Cashman J.R.,Human BioMolecular Research Institute |
Azar M.R.,Behavioral Pharma Inc.
Journal of Pharmacology and Experimental Therapeutics | Year: 2014
A substituted aryl amide derivative of 6-naltrexamine - 17-cyclopropylmethyl- 3,14β-dihydroxy-4,5α-epoxy-6β-[(4′- trimethylfluoro) benzamido]morphinan-hydrochloride - (compound 5), previously shown to be a potent κ-opioid receptor antagonist, was used to characterize the physicochemical properties and efficacy to decrease alcohol self-administration in alcohol-preferring rats (P-rats) and binge-like P-rats. Previous studies showed that compounds closely related to compound 5 possessed favorable properties regarding penetration of the blood-brain barrier. Pharmacokinetic studies showed that compound 5 had acceptable bioavailability. In contrast to other κ-receptor antagonists, in particular norbinaltorphimine, compound 5 showed favorable drug-like properties. Based on these findings, further studies were done. Safety studies showed that compound 5 was not hepatotoxic at doses 200-fold greater than an efficacious dose. The effects of compound 5 or naltrexone on the hepatotoxicity of thiobenzamide were investigated. In contrast to naltrexone, which exacerbated thiobenzamide- mediated hepatotoxicity, compound 5 was observed to be hepatoprotective. Based on the physicochemical properties of compound 5, the compound was examined in rat animal models of alcohol self-administration. The inhibition of ethanol self-administration by compound 5 in alcohol-dependent and alcohol-nondependent P-rats trained to self-administer a 10% (w/v) ethanol solution, using operant techniques, showed very potent efficacy (i.e., estimated ED50 values of 4-5 μg/kg). In a binge-like P-rat animal model, inhibition of alcohol self-administration by compound 5 had an estimated ED50 value of 8 μg/kg. The results suggest that compound 5 is a potent drug-like κ-opioid receptor antagonist of utility in alcohol cessation medications development. Copyright © 2014 by The American Society for Pharmacology and Experimental Therapeutics. Source
Human Biomolecular Research Institute | Date: 2010-08-02
Disclosed are nicotine-related compounds that selectively inhibit cytochrome P-450 2A6 (CYP2A6), selectively inhibit cytochrome P-450 2A13 (CYP2A13), and/or selectively modulate a nicotinic acetylcholine receptor (nAChR). Also disclosed are pharmaceutical compositions comprising a compound of the invention, as well as methods of using the pharmaceutical compositions for treating or preventing a disease or disorder associated with nicotine-ingestion, or a disease or disorder amenable to treatment by selective modulation of nAChRs.
Human Biomolecular Research Institute | Date: 2014-03-17
Compositions of small molecules, matrices, and isolated cells including methods of preparation, and methods for differentiation, transdifferentiation, and proliferation of animal cells into the osteoblast blast cell lineage were described. Examples of osteogenic materials that were administered to cells or co-cultured with cells are represented by compounds of Formula II, IV, and VI independently or preferably in combination with a matrix to afford bone cells. Small molecule-stimulated cells were also combined with a matrix, placed with a cellular adhesive or material carrier and implanted to a site in an animal for bone repair. Matrix pretreated with compounds of Formula II, IV, and VI were also used to cause cells to migrate to the matrix that is of use for therapeutic purposes.
Human Biomolecular Research Institute | Date: 2011-08-05
Methods and small molecule compounds for smoking and CNS disease harm reduction are provided. One example of a class of compounds that may be used is represented by the compound having the structure IA or IB in the form of free base or a pharmaceutically acceptable salt, hydrate or solvate thereof:
Human Biomolecular Research Institute and Sanford Burnham Institute for Medical Research | Date: 2011-05-13
Methods and small molecule compounds for stem cell differentiation are provided. One example of a class of compounds that may be used is represented by the compound of Formula I: or a pharmaceutically acceptable salt or solvate thereof, wherein R