11602results about "Steroids" patented technology

Sequence-specific oligonucleotides are provided having substantially pure chiral Sp phosphorothioate, chiral Rp phosphorothioate, chiral Sp alkylphosphonate, chiral Rp alkylphosphonate, chiral Sp phosphoamidate, chiral Rp phosphoamidate, chiral Sp phosphotriester, and chiral Rp phosphotriester linkages. The novel oligonucleotides are prepared via a stereospecific SN2 nucleophilic attack of a phosphodiester, phosphorothioate, phosphoramidate, phosphotriester or alkylphosphonate anion on the 3' position of a xylonucleotide. The reaction proceeds via inversion at the 3' position of the xylo reactant species, resulting in the incorporation of phosphodiester, phosphorothioate, phosphoramidate, phosphotriester or alkylphosphonate linked ribofuranosyl sugar moieties into the oligonucleotide.

Oligonucleotides and other macromolecules are provided which have increased nuclease resistance, substituent groups for increasing binding affinity to complementary strand, and subsequences of 2′-deoxy-erythro-pentofuranosyl nucleotides that activate RNase H. Such oligonucleotides and macromolecules are useful for diagnostics and other research purposes, for modulating the expression of a protein in organisms, and for the diagnosis, detection and treatment of other conditions susceptible to oligonucleotide therapeutics.

Disclosed herein are compositions and methods of modulating the expression of gene or the production of a protein by transfecting target cells with nucleic acids. The compositions disclosed herein demonstrate a high transfection efficacy and are capable of ameliorating diseases associated with protein or enzyme deficiencies.

The present invention relates to novel pyrrolo[2,1-c][1,4]benzodiazepines compounds of general formula V as shown below, which are useful as potential antitumour agents and a process of preparing these compounds; particularly the present invention provides a process for the preparation of 7-methoxy-8-{n-[7-methoxy-(11aS)-1,2,3,10,11,11a-hexahydro-5H-pyrrolo[2,1-c][1,4]ben-zodiazepine-5-one-8-yloxy]alkyloxy}-(11aS)-1,2,3,11a-tetrahydro-5H-pyrrolo[2,1-c][1,4]benzodiazepin-5-one, with varying aliphatic chain length and its 2-hydroxy derivatives.

Compositions and methods for modulating the activity of RNA and DNA are disclosed. In accordance with preferred embodiments, antisense compositions are prepared comprising targeting and reactive portions. Reactive portions which act, alternatively, through phosphorodiester bond cleavage, through backbone sugar bond cleavage or through base modification are preferrably employed. Groups which improve the pharmacodynamic and pharmacokinetic properties of the oligonucleotides are also useful in accordance with certain embodiments of this invention. Delivery of the reactive or non-reactive functionalities into the minor groove formed by the hybridization of the composition with the target RNA is also preferrably accomplished. Therapeutics, diagnostics and research methods and also disclosed. Synthetic nucleosides and nucleoside fragments are also provided useful for elaboration of oligonucleotides and oligonucleotide analogs for such purposes.

A dry powder composition comprising one or more potent pharmaceutically active substances and a carrier substance, all of which are in finely divided form, wherein the formulation has a poured bulk density of from 0.28 to 0.38 g / ml is useful in the treatment of respiratory disorders.

The present invention provides novel, stable lipid particles comprising one or more active agents or therapeutic agents, methods of making the lipid particles, and methods of delivering and / or administering the lipid particles. More particularly, the present invention provides stable nucleic acid-lipid particles (SNALP) comprising a nucleic acid (such as one or more interfering RNA), methods of making the SNALP, and methods of delivering and / or administering the SNALP.

The present invention overcomes limitations of the prior art by providing new compounds and methods for the treatment of conditions, such as neurodegenerative diseases (e.g., multiple sclerosis), psychiatric disorders (e.g., psychosis, bipolar disorder, depression, neuropathic pain), conditions involving CNS-mediated chronic pain, spinal cord injuries, and other diseases or injuries.

A method and composition for reducing adenosine levels comprises administering a dehydroepiandrosterone, and optionally a ubiquinone.

This invention features permeability enhancer molecules, and methods, to increase membrane permeability of various molecules, such as nucleic acids, polynucleotides, oligonucleotides, enzymatic nucleic acid molecules, antisense nucleic acid molecules, 2-5A antisense chimeras, triplex forming oligonucleotides, decoy RNAs, dsRNAs, siRNAs, aptamers, or antisense nucleic acids containing nucleic acid cleaving chemical groups, peptides, polypeptides, proteins, carbohydrates, steroids, metals and small molecules, thereby facilitating cellular uptake of such molecules.

The invention provides compositions comprising, 16alpha-bromo-3beta-hydroxy-5alpha-androstan-17-one hemihydrate and one or more excipients, typically wherein the composition comprises less than about 3% water. The compositions are useful to make improved pharmaceutical formulations. The invention also provides methods of intermittent dosing of steroid compounds such as analogs of 16alpha-bromo-3beta-hydroxy-5alpha-androstan-17-one and compositions useful in such dosing regimens. The invention further provides compositions and methods to inhibit pathogen (viral) replication, ameliorate symptoms associated with immune dysregulation and to modulate immune responses in a subject using certain steroids and steroid analogs. The invention also provides methods to make and use these immunomodulatory compositions and formulations.

In its many embodiments, the present invention provides a novel class of pyrazolo[1,5-a]pyrimidine compounds as inhibitors of protein and / or checkpoint kinases, methods of preparing such compounds, pharmaceutical compositions including one or more such compounds, methods of preparing pharmaceutical formulations including one or more such compounds, and methods of treatment, prevention, inhibition, or amelioration of one or more diseases associated with the protein or checkpoint kinases using such compounds or pharmaceutical compositions. The invention also relates to the inhibition of hepatitis C virus (HCV) replication. In particular, embodiments of the invention provide compounds and methods for inhibiting HCV RNA-dependent RNA polymerase enzymatic activity. The invention also provides compositions and methods for the prophylaxis and treatment of HCV infection.

A method for labeling acyl carrier protein (ACP) fusion proteins with a wide variety of different labels is disclosed. The method relies on the transfer of a label from a coenzyme A type substrate to an ACP fusion protein using a holo-acyl carrier protein synthase (ACPS) or a homologue thereof. The method allows detecting and manipulating the fusion protein, both in vitro and in vivo, by attaching molecules to the fusion proteins that introduce a new physical or chemical property to the fusion protein. Examples of such labels are, among others, spectroscopic probes or reporter molecules, affinity tags, molecules generating reactive radicals, cross-linkers, ligands mediating protein-protein interactions or molecules suitable for the immobilization of the fusion protein.

The present invention is directed to a compound, method and composition of treating or preventing viral infections, in particular, human immunodeficiency virus (HIV) and hepatitis B virus (HBV) infections, in human patients or other animal hosts, comprising the administration of N4-acylcytosine-1,3-dioxolane and pharmaceutically acceptable salts, prodrugs, and other derivatives thereof.

The invention relates to conjugates of macromolecular carriers and drugs comprising linkers that release the drug or a prodrug through rate-controlled beta-elimination, and methods of making and using the conjugates.

The invention relates to compounds, pharmaceutical compositions and methods useful for treating viral infection.

The present invention refers to steroid derivatives for use as medicaments. More specifically, the invention also relates to the use of a steroid derivative of 5-androstene-, 5-pregnenolone or corresponding saturated derivatives (androstane- or pregnane-) in the manufacture of a medicament for the treatment of a benign and / or malignant tumour, which medicament is capable of interrupting disturbances in Wnt-signaling, such as cell-cycle arrest in G1-phase, and / or providing an angiostatic effect. Examples of such steroid derivatives are -5-androstene-17-ol, androstane-17-ol-pregnane-17-ol or pregnane-17-ol derivatives. In a further aspect, the invention relates to a method of producing a medicament for the treatment of a benign and / or malignant tumour and / or an inflammatory condition comprising the steps of contacting 5-androstane-3β,17-diol or androstane-3β-diol, an enzyme and a sulfotransferase to provide 5-androstene-17-ol-3β-sulfate or corresponding andros tane derivative (17-AEDS or 17-AADS); and mixing the 17-AEDS or 17-AADS so produced with a suitable carrier; whereby a medicament which is capable of acting as a ligand to peroxisome proliferators-activated receptor-(PPAR) is produced.

Novel methods of medical treatment and / or inhibition of development of diseases are disclosed for diseases that are sensitive to androgenic or estrogenic activity. The treatments utilize inhibitors of type 5 and / or type 3 17beta-hydroxysteroid dehydrogenase. Novel inhibitors of type 5 17beta-hydroxysteroid dehydrogenase are also disclosed, as are novel inhibitors of type 3 17beta-hydroxysteroid dehydrogenase.

A drug delivery system for oral administration of hydrophobic drugs with enhanced and extended absorption and improved pharmacokinetics is provided. In one embodiment, formulations comprising testosterone and testosterone esters, e.g., testosterone palmitate, are disclosed. Methods of treating a hormone deficiency or effecting male contraception with the inventive formulations are also provided.

Salts of 3-O-(3′,3′-dimethylsuccinyl)Betulinic acid (DSB) are disclosed. Particularly, the preparation, pharmaceutical evaluation, and in vivo bioavailability evaluation of N-methyl-D-glucamine and alkali metal salt forms of DSB are disclosed. Pharmaceutical compositions including these salt forms are used in methods of treating HIV and related diseases. Methods of making the salts of DSB and the pharmaceutical compositions are also provided.

PCT No. PCT / SE97 / 00287 Sec. 371 Date Sep. 17, 1998 Sec. 102(e) Date Sep. 17, 1998 PCT Filed Feb. 20, 1997 PCT Pub. No. WO97 / 30726 PCT Pub. Date Aug. 28, 1997Lipid-containing particles such as iscoms, iscom-matrix or vesicles such as micelles or liposomes that comprise one or more hydrophobic receptor molecules for targeting and antigenic substances, which receptor molecules have been integrated in the particle and are chosen from lipid-containing receptors or receptors that are hydrophobic, which receptor molecules bind to the antigenic substances.