Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"Calcium ion concentration"”.
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Role of magnesium ions in the excitation of vascular smooth muscle. Effects of hypermagnesaemia and hypomagnesaemia on drug-induced contractions of mammalian arteries with special reference to the involvement of changed tissue calcium ion concentration or distribution in the observed responses.
Studies on the perfused rabbit ear artery preparation showed that withdrawal of Mg 2+ from extracellular fluid potentiated the responses to histamine and ATP but not to catecholamines. Similar results were obtained in [2xCa2+] Krebs solution. Increases in [Mg 2+] decreased responses to the three …
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Modeling and Ion Mapping of Intracellular Calcium Distribution in Molluscan Neural Somata
… constants of 1-3 sec) buffering of intracellular calcium in molluscan cell bodies, a diffusion-reaction model was developed. The model took into account the binding reactions of Ca('2+) with a calcium-indicating dye (arsenazo III) and an endogenous Ca('2+) buffer. The results from this model show …
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Embryonic Epithelial Development is Modulated by Extracellular Calcium
This study investigated the effects of calcium on epithelial differentiation in organ-cultured embryonic chick duodenum. Alteration of calcium ion concentration of culture medium above or below the physiological Ca2+ concentration of embryonic chick serum strongly influenced gastrointestinal …
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Admicellar Polymerization Of Calcium Carbonate And Its Performance In Drilling Fluids
Admicellar polymerization using sodium dodecylsulfate (SDS) template to form ultrafilm polystyrene on commercial calcium carbonate (CaCO3 ) of various particle sizes was studied. Adsorption isotherms of SDS decrease after the critical micelle concentration (CMC) of SDS was observed. This is …
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Investigation of the role of smooth muscle function in egg transport in the mouse oviduct.
… oviduct is important for successful implantation to occur. It is generally accepted that variations in the innate contractile activity of the oviduct musculature regulate the rate of egg transport, but the controlling mechanism behind these changes in muscular activity is unclear. This study …
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UNDERSTANDING THE PATHOLOGICAL EFFECTS OF EXOGENOUS MONOMERIC TAU PROTEIN AND THE DEVELOPMENT OF NOVEL TREATMENTS FOR ALZHEIMER’S DISEASE
… through pathways resulting in the gradual formation of neurofibrillary tangles. The uptake of monomeric tau from the extracellular medium, and its aggregation at low pH inside of neurons has previously been shown by the group, but any pathophysiological effects of this aggregation remain unclear. …
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Development of a model cell culture system in which to study early effects of neuropathy-inducting organophosphates
… susceptible animal species after early inhibition and aging of the enzyme, neurotoxic esterase (neuropathy target esterase, or NTE). In this study, the human neuroblastoma cell line, SY-5Y, was examined for its potential to serve as a nonanimal model for the study of the early effects of …