Results 31 to 40 of about 3,468,317 (412)

Structural Determinants in the Calcitonin Receptor-Like Receptor (Crlr) Important for Cgrp and Adrenomedullin (Am) Receptor Function of Crlr/Receptor-Activity-Modifying Protein (Ramp) 1 and Crlr/Ramp2 Heterodimers

open access: yesThe Scientific World Journal, 2001
Cell surface protein cross-linking, coimmmunoprecipitation, and confocal microscopy identified CRLR/RAMP1-, CRLR/RAMP2-, and calcitonin receptor isotype 2 (CTR2)/RAMP1 heterodimers as CGRP-, AM-, and CGRP/amylin receptors, linked to cAMP production ...
W. Born   +4 more
doaj   +1 more source

A theory of Plasma Membrane Calcium Pump stimulation and activity [PDF]

open access: yesMichael Graupner, Frido Erler, Michael Meyer-Hermann, A Theory of Plasma Membrane Calcium Pump Stimulation and Activity, Journal of Biological Physics, Volume 31, Issue 2, May 2005, Pages 183 - 206, 2003
The ATP-driven Plasma Membrane Calcium pump or Ca(2+)-ATPase (PMCA) is characterized by a high affinity to calcium and a low transport rate compared to other transmembrane calcium transport proteins. It plays a crucial role for calcium extrusion from cells. Calmodulin is an intracellular calcium buffering protein which is capable in its Ca(2+) liganded
arxiv   +1 more source

Preparation, physical-chemical characterisation and cytocompatibility of calcium carbonate cements [PDF]

open access: yes, 2006
The feasibility of calcium carbonate cements involving the recrystallisation of metastable calcium carbonate varieties has been demonstrated. Calcium carbonate cement compositions presented in this paper can be prepared straightforwardly by simply mixing
Aizenberg   +67 more
core   +2 more sources

Bioactive calcium phosphate materials and applications in bone regeneration

open access: yesBiomaterials Research, 2019
BackgroundBone regeneration involves various complex biological processes. Many experiments have been performed using biomaterials in vivo and in vitro to promote and understand bone regeneration.
Jiwoong Jeong   +4 more
semanticscholar   +1 more source

Regulation of store-operated calcium entry [PDF]

open access: yesarXiv, 2023
Plasma membrane calcium influx through ion channels is crucial for many events in cellular physiology. Cell surface stimuli lead to the production of inositol 1,4,5-trisphosphate (IP3), which binds to IP3 receptors in the endoplasmic reticulum (ER) to release calcium pools from the ER lumen.
arxiv  

Calcium, sodium, and the calcium paradox. [PDF]

open access: yesCirculation Research, 1984
The effect of "sodium loading," of verapamil and of nifedipine on the gain in calcium and sodium, and on the loss of myoglobin, during the calcium paradox in adult rat hearts was examined. Raising cell sodium from 56.5 +/- 2.6 to 129.5 +/- 10.2 mumol sodium/gram dry weight did not alter the degree or rate of calcium gain or myoglobin release during ...
S E Perry   +3 more
openaire   +3 more sources

Vitamin D3 and calcium to prevent hip fractures in elderly women.

open access: yesNew England Journal of Medicine, 1992
BACKGROUND Hypovitaminosis D and a low calcium intake contribute to increased parathyroid function in elderly persons. Calcium and vitamin D supplements reduce this secondary hyperparathyroidism, but whether such supplements reduce the risk of hip ...
M. Chapuy   +7 more
semanticscholar   +1 more source

Calcium—Nutrient and Messenger

open access: yesFrontiers in Plant Science, 2019
Calcium is an essential element needed for growth and development of plants under both non-stressed and stress conditions. It thereby fulfills a dual function, being not only an important factor for cell wall and membrane stability, but also serving as a
Kathrin Thor
semanticscholar   +1 more source

Study on Process Mineralogy of a High Iron Potassium Feldspar from Jilin Province

open access: yesKuangchan zonghe liyong, 2022
By means of X-ray diffraction analysis, scanning electron probe microanalysis and optical microscopy, the chemical composition and mineral intercalation and particle size composition of potassium feldspar in Jilin were studied. The results show that main
Jiao Peng   +4 more
doaj   +1 more source

Pseudohypocalcemia caused by perchlorate (Irenat (R)) [PDF]

open access: yes, 2011
Background: Blood gas analysis (BGA), including measurement of ionized calcium, is performed routinely in patients with end stage renal disease on renal replacement therapy, especially when using citrate for regional anticoagulation.
Durner, Juergen   +4 more
core   +1 more source

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