Results 221 to 230 of about 1,256,195 (268)

CALCIUM NEED AND CALCIUM UTILIZATION

Journal of the American Medical Association, 1933
In 1911, Sherman1called attention to the calcium deficiency of the average American dietary. Again, after twenty years, he2stated that "probably a larger proportion of the ordinary dietaries, both of adults and of children, can be improved by enrichment in calcium than in any other one chemical element." It seems surprising, in view of the study and ...
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Atherogenesis, calcium and calcium antagonists

The American Journal of Cardiology, 1990
Hypercholesterolemia and arterial hypertension are highly interrelated risk factors of atherosclerosis. Early lesions in nonhuman primates with dietary hypercholesterolemia resemble atherosclerotic lesions demonstrable in the arteries of American children with comparably elevated plasma cholesterol levels.
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Calcium, Calcium Translocation, and Specific Calcium Antagonists

1978
It is now almost one hundred years since Sidney Ringer (1882) described the importance of Ca2+ in the maintenance of frog heart contractility. Subsequent to this observation, it has been increasingly recognized that Ca2+ plays a critical and central role in a multitude of biological events at both the intra-and extracellular levels (Duncan, 1976 ...
L. Rosenberger, D. J. Triggle
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Calcium and Calcium Alloys

2000
The article contains sections titled: 1. Introduction 2. Physical and Chemical Properties 3. Production 4. Uses 5. Occupational Health and Safety 6. Biological Relevance 6.1. Introduction 6.2. Chemical Properties of Ca Important in Biological Functions 6.3. Dietary Considerations; Distribution in the Body 6.4.
Stephen E. Hluchan, Kenneth Pomerantz
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Calcium-dependent and calcium-independent exocytosis

Trends in Neurosciences, 1989
A large body of evidence supports the concept that calcium (Ca2+) plays a pivotal role in the control of exocytosis. However, recent experiments suggest that a rise in intracellular Ca2+ does not necessarily trigger secretion, and also that secretion can occur independently of cytosolic free calcium levels.
D E, Knight, H, von Grafenstein, C M, Athayde   +2 more
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Calcium ions and calcium antagonists in ischaemia

Acta Neurochirurgica, 1982
The effects of a calcium antagonist, nimodipine, were tested on the response of the cerebral circulation to arterial pCO2 and blood pressure changes. The effects of reduced blood flow upon oedema formation and extracellular ion homeostasis under nimodipine preloading were studied.
L, Symon, R J, Harris, N M, Branston
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Simulation Strategies for Calcium Microdomains and Calcium-Regulated Calcium Channels

2012
In this article, we present an overview of simulation strategies in the context of subcellular domains where calcium-dependent signaling plays an important role. The presentation follows the spatial and temporal scales involved and represented by each algorithm.
Frederic, von Wegner, Nicolas, Wieder, Rainer H A, Fink   +2 more
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Calcium Entry, Calcium Redistribution, and Exocytosis

Annals of the New York Academy of Sciences, 2002
Abstract: At a given cytosolic domain of a chromaffin cell, the rate and amplitude of the Ca2+ concentration, [Ca2+]c, depend on at least three efficient regulatory mechanisms: (1) the plasmalemmal Ca2+ channels; (2) the endoplasmic reticulum (ER); and (3) the mitochondria.
Inmaculada, Cuchillo-Ibanez, Almudena, Albillos, Marcos, Aldea, Gloria, Arroyo, Jorge, Fuentealba, Antonio G, Garcia   +5 more
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Calcium and calcium-binding proteins in the nucleus

Molecular and Cellular Biochemistry, 1994
Calcium has long been known to play a role as a key cytoplasmic second messenger, but until relatively recently its possible involvement in nuclear signal transduction and the regulation of nuclear events has not been extensively studied. Evidence revealing the presence of transmembrane nuclear Ca2+ gradients and a variety of intranuclear Ca2+ binding ...
J S, Gilchrist, M P, Czubryt, G N, Pierce   +2 more
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Bone Repair in Calcium-Deficient Rats: Comparison of Xylitol + Calcium Carbonate with Calcium Carbonate, Calcium Lactate and Calcium Citrate on the Repletion of Calcium

The Journal of Nutrition, 1994
The potential value of xylitol in calcium therapy was evaluated by comparing the effect of dietary xylitol (50 g/kg diet) + calcium carbonate with the effects of calcium carbonate, calcium lactate and calcium citrate on bone repair of young male rats after the rats consumed for 3 wk a calcium-deficient diet (0.2 g Ca/kg diet).
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