Calcium distribution

Runia, XT. 1987 Strontium and calcium distribution in plants effect on paleodietaiy studies. 

Table VIII. Calcium Distribution in Selected Coals...

Wymer, C. L., Bibikova, T. N. and Gilroy, S. (1997). Cytoplasmic free calcium distributions during the development of root hairs of Arabidopsis thaliana. Plant J. 12, 427-39. 

Kotelnikov A. R., Bychkov A. M., and Chernavina N. I. (1981). Experimental stndy of calcium distribution in granitoid plagioclase and water-salt fluid at 700°C and Pn = 1000 atm. 

The studies reported above implicated calcium movement in the mechanism.It was postulated that 2-PAM may Increase the rate of calcium movement either by interfering with calcium binding to its binding site or by directly stimulating the release of bound calcium.21 It was suggested that 2-PAM may not have increased cell permeability or affected the rate of re-entry of calcium into the cell, or 2-PAM may have increased calcium distribution in the vicinity of myofilaments. 

Vicanova, J. etal., Normalization of epidermal calcium distribution profile in reconstructed human epidermis is related to improvement of terminal differentiation and stratum corneum formation, J. Invest. Dermatol., 111,97, 1998. 

Benoit PW, Yagiela JA, Fort NF (1980) Pharmacologic correlation between local anesthetic-induced myotoxicity and disturbances of intracellular calcium distribution. Toxicol Appl Pharmacol 52 187-198... 

Figure 6. Calcium distribution in the lower part of the lithologic sequence including underclay, the Kinneman Creek lignite, and directly overlying clay and mudstone.

Figure 19 SEM and energy dispersive analysis micrographs (175x) showing mineral distribution, Ca, Si, and Al, localization in a frozen, planar transverse section 1 mm behind the tip in a second year needle of Pinus strobus (Eastern white pine) (a) secondary electron image, (b) calcium distribution, (c) Si distribution, and (d) Al distribution. Abbreviations endodermis (en), epidermis (ep), hypodermis (hy), mesophyll (me), transfusion tissue (tr), vascular tissue (vt), and xylem wall (xw) (courtesy of M. J. Hodson and A. G. Sangster, unpublished collection).

Mode of action. Caffeine and theophylline have complex and incompletely elucidated actions, which include inhibition of phosphodiesterase (the enzyme that breaks down cyclic AMP, see p. 191), effects on intracellular calcium distribution, and noradrenergic function. When theophylline (as aminophylline) is used alongside salbutamol in asthma its action adds up to increased benefit to the bronchi, but increased risk to the heart. 

In these experiments the calcium distribution ratio between the Dowex 50 resin and the solution was established to be about ten by using the corresponding amounts of exchanger and CaCL salt. With such a distribution ratio, the isotopic fractionation effect is almost completely shifted into the solution, whereas the initial isotope ratio is present in the resin phase (see Chap. 2,4). Under this condition and under... 

On the basis of the otherwise contested results of Briquet and Viaux (1967), diphenamid inhibits the RNA synthesis of the roots, and it was shown that it inhibits the uptake of inorganic ions in sensitive plants and also affects calcium distribution in the plants (Nashed and Ilnicki, 1968). 

Weiss GB and Goodman FR (1969) Effects of lanthanum on contraction, calcium distribution and Ca-45 movements in intestinal smooth muscle. J Pharmacol Exp Ther 169 46-55. 

Tian, H.Q. Russell, S.D. (1997). Calcium distribution in fertilized and unfertilized ovules and embryo sacs of Nkotiana tabacum L. Planta, Vol.202, No.l, (April 1997), pp. 93-105, ISSN 1432-2048... 

Figure 10. Calcium distribution profile as determined by EPMA for in situ impregnated sol-gel samples 0 dried at 2TC in a ventilator oven (slow drying)...

R K (2003). Calcium distributions in human hair by ToF-SIMS. Biochim Biophys Acta,... 

Laser-microprobc mass spectrometry has an unusually high sensitivity (down to 10 g), is applicable to both inorganic and organic (including biological) samples, has a spatial resolution of about I pm, and produces data at a rapid rate. Some typical applications of laser-microprobe mass spectrometry include determination of Na/K concentration ratios in frog nerve fiber, determination of the calcium distribution in retinas, classification of asbestos and coal mine dusts, determination of fluorine distributions in dental hard tissue, analysis of amino acids, and study of polymer surfaces. ... 

The introduction of tracer amounts of radionuclides into an organism followed by application of the autoradiographic technique to study the distribution of the tracer after a period of time is common practice. In a study of the calcium distribution in leaves of dogwood trees (Cornus florida), Thomas (1968) injected Ca into the stems of living trees. He compared his autoradiographic results with those from a chemical analysis and, on the basis of his results and the literature, concluded ... 

Thomas, W. A. 1968. Calcium distribution in leaves Autoradiography versus chemical analysis. Int. J. Appl. Radiat. Isot. 19(6) 544-545. 

In Figure 4.14(D), the combined FFLS filtered images at 22 eV (carbonaceous species plasmon) and 36 eV (calcium M23 core edges), representing respectively the carbon and calcium distributions on a single particle of 7 nm diameter, confirm the theoretical structure of the particle an organic shell surrounds the inner mineral core, which is rich in calcium. 

Nanostructure evolution and calcium distribution in sol-gel derived bioactive glass./. Mater. Chem, 19, 1276-1282. 

Wendt-Gallitelli, M. F. Isenberg, G. (1985). "Extra- and intracellular lanthanum modified calcium distribution, inward currents and contractility in guinea pig ventricular preparations." Pflugers Arch, 405(4), 310-22. 

Effects of Vitamin D Deficiency.—The vitamin regulates the absolute and relative absorption of calcium and phosphate solutes from the intestinal tract, and may be regarded as a calcio-kinetic, or calcium-distributing, vitamin. Avitaminosis D is characterised by —... 

Clausen, T., Elbrink, J., and Martin, B. R., 1974, Insulin controlling calcium distribution in muscle and fat cells, Acta Endocrinol. 77(SuppL191) 137. 

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