Thromb Res 1999 Feb 01;933:129-35. doi: 10.1016/s0049-3848(98)00171-6.

Oral absorption and clearance of partially depolymerized fucosyl chondroitin sulfate from sea cucumber.

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Partially depolymerized holothurian glycosaminoglycan (DHG), a fucosyl chondroitin sulfate chains isolated from sea cucumber, was administered by the intravenous and oral routes to experimental animal. After intravenous injection, clearance of DHG, as measured by the postcolumn HPLC, displayed complex kinetics that were not dose dependent. DHG was excreted unchanged in the urine. No degradation products of DHG were detected by either gel filtration or anion exchange HPLC at any time in plasma, indicating that administered DHG is not catabolyzed by mammalian. Anion exchange chromatographic behavior of DHG excreted into urine after oral administration showed that partial desulfation might occur through intestinal absorption. After oral administration of DHG (50 mg/kg), 0.1% of the dose was found in urine collected for 24 hours. More than 5% of intravenously administered DHG (1 mg/kg) was excreted into urine in 24 hours. These results are suggesting that orally administered macromolecules such as DHG are absorbed in the gastrointestinal tract.

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Genes referenced: LOC100887844