European Journal of Pharmacology
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The phosphorylation of endogenous Nedd4-2 In Na+—absorbing human airway epithelial cells
European Journal of Pharmacology 732:32 (2014)Neural precursor cell expressed, developmentally down-regulated protein 4-2 (Nedd4-2) mediates the internalisation / degradation of epithelial Na+ channel subunits (α-, β- and γ-ENaC). Serum / glucocorticoid inducible kinase 1 (SGK1) and protein kinase A (PKA) both appear to inhibit this p...
Prevention of aortic calcification by etidronate in the renal failure rat model.
Our recent clinical study indicated that etidronate may inhibit the progression of aortic calcification in hemodialysis patients. To determine whether etidronate inhibits aortic calcification in renal failure rats, renal failure was induced by subtotal nephrectomy, in which 5/6 of the kidneys were r...
Mycophenolate mofetil prevents autoimmune glomerulonephritis and alterations of intrarenal adrenomedullin in rats
We studied the effects of mycophenolate mofetil, a specific inhibitor of inosine monophosphate dehydrogenase, on the mercuric chloride induced autoimmune glomerulonephritis in Brown Norway rats and also on the renal contents of adrenomedullin. In the rats with autoimmune glomerulonephritis, plasma a...
Physiological modulation of GABA(A) receptor plasticity by progesterone metabolites.
The possible functional relation between changes in brain and plasma concentrations of neurosteroids and the plasticity of gamma-aminobutyric acid type A (GABA(A)) receptors in the brain during pregnancy and after delivery was investigated in rats. The concentrations in the cerebral cortex and plasm...
SB-236057, a selective 5-HT1B receptor inverse agonist, blocks the 5-HT human terminal autoreceptor.
A novel compound, SB-236057 (1'-ethyl-5-(2'-methyl-4'-(5-methyl-1,3,4-oxadiazol-2-yl)biphenyl- 4-carbonyl)-2,3,6,7-tetrahydrospiro[furo[2,3-f]indole-3,4'-piperid ine]) has been shown to have high affinity for human 5-hydroxytryptamine1B (5-HT1B) receptors (pKi = 8.2) and displays over 75 or more-fol...
Effects of anticonvulsive drugs on pentylenetetrazol kindling and long-term potentiation in freely moving rats.
Drugs with anticonvulsive properties and different mechanisms of action were compared for their influence on long-term potentiation and pentylenetetrazol kindling in freely moving animals. Rats were chronically implanted with a stimulation electrode in the angular bundle and a recording electrode in...
Inhibition of ligand-gated cation-selective channels by tamoxifen.
We have investigated the action of tamoxifen and the related derivative toremifene on ligand-gated cationic nicotinic acetylcholine and 5-HT3 receptor channels. Tamoxifen and toremifene both inhibited cationic currents of adult-type human muscle nicotinic acetylcholine receptors expressed in Xenopus...
The response of rat colonic mucosa to 5-hydroxytryptamine in health and following restraint stress.
The present study characterized the rat colonic secretory response to 5-hydroxytryptamine (5-HT) and determined alterations in this response following stress. 5-HT stimulated rat colonic short-circuit current in a concentration-dependent fashion (pD2 = 5.19). This response was subject to desensitiza...
Evaluation of PD 154075, a tachykinin NK1 receptor antagonist, in a rat model of postoperative pain.
PD 154075 ([(2-benzofuran)-CH2OCO]-(R)-alpha-MeTrp-(S)-NHCH(CH3) Ph) is a selective tachykinin NK1 receptor antagonist. Its effect on development and maintenance of thermal and mechanical hypersensitivity was examined in a rat model of surgical pain. When administered 30 min before surgery, PD 154075...
Adenovirus-mediated expression of 5-HT1B receptors in cardiac ventricle myocytes; coupling to inwardly rectifying K+ channels.
We therefore investigated alternative effector systems that might be activated by the 5-HT1B receptor. We constructed a recombinant adenovirus that allows expression of high levels of the 5-HT1B receptor in a variety of cells. We chose cardiac ventricle myocytes because they express a muscarinic-gat...