18 research outputs found
Use of COX-2 inhibitors for preventing immunodeficiency
publication date: 2004-04-29; filing date: 2001-07-20The present invention provides a method of treating or preventing a disorder typified by an immunodificiency (e.g. HIV), wherein the patient is administered a COX-2 inhibitor or derivative or pharmaceutically acceptable salt thereof, preferably diisopropylfluorophasphate. L-745337, rofecoxib, NS 398, SC 58125, etodolac, meloxicam, celecoxib or nimesulide, and compositions and products containing the same or use of the same in preparing medicaments and for treatment
Stabilization of Gas Bubbles Released from Water-Soluble Carbohydrates Using Amphiphilic Compounds: Preparation of Formulations and Acoustic Monitoring of Bubble Lifetime
Structural and Pharmacological Effects of Ring-Closing Metathesis in Peptides
Applications of ring-closing alkene metathesis (RCM) in acyclic α- and ÎČ-peptides and closely related systems are reviewed, with a special emphasis on the structural and pharmacological effects of cyclization by RCM
Molecular Hydrogen TherapyâA Review on Clinical Studies and Outcomes
With its antioxidant properties, hydrogen gas (H2) has been evaluated in vitro, in animal studies and in human studies for a broad range of therapeutic indications. A simple search of âhydrogen gasâ in various medical databases resulted in more than 2000 publications related to hydrogen gas as a potential new drug substance. A parallel search in clinical trial registers also generated many hits, reflecting the diversity in ongoing clinical trials involving hydrogen therapy. This review aims to assess and discuss the current findings about hydrogen therapy in the 81 identified clinical trials and 64 scientific publications on human studies. Positive indications have been found in major disease areas including cardiovascular diseases, cancer, respiratory diseases, central nervous system disorders, infections and many more. The available administration methods, which can pose challenges due to hydrogensâ explosive hazards and low solubility, as well as possible future innovative technologies to mitigate these challenges, have been reviewed. Finally, an elaboration to discuss the findings is included with the aim of addressing the following questions: will hydrogen gas be a new drug substance in future clinical practice? If so, what might be the administration form and the clinical indications
Synthesis and Preclinical Evaluation of [18F]PF04217903, a Selective MET PET Tracer
The
tyrosine kinase MET (hepatocyte growth factor receptor)
is abnormally activated in a wide range of cancers and is often correlated with
a poor prognosis. Precision medicine with positron emission tomography (PET)
can potentially aid in the assessment of tumor biochemistry and heterogeneity,
which can prompt the selection of the most effective therapeutic regimes. The selective
MET inhibitor PF04217903 (1) formed
the basis for a bioisosteric replacement to the deoxyfluorinated analogue [18F]2, intended as a PET tracer for MET. [18F]2 could be synthesized with a âhydrous
fluoroethylationâ protocol in 6.3 ± 2.6% radiochemical yield and a molar
activity of >50 GBq/”mol. In vitro
autoradiography indicated that [18F]2 specifically binds to MET in PC3 tumor tissue, and in vivo biodistribution in mice showed
predominantly a hepatobiliary excretion along with a low retention of
radiotracer in other organs. </p
New Derivatives of 5-Aminolevulinic Acid for Photodynamic Therapy: Chemical Synthesis and Porphyrin Production in In Vitro and In Vivo Biological Systems
Design, synthesis and biological evaluation of 6âsubstituted quinolines derived from cabozantinib as câMet inhibitors
Based on the cabozantinib scaffold, novel câMet inhibitors were rationalized from the limited knowledge of structureâactivity relationships for the quinoline 6âposition. Emphasis was given to modifications capable of engaging in additional polar interactions with the câMet active site. In addition, orthoâfluorinations of the terminal benzene ring were explored. Fifteen new molecules were synthesized and evaluated in a câMet enzymatic binding assay. A wide range of substituents were tolerated in the quinoline 6âposition, while the orthoâfluorinations performed were shown to give considerable reductions in the câMet binding affinity. The antiproliferative effects of the compounds were evaluated in the NCI60 cancer cell line panel. Most notably, compounds 15b and 18b were able to inhibit cell proliferation more efficiently than cabozantinib in leukemia, CNS, and breast cancer cell lines. The in vitro data agreed well with the in silico docking results, where additional hydrogen bonding was identified in the enzymatic pocket for the paraâamino substituted 15b and 18b
Recent Development of Non-Peptide GnRH Antagonists
The decapeptide gonadotropin-releasing hormone, also referred to as luteinizing hormone-releasing hormone with the sequence (pGlu-His-Trp-Ser-Tyr-Gly-Leu-Arg-Pro-Gly-NH2) plays an important role in regulating the reproductive system. It stimulates differential release of the gonadotropins FSH and LH from pituitary tissue. To date, treatment of hormone-dependent diseases targeting the GnRH receptor, including peptide GnRH agonist and antagonists are now available on the market. The inherited issues associate with peptide agonists and antagonists have however, led to significant interest in developing orally active, small molecule, non-peptide antagonists. In this review, we will summarize all developed small molecule GnRH antagonists along with the most recent clinical data and therapeutic applications