Results 321 to 330 of about 2,875,119 (343)
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Atherogenesis, calcium and calcium antagonists
The American Journal of Cardiology, 1990Hypercholesterolemia 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 absorption and calcium bioavailability
Journal of Internal Medicine, 1992Calcium is important for bone health. It has been customary to focus on dietary calcium intake, but of central importance for the body needs in the individual patient is the actual calcium absorption. This absorption consists of an active vitamin D‐mediated component and a passive diffusional component.
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CALCIUM NEED AND CALCIUM UTILIZATION
Journal of the American Medical Association, 1933In 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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Calcium, Calcium Translocation, and Specific Calcium Antagonists
1978It 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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The American Journal of Medicine, 1960 T LEAST 90 per cent of all human kidney A stones have calcium as a major crystal constituent. The investigation of stone pathogenesis most frequently begins with determining whether an abnormality in calcium metabolism is a contributing factor. This report will review current information concerning factors which influence the excretion of calcium.
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The Journal of Nutrition, 1986
It seems we are about back to square one and the question that still needs an answer is whether diet, or calcium intake, plays a really significant role in the etiology of osteoporosis, especially hip fractures. Logic may tell us that calcium intake ought to be important but the evidence is weak.
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It seems we are about back to square one and the question that still needs an answer is whether diet, or calcium intake, plays a really significant role in the etiology of osteoporosis, especially hip fractures. Logic may tell us that calcium intake ought to be important but the evidence is weak.
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2002
Publisher Summary Calcium is the principal cation of bone, making up almost 20% of its dry weight. Bone constitutes a very large nutrient reserve for calcium in terrestrial vertebrates, a reserve that has acquired a major mechanical function. A major mechanism by which calcium is recognized to influence bone strength is through its effect on bone mass.
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Publisher Summary Calcium is the principal cation of bone, making up almost 20% of its dry weight. Bone constitutes a very large nutrient reserve for calcium in terrestrial vertebrates, a reserve that has acquired a major mechanical function. A major mechanism by which calcium is recognized to influence bone strength is through its effect on bone mass.
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2003
This chapter describes the chemical and biological value of the calcium ion. In calcium chemistry, our main interest is in equilibria within static, nonflowing systems. Hence, we examined the way calcium formed precipitates and complex ions in solution.
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This chapter describes the chemical and biological value of the calcium ion. In calcium chemistry, our main interest is in equilibria within static, nonflowing systems. Hence, we examined the way calcium formed precipitates and complex ions in solution.
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Simulation Strategies for Calcium Microdomains and Calcium-Regulated Calcium Channels [PDF]
, 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 +2 more
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Calcium-induced calcium release in neurones
Cell Calcium, 1996Neurones express several subtypes of intracellular Ca2+ channels, which are regulated by cytoplasmic calcium concentration ([Ca2+]c) and provide the pathway for Ca(2+)-induced Ca2+ release (CICR) from endoplasmic reticulum Ca2+ stores. The initial studies of CICR which employed several pharmacological tools (and in particular caffeine and ryanodine ...
Verkhratsky, A., Shmigol, A.
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