摘要:
A powdery preparation for mucosal administration which comprises a polymeric medicine and a cationic polymer. The preparation is formed by adding a cationic polymer [especially an aminoalkyl methacrylate copolymer or poly(vinyl acetal diethylaminoacetate)] to a polymeric medicine, optionally further adding a thickening polymer, and powdering the mixture. Thus, the polymeric medicine can be effectively absorbed through a mucous membrane.
摘要:
Provided are PEGylated "interleukin-6" derivatives (PEG-IL-6) having an extended plasma half-life, as well as enhanced in vivo IL-6 biological activities. Methods for producing the modified glycosylated and unglycosylated IL-6 proteins or polypeptides, as well as, for their use in treating hematopoietic disorders and difficiencies, particularly acute thrombocytopenia, are also provided.
摘要:
Novel polypeptides possessing part or all of the primary structural conformation and one or more of the biological properties of a mammalian (e.g., human) pluripotent granulocyte colony-stimulating factor (''hpG-CSF'') which are characterized in preferred forms by being the product of procaryotic or eucaryotic host expression of an exogenous DNA sequence. Sequences coding for part or all of the sequence of amino acid residues of hpG-CSF or for analogs thereof may be incorporated into autonomously replicating plasmid or viral vectors employed to transform or transfect suitable procaryotic eucaryotic host cells such as bacteria, yeast or vertebrate cells in culture. Products of expression of the DNA sequences display, e.g., the physical and immunological properties and in vitro biological activities of isolates of hpG-CSF derived from natural sources. Disclosed also are chemically synthesized polypeptides sharing the biochemical and immunological properties of hpG-CSF.
(a) granulocyte colony-stimulating factor or erythropoietin, (b) surfactant(s), (c) fatty acid(s), and (d) enteric material.
With the oral drug preparations provided by the present invention, therefore, inactivation of the principal ingredient during the process of pharmaceutical manufacturing has been shown to be avoided along with proven effects such as enhanced absorption of the principal ingredient from the intestinal tract particularly as a result of the addition of fatty acid to the drug composition. These may be said not only to lead to a dosage reduction but also to facilitate accurate dose control and increase the practical usefulness of the bioactive proteins in the form of oral preparations.
摘要:
This invention provides a chemically modified protein prepared by combining polyethylene glycol with a polypeptide having substantially the following amino acid sequence and comprising the product of manifestation by a host cell of a foreign DNA sequence (1), wherein n is 0 or 1. This protein has a more lasting action of increasing neutrophils than that of the human granulocyte colony stimulating factor (G-CSF) known heretofore.
摘要:
A method for reducing stored iron and serum iron in mammals is disclosed. In particular, a mammal having an iron overload disorder is administered a therapeutically effective amount of erythropoietin to increase red blood cell production and the mammal is subsequently phlebotomized to remove the excess red blood cells produced.