Abstract:
The present invention provides methods and compositions to prevent or treat a hematopoietic disorder such as thrombocytopenia or neutropenia by administering to a subject an effective amount of a steroid such as 3,7,16,17-tetrahydroxy-androst-5-ene, 3,16,17-trihydroxyandrostane, 3-hydroxy-16-haloandrostane-17-one or 3,17-dihydroxy-16-haloandrostane.
Abstract:
A 7-substituted oxa- or azasteroid compound represented by general formula (I), which has an excellent aromatase-inhibiting effect and is useful for preventing or treating diseases caused by estrogens, such as breast cancer, uterine cancer and prostatomegaly. This compound has an oxygen or nitrogen atom as the heteroatom at the position A of the ring D and the 7-position (substituent R1) of the skeleton is substituted by -S-R2 (wherein R2 represents hydrogen, lower alkyl which may be substituted by hydroxy, amino or lower alkoxycarbonyl, lower alkenyl, aralkyl, aryl which may be substituted by halogen, amino, di(lower alkyl)amino, lower alkoxy or lower alkyl, acyl, or lower alkoxycarbonyl), -S(O)m-R3 (wherein R3 represents lower alkyl; and m represents 1 or 2), or aralkyl.
Abstract:
A compound represented by general formula (I), which has an aromatase inhibitory activity and is useful for preventing and treating diseases caused by hyperestrogenosis, such as mastocarcinoma, metrocarcinoma and prostatomegaly. In formula (I) A represents C=O, CH2, C=CH2 or C=CH-lower alkyl; B represents O, NH or N-lower alkyl; X is nil, or represents C=O or CH2; n is 2 or 3 when X is nil, or 1 or 2 when X represents C=O or CH2; and the broken line between the 1-position and the 2-position in the steroidal skeleton means an optional presence of a double bond therebetween.
Abstract:
Provided are compounds generated by conjugation of triptolide with glucose to form glucose-triptolide conjugates, provides compounds with effective anti -proliferative activity and improved tolerability as compared to naturally occurring triptolide compounds.
Abstract:
Disclosed herein are novel sialyltransferase inhibitors, and compositions and methods for treating diseases and/or conditions associated with the activation of sialyltransferase, such as a cancer, an immune disease or an inflammatory disease.
Abstract:
This invention relates to uses of conjugates of triptolide nanoprodrugs in cancer immunotherapy, specifically compound such as D-I or D-II wherein X1 is a antioxidant, an anti-inflammatory or an anticancer agent and nanospheres thereof, and A is be selected from the group consisting of branched and unbranched alkyl, branched and unbranched alkenyl, branched and unbranched alkynyl, heteroatom-containing branched and unbranched alkyl, heteroatom-containing branched and unbranched alkenyl, heteroatom-containing branched and unbranched alkynyl, aryl, cyclic aliphatic, cyclic aromatic, heterocyclic, and aromatic heterocyclic groups.
Abstract:
This invention deals with a method of increasing the yield of photosynthetic assimilation of carbon dioxide in plants by means of application of agents that increase the carboxylase activity of the enzyme ribulose 1,5-bisphosphate carboxylase/oxygenase (RuBisCO, EC 4.1.1.39). It leads as to increase of green mass of agricultural products as decrease of carbon dioxide in atmosphere.
Abstract:
The present invention is directed to novel 7-oxa-estra-4,9-diene-3,17-dione derivatives, pharmaceutical compositions containing them and their use in the treatment of disorders and conditions modulated by at least one progesterone or glucocorticoid receptor.