Results 21 to 30 of about 2,422 (193)

Ameliorative Effect of a Hippocampal Metabotropic Glutamate– Receptor Agonist on Histamine H1 Receptor Antagonist–Induced Memory Deficit in Rats

Journal of Pharmacological Sciences, 2010
This study was performed to investigate the ameliorative effects of metabotropic glutamate (mGlu)-receptor agonists on histamine H1 receptor antagonist–induced spatial memory deficit and the decrease in hippocampal theta activity in rats. Intraperitoneal
Takayoshi Masuoka, Azusa Mikami, Chiaki Kamei   +2 more
doaj   +1 more source

Blocking Histamine H1 Improves Learning and Mnemonic Dysfunction in Mice With Social Isolation Plus Repeated Methamphetamine Injection

Journal of Pharmacological Sciences, 2008
The aim of this study was to investigate the effects of histamine H1 and H3 antagonists on learning and mnemonic dysfunction in mice. Two H1 antagonists, pyrilamine and clozapine, and the prototypic H3 antagonist thioperamide were used to study the role ...
Feiyong Jia, Jalal Izadi Mobarakeh, Hongmei Dai, Motohisa Kato, Ajing Xu, Tomohiro Okuda, Eiko Sakurai, Nobuyuki Okamura, Kazuhiro Takahashi, Kazuhiko Yanai   +9 more
doaj   +1 more source

Histamine inhibits adrenocortical cell proliferation but does not affect steroidogenesis. [PDF]

, 2014
Histamine (HA) is a neurotransmitter synthesized in most mammalian tissues exclusively by histidine decarboxylase enzyme. Among the plethora of actions mediated by HA, the modulatory effects on steroidogenesis and proliferation in Leydig cells (LCs) have
Mondillo, Carolina, Monzón, Casandra Margarita, Pagotto, Romina María del Luján, Pereyra, Elba Nora, Pignataro, Omar Pedro   +4 more
core   +2 more sources

Prokinetic and laxative effects of the crude methanolic extract of Viola betonicifolia whole plant in rodents [PDF]

, 2013
Background: The present study was aimed to provide ethnopharmacological basis for the medicinal use of Viola betonicifolia whole plant in indigestion and constipation.
Gilani, Anwar, Khan, Haroon, Muhammad, Naveed, Rehman,, Najeeb, Saeed, Muhammad   +4 more
core   +2 more sources

The evidence for histamine H3 receptor-mediated endothelium-dependent relaxation in isolated rat aorta

Mediators of Inflammation, 1995
The presence of histamine H3 receptors was evaluated on the rat aorta endothelium. In the presence of pyrilamine (1 nM, 7 nM, 10 nM) or thioperamide (1 nM, 10 nM, 30 nM) the concentration–response curve for histamine-induced (0.1 nM − 0.01 mM ...
D. M. Djuric, I. Z. Andjelkovic
doaj   +1 more source

Uptake Study in Lysosome-Enriched Fraction: Critical Involvement of Lysosomal Trapping in Quinacrine Uptake but Not Fluorescence-Labeled Verapamil Transport at Blood-Retinal Barrier

Pharmaceutics, 2020
Lysosomal trapping at the blood–retinal barrier (BRB) was investigated through quinacrine and fluorescence-labeled verapamil (EFV) uptake. Quinacrine uptake by conditionally immortalized rat retinal capillary endothelial (TR-iBRB2) cells suggested ...
Yoshiyuki Kubo, Miki Yamada, Saki Konakawa, Shin-ichi Akanuma, Ken-ichi Hosoya   +4 more
doaj   +1 more source

Cytokine responses of intraepithelial lymphocytes are regulated by histamine H2 receptor [PDF]

, 2009
Backgrounds. Histamine participates in the immune regulation of several gastrointestinal diseases. However, the effect of histamine on intestinal intraepithelial lymphocytes (IELs), the front line of intestinal mucosal immune system, is not well ...
A Di Sabatino, A Hayday, A Mazzoni, Akira Hishida, B Lagier, C Lundqvist, CA Akdis, CA Akdis, CC Fox, D Montufar-Solis, E Bolton, E Masini, G Barbara, G Caron, G Monteleone, H Cheroutre, H Cheroutre, H Kiyono, HD Lim, HK Takahashi, IJ Elenkov, K Hoshino, K Takahashi, K Tomita, Kosuke Takagaki, L Knutson, L Lefrancois, LB Hough, LB Svendsen, LE Sander, M Jutel, M Kawaguchi, M Watanabe, Mutsuhiro Ikuma, N Osna, N Osna, P Parronchi, R Boismenu, R Leurs, RL Mosley, S Bischoff, S Kapoor, S Matsumoto, S Takamatsu, S Winterkamp, Satoshi Osawa, T Morichika, T Taguchi, T Taguchi, TA Barrett, Takahisa Furuta, Takanori Yamada, WJ Adams, WJ Adams, Y Horio, Y Sonobe, Yasuhiro Takayanagi, Yasushi Hamaya, Yoshiaki Horio   +58 more
core   +1 more source

Comparison of Pulmonary Accumulation of Pyrilamine and Pyrilamine N-oxide

Japanese Journal of Pharmacology, 1985
Our previous studies have indicated that a phenothiazine drug, chlorpromazine, and a tricyclic antidepressant, imipramine, are metabolized by the isolated perfused rat lungs via N-oxidation from whence their N-oxides are released into the circulation. This work was undertaken to compare the pulmonary accumulation of another pneumophilic tertiary amine ...
Y, Ohmiya, S, Fujisawa, K, Nakai
openaire   +3 more sources

Typical and Atypical Antipsychotic Drugs Increase Extracellular Histamine Levels in the Rat Medial Prefrontal Cortex: Contribution of Histamine H1 Receptor Blockade

Frontiers in Psychiatry, 2012
Atypical antipsychotics such as clozapine and olanzapine have been shown to enhance histamine turnover and this effect has been hypothesized to contribute to their improved therapeutic profile compared to typical antipsychotics.
Kjell A Svensson
doaj   +1 more source

Carrier-Mediated Delivery of Low-Molecular-Weight N-Containing Drugs across the Blood–Brain Barrier or the Blood–Retinal Barrier Using the Proton-Coupled Organic Cation Antiporter

Future Pharmacology, 2023
While it is true that pharmacotherapy has achieved desired health outcomes, significant unmet medical needs persist in the field of central nervous system (CNS) drugs, particularly for neurodegenerative diseases such as Alzheimer’s disease, as well as ...
Toshihiko Tashima
doaj   +1 more source