摘要:
Described herein are methods of producing prebiotic compositions that are made up of oligosaccharide compositions, as well as methods of using such prebiotic compositions in nutritional compositions and methods of producing such oligosaccharide and nutritional compositions.
摘要:
The invention relates to materials and methods of conjugating a water soluble polymer to an oxidized carbohydrate moiety of a blood coagulation protein comprising contacting the oxidized carbohydrate moiety with an activated water soluble polymer under conditions that allow conjugation. More specifically, the present invention relates to the aforementioned materials and methods wherein the water soluble polymer contains an active aminooxy group and wherein an oxime linkage is formed between the oxidized carbohydrate moiety and the active aminooxy group on the water soluble polymer. In one embodiment of the invention the conjugation is carried out in the presence of the nucleophilic catalyst aniline. In addition the generated oxime linkage can be stabilized by reduction with NaCNBH 3 to form an alkoxyamine linkage.
摘要:
The present invention relates to a branched or unbranched free or glycosidically bound polysialic acid according to general formula (1) as given as follows (poly-±(2 †’ 8 or 2 †’ 9)Neu5Ac) n (1) wherein Neu5Ac is N-acetylneuraminic acid, and n is an integer in the range from 14 to 26 and/or pharmaceutically acceptable salts thereof, a polysaccharide composition comprising the polysialic acid (1), and the use as a medicament, particularly in the therapeutic and/or prophylactic treatment of degenerative, demyelinating and inflammatory diseases of the central nervous system, and degenerative or inflammatory retinal diseases.
摘要:
The invention relates to a vector targeting thrombus, having t-PA binding property consisting of a thrombus targeting fucoidan moiety, which is covalently linked to one or more t-PA binding amino groups by the reducing end of the said fucoidan moiety.
摘要:
The invention relates, in part, to the use of compositions of poly N-acetylated glucosamine (PNAG) and antibodies specific to PNAG in the prevention and treatment of infections by certain PNAG-positive pathogens and in detection (including diagnostic) methods.
摘要:
The present application relates to a method for preparing glucans from Aspergillus niger , characterized in that it includes: (i) at least partially deacetylating the mycelium of the Aspergillus niger ; (ii) treating the deacetylated or partially deacetylated mycelium with acid, preferably after purification and/or washing, in order to obtain insoluble glucans and soluble chitosan, wherein said acid treatment includes contacting the deacetylated mycelium with an acid solution; (iii) separating the soluble chitosan from the glucans; (iv) treating the glucans with an alkali, which includes contacting the glucans with an alkali solution so as flocculate the glucans; and (v) drying the flocculated glucans in order to obtain a glucan powder. The present invention further relates to the resulting glucans, to compositions including said glucans, and to the uses thereof. The glucans of the invention can be used as immunostimulants.