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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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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 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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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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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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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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Cereal Chemistry, 2000
ABSTRACTWhite pan breads were prepared with flour highly fortified with calcium (Ca), using Ca carbonate (Ca, 38.8%) or a high Ca whey powder (Ca, 5.6%) as the Ca source; bread was also prepared using Ca carbonate plus lactose. Ca was added to flour at 924 mg/100 g of flour, a level 4.4 times higher than specified under the U.S.
J. A. Gelroth +2 more
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ABSTRACTWhite pan breads were prepared with flour highly fortified with calcium (Ca), using Ca carbonate (Ca, 38.8%) or a high Ca whey powder (Ca, 5.6%) as the Ca source; bread was also prepared using Ca carbonate plus lactose. Ca was added to flour at 924 mg/100 g of flour, a level 4.4 times higher than specified under the U.S.
J. A. Gelroth +2 more
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Industrial & Engineering Chemistry Process Design and Development, 1981
In the CO/sub 2/ Acceptor Process for gasifying lignite char, CaO is regenerated and recycled. Liquidus temperatures were established as a function of composition and water pressure for the CaCO/sub 3/-Ca(OH)/sub 2/-CaO system. Water pressures in the range of 1.7 to 7.0 MPa were involved in this study.
C. M. Shen +2 more
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In the CO/sub 2/ Acceptor Process for gasifying lignite char, CaO is regenerated and recycled. Liquidus temperatures were established as a function of composition and water pressure for the CaCO/sub 3/-Ca(OH)/sub 2/-CaO system. Water pressures in the range of 1.7 to 7.0 MPa were involved in this study.
C. M. Shen +2 more
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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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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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