Results 51 to 60 of about 23,298 (234)

First description of a histamine receptor of class 2 (HRH2) in a protochordate: expression during blastogenesis and role in regulation of ciliary beat frequency [PDF]

open access: yes, 2016
Histaminergic receptors belong to the family of seven-transmembrane \u3b1-helix domain receptors classified in mammals into four distinct classes. Despite being widely studied in vertebrates, few data are available on the invertebrate receptors, with ...
Cima, Francesca
core  

Histamine can be Formed and Degraded in the Human and Mouse Heart [PDF]

open access: yes, 2023
Histamine is metabolized by several enzymes in vitro and in vivo. The relevance of this metabolism in the mammalian heart in vivo is unclear. However, histamine can exert positive inotropic effects (PIE) and positive chronotropic effects (PCE) in humans ...
Buchwalow, Igor B.   +12 more
core   +1 more source

Central Effect of Exogenous Histamine on Pain Induced by Sub-Plantar Injection of Formalin in Rabbits [PDF]

open access: yesVeterinary Research Forum, 2010
In the present study, the effects of intracerebroventricular (ICV) administration of normal saline (control), histamine, mepyramine (a histamine H1-receptor antagonist) and ranitidine (a histamine H2-receptor antagonist) were investigated on the formalin-
Esmaeal Tamaddonfard
doaj  

Increased accuracy of ligand sensing by receptor diffusion on cell surface [PDF]

open access: yesPhysical Review E 82, 041902 (2010), 2010
The physical limit with which a cell senses external ligand concentration corresponds to the perfect absorber, where all ligand particles are absorbed and overcounting of same ligand particles does not occur. Here we analyze how the lateral diffusion of receptors on the cell membrane affects the accuracy of sensing ligand concentration.
arxiv   +1 more source

Proteomic Profiling Informs Mechanisms of Esophageal Adenocarcinoma Inhibition by Cranberry Proanthocyanidins

open access: yesMolecular Nutrition &Food Research, EarlyView.
In this study we utilized proteomic profiling to investigate mechanisms linked to the cancer‐inhibitory effect of cranberry proanthocyanidins (CPACs) on reflux‐induced esophageal adenocarcinoma in a rat model. The results indicate that CPAC inhibits cancer through targeting multiple hallmarks of cancer known to be dysregulated in progression to ...
Yun Zhang   +7 more
wiley   +1 more source

T lymphocytes as a target of histamine action [PDF]

open access: yes, 2012
Histamine is one of the most important biogenic amines in medicine and biology but its role in allergy, autoimmune and neoplastic diseases has not yet been fully defined.
Ciebiada, Maciej   +3 more
core   +2 more sources

Mast cells are critical for protection against peptic ulcers induced by the NSAID piroxicam. [PDF]

open access: yesPLoS ONE, 2011
Many commonly used non-steroidal anti-inflammatory drugs (NSAIDs) also cause gastrointestinal toxicity, including the development of life-threatening peptic ulcers. We report that mast cell-deficient mice have an extremely high incidence of severe peptic
Daniel D Hampton, Laura P Hale
doaj   +1 more source

Pathogenesis of Melasma Explained

open access: yesInternational Journal of Dermatology, EarlyView.
Pathophysiology of melasma. ABSTRACT This review provides an in‐depth analysis of the pathophysiology of melasma and highlights recent studies that elucidate its underlying mechanisms. Given the prevalence of melasma, a thorough understanding of its pathogenesis is critical for the development of effective treatment strategies.
Lara Ali, Firas Al Niaimi
wiley   +1 more source

The Effects of Histamine H3 Receptors on Contractile Responses on Rat Gastric Fundus [PDF]

open access: yes, 2006
The aim of this study is to determine the effects of histamine receptors on the gastrointestinal system smooth muscle contractions and the role of histamine H3 receptors on these effects.
Aşkın Hekimoğlu, Ramazan Çiçek
core  

Role of the Histaminergic System in the Inhibitory Effect of Melatonin on Broiler Chicken Feed Intake [PDF]

open access: yesPoultry Science Journal
Prior investigations have postulated that melatonin, a prominent hormone produced by the pineal gland, can reduce animal food consumption. This study was designed to evaluate the involvement of central histamine H1 and H2 receptors in regulating ...
Majid Taati   +2 more
doaj   +1 more source

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