Results 71 to 80 of about 10,364 (172)

Identification of Amino Acid Residues Responsible for Agonist-Induced Down-Regulation of Histamine H1 Receptors

open access: yesJournal of Pharmacological Sciences, 2004
The histamine H1 receptor (H1R) level is dynamically regulated in vivo under various physiological and pathological conditions. The H1R regulation may consist of various processes, and this study focused on the process of receptor trafficking, that is ...
Shuhei Horio   +4 more
doaj   +1 more source

Expanding the Immunologic and Neuronal Landscape of IgE‐Mediated Anaphylaxis

open access: yesImmunological Reviews, Volume 337, Issue 1, January 2026.
ABSTRACT Anaphylaxis is a life‐threatening immunoglobulin E (IgE)‐mediated type I hypersensitivity reaction with rising prevalence and burden. It involves mast cell degranulation upon cross‐linking of antigen on mast cell‐bound IgE. Mechanisms of IgE‐mediated anaphylaxis remain incompletely understood, particularly the induction of systemic symptoms ...
Ruchi Biswas   +2 more
wiley   +1 more source

Histamine Regulates Molecular Clock Oscillations in Human Retinal Pigment Epithelial Cells via H1 Receptors

open access: yesFrontiers in Endocrinology, 2018
Vertebrate eyes are known to contain circadian clocks, but their regulatory mechanisms remain largely unknown. To address this, we used a cell line from human retinal pigment epithelium (hRPE-YC) with stable coexpression of reporters for molecular clock ...
Eri Morioka   +4 more
doaj   +1 more source

Asthma in Patients With Confirmed Pulmonary Sarcoidosis

open access: yesCanadian Respiratory Journal, Volume 2026, Issue 1, 2026.
Pulmonary sarcoidosis and asthma can present identical symptoms, making clinical evaluation difficult if the two diseases overlap. Diagnostic challenges often lead to either overdiagnosis of asthma in patients with confirmed sarcoidosis or withholding appropriate asthma treatment.
Agata Anna Lewandowska   +9 more
wiley   +1 more source

Pathophysiological Mechanisms and Nonpharmacological Interventions in Irritable Bowel Syndrome: Current Insights and Future Directions

open access: yesJournal of Nutrition and Metabolism, Volume 2026, Issue 1, 2026.
Irritable bowel syndrome, diagnosed using the ROME IV diagnostic criteria, is one of the most common dysfunctional disorders of the gastrointestinal system with a high global prevalence. Although symptom presentation is diverse, symptoms primarily manifest as abdominal pain, bloating, and alterations to bowel habits, negatively impacting quality of ...
Stefanie L. Y. Cheung   +2 more
wiley   +1 more source

Effect of the Fexofenadine on the expression of HRH-1 and HRH-4 receptor in Peripheral Blood Mononuclear Cell isolated from children with diagnosed allergy – in vitro study Short communication

open access: yesJournal of Pharmacy & Pharmaceutical Sciences, 2019
Purpose: Fexofenadine (FXF) is the active metabolite of terfenadine with selective peripheral H1 receptor antagonist activity. FXF is a third-generation antihistamine, non-sedating, rapid and very long acting used in symptoms associated with allergic ...
Natalia Kordulewska   +4 more
doaj   +1 more source

Primary sensory neurons expressing histamine H1-receptor mRNA.

open access: yesFolia Pharmacologica Japonica, 2001
Pharmacological studies have suggested that a subgroup of primary sensory neurons is responsive to histamine via the H1 receptor. However, which type of primary sensory neurons express H1 receptor is not known. We addressed this issue using in situ hybridization histochemistry with a cRNA probe for the guinea pig H1 receptor mRNA.
H, Kashiba, E, Senba
openaire   +3 more sources

Effects of administration of histamine and its H1, H2, and H3 receptor antagonists into the primary somatosensory cortex on inflammatory pain in rats [PDF]

open access: yesIranian Journal of Basic Medical Sciences, 2014
Objective(s): The present study investigated the effects of microinjection of histamine and histamine H1, H2, and H3 receptor antagonists, chlorpheniramine, ranitidine and thioperamide, respectively into the primary somatosensory cortex (PSC) on ...
Esmaeal Tamaddonfard   +1 more
doaj  

Activation of Microglia by Histamine and Substance P

open access: yesCellular Physiology and Biochemistry, 2014
Background: Activated microglia perform many of the immune effector functions typically associated with macrophages. However, the regulators involved in microglial activation are not well defined.
Jin Zhu, Chen Qu, Xiang Lu, Shu Zhang
doaj   +1 more source

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

open access: yesMediators 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

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