Results 41 to 50 of about 53,829 (294)

Slowing Down Water: Enhanced and Cation‐responsive MRI Contrast

Angewandte Chemie, EarlyView.
The controlled modification of mesoporous silica nanoparticle side walls with kosmotropic motifs supports an ability to reduce water diffusive mobility and dramatically increase MRI contrast to levels unprecedented for highly kinetically stable Gd‐DOTA configurations (both q = 1 and q = 0).
Connor M. Ellis, James P. Smith, Matthew F. Allen, Ferenc E. Mózes, Stephen Faulkner, Jason J. Davis   +5 more
wiley   +2 more sources

Histamine enhances ATP-induced itching and responsiveness to ATP in keratinocytes

Journal of Pharmacological Sciences, 2022
Mechanical stimulation of cultured keratinocytes and a living epidermis increases intracellular calcium ion concentrations ([Ca2+]i) in stimulated cells. This action propagates a Ca2+ wave to neighboring keratinocytes via ATP/P2Y2 receptors.
Yoshihiro Inami, Miki Fukushima, Toshiaki Kume, Daisuke Uta   +3 more
doaj   +1 more source

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

Molecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

Catalytic Enantioselective Intramolecular Aza‐Michael Addition to α,β‐Unsaturated Esters

Angewandte Chemie, EarlyView.
A general method for accessing enantioenriched saturated N‐heterocycles via a catalytic enantioselective intramolecular aza‐Michael reaction to α,β‐unsaturated esters is described. A superbasic bifunctional iminophosphorane (BIMP) catalyst was key to enabling reactivity of the high pKa sulfonamide pronucleophile, whilst delivering good to excellent ...
Evan G. W. Rutter, Cameron J. MacRae, Haoran Xiong, Daniel Rozsar, Katherine F. P. Clarke, Darren J. Dixon   +5 more
wiley   +2 more sources

On the Mechanisms Underlying Histamine Induction of Gastric Mucosal Lesions in Rats With Partial Gastric Vascular Occlusion

Journal of Pharmacological Sciences, 2003
Although it is well known that histamine induces gastric mucosal lesions in laboratory animals, the fundamental mechanisms remain unclear. In order to further analyze the vascular mechanisms underlying histamine-induced lesions, a new model was developed
Kikuko Amagase, Susumu Okabe
doaj   +1 more source

Histamine receptors in GtoPdb v.2023.1

, 2023
Histamine receptors (nomenclature as agreed by the NC-IUPHAR Subcommittee on Histamine Receptors [80, 174]) are activated by the endogenous ligand histamine. Marked species differences exist between histamine receptor orthologues [80]. The human and rat
Hill, Stephen J., Young, J. Michael, Steve Liu, Jean-Charles Schwartz, Shankley, Nigel P., Haas, Helmut L., Holger Stark, Nigel P. Shankley, Robin Thurmond, Paul Chazot, Stephen J. Hill, Fukui, Hiroyuki, Hills, Rebecca, J. Michael Young, Levi, Roberto, Leurs, Rob, Marlon Cowart, Rebecca Hills, Cowart, Marlon, Gutzmer, Ralf, C. Robin Ganellin, Seifert, Roland, Ganellin, C. Robin, Rob Leurs, Roberto Levi, Timmerman, Henk, Stark, Holger, Panula, Pertti, Hiroyuki Fukui, Schunack, Walter, Chazot, Paul, Roland Seifert, Liu, Steve, Schwartz, Jean-Charles, Walter Schunack, Henk Timmerman, Pertti Panula, Helmut L. Haas, Thurmond, Robin, Ralf Gutzmer   +39 more
core   +1 more source

Identifying transcription factors controlling the basal expression of human MRP4 highlights a substantial role for Sp1

FEBS Open Bio, EarlyView.
The MRP4 transporter exports several drugs and signaling molecules. Here, we identified key promoter elements regulating basal MRP4 expression. Using reporter assays, we defined a conserved region with essential Sp1 and contributory Ets sites, which controlled basal MRP4 expression.
Debora Singer, Angelique Kragl, Katrin Ziems, Juliane Glaubitz, Sophie Grammbauer, Susanne Hildebrandt, Mladen V. Tzvetkov, Gabriele Jedlitschky   +7 more
wiley   +1 more source

Targeting Histamine Receptors in Irritable Bowel Syndrome: A Critical Appraisal. [PDF]

J Neurogastroenterol Motil, 2017
Irritable bowel syndrome is a group of functional gastrointestinal disorders with not yet fully clarified etiology. Recent evidence suggesting that mast cells may play a central role in the pathogenesis of irritable bowel syndrome paves the way for ...
Fabisiak A, Włodarczyk J, Fabisiak N, Storr M, Fichna J.   +4 more
europepmc   +2 more sources

Perioperative nonspecific histamine release: a new classification by aetiological mechanisms and evaluation of their clinical relevance

, 1993
As a consequence of the performance of a randomized controlled clinical trial on perioperative histamine release and cardiovascular and respiratory disturbances, several types of increases in plasma histamine had to be distinguished instead of only two ...
Lorenz, Wilfried, Schäfer, U., Junginger, T., Stinner, B., Nies, C., Duda, D., Hasse, C., Menke, H., Rothmund, M., Sitter, H.   +9 more
core   +1 more source

Immunoinflammatory Mechanisms and Biocompatibility of Bioactive Dental Biomaterials: From Fundamental Insights to Clinical Translation

Advanced Healthcare Materials, EarlyView.
Surface‐host dialogue at the implant interface governs biological fate and osseointegration. Surface physicochemical properties of titanium (Ti) dental implants, including microgrooves, nanopatterns, nanotopography, roughness, and wettability, modulate the initial adsorption of proteins and the formation of a dynamic biointerface.
Daniela Moreira Cunha, Amanda Paino Santana, Marta Maria Alves Pereira, Mariana Martins Guerreiro, Jose Mauro Granjeiro, Jamil Awad Shibli, Jeroen J. J. P. van den Beucken, Anton Sculean, Rafael Scaf de Molon, Erica Dorigatti de Avila   +9 more
wiley   +1 more source