pyridoxic acid and I-methyl nicotinamide were similar both in children and in adult persons and were equal to more than 40 micrograms/h and 400-600 micrograms/h, respectively.
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Kodentsova, V. M., Vrzhesinskaia, O. A., Denisova, S. N., Sokol'nikov, A. A., Beketova, N. A., Isaeva, V. A., Netrebenko, O. K., Spirichev, V. B. (1993). Standards of hourly excretion of B group vitamins with urine for children aged 9 to 13 years. Voprosy Meditsinskoi Khimii, 39(4), 27-31.
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