Abstract
Ehrlich ascites tumor-bearing mice were subjected to 14CO2 radiorespirometric analysis after administration of [U-14C]glucose, and the results were compared with the levels of host liver glycolytic enzyme activities and the uptake of the radioactivity into the liver. After IP administration of [U-14C]glucose, there was a progressive decline in respiratory 14CO2 after the transplantation of the Ehrlich ascites tumor cells. The peak time (PT) was about 10 min on day 1, but thereafter was increasingly delayed, and could not be determined on day 13. Peak height (PH) and yield value (YV) were both considerably decreased, and again the magnitudes of the changes increased with the time after transplantation of the tumor cells. Glycolytic enzyme activities in the host liver were at normal levels 13 days after transplantation of the tumor cells. The uptake of the radioactivity into the liver after IP administration of [U-14C]glucose began to decline from day 5 and was 50% the value in normal mice 13 days after transplantation of the tumor cells. These results indicate that the radiorespirometric patterns with [U-14C]glucose reflects hepatic biochemical changes rather well.
Similar content being viewed by others
References
Desmond PV, Branch RA, Calder I, Schenker S (1980) Comparison of [14C]phenacetin and amino [14C]pyrine breath tests after acute and chronic liver injury in the rat. Proc Soc Exp Biol Med 164:173–177
Hepner GW, Vesell ES (1975) Quantitative assessment of hepatic function by breath analysis after oral administration of [14C] aminopyrine. Ann Intern Med 83:632–638
Kojima S, Shiki Y, Kubodera A (1979a) Radiorespirometric analysis of glucose metabolism during feeding with 3′-methyl-4-(dimethylamino)azobenzene in rats. Radioisotopes (Tokyo) 28:78–83
Kojima S, Ishi N, Shiki Y, Kubodera A (1979b) Radiorespirometric analysis of glucose metabolism in the rats during feeding with 3′-methyl-4-(dimethylamino)azobenzene. Radioisotopes (Tokyo) 28:489–493
Kojima S, Yamamoto M, Odate M, Kubodera A (1979c) Radiorespirometric analysis of glucose metabolism in the rat during feedingwith 3′-methyl-4-(dimethylamino)azobenzene; Radiorespirometry after partial hepatectomy. Radioisotopes (Tokyo) 28:546–550
Kojima S, Shiki Y, Kubodera A (1979d) Analysis of radiorespirometric pattern in rats bearing liver injury treated with CCl4. Jpn J Nucl Med 16:141–146 (in Japanese)
Kojima S, Hama Y, Hirokawa Y, Daigo K, Daigo K, Shiki Y, Kubodera A (1980) Analysis of radiorespirometric pattern in the rats treated with alloxan. Jpn J Nucl Med 17:775–780 (in Japanese)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kojima, S., Hama, Y., Sasaki, T. et al. Analysis of the radiorespirometric pattern after administration of [U-14C] glucose to Ehrlich ascites tumor-bearing mice. Eur J Nucl Med 6, 337–341 (1981). https://doi.org/10.1007/BF00251334
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00251334