Abstract: Chemical entities that are bufalin derivatives, pharmaceutical compositions and methods of treatment of cancer are described.

Abstract: Chemical entities that are bufalin derivatives, pharmaceutical compositions and methods of treatment of cancer are described.

Abstract: A compound of general formula (I), wherein R1-R17 and the ------ line take various meanings for use in the treatment of cancer.

Abstract: A series cardenolide derivatives including structure of formula I from the root of Reevesia formosana have provided. In formula (1) and (2), where R3, R5, R10 and R16 are as defined in the specification. The derivatives compounds showed potent cytotoxicity against MCF-7, NCI-H460, and HepG2 cancer cell lines.

Abstract: Chemical entities that are novel compounds, pharmaceutical compositions and methods of treatment of cancer are described.

Abstract: Methods and pharmaceutical compositions utilizing compounds of Formula II: for inhibiting osteoclastogenesis and the activity of osteoclasts in patients.

Abstract: The invention relates to methods for the quantitative and qualitative detection of an analyte in an assay as well as appropriate reagents therefor, especially a carrier molecule to which one or several analyte-specific binding partners are bound and which is provided with additional binding points for a specific binding partner X or Y that is associated with a component of a signal-forming system. Also disclosed is the use of such a conjugate particularly in homogeneous binding tests.

Abstract: The present invention is directed to compounds of the formula (I) (wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R27, R28, R29, R30, R31, X, m, n and the dashed line are defined herein) which are useful as modulators of chemokine receptor activity.

Abstract: The present invention provides a method for treating a demyelinating disease in a subject which includes administering to the subject a therapeutically effective amount of a high affinity neuromodulatory Na,K-ATPase so as to treat the demyelinating disease.

Abstract: The invention is directed to a novel class of steroids which exhibit potent antiprogestational activity.

Abstract: The present invention provides digoxigenin derivatives of the formula: ##STR1## wherein n is a whole number of from 1 to 4 and Z is a carboxyl group or a functional derivative derived therefrom. The present invention also provides digoxigenin conjugates of the general formula: ##STR2## wherein the carrier is an immunogenic carrier material, a nucleic acid or a labelled immunocomponent of a labelled digoxigenin immunoconjugate for use in an immunoassay, m is a number from 1 to the number of coupling positions available on the carrier and Y is the group formed by the reaction of the carboxyl function Z of the digoxigenin derivative of general formula (I) with the reacting position of the carrier material. Also described are uses of these conjugates as nucleic acid probes, immunogens, and in immunoassay.

Abstract: A method for performing a diagnostic immunoassay by solid phase separation for digoxin. To a reaction mixture of a test sample and labeled anti-digoxin antibody, which forms a complex of any digoxin present in the test sample, is added a solid phase material having an immobilized ouabain triacetate derivative compound capable of binding any excess labeled antibody. The solid phase material is chosen to rapidly settle whereby a solid and liquid phase is formed. The liquid phase can then be extracted to measure the amount of digoxin-labeled antibody present therein. Ouabain triacetate derivative compounds possess sufficient affinity for anti-digoxin antibodies, and are therefore useful in a solid phase separation based digoxin immunoassay for settling out such antibodies without contributing to undesired background interference.

Abstract: This invention relates to antiviral organic steroid compositions and derivatives thereof; a process of producing the antiviral compositions; and a method for inhibiting viruses utilizing the compositions. More particularly, the compositions are derived from fireflies of the genus, Photinus.

Abstract: A method for performing a diagnostic immunoassay by solid phase separation for digoxin. To a reaction mixture of a test sample and labeled anti-digoxin antibody, which forms a complex of any digoxin present in the test sample, is added a solid phase material having an immobilized ouabain triacetate derivative compound capable of binding any excess labeled antibody. The solid phase material is chosen to rapidly settle whereby a solid and liquid phase is formed. The liquid phase can then be extracted to measure the amount of digoxin-labeled antibody present therein. Ouabain triacetate derivative compounds possess sufficient affinity for anti-digoxin antibodies, and are therefore useful in a solid phase separation based digoxin immunoassay for settling out such antibodies without contributing to undesired background interference.