摘要:
The present invention relates to a method of producing hyaluronic acid (HA) in Escherichia coli and Bacillus megaterium through episomal plasmid vectors wherein the gene is under the control of strong promoter T7, preferably under the control of strong promoter T7 of bacteriophage T7, and a system for the selection of stable bacterial strains producing high levels of hyaluronic acid.
摘要:
The present invention relates to compositions based on silver and hyaluronic acid and their use in the management of cutaneous lesions of various origin (acute and chronic wounds, ulcerations, burns, etc.) mainly when characterized by the presence of exudate and hence at high risk of infection.
摘要:
Crosslinked derivatives of polycarboxylated polysaccharides are described, wherein at least one of the polysaccharide chains consists of hyaluronic acid or a derivative thereof, crosslinked by means of reactions of the “click chemistry” type and their use in the field of viscosupplementation, plastic surgery, oncologic and reconstructive surgery and also as matrices for controlled release systems of biologically and/or pharmacologically active molecules and/or macromolecules.
摘要:
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.
摘要:
Biomaterials obtainable by mixing the autocrosslinked derivative of hyaluronic acid (ACP) with the derivative (HBC) of hyaluronic acid crosslinked with 1,4-butanediol diglycidyl ether (BDDE) in the weight ratio of between 10:90 and 90:10 as novel fillers.
摘要:
Use of hyaluronic acid derivatives for the preparation of biomaterials for the prevention of the formation and the treatment of cutaneous scars, wherein the hyaluronic acid derivatives are optionally combined with pharmacologically or biologically active compounds.
摘要:
The present invention concerns amide derivatives of hyaluronic acid (HA) and biomaterials made of amide derivatives of hyaluronic acid (HA), particularly the hexadecylamide of HA, administered by the intra-articular route as a partial/total substitute for synovial fluid to treat joints affected by osteoarthrosis (OA) as well as cases of joint inflammation and/or trauma that cause damage to the cartilage and/or synovia (associated with pain).Lastly, we describe and claim their use in the treatment of joints where the entire structure shows signs of wear due to physiological aging.
摘要:
The use is described of a conjugate between hyaluronic acid or a derivative thereof and antitumoral drugs for the preparation of pharmaceutical compositions for the topical treatment of hyperproliferative skin diseases.
摘要:
Process for the preparation of phosphatidylserine of formula wherein R1 and R2 independently represent a saturated, mono-unsaturated or polyunsaturated acyl C10-C30, 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 wherein R1 and R2 and X have the above specified meanings, R3=CH2—CH2—NH2 o CH2—CH2—N+(CH3)3 and Serine in D, L or racemic form catalized by the phospholipase D enzyme (PLD), characterized in that said reaction is carried out in a hydroalcoholic medium containing an aliphatic alcohol and in the presence of bivalent metal oxide.