Production of 1,2-Diacylglycerol in Human Erythrocyte ‘Ghosts’ Exposed to Very Low Calcium Ion Concentrations

1976 ◽  
Vol 4 (2) ◽  
pp. 252-253
Author(s):  
DAVID ALLAN ◽  
ROBERT H. MICHELL
Keyword(s):  
Human Erythrocyte ◽  
Calcium Ion ◽  
Erythrocyte Ghosts ◽  
Ion Concentrations ◽  
Low Calcium

Shape transformation of erythrocyte ghosts depends on ion concentrations

1985 ◽  
Vol 5 (5) ◽  
pp. 417-423 ◽  
Author(s):  
Andreas Herrmann ◽  
Peter Müller ◽  
Roland Glaser
Keyword(s):  
Human Erythrocyte ◽  
Transmembrane Potential ◽  
Human Erythrocytes ◽  
Erythrocyte Ghosts ◽  
Shape Transformation ◽  
Ion Concentrations ◽  
Nacl Concentration ◽  
Shape Transformations

Resealed human erythrocyte ghosts undergo shape transformations similar to those of intact erythrocytes. The results indicate that the shape of these ghosts depends on the inner as well as on the outer NaCl concentration. A correlation between shape and calculated transmembrane potential was established similar to that for intact human erythrocytes.

scholarly journals Sodium-Induced Calcium Flux via Mitochondrial NCE is Dissimilar when Derived from Matrix and Extra-Matrix Calcium Ion Concentrations

2012 ◽  
Vol 102 (3) ◽  
pp. 164a
Author(s):  
Christoph A. Blomeyer ◽  
David F. Stowe ◽  
Ranjan K. Pradhan ◽  
Jason N. Bazil ◽  
Ranjan K. Dash ◽  
...  
Keyword(s):  
Calcium Ion ◽  
Calcium Flux ◽  
Ion Concentrations

scholarly journals Constituent elements of insoluble and non-volatile particles during the Last Glacial Maximum exhibited in the Dome Fuji (Antarctica) ice core

2009 ◽  
Vol 55 (191) ◽  
pp. 552-562 ◽  
Author(s):  
Yoshinori Iizuka ◽  
Takayuki Miyake ◽  
Motohiro Hirabayashi ◽  
Toshitaka Suzuki ◽  
Sumito Matoba ◽  
...  
Keyword(s):  
Last Glacial Maximum ◽  
Calcium Ion ◽  
Ice Core ◽  
Ice Cores ◽  
Glacial Maximum ◽  
Ion Concentrations ◽  
Last Glacial ◽  
Insoluble Particles ◽  
Almost All ◽  
Constituent Elements

AbstractIn order to find environmental signals based on the dust and calcium-ion concentrations in ice cores, we determine the constituent elements of residue particles obtained after melting ice samples. We have designed a sublimating system that operates at −45°C, below the eutectic temperatures of major salts. This system permits us to obtain a great many non-volatile particles. After studying the non-volatile particles, we immersed them in water to remove soluble particles and compounds. We thereby analyzed a total of 1272 residue particles (from the melted sample), 2418 non-volatile particles (after sublimation) and 1463 insoluble particles taken from five sections of Last Glacial Maximum ice from the Dome Fuji (Antarctica) ice core. Their constituent elements were determined by scanning electron microscopy/energy-dispersive X-ray spectrometry (SEM-EDS) and compared to the dust, calcium-ion and sodium-ion concentrations measured by ion chromatography. Our results indicate that >99.9% of the insoluble particles contain silicon but no sulfur, nitrogen or chlorine. A significant number of the non-volatile particles, however, contain sulfur and chlorine. We conclude that insoluble dust consists mostly of silicate, that almost all calcium ions originate from calcium sulfate and that almost all sodium ions originate from sodium sulfate and sodium chloride.

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