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LSD: all studies

Page 62 of 282: studies 611 to 620 of 2,815, newest first. Back to the LSD overview

Research

Dissociation of multiple effects of acute LSD on exploratory behavior in rats by ritanserin and propranolol.

Psychopharmacology 1991 S M Mittman, Mark A. Geyer

Rats tested for 1 h in the Behavioral Pattern Monitor (BPM) after injection of the mixed serotonergic agonist d-lysergic acid diethylamide (LSD) exhibit a behavioral profile similar to that produced by various hallucinogenic 5HT-2 agonists. The characteristic effects of the hallucinogens include suppression of locomotor and exploratory behavior and a preferential decrease in entries into the...

The Differentiation of Lysergic Acid Diethylamide (LSD) from N-Methyl-N-Propyl and N-Butyl Amides of Lysergic Acid

Journal of Forensic Sciences May 1, 1989 Cc Clark 12 citations

Abstract The N-methyl-N-propyl, N-methyl-N-isopropy, N-butyl, N-isobutyl, N-sec-butyl and N-tert-butyl amides of lysergic acid were synthesized to determine the specificity of electron impact mass spectroscopy (EI/MS), when combined with other analytical techniques, for the identification of lysergic acid diethylamide (LSD). After separation of the C8 axial and equatorial isomers by preparative...

LSD and other related hallucinogens elicit myoclonic jumping behavior in the guinea pig.

Progress in Neuro-Psychopharmacology and Biological Psychiatry 1989 P Carvey, P Nausieda, R Weertz et al.

1. We evaluated the behavioral response of guinea pigs to hallucinogenic agents in order to characterize the response of this species to a variety of known hallucinogenic drugs. 2. The systemic injection of LSD in the guinea pig elicited a "myoclonic-like" response the frequency of which was dose-dependent. This behavior exhibited rapid tolerance which was more prominent at higher doses. 3....

Hallucinogenic drug interactions at human brain 5-HT2 receptors: implications for treating LSD-induced hallucinogenesis.

Psychopharmacology 1989 B Sadzot, J M Baraban, Richard A Glennon et al.

It has been shown that the hallucinogenic potencies of LSD, the phenylisopropylamines, such as DOB (4-bromo-2,5-dimethoxyphenylisopropylamine) and DOI (4-iodo-2,5-dimethoxyphenylisopropylamine), and the indolealkylamines, such as DMT (dimethyltryptamine) and 5-OMe-DMT (5-methoxy-dimethyltryptamine), strongly correlate with their in vitro 5-HT2 receptor binding affinities in rat cortical...

Effects of intraocular mescaline and LSD on visual-evoked responses in the rat

Pharmacology, Biochemistry, and Behavior 1989 Janis T. Eells, Douglas M. Wilkison 10 citations

The effects of mescaline and LSD on the flash-evoked cortical potential (FEP) were determined in unrestrained rats with chronically-implanted electrodes. Systemic administration of mescaline or LSD significantly attenuated the primary component of the FEP at three stimulus intensities with the greatest effect observed 60-90 minutes following drug administration. The magnitude and specificity of...

LSD and Creativity

Journal of Psychoactive Drugs 1989 Oscar Janiger, Marlene Dobkin De Rios 29 citations

The effects of lysergic acid diethylamide (LSD) on creativity were examined in a unique experiment in the late 1950's. In this project, artists were asked to draw and paint a Kachina doll both prior to and one hour after the ingestion of LSD. Evaluations of these artistic productions were analyzed by a professor of art history in order to investigate the impact of LSD on artistic creativity....

Increased serotonin2 (5-HT2) receptor binding as measured by 3H-lysergic acid diethylamide (3H-LSD) in the blood platelets of depressed patients

Life Sciences 1989 Ramesh Arora, Herbert Y. Meltzer 175 citations

3H-Lysergic acid diethylamide (3H-LSD) binding, a putative measure of 5-HT2 receptor binding, was studied in the blood platelets of 29 depressed patients and 24 normal controls. The Bmax (maximum number of 3H-LSD binding sites) in the blood platelets of depressed patients was significantly greater than that of normal volunteers. This increase in Bmax was due to an increase in female depressed...

Antagonism of 5-hydroxytryptamine2 receptor-mediated phosphatidylinositol turnover by d-lysergic acid diethylamide.

Journal of Pharmacology and Experimental Therapeutics December 1, 1988 P. Pierce, S. Peroutka

The interactions of the indolealkylamine hallucinogen d-lysergic acid diethylamide (d-LSD) and two phenalkylamine hallucinogens, 2,5-dimethoxy-4-bromoamphetamine (DOB) and 2,5-dimethoxy-4-iodoamphetamine (DOI), with 5-hydroxytryptamine2 (5-HT2) receptors were analyzed in rat cortex using both radioligand binding techniques and biochemical measurements of phosphatidylinositol (PI) turnover....

Lysergic acid diethylamide and 2,5-dimethoxy-4-methylamphetamine are partial agonists at serotonin receptors linked to phosphoinositide hydrolysis.

Journal of Pharmacology and Experimental Therapeutics September 1, 1988 Elaine Sanders‐bush, Kevin D. Burris, Karen M. Knoth 155 citations

Based on electrophysiological, radioligand binding, and behavioral studies in laboratory animals, it is generally believed that the psychotomimetic effects of the phenethylamine and indolealkylamine hallucinogens are mediated by central serotonin (5-HT) receptors, in particular the 5-HT-2 subtype. Agonist-stimulated phosphoinositide hydrolysis was utilized to determine the potency and efficacy...

Interactions between serotonergic agonists and antagonists in rats trained with LSD as a discriminative stimulus.

Pharmacology, Biochemistry, and Behavior July 1988 Jerrold C Winter, R A Rabin

Drugs purported to have selective affinities for 5-HT1A, 5-HT1B, and 5-HT2 receptors were tested in rats trained with 0.1 mg LSD versus saline. Included were 5-methoxy-dimethyltryptamine (MDMT), 2,5-dimethoxy-4-methyl-amphetamine (DOM), 8-hydroxy-2-(di-n-propylamino) tetralin (8-OH-DPAT), m-trifluoromethylphenyl-piperazine (TFMPP), and 5-methoxy-3-(1,2,3,6-tetrahydro-4-pyridinyl)-1H-indole...