... Ca2+ compete with H+ for common sites of binding in cytoplasm. According to the data presented elsewhere [12], Ca2+ efflux through membrane of rat thymocytes may be activated by a direct increase in pH, for instance by the external ...

... Ca2+ antagonists are not a uniform chemical substance class, but are divided into several main groups. The phenylalkylamines, with the prototype verapamil, the dihydropyridines, with the prototype nifedipine, and the benzothiazepine ...

... Ca2+ circulating in the blood. It does this by decreasing the release of Ca2+ from bone (inhibits osteoclasts) and increasing the deposition of Ca2* in bone (stimulates osteoblasts). • Calcitonin release is regulated through a negative ...

... Ca2+ efflux from the ER may induce apoptosis in a variety of ways, which may include events such as reactive oxygen species (ROIs, "free radicals"), excess mitochondrial Ca2+ uptake, or activation of gene transcription [175]. Activation ...

... Ca2+ current in response to Ca mobilizing agonists [40]. It is also reported that the intracellular ATP dose-dependently enhances the L-type Ca2"1" current without altering its voltage- dependent features [41,42]. p-agonists increase ...

... Ca2+ channels over L-type Ca2+ channels is probably responsible for many of its unique properties. It does not have the negative inotropic effects associated with some Ca2+ antagonists [50]. Its efficacy and tolerability in the ...

... Ca2+ at 37 °C for 30 ffiin. The volumes of RBC were registered using a method of resistance pulse spec Iroscopy during pumping of the cell suspension with the rate of 1 .8 filIsec through a microhole with the diameter of 50 /<m and ...

... Ca2+ channel blockers, when combined with CQ, fail to increase CQ susceptibility in CQ-sensitive strains of P. falciparum [12, 16]. The reversal activity of Ca2+ antagonists has opened a debate on the role of Ca2+ transport systems in ...

... Ca2+]i in VSMC isolated from rat tail arteries [94]. Such a change in [Ca2+]i correlated well with the stimulatory effect of 1.25D on L-type calcium channel activity in the same type of VSMC. Whether 1.25D directly acts on the channel ...

... Ca2+][C032-] = x or [Ca2+]x2.0 = x [Ca2+] = f M Solubility of CaF2 = y 4P = 4P = xP xP. (a. +. x)•. (a. +. x)•. (a-x)P. X2P K and spCaF2 = W 4y3 = [Ca2+][F-]2 4y3 = f [F-]2 2. KspCaso4 = [Ca2+][S042-] = 2.4x1 0-5 ...(1) [CaCy = 0.005 M [Ca2 ...