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Journals / İstanbul Üniversitesi Mühendislik Fakültesi Yerbilimleri Dergisi / 2008 / Cilt: 21 - Sayı: 1

The development of biomagnetism; magnetic analysis of iron components in human brain

Biomağnetizmanın gelişimi; insan beynindeki demirli bileşenlerin mağnetik analizi

Naci ORBAY
Mualla Cengiz ÇİNKU
Pages
1–9
Publication Date
2022-10-18
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

A systematic variation of magnetic particle concentraition in epileptic and non-epileptic human brain tissues seems not to be acceptable for the presence.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The presence of magnetite mineral in living organism is demonstrated by different kind of studies using magnetic analysis.
📊
Key Findings & Data:Three different type of studies are introduced to demonstrate the presence of ferromagnetic minerals thought to be magnetite in human brain.
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Conclusion & Impact:A systematic variation of magnetic particle concentraition in epileptic and non-epileptic human brain tissues seems not to be acceptable for the presence.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

The presence of magnetite mineral in living organism is demonstrated by different kind of studies using magnetic analysis. However in the recent years it has been documented in the human brain. Three different type of studies are introduced to demonstrate the presence of ferromagnetic minerals thought to be magnetite in human brain. Therefore magnetic properties of epilepsy and non-epilepsy human brain tissues were analysed using isothermal remanent magnetization (IRM) acquisition and alternating field (A.F.) demagnetization experiments. It has been deduced that magnetite exist in human brain tisues which is different in grain size and shape than those predicted from bacteria. A systematic variation of magnetic particle concentraition in epileptic and non-epileptic human brain tissues seems not to be acceptable for the presence.

Özet

Mağnetit mineralinin canlı organizmalardaki varlığı, farklı çalışmalarda mağnetik analiz yönteminin kullanılması ile ispatlanmıştır. Son yıllarda bu mineralin insan beyninde de var olduğu bildirilmiştir. Mağnetit mineralinin insan beynindeki varlığını göstermek için üç farklı mağnetik mineroloji çalışması tanıtılmıştır. Bunun için epilepsi ve epilepsi olmayan insan beyin dokusuna ait mağnetik özellikler eş ısıl kalıntı mıknatıslanma (EIKM) oluşum ve alternatif alan (AA) temizleme yöntemi kullanılarak belirlenmiştir. Yapılan çalışmalar, insan beyninde mağnetit mineralinin var olduğunu ve bakterilerden farklı bir dane boyutu ve şekline sahip olduğunu göstermiştir. Epilepsi ve epilepsi hastası olmayan insan beyin dokusundaki mağnetik konsantrasyonda sistematik bir değişim şimdilik görülmemiştir.

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Cite This Article

ORBAY, N., ÇİNKU, M. C. (2022). The development of biomagnetism; magnetic analysis of iron components in human brain. İstanbul Üniversitesi Mühendislik Fakültesi Yerbilimleri Dergisi, Cilt: 21 - Sayı: 1, 1–9. https://ajindex.com/articles/554084

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References (16)

  1. Beard, J.L., Connor, J.R., Jones, B.C., 1993, Iron in the Brain. Nutr. Rev. 51, 157-170.
  2. Blakemore, R.P., 1975, Magnetotactic bacteria. Science 190:377-379
  3. Brem, F., Hirt, A.M., Simon, C., Wieser, H.G., Dobson, J., 2005, Characterization of iron compounds in tumour tissue from temporal lobe epilepsy patients using low temperature magnetic methods. Biometals 18, 191-197.
  4. Brem, F., Tiefenauer, L., Fink, A., Dobson, J., and Hirt, A. M., 2006, A mixture of ferritin and magnetite nanoparticles mimics the magnetic properties of human brain tissue, Physıcal Revıew B 73, 224427. Brittenham, G.M., Farrell, D.E., Haris, J.W., Feldman, E.S., Danish, E.H., Muir, W.A., Tripp, J.H., Bellon, E.M., 1982, Magnetic susceptibility measurements of human iron stores. N Engl J Med 307: 167 1-1675.
  5. Butler, R.F., and S.K. Banerjee, 1975, Theoretical single-domain grain size range in magnetite and titanomagnetite, J. Geophys. Res., 80, 4049-4058.
  6. Chang, S.B.R., and Kirschvink, J.L., 1989, Magnetofossils, the Magnetization of Sediments, and the Evolution of Magnetite Biomineralization. Annual Review of Earth and Planetary Sciences Vol. 17: 169-195.
  7. Chasteen, N.D. and Harrison, P.M., 1999, Mineralization of ferritin: An efficient means of iron storage. Journal of Structural Biology 126, 182-194.
  8. Cisowski, S., 1981, Interacting vs. non-interacting single domain behavior in natural and synthetic samples. Phys. Earth Planet Inter., 26, 56-62.
  9. Dobson, J., 2001, Nanoscale biogenic iron oxides and neurodegenerative disease. FEBS Lett 496, 1-5.
  10. Dobson, J., 2004, Magnetic iron compounds in neurological disorders. Ann N Y Acad Sci., 1012: 183-192.
  11. Dobson, J. and Schultheiss-Grassi, P.P., 1996, Magnetic properties of human hippocampal tissue: evaluation of artefact and contamination sources. Brain Res Bull 39, 255-259.
  12. Dobson, J., 2002, Investigation of age-related variations in biogenic magnetite levels in the human hippocampus, Exp Brain Res 144: 122-126.
  13. Frankel, R.B., Blakemore. R.P., 1980, Navigational compass in magnetic bacteria. J. Magn. Magn. Mater., vol. 15-18 pp. 1562-1564.
  14. Gomori, J.M., Grossman, R.I., Goldberg, H.I., Zimmerman, R.A., Bilaniuk, L.T., 1985, Intracranial hematomas: Imaging by high-field MR. Radiology 157: 87-93.
  15. Gorby, Y.A., Beveridge, T.J., Blakemore, R.P., 1988, Characterization of the bacterial magnetosome membrane. J Bacteriol 170: 834-841.
  16. Goree, W. S. and Fuller, M., 1976, Magnetometers using Rf-driven SQUIDS and their applications in rock magnetism and paleo