摘要:
An enzyme capable of degrading sulfated fucan originating in a brown alga of Fucales which is useful in sugar chain engineering; a process for producing this enzyme; an oligosaccharide obtained by treating sulfated fucan with the enzyme; and production thereof.
摘要:
5-Membered ring compounds represented by general formula (I), optically active isomers thereof or salts of the same. These compounds have physiological activities including a carcinostatic effect. In said formula the bond shown by the dotted line in the 5-membered ring represents that this 5-membered ring may be either a cyclopentene ring having a double bond or a saturated cyclopentane ring, and when the 5-membered ring is a cyclopentene ring, X is OR1, Y is =O and Z is H, and when it is a cyclopentane ring, X is =O, Y is OR2 and Z is OR3, (wherein R1 is R4 or -(CO)-R5; R2 is H,-R6 or -(CO)-R7; and R3 is H, R8 or (CO)-R9 (wherein R4, R5, R6, R7, R8 and R9 are the same or different and each represents an aliphatic, aromatic or aliphatic aromatic group, and R5, R7 and R9 may be each H), provided that the case where R2=R3=H is excluded); and W represents a residue obtained by eliminating SH from an SH-containing compound.
摘要:
Medicinal compositions for treating, ameliorating or preventing diseases with sensitivity to 3,6-anhydrogalactopyranose represented by formula (1), foods, drinks, cosmetics, etc. containing as the active ingredient at least one member selected from the group consisting of the above-mentioned compound, its aldehyde, its hydrate and 2-O-methylated derivatives thereof and soluble sugar compounds containing the above compound. This compound also shows, for example, an apoptosis-inducing activity, a carcinostatic activity and inhibitory activities on the production of active oxygen, lipid peroxide radicals and NO, which makes it useful also as the active ingredient of antioxidants and preservatives.
摘要:
Remedies or preventives for diseases with a need for immunoregulation, diseases with a need for inhibition of inflammation, diseases with a need for regulation of tumor necrosis factor production, diseases with a need for regulation of fungal growth, diseases with a need for regulation of cell adhesion or disease with a deed for induction of heat-shock protein, which contain as the active ingredient at least one compound selected from among cyclopentenone derivatives represented by general formula ÄIÜ, optically active isomers and salts thereof, wherein R1 and R2 are the same or different and each represents hydrogen, an aliphatic group, an aromatic group or an aromatic aliphatic group.
摘要:
Therapeutic or preventive agents for diseases requiring apoptosis induction, cancerous diseases, diseases requiring the inhibition of active oxygen production, those requiring the inhibition of nitrogen monoxide production, those requiring the inhibition of prostaglandin synthesis, those requiring the inhibition of synovial cell proliferation, those requiring the induction of heat shock protein production or those requiring the inhibition of α-glycosidase, which contain as the active ingredient compounds selected from among compounds represented by general formula (I), (wherein X and Y are each H or CH2OH, provided that when X is CH2OH, Y is H, while when X is H, Y is CH2OH), those represented by general formula (II), (wherein R is a residue obtained by freeing a compound having an SH group from the SH group) and salts of both; and foods, drinks, cosmetics and so on, containing compounds selected from among compounds of general formula (I), those of general formula (II) and salts of both.
摘要:
An enzyme which decomposes a sulfated fucoglucuronomannan and is useful in the field of glycotechnology; a process for producing the enzyme; a fucoidan fraction reduced in the number of the kinds of molecules and useful as a reagent in glycotechnology; a sulfated fucoglucuronomannan oligosaccharide; and processes for producing the fraction and oligosaccharide.
摘要:
Three enzymes degrading sulfated glucuronofucan; processes for producing these enzymes; activators for these enzymes; glucuronofucan sulfate and degradation products thereof; and a novel microorganism.