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  • Title: Gangliosides in the blood plasma: levels of ganglio-series gangliosides in the plasma after administration of brain gangliosides.
    Author: Suzuki Y, Hirabayashi Y, Sagami F, Matsumoto M.
    Journal: Biochim Biophys Acta; 1988 Oct 14; 962(3):277-81. PubMed ID: 3048415.
    Abstract:
    The temporal change in the levels of the gangliotetraose-series gangliosides, i.e., GMla, GDla, GD1b, GT1b, in the blood plasma after intramuscular administration of bovine brain gangliosides (5 mg/kg) to beagle dogs (11.3-12.2 kg) was determined with high sensitivity by a recently developed thin-layer chromatography/enzyme-immunostaining method (Hirabayashi, Y., Koketsu, K., Higashi, H., Suzuki, Y., Matsumoto, M., Sugimoto, M. and Ogawa, T. (1986) Biochim. Biophys. Acta 876, 178-182). The amounts of GMla, GDla, GD1b, GT1b and their combined total in the plasma of beagle dogs before administration of gangliosides were 21 +/- 1, 36 +/- 7, 15 +/- 2, 16 +/- 2 and 88 +/- 6 pmol/ml of blood plasma, respectively. Trapezoidal calculation showed that the times of the maximum levels of GMla, GDla, GDlb, GTlb and the total of the their levels in the plasma were 8.0 +/- 1.2, 8.7 +/- 0.7, 6.3 +/- 2.0, 17.0 +/- 7.0 and 8.7 +/- 0.7 h after the administration of gangliosides, and their maximum concentrations were 517 +/- 37, 654 +/- 53, 160 +/- 5, 184 +/- 20 and 1383 +/- 74 pmol/ml, respectively. The maximum level of each ganglioside decreased gradually, reaching the normal level after 10 days. The half-maximum level of each ganglioside occurred 2-3 days after the administration. Asialo GM1 (GA1) was not detected plasma at any of the test times.
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