Abstract:
The present invention relates to conjugates of hydroxyalkyl starch and a protein wherein these conjugates are formed by a convalent linkage between the hydroxyalkyl starch or a derivative of the hydroxyalkyl starch and the protein. The present invention also relates to the method of producing these conjugates and the use of these conjugates.
Abstract:
For cooling organs and tissue in transplantation medicine, only ice preparations are used, which are not gelatinously soft and are brought from frozen, sterile, pyrogen-free, isotonic infusion solutions, such as 5% glucose or 0.9% salt solution, to the required degree of comminution by expensive mechanical disintegration. The lack of gel-like properties of the preparations and the expensive manufacturing process are very disadvantageous. There was therefore a need for the production of a cooling preparation for transplantation medicine, which is gelatinous, transparent and adequately stable mechanically at temperatures ranging from -5°C to 4°C and nevertheless remains moldable. According to the invention, such a preparation can be produced from gelatin solutions ranging in concentration form 3 to 20% by weight, which have been isotonized or adjusted with electrolytes to 280 - 650 mosmol/kg and have an almost neutral pH, simply by cooling or freezing.
Abstract:
The invention relates to a method for the preparation of a hydroxyalkyl starch derivative which comprises reacting hydroxyalkyl starch (HAS) via the optionally oxidised reducing end of the HAS with the amino group M of a crosslinking compound which, apart from the amino group, comprises a specifically protected carbonyl group, namely an acetal group or a ketal group.
Abstract:
The present invention relates to conjugates of hydroxyalkyl starch and a protein wherein these conjugates are formed by a covalent linkage between the hydroxyalkyl starch or a derivative of the hydroxyalkyl starch and the protein. The present invention also relates to the method of producing these conjugates and the use of these conjugates.
Abstract:
The present invention relates to conjugates of hydroxyalkyl starch and a granulocyte colony stimulating factor protein (G-CSF) wherein these conjugates are formed by a covalent linkage between the hydroxyalkyl starch or a derivative of the hydroxyalkyl starch and the protein. The present invention also relates to the methods of producing these conjugates and the use of these conjugates.
Abstract:
The invention relates to compounds, comprising a conjugate of hydroxyalkyl starch (HAS) and an active agent, whereby the hydroxyalkyl starch is either directly covalently bonded to the active agent, or by means of a linker. The invention further relates to methods for the production of a covalent HAS-active agent conjugate, whereby HAS and an active agent are reacted in a reaction medium, characterised in that the reaction medium is water or a mixture of water and an organic solvent, comprising at least 10 wt. % water.
Abstract:
The invention relates to novel pharmaceutical forms for antibiotics containing amino sugar, amphotericin B, daunorubicin and doxorubicin, in which the known side effects are reduced and which can be used in a simple manner. The antimycotic agent B is nephrotoxic. The cytostatic agents daunorubicin and doxorubicin are highly cardiotoxic. The novel pharmaceutical forms are antibiotic-starch conjugates, wherein the antibiotic is combined with the polysaccharide at the reducing end thereof by means of a peptide bond. According to the invention, said bond is carried out by means of J2-oxidation of the starch derivative at the reducing end thereof in an aqueous alkaline solution, and by coupling the starch derivative oxidised thereby to the antibiotic in an organic solution. The conjugates obtained are less toxic. The polysaccharide part can be decomposed by serum- alpha -amylase and the peptide bond can be accessed by an enzymatic attack.
Abstract:
The present invention relates to conjugates of hydroxyalkyl starch and a protein wherein these conjugates are formed by a convalent linkage between the hydroxyalkyl starch or a derivative of the hydroxyalkyl starch and the protein. The present invention also relates to the method of producing these conjugates and the use of these conjugates.
Abstract:
The present invention relates to polymers functionalized by an aminooxy group or a derivative thereof, conjugates, wherein the functionalized polymers are covalently coupled with a protein by an oxime linking group, a process for preparing the functionalized polymers, a process for preparing the conjugates, functionalized polymers as obtainable by the process of the present invention, conjugates as obtainable by the process of the present invention, and pharmaceutical compositions comprising at least one conjugate of the present invention and the use of said conjugates and compositions for the prophylaxis or therapy of the human or animal body.
Abstract:
The invention relates to parenterally administrable, especially infusible, aqueous paracetamol solutions which are stable in storage and free of particles and discoloration. Said solutions contain a mixture of: a) between 1 and 17 grams of paracetamol per litre, and b) between 0.01 and 0.17 grams of at least one physiologically compatible antioxidant per litre, selected from the group comprising ascorbic acid, N-acetyl-L-cysteine and stabiliser compounds containing SH groups which are different from N-acetyl-L-cysteine. The aqueous solution is free of organic solvents and has a pH value of between 5.5 and 6.5 and an oxygen content of less than 0.5 milligrams per litre. The invention also relates to a method for producing such solutions, and glass or plastic containers containing said solutions.