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The growth regulatory fibroblast IK channel is the prominent electrophysiological feature of rat prostatic cancer cells.

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Physiological effectors for mitogenic cell growth control remain to be determined for mammalian tumor cells, particularly those derived from prostatic tissue. One such effector for mitogenic Ras/MAPK signaling in fibroblasts is an intermediate-conductance, calcium-activated potassium channel (FIK).

K+ currents activated by leukotriene D4 or osmotic swelling in Ehrlich ascites tumour cells.

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K+ and Cl- currents activated by hypoosmotic cell swelling (IK,vol and Icl,vol) or after addition of leukotriene D4 (LTD4) to cells in isotonic medium were studied in Ehrlich ascites tumour cells. IK,vol and Icl,vol were not affected by strong buffering of intracellular Ca2+ or by additional removal

Blockage of intermediate-conductance-Ca(2+) -activated K(+) channels inhibits progression of human endometrial cancer.

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Potassium (K(+)) channels have been implicated in proliferation of some tumor cells. However, whether K(+) channels are important to the pathogenesis of endometrial cancer (EC) remains unknown. In the present study, we report that intermediate-conductance Ca(2+)-activated K(+) (IKCa1) channels play

Vasorelaxant and Hypotensive Effects of an Ethanolic Extract of Eulophia macrobulbon and Its Main Compound 1-(4'-Hydroxybenzyl)-4,8-Dimethoxyphenanthrene-2,7-Diol.

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Background: Ethnopharmacological studies demonstrated the potential for Eulophia species to treat inflammation, cancer, and cardio-metabolic diseases. The aim of the study was to investigate the vasorelaxant effect of ethanolic Eulophia macrobulbon (EM) extract and its main phenanthrene on rat

Polarized ion transport during migration of transformed Madin-Darby canine kidney cells.

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Epithelial cells lose their usual polarization during carcinogenesis. Although most malignant tumours are of epithelial origin little is known about ion channels in carcinoma cells. Previously, we observed that migration of transformed Madin-Darby canine kidney (MDCK-F) cells depended on oscillating

K+ channel blockers inhibit tissue factor expression by human monocytic cells.

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Human monocytes express the important procoagulant protein, tissue factor (TF), after stimulation by a variety of agents, including bacterial lipopolysaccharide (LPS). Monocyte TF expression may contribute to intravascular coagulation in a number of disease states. The present studies show that

Ca2+-dependent K+ efflux regulates deoxycholate-induced apoptosis of BHK-21 and Caco-2 cells.

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OBJECTIVE Deoxycholate (DC) has proapoptotic and tumorigenic effects in different cell types of the gastrointestinal tract. Exposure of BHK-21 (stromal) cells to DC induces Ca(2+) entry at the plasma membrane, which affects intracellular Ca(2+) signaling. We assessed whether DC-induced increases in

Activation of muscarinic receptors by a hydroalcoholic extract of Dicksonia sellowiana Presl. HooK (Dicksoniaceae) induces vascular relaxation and hypotension in rats.

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Dicksonia sellowiana (Presl.) Hook is a native plant from the Central and South Americas that contain high levels of polyphenols, antioxidant compounds involved in protection against inflammation, cancer and cardiovascular risk. A phytomedicinal preparation obtained from aerial parts of D.

Vasodilatory Effect of Phellinus linteus Extract in Rat Mesenteric Arteries

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Phellinus linteus is a well-known medicinal mushroom that is widely used in Asian countries. In several experimental models, Phellinus linteus extracts were reported to have various biological effects, including anti-inflammatory, anti-cancer, hepatoprotective, anti-diabetic,

Zerumbone-Induced Analgesia Modulated via Potassium Channels and Opioid Receptors in Chronic Constriction Injury-Induced Neuropathic Pain

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Zerumbone, a monocyclic sesquiterpene from the wild ginger plant Zingiber zerumbet (L.) Smith, attenuates allodynia and hyperalgesia. Currently, its mechanisms of action in neuropathic pain conditions remain unclear. This study examines the involvement of potassium channels and opioid

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