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309 results about "Reverse-transcriptase inhibitor" patented technology

Reverse-transcriptase inhibitors (RTIs) are a class of antiretroviral drugs used to treat HIV infection or AIDS, and in some cases hepatitis B. RTIs inhibit activity of reverse transcriptase, a viral DNA polymerase that is required for replication of HIV and other retroviruses.

Methods, compositions, formulations, and uses of cellulose and acrylic-based polymers

Compositions, formulations, and methods for the treatment or prevention, or decreasing the frequency of transmission of a virus (such as human immunodeficiency virus type 1 (HIV-1), Herpes Simplex virus type 1 (HSV1), or Herpes Simplex Virus Type 2 (HSV2), or other virus), or a bacterial infection (such as Trichomonas vaginalis, Neisseris gonorrhoeae Haemopholus ducreyl, or Chlamydia trachomatis, or other bacterial species), or a fungal infection, using an anionic cellulose- or acrylic-based oligomer, polymer, or copolymer. The present invention also includes administering a therapeutically effective amount of said oligomer, polymer, or copolymer, or a pharmaceutically acceptable salt thereof, or with a pharmaceutically acceptable carrier or diluent, thereof. The invention relies on the unique biochemical substitution of the cellulose or acrylic backbone such that the resultant molecule can remain molecularly dispersed in solution (or gel or other formulation) and mostly dissociated over a wide range of physiological microenvironments, such as the low pH found within the vaginal lumen, preferably from a pH of 14 to below 3.5. These specific substitutions also impart on the resultant molecule potent antiviral, anti-bacterial, and anti-fungal properties. In addition, these compositions can be used as general disinfectants for human use such as in contact lens solutions, mouthwashes, toothpastes, suppositories, or as more generalized disinfectants found in soaps, household cleaning products, paints, water treatments modalities, or can be incorporated into cosmetic, and can be used as vehicles for drug delivery, an adjuvant in a therapeutic formulation, or as a preservative. These compounds can be delivered in a liquid or solid dosage form and can be incorporated into barrier devices such as condoms, diaphragms, or cervical caps, to help prevent the transmission of STDs. The compounds of this invention can also be used in combination therapies with other classes of antiviral, antibacterial, or antifungal agent having similar or differing mechanisms of action including, but not limited to, anionic or cationic polymers, copolymers, or oligomers, surfactants, protease inhibitors, DNA or RNA polymerase inhibitors (including reverse transcriptase inhibitors), fusion inhibitors, cell wall biosynthesis inhibitors, integrase inhibitors, or virus or bacterial attachment inhibitors.
Owner:NOVAFLUX INC +1

Hydrophobic Modified Pres-Derived Peptides of Hepatitis B Virus (HBV) and Their Use as Vehicles for the Specific Delivery of Compounds to the Liver

The present invention relates to hydrophobic modified preS-derived peptides of hepatitis B virus (HBV) which are versatile vehicles for the specific delivery of compounds to the liver, preferably to hepatocytes, in vitro as well as in vivo. Any kind of compound, but in particular drugs, such as interferons, viral reverse transcriptase inhibitors or core assembly inhibitors, and/or labels can be specifically targeted to the liver and so be enriched in the liver. This liver targeting can further be used for the targeted diagnosis, prevention and/or treatment of liver diseases or disorders, such as hepatitis, malaria, hepatocellular carcinoma (HCC), as well as for the prevention of HAV, HBV, HCV and/or HDV infection. The present invention relates to pharmaceutical compositions comprising said hydrophobic modified preS-derived peptide(s) and the compound(s) to be specifically delivered to the liver. The present invention furthermore relates to a method for the combined treatment of a liver disease and the prevention of HAV, HBV, HCV and/or HDV infection. The present invention relates also to the use of the preS-derived peptides in gene therapy and the delivery of immunogenic epitopes for hepatocyte-mediated antigen presentation to activate liver-directed immunological responses.
Owner:UNIVERSITY OF HEIDELBERG
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