Abstract:
Pharmaceutical compositions are described comprising amide derivatives of hyaluronic acid for use in the treatment of bone mineralization in bone traumas, in particular in patients with problems of osteopenia or osteoporosis. More specifically, these compositions are used in the treatment of bone mineralization in bone fractures, in patients suffering from pathologies characterized by a T- score index lower than -1, preferably lower than -2.5.
Abstract:
Disclosed are pharmaceutical compositions in gel form comprising a hydrophilic matrix consisting of a hyaluronic acid derivative containing an amide local anaesthetic in base form.
Abstract:
Disclosed is a nanoparticle system consisting of a polymer support or substrate in the form of nanoparticles to which a hydrolase enzyme able to degrade hyaluronic acid and one or more biologically and/or pharmacologically active molecules are covalently bonded, its preparation process and its uses in the diagnostic, prognostic and therapeutic fields.
Abstract:
The present invention relates to an improved process for the production of sulfated hyaluronic acid (HA), sulfated HA-derivatives and/or mixtures thereof, having a high purity and a sulfation degree ranging from 1 to 3, which comprises the following steps: a) solubilization of HA-Na or HA-derivative-Na, in an aprotic solvent in the presence of an organic sulfonic acid; b) sulfation of the solution obtained by the addition of an excess of sulfating agents; c) precipitation in ethanol until a precipitate is obtained; d) solubilization of the precipitate thus obtained in a mixture of water and the aprotic solvent used in step a), in the presence of an excess of NaCl, with a pH adjustment within a range of 3 to 4; e) further precipitation with ethanol until a powder is obtained; f) washings of the powder coming from step e) and drying the product thus obtained under vacuum. The present invention also relates to sulfated HA, sulfated HA derivatives and/or mixtures thereof, having a high purity and sulfation degree ranging from 1 to 3, thus prepared, and the relative pharmaceutical mixtures.
Abstract:
The present invention relates to a high adhesion dermal therapeutic system comprising an adhesive polymeric matrix with a salt of Diclofenac.
Abstract:
The present invention relates to a derivative of carnosine (β-alanyl-L-histidine) having formula (1), obtained by the functionalization of hyaluronic acid with carnosine.
Abstract:
The present invention relates to a process for the synthesis of conjugates of glycosaminoglycanes (GAG) with biologically active molecules of varying nature, comprising small molecules and macro-molecules. In particular, the present invention relates to the conjugation of hyaluronic acid (HA) and its derivatives with polypeptides and proteins with a biological action, such as, for example, interferons, erythropoietins, growth factors, insulin, cytokines, antibodies and hormones. An object of the present invention also relates to isolatable intermediates obtained by the partial or total reaction of GAG with protected amino aldehydes in the conjugation process mentioned above.
Abstract:
The invention relates to Streptomyces koganeiensis ATCC 31394 hyaluronidase having molecular weight of 21.6 kDalton, which has hyaluronidase activity and stability markedly higher than those of the hyaluronidase obtained from such microorganism to date. The invention further relates to a process for the isolation and purification of said hyaluronidase and its use for the preparation of pharmaceutical compositions or as an analytical reagent.
Abstract:
A process for the preparation of Rotigotine (I) and of pharmaceutically acceptable salts thereof, which comprises the reductive amination of an amine of formula 6 with the 2-thienylacetic acid- sodium boron hydride complex and which makes use of hydrobromide 5 as an intermediate (II) The process is advantageous from the industrial point of view in that it allows to obtain Rotigotine with high enantiomeric purity starting from optically active 5,6,7,8-tetrahydro-6-(S)-N-propylamino-l-methoxy- naphthalene (2), avoiding the use of dangerous reactives, the need for difficult chromatographic separation or the formation of by-products. Furthermore, two novel crystalline forms are disclosed.
Abstract:
Process for the preparation of phosphatidylserine of formula (I) wherein R 1 and R 2 independently represent a saturated, mono-unsaturated or polyunsaturated acyl C 10 -C 30 , X=OH or OM where M=alkaline or alkaline earth metal, ammonium, alkylammonium (including the inner salt) including the transphosphatidylation reaction between phosphatidylcholine of the general formula (II) wherein R 1 and R 2 and X have the above specified meanings, R 3 =CH 2 -CH 2 - NH 2 o CH 2 -CH 2 -N + (CH 3 ) 3 and Serine in D, L or racemic form catalysed by the phospholipase D enzyme (PLD), characterised in that said reaction is carried out in a hydroalcoholic medium containing an aliphatic alcohol and in the presence of bivalent metal oxide.