Results 31 to 40 of about 92,808 (201)

Histamine stimulates the proliferation of small and large cholangiocytes by activation of both IP3/Ca2+ and cAMP-dependent signaling mechanisms [PDF]

open access: yes, 2012
Although large cholangiocytes exert their functions by activation of cyclic adenosine 3',5'-monophosphate (cAMP), Ca(2+)-dependent signaling regulates the function of small cholangiocytes. Histamine interacts with four receptors, H1-H4HRs.
Fanyin Meng   +15 more
core   +1 more source

The Affinity of Histamine for Gq Protein-Coupled Histamine H1-Receptors Is Predominantly Regulated by Their Internalization in Human Astrocytoma Cells

open access: yesJournal of Pharmacological Sciences, 2012
We examined the regulatory mechanisms of the affinity of Gq protein-coupled histamine H1-receptors for histamine after histamine pretreatment in intact human U373 MG astrocytoma cells.
Shigeru Hishinuma   +3 more
doaj   +1 more source

Short photoperiod-induced decrease of histamine H3 receptors facilitates activation of hypothalamic neurons in the Siberian Hamster [PDF]

open access: yes, 2009
Nonhibernating seasonal mammals have adapted to temporal changes in food availability through behavioral and physiological mechanisms to store food and energy during times of predictable plenty and conserve energy during predicted shortage.
Bamshad   +46 more
core   +1 more source

Influence of mirtazapine on salivary cortisol in depressed patients [PDF]

open access: yes, 2003
Unlike other antidepressants, mirtazapine does not inhibit the reuptake of norepinephrine or serotonin but acts as an antagonist at presynaptic alpha(2)-receptors, at postsynaptic 5-HT2 and 5-HT3 receptors, and at histaminergic H1 receptors. Furthermore,
Baghai, Thomas C.   +3 more
core   +1 more source

Ligand-guided homology modeling drives identification of novel histamine H3 receptor ligands [PDF]

open access: yes, 2019
In this study, we report a ligand-guided homology modeling approach allowing the analysis of relevant binding site residue conformations and the identification of two novel histamine H3 receptor ligands with binding affinity in the nanomolar range.
Hagenow, Stefanie   +3 more
core   +2 more sources

HISTAMINE RECEPTORS

open access: yesThe Professional Medical Journal, 2010
Objective: This research work deals with the mechanism of action involved in determining the therapeutic potential of histamine and its blockers in gastrointestinal motility. Study Design: Rabbits of equal weights were used in this study. They were brought from the animal house of BMSI, sacrificed in the Pharmacology Research laboratory.
AFTAB TURABI   +3 more
openaire   +2 more sources

Histamine and migraine revisited: mechanisms and possible drug targets

open access: yesThe Journal of Headache and Pain, 2019
Objective To review the existing literature on histamine and migraine with a focus on the molecule, its receptors, its use in inducing migraine, and antihistamines in the treatment of migraine. Background Histamine has been known to cause a vascular type
Jacob Worm   +2 more
doaj   +1 more source

Efficacy of the Multi-Target Compound E153 in Relieving Pain and Pruritus of Different Origins

open access: yesPharmaceuticals, 2023
Itch and pain are closely related but distinct sensations that share largely overlapping mediators and receptors. We hypothesized that the novel, multi-target compound E153 has the potential to attenuate pain and pruritus of different origins.
Szczepan Mogilski   +7 more
doaj   +1 more source

Effects of methimepip and JNJ-5207852 in Wistar rats exposed to an open-field with and without object and in Balb/c mice exposed to a radial-arm maze [PDF]

open access: yes, 2012
The role of the histamine H3 receptor (H3R) in anxiety is controversial, due to limitations in drug selectivity and limited validity of behavioral tests used in previous studies. In the present report, we describe two experiments.
Abuhamdah, Rushdie M.   +4 more
core   +1 more source

Histamine and its receptors [PDF]

open access: yesBritish Journal of Pharmacology, 2006
This article reviews the development of our knowledge of the actions of histamine which have taken place during the course of the 20th century. Histamine has been shown to have a key physiological role in the control of gastric acid secretion and a pathophysiological role in a range of allergic disorders.
Mike E, Parsons, C Robin, Ganellin
openaire   +2 more sources

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