Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12779/4831
Title: The effect of strong static magnetic field on lymphocytes
Authors: Aldinucci, Carlo
J. B., Garcia
Palmi, Mitri
Sgaragli, GIAN PIETRO
A., Benocci
Meini, Antonella
Pessina, Federica
Rossi, Claudio 
Bonechi, Claudia 
Pessina, GIAN PAOLO
Keywords: NMR; DC magnetic field; cytokines; calcium
Issue Date: 2003
Project: None 
Journal: BIOELECTROMAGNETICS
Abstract: 
We investigated whether static electromagnetic fields (EMFs) at a flux density of 4.75 T, generated by an NMR apparatus (NMRF), could promote movements of Ca2þ, cell proliferation, and the eventual production of proinflammatory cytokines in human peripheral blood mononuclear cells (PBMC) as well as in Jurkat cells, after exposure to the field for 1 h. The same study was also performed after activation of cells with 5 mg/ml phytohaemagglutinin (PHA). Our results clearly demonstrate that static NMRF exposure has neither proliferative, nor activating, nor proinflammatory effects on both normal and PHA activated PBMC. Moreover, the concentration of interleukin-1b, interleukin-2, interleukin-6, interferon, and tumour necrosis factor a (TNFa) remained unvaried in exposed cells. Exposure of Jurkat cells statistically decreased the proliferation and the proliferation indexes, which 24 and 48 h after exposure were 0.70.29 and 0.870.12, respectively. Moreover, in Jurkat cells the [Ca2þ]i was higher than in PBMC and was reduced significantly to about one half after exposure. This is consistent with the decrease of proliferation and with the low levels of IL-2 measured. On the whole, our data suggest that NMRF exposure failed to affect the physiologic behaviour of normal lymphomonocytes. Instead in Jurkat cells, by changing the properties of cell membranes, NMRF can influence Ca2þ transport processes, and hence Ca2þ homeostasis with improvement of proliferation.
Description: 
35368
URI: http://hdl.handle.net/20.500.12779/4831
ISSN: 0197-8462
DOI: 10.1002/bem.10071
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