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A method to potentiate enteral absorption of interferon and selective delivery into lymphatics
The potentiated absorption of human fibroblast interferon (HuIFN-beta) with the aid of lipid-surfactant mixed micelles from the rat large intestine and lymphatic delivery were studied. The administration of HuIFN-beta with saline solution alone into the lumen of the large intestine indicated no detectable HuIFN-beta in the serum or the lymph for 5 h. Neither lipid (linoleic acid) nor surfactant ( HCO60 , polyoxyethylene hardened castor oil derivative) could promote the absorption of HuIFN-beta. However, the administration with linoleic acid- HCO60 mixed micelles enabled the great absorption of HuIFN-beta from the large intestine, and HuIFN-beta was delivered into the lymphatics with an extremely high selectivity.
The potentiated absorption of human fibroblast interferon (HuIFN-beta) with the aid of lipid-surfactant mixed micelles from the rat large intestine and lymphatic delivery were studied. The administration of HuIFN-beta with saline solution alone into the lumen of the large intestine indicated no detectable HuIFN-beta in the serum or the lymph for 5 h. Neither lipid (linoleic acid) nor surfactant ( HCO60 , polyoxyethylene hardened castor oil derivative) could promote the absorption of HuIFN-beta. However, the administration with linoleic acid- HCO60 mixed micelles enabled the great absorption of HuIFN-beta from the large intestine, and HuIFN-beta was delivered into the lymphatics with an extremely high selectivity.