Remitting agent for nephrotic syndrome and hepatopathy symptoms
US5547945A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1994 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | Jul 7, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08B37/006
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A remitting agent for nephrotic syndrome and hepatopathy symptoms is provided that which comprises water-soluble polysaccharides having poly-D-galacturonic acid as an effective constituent; polysaccharides having the following characteristic properties which are extractable from Tanjin with water or an aqueous solvent: A. Sugar content: 60 to 100%. PA0 (1) Sugar composition: PA1 40 to 80% of uronic acid (composed almost entirely of D-galacturonic acid) and PA1 10 to 30% of neutral sugars PA0 (2) Neutral sugar composition: PA1 0 to 15% of rhamnose PA1 0 to 15% of glucose PA1 25 to 55% of galactose PA1 30 to 60% of arabinose PA1 0 to 15% of mannose B. Molecular weight: 150,000 to 300,000; the invention also provides a process for producing the above-described polysaccharides which comprises allowing an aqueous extract of Tanjin to pass through a porous polymeric resin, followed by purification through gel filtration chromatography.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.