| Cell membrane lipid molecular dynamics in a solenoid versus a magnetically shielded room. | |
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MedLine Citation:
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PMID: 9492167 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The generalized polarization function of the fluorescent probe 2-dimethylamino-6-lauroylnaphthalene has been used to evaluate the lipid dynamics in Friend erythroleukemia cell membrane. The values of this function varied during the culture growth cycle, showing decreased lipid dynamics 24-48 h from the cell seeding. When the cycle occurred in a solenoid producing a magnetic field of 70 microT at 50 Hz in addition to the 45 microT DC of the earth (short-term 4-day exposure), the membrane lipid dynamics during this same time-period decreased by about 10% (P < .04). After long-term (184 days) or extremely long-term (395 days) exposure of the cells to the magnetic field, little additional variation in the membrane lipid dynamics was observed, suggesting an adaptation phenomenon. A variation of membrane lipid dynamics was also observed due to in vitro cell differentiation (P < .02). Nevertheless, the exposure of both undifferentiating and differentiating cells to a highly attenuated magnetic field in a magnetically shielded room (20 nT DC plus 2.5 pT AC) did not induce any modification of membrane lipid dynamics. |
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Authors:
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P Volpe; T Parasassi; C Esposito; G Ravagnan; A M Giusti; A Pasquarelli; T Eremenko |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Bioelectromagnetics Volume: 19 ISSN: 0197-8462 ISO Abbreviation: Bioelectromagnetics Publication Date: 1998 |
Date Detail:
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Created Date: 1998-03-31 Completed Date: 1998-03-31 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8008281 Medline TA: Bioelectromagnetics Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 107-11 Citation Subset: IM |
Affiliation:
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Department of Biology of the University of Rome Tor Vergata, Italy. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Cell Cycle / radiation effects Cell Differentiation / radiation effects Cell Division / radiation effects Cell Membrane / metabolism, radiation effects Electric Conductivity Electromagnetic Fields* / adverse effects Environment, Controlled* Leukemia, Erythroblastic, Acute / metabolism, pathology Membrane Lipids / metabolism*, radiation effects Mice Time Factors Tumor Cells, Cultured |
| Chemical | |
Reg. No./Substance:
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0/Membrane Lipids |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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