Abstract:
An aqueous formulation for parenteral use, comprises sodium hyaluronate having a molecular weight from 500,000 to 5,000,000 D in an amount from 0.01 to 3 % w/v, based on the aqueous formulation, a non saline physiologically acceptable osmogen in an effective amount to impart to the aqueous formulation a physiological osmolarity of from 270-330 mOsm/l, and an amphoter acting as an inhibitor of hyaluronidase activity.
Abstract:
There is provided a process for the purification of crude diacerein, wherein diacerein is crystallized from 1-methyl-2-pyrrolidone, or a mixture of 1-methyl-2- pyrrolidone and a co-solvent.
Abstract:
Process for the preparation of rhein or diacerein comprising oxidising aloe-emodin with hydrogen peroxide or an alkali-metal peroxide oxidant in a basic reaction medium, optionally in the presence of an organic solvent, to obtain rhein. Optionally followed by acetylating the rhein thus obtained using an acetylating agent to obtain diacerein.
Abstract:
A process for preparing aloe-emodin from aloin by oxidizing aloin by treatment with an oxygen-containing gas in the presence of an acid. The aloe-emodin may be used for the production of rhein and diacerein by oxidizing aloe-emodin by treatment with a chromium-free oxidizing medium to obtain rhein and purifying the rhein obtained. The rhein may be acetylated to obtain diacerein.
Abstract:
The present invention relates to wound dressings having a wound contacting layer that contains a wound healing composition and which is adapted to maintain a temperature different from ambient, for example achieve and maintain a heat-absorbing effect on the underlying tissues. The specific physico-chemical structure of the devices of the invention allows fluid containment and absorption of wound secretions whilst avoiding skin macerations.
Abstract:
Process for the preparation of aloe-emodin from aloin comprising oxidizing aloin by treatment with an oxygen containing gas, in an acid reaction medium, in the presence of a copper salt catalyst.
Abstract:
Compounds that may have anti-inflammatory activity have the general formula (I): Wherein R 1 , R 2 , R 3 are each independently H or a C 1-4 alkyl group or a C 2-4 acyl group; R 4 and R 5 are each independently H or a group of formula -SO 3 R 6 , wherein R 6 is H or a C 1-4 alkyl group or a C 2-4 acyl group; with the proviso that at least one of R 4 and R 5 is a group of formula -SO 3 R 6 , or a pharmaceutically acceptable salt thereof.
Abstract translation:可具有抗炎活性的化合物具有通式(I):其中R1,R2,R3各自独立为H或C1-4烷基或C2-4酰基; R4和R5各自独立地为H或式-SO3R6的基团,其中R6为H或C1-4烷基或C2-4酰基; 条件是R 4和R 5中的至少一个是式-SO 3 R 6的基团,或其药学上可接受的盐。
Abstract:
Disclosed is a device and method which provide a surgical therapy for in situ treatment and repair of intra-articular cartilage lesions and/or defects. The device is an implantable laminate cartilage repair patch which is bio-compatible and physiologically absorbable. The cartilage repair patch has a first outer cell occlusive layer; a second outer, cell porous layer adapted to be disposed proximate a subchondral bone wound site; and a cartilagenic matrix disposed between the first and second layers. The cartilagenic matrix is a sink for diffusion of autologous stem cells and includes chemical components promoting generation of hyaline-like cartilage in the presence of the autologous stem cells. The method of the present invention provides the autologous compositions, which when used in combination with the repair patch provides a therapeutic system to regenerate replacement hyaline-like intraarticular cartilage.
Abstract:
A process for preparing a sterile ready-to-use aqueous pharmaceutical formulation comprises a high molecular weight hyaluronic acid salt (HA) at a specified concentration, comprising the steps of: providing an aqueous formulation comprising high molecular weight HAat a concentration of less than the specified final concentration; passing said aqueous formulation through a filter having a pore sizeless than 0.45 pm; concentrating said aqueous formulation by applying a vacuum and boiling off water until said specified concentration is reached.