Test of Magnetic Sensitivity in Three Different Biological Systems

スポンサーリンク

概要

• 論文の詳細を見る

• Effects of a 5,000 gauss magnetic field on three biological systems were investigated. (1) Chinese hamster ovary (CHO) cells, growing in a plastic flask, were exposed to the magnetic field with full of F10 complete medium for 8 hours at room temperature. After the exposure, the cells were dispersed and replated for the examination of cellular growth and multiplicity, and of colony forming ability. (2) Naturally synchronous plasmodia of Physarum polycepharum were exposed at S-G_2 or M-S-G_2 for 8 hours at 25℃, and examined if mitosis was delayed. (3) The fertilized or early cleavage eggs of Xenopus laevis were also exposed (up to 72 hours), and their hatchability and delay in the embryonic development were checked. The results of the present study indicated that such short time exposure does not produce any biological disturbance in all of these three systems. A recent progress in nuclear fusion reactor technique makes some of radiobiologists interested in studying biological effects of large magnetic flelds, because workers in such an equipment will have a chance of the exposure to both the magnetic fields and radiation occupationally. Hitherto, there have been numerous attempts to demonstrate significant effects of magnetic fields on many biological systems. Review of biomagnecan be found in Barnothy, Busby, Kolin, Presman, Ragle, and Silver and Tobias. These literatures are both extensive and contradictory. In spite of considerable amount of experimental works which have been done in the field of biomagnetics, our understanding of the effect on the living organisms and in particular on the human body remains rudimentary : In some studies, magnetic fields have been reported to affect the physico-chemistry of bio-membranes, liquid crystals, enzymes, and other structures of biological importance, while other studies have shown negative results on similar systems.

• 日本放射線影響学会の論文

著者

• 岩崎 民子

  放射線医学総合研究所生物研究部

• 松本 信二

  放射線医学総合研究所

• 大原 弘

  放射線医学総合研究所生理病理研究部

• 岩崎 民子

  放射線医学総合研究所

• 岩崎 民子

  放医研

• 大原 弘

  放射線医学総合研究所

• 松平 寛通

  放射線医学総合研究所

関連論文

• 卵生により生じたアルテミア卵の孵化について(発生学)
• ガンマ線照射をうけたアルテミアの放射線感受性(発生)
• アルテミアの^3H-チミジンの取り込み(発生・内分泌)
• 浸漬後再乾燥処理を行ったアルテミア卵の孵化とその放射線感受性
• Radiosensitivity of Hypoxic HeLa S_3 Cells In Vitro
• Enhanced Killing of HeLa Cells Pre-Labeled with 5-Bromodeoxyuridine by Monochromatic Synchrotron Radiation at 0.9 A: An Evidence for Auger Enhancement in Mammalian Cells
• 放射線感受性大腸菌及び酵母菌の致死率の温度依存性
• 102 ヌードマウスに移植された人気管支による発癌実験(第1報)
• 煙探知器とわたくし
• Effects of Iodine Contrast Media on the Bone Marrow Colony Forming Units (CFUs) Following X-ray Irradiation in Mice
• わが国における白血病の地理的分布
• Test of Magnetic Sensitivity in Three Different Biological Systems
• A Shuttle Vector System for Studying Ionizing Radiation-Induced Mutagenesis in Mammalian Cells
• 発癌のリスクにおける最近のデータ
• Induction of Malignant Transformation in Mouse 10T1/2 Cells by Low-Dose-Rate Exposure to Tritiated Water and Gamma-Rays at Two Different Temperatures, 4℃ and 37℃
• 微弱放射線の人体への影響. I : 晩発障害とそのリスク評価
• 29a-D-2 微弱放射線の人体への影響 I. : 晩発障害とリスク評価
• 27p-D-2 微弱放射線の人体への影響 I : 晩発障害とそのリスク評価
• 29p-D-2 微弱放射線の人体への影響 I : 晩発障害とそのリスク評価
• 放射線リスク推定の最近の動向 : BEIR III報告書を中心に
• UNSCEAR 2000年報告書「放射線の線源と影響」
• 放射線ホルミシス - 疫学の立場から -
• 宇宙開発と放射線防護
• Artemia の出産様式と温度および飼料との関係
• Mortality on Malignant Neoplasms of Lymphatic and Haematopoietic Tissue Near Nuclear Power Plant Sites in Japan.
• Risk of the Occupational Injuries in Industry of Japan. II. Yearly Trend in the Occupational Deaths between 1984-1990 in Seven Categories of Industry.:II. Yearly Trend in the Occupational Deaths between 1984-1990 in Seven Categories of Industry
• A brief introduction of ICRP publication 50: Lung cancer risk from indoor exposures to radon daughters.
• Risk of the Occupational Injuries in Industry of Japan:I. Yearly Trend in the Occupational Deaths at Different Age Groups between 1973-1983 in Seven Categories of Industries
• :(III) Somatic Risks from Low Dose Irradiation
• Comparison of risk at work and in transit to and from work in relation to ICRP publication 45.

もっと見る 閉じる

スポンサーリンク