Effects of ELF and static magnetic fields on calcium oscillations in islets of Langerhans

F, Madec; Billaudel, B.; R, Sauvage; Sartor, P; Veyret, B.

doi:10.1016/s1567-5394(03)00049-5

Cited by 15 publications

(7 citation statements)

References 29 publications

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“…This observation was in agreement with the findings from other laboratories. For example, acute exposure of Islets of Langerhans to a 1 mT SMF did not alter the organization or frequency of intracellular calcium oscillations [Madec et al, 2003]. Others observed that calcium/calmodulin dependent phosphorylation of myosin light chains was unaffected in a cell free system following a 200 mT SMF acute exposure [Markov et al, 1993;Coulton et al, 2000] (although it must be stated that a pulsed waveform at a strength of 20-200 mT increased phosphorylation and neurite growth [Pilla et al, 1999]).…”

Section: Discussionmentioning

confidence: 99%

Real‐time measurement of cytosolic free calcium concentration in HL‐60 cells during static magnetic field exposure and activation by ATP

Belton

Commerford

Hall

et al. 2008

Bioelectromagnetics

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Calcium ions are involved in a number of important signal transduction pathways in cells. Cytosolic calcium concentration ([Ca(2+)](c)) can be affected by the activation of Ca(2+) channels through the action of ligands such as ATP. The response of [Ca(2+)](c) to ligands may be affected by external factors like magnetic fields. The purpose of this study was to determine if exposure to a static magnetic field (SMF) for 800 s altered the [Ca(2+)](c) response to ATP in undifferentiated HL-60 cells. We sham exposed or field exposed fura-2 loaded HL-60 cells to a SMF of 1, 10, and 100 mT. Cells were activated with ATP 300 s into the exposure. The level of [Ca(2+)](c) was followed before, during, and after field or sham exposure with a ratiometric fluorescence spectroscopy system. It was found that high concentrations of ATP resulted in greater [Ca(2+)](c) responses, but faster recovery to near basal levels. The application of 1, 10, or 100 mT SMF did not affect the [Ca(2+)](c) response to ATP. Future work could examine the effect of a longer SMF exposure on the [Ca(2+)](c) response to ATP. Longer exposures might provide sufficient time for morphological changes in the plasma membrane to occur.

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Section: Discussionmentioning

confidence: 99%

Real‐time measurement of cytosolic free calcium concentration in HL‐60 cells during static magnetic field exposure and activation by ATP

Belton

Commerford

Hall

et al. 2008

Bioelectromagnetics

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show abstract

“…The viability and proliferation [7], activity of enzymes [8], transport of ions [9,10] and gene transcription or expression [11][12][13] were investigated -with different results.…”

Section: Introductionmentioning

confidence: 99%

Effects of low-frequency magnetic fields on the viability of yeast Saccharomyces cerevisiae

Novák

Strašák

Fojt

et al. 2007

Bioelectrochemistry

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“…Ionomycin is a well-known ionophore and increases intracellular Ca 2＋ concentration through Ca 2＋ -release activated Ca 2＋ (CRAC) channels [8]. Thapsigargin also increases intra- [16,17], to decrease it [18] and to have no effect on it [19,20]. Such different effects of EMF on intracellular Ca 2＋ concentration may be due to the cell types used and the experimental conditions.…”

Section: Discussionmentioning

confidence: 99%

Intracellular Ca²⁺Mobilization and Beta-hexosaminidase Release Are Not Influenced by 60 Hz-electromagnetic Fields (EMF) in RBL 2H3 Cells

Hwang

Song

Kim

et al. 2011

Korean J Physiol Pharmacol

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Effects of ELF and static magnetic fields on calcium oscillations in islets of Langerhans

Cited by 15 publications

References 29 publications

Real‐time measurement of cytosolic free calcium concentration in HL‐60 cells during static magnetic field exposure and activation by ATP

Real‐time measurement of cytosolic free calcium concentration in HL‐60 cells during static magnetic field exposure and activation by ATP

Effects of low-frequency magnetic fields on the viability of yeast Saccharomyces cerevisiae

Intracellular Ca²⁺Mobilization and Beta-hexosaminidase Release Are Not Influenced by 60 Hz-electromagnetic Fields (EMF) in RBL 2H3 Cells

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Effects of ELF and static magnetic fields on calcium oscillations in islets of Langerhans

Cited by 15 publications

References 29 publications

Real‐time measurement of cytosolic free calcium concentration in HL‐60 cells during static magnetic field exposure and activation by ATP

Real‐time measurement of cytosolic free calcium concentration in HL‐60 cells during static magnetic field exposure and activation by ATP

Effects of low-frequency magnetic fields on the viability of yeast Saccharomyces cerevisiae

Intracellular Ca2+Mobilization and Beta-hexosaminidase Release Are Not Influenced by 60 Hz-electromagnetic Fields (EMF) in RBL 2H3 Cells

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Intracellular Ca²⁺Mobilization and Beta-hexosaminidase Release Are Not Influenced by 60 Hz-electromagnetic Fields (EMF) in RBL 2H3 Cells