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The effects of (-)-delta 8-tetrahydrocannabinol (delta 8-THC) and its biologically inactive O-methyl ether analog on model phospholipid membranes were studied using a combination of differential scanning calorimetry (DSC), small angle X-ray diffraction and solid state 2H-NMR. The focus of this work
A novel quantitative structure-activity relationship (QSAR) for the side-chain region of Delta(8)-tetrahydrocannabinol (Delta(8)-THC) analogues is reported. A series of 36 side-chain-substituted Delta(8)-THCs with a wide range of pharmacological potency and CB1 receptor affinity was investigated
OBJECTIVE
To investigate the effects of the psychotropic compounds Delta(9)-tetrahydrocannabinol (Delta(9)-THC) and Delta(8)-tetrahydrocannabinol (Delta(8)-THC) on sperm mitochondrial O(2) consumption (respiration).
METHODS
State University of New York Upstate Medical University, Syracuse, New
Neutron diffraction measurements have been utilized to study the effects of delta 9-tetrahydrocannabinol (delta 9-THC) and delta 8-tetrahydrocannabinol (delta 8-THC) incorporated in phospholipid membranes of dipalmitoylphosphatidylcholine (DPPC). Low-angle diffraction indicated that these
The metabolism of delta-9-tetrahydrocannabinol (delta-9-THC), delta-8-THC, delta-11-THC, cannabidiol (CBD), cannabinol (CBN), cannabichromene (CBC), cannabigerol (CBG) and the equatorial-isomer of hexahydrocannabinol (HHC) was studied in microsomal preparations obtained from rats, mice, guinea pigs,
A novel [125I]-labelled photoaffinity ligand designed to detect cannabinoid binding sites has been used in mouse brain preparations and in cultured S49 mouse lymphoma cells. The ligand, 2-iodo-5'-azido-delta 8-THC, shows a high affinity for sites in both brain (Kd = 5.60 pM) and whole cell (Kd =
The separation of the mood-altering effects of cannabinoids from their therapeutic effects has been long sought. Results reported here for a series of C-9 analogs of the cyclic ether O,2-propano-delta 8-tetrahydrocannabinol (O,2-propano-delta 8-THC) point to the C-1 position in classical
60 urine samples which were sent within one month in order to be investigated on narcotic drugs were examined by means of 3 immunological methods EMIT, TDx and EIA (Roche) to prove cannabinoids and GC/MS procedure to investigate 11-Nor-delta-9-THC-9-carboxylic acid with
A series of C3 cyclic side-chain analogues of classical cannabinoids were synthesized to probe the ligand binding pocket of the CB1 and CB2 receptors. The analogues were evaluated for CB1 and CB2 receptor binding affinities relative to delta(8)-THC. The C3 side-chain geometries of the analogues were
We have recently shown that the selective cannabinoid CB(1) receptor antagonist SR 141716A produces robust frequencies of head-twitch response (HTR) and ear-scratch response (ESR) in drug-naive mice. Both behaviors were potently blocked by the selective 5-HT(2A/C) receptor antagonist SR 46349B.
The bronchodilating activity of oral cannabinoids was evaluated in three double-blind experiments that involved the study of dose-response and interactive relationships and the potential development of tolerance. Data indicated that delta 8-tetrahydrocannabinol (delta 8-THC), cannabinol (CBN), and
A procedure for the detection of cannabinoids in blood (1 mL) using enzyme multiplied immunoassay technique (EMIT) is described. The sensitivity of the method, determined using 11-nor-delta 8-THC-9-carboxylic acid is better than 20 ng/mL. Estimates of precision and a study of storage effects show
The compounds reported in this study are Delta(8)-THC analogues in which the C3 five-carbon linear side chain of Delta(8)-THC was replaced with aryl and 1',1'-cycloalkyl substituents. Of the compounds described here analogues 2d (CB(1), K(i)=11.7 nM. CB(2), K(i)=9.39 nM) and 2f (CB(1), K(i)=8.26 nM.