Results 191 to 200 of about 1,096,111 (252)
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Calcium ionophore-induced egress of Toxoplasma gondii shortly after host cell invasion
Veterinary Parasitology, 2007Lucio Ayres Caldas +2 more
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Inhibition by verapamil of ionophore-mediated calcium translocation
Experientia, 1977Verapamil and other organic calcium-antagonists inhibit the A23187-mediated translocation of calcium from an aqueous into an organic phase.
Malaisse, Willy +2 more
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Calcium Chelators and Calcium Ionophores
1988The preceding chapters in this volume have demonstrated that Ca ions play critical roles in the regulation of a very large number of physiologic, pharmacologic, and biochemical processes. In the study of these processes, it is invariably necessary to control and measure or monitor the free [Ca2+] with a high degree of precision. Many of these processes
D. M. Bers, K. T. MacLeod
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Activation of porcine oocytes with calcium ionophore: Effects of extracellular calcium
Molecular Reproduction and Development, 1999The present study examined the mechanism of A23187-induced activation in pig oocytes, with special reference to the effects of extracellular calcium on oocyte activation. The following endpoints were evaluated: intracellular free calcium concentration ([Ca2+]i), intracellular pH ([pH]i), cortical granule (CG) exocytosis, pronuclear formation, and ...
W H, Wang +6 more
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Calcium uptake by myometrial membranes: Effect of A 23187, a calcium ionophore
European Journal of Pharmacology, 1976A subcellular fraction, relatively enriched with plasma membranes, showed an ATP-dependent Ca2+ uptake. The addition of a Ca2+. Other drugs (angiotensin, prostaglandin F2alpha, 5-hydroxytryptamine and cyclic nucleotides) had negligible effects on Ca2+ transport. The preparation appears to transport Ca2+, although binding is negligible.
P K, Rangachari +2 more
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Calcium Antagonists and Ionophores
1985The delineation and quantitation of the sources and pathways of Ca2+ mobilized during excitation—contraction coupling in smooth muscle is a problem of both importance and complexity. It is now generally agreed that both intracellular and extracellular sources of Ca2+ are involved and that the relative extent of their involvement is dependent upon the ...
D. J. Triggle, R. A. Janis
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Superior prevention of calcium ionophore cataract by E64d
Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease, 1992The purposes of this experiment were: (1), to compare effect of three E64 derivatives, E64, E64c and E64d in preventing nuclear opacity and proteolysis in calcium ionophore-induced cataract and (2), to measure the accumulation of E64 derivatives in the cultured lenses.
M, Azuma, L L, David, T R, Shearer
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Organic calcium-antagonists and calcium-ionophores.
Arzneimittel-Forschung, 1981info:eu-repo/semantics ...
Malaisse, Willy +3 more
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Ionophore-mediated calcium exchange diffusion in liposomes
Biochemical and Biophysical Research Communications, 1980Abstract The exchange diffusion of 45 Ca in multilamellar liposomes containing the antibiotic ionophore A23187 is enhanced in a dose-related fashion at increasing concentrations of external Ca 2+ or at increasing A23187/lipid molar ratios. An increase in fluidity of the lipid bilayer augments the permeability to Ca by facilitating both the ...
Deleers, Michel, Malaisse, Willy
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Ionophore A23187, calcium and contractility in frog eggs
Experimental Cell Research, 1974Abstract Ionophore A23187 elicits rapid cortical contractions in frog eggs at 10 −6 M conc. in the presence or complete absence of extracellular calcium. Intracellular EDTA or EGTA inhibits contractility, suggesting the importance of intracellular calcium for the response.
T E, Schroeder, D L, Strickland
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