Azadniv M, Miller M W, Brayman A A, Cox C
Department of Biophysics, School of Medicine and Dentistry, University of Rochester, New York 14642.
Radiat Res. 1990 Oct;124(1):62-5.
An investigation was undertaken to define a 60-Hz electric field exposure system which would affect a eukaryotic cell system while mitigating a potential thermal rise. The biological effectiveness of pulsed 60-Hz electric fields on a cell system of defined sensitivity to continuous-wave 60-Hz electric fields was sought. Roots of garden pea (Pisum sativum L.) were exposed to pulsed trains of 60-Hz, 430 V/m electric fields. The "on" time was constant at 1 s and the "off" time varied. The repetitive on:off regimens used were 1:20, 1:50, 1:100, 1:130, 1:200, and 1:300. With continuous or 1:20 pulsed fields the growth response was equivalent (representing a 60% depression in root growth rate). The severity of the growth effect diminished as the off time increased; for the 1:100 regimen, the relative growth rate was depressed by about 30%; for the 1:300 regimen, the relative growth rate was equal to that of the controls.
开展了一项研究，以确定一种60赫兹电场暴露系统，该系统在减轻潜在温度升高的同时会影响真核细胞系统。研究了脉冲60赫兹电场对特定敏感性的连续波60赫兹电场细胞系统的生物学效应。将豌豆（Pisum sativum L.）的根暴露于60赫兹、430伏/米的脉冲电场中。“开启”时间恒定为1秒，“关闭”时间可变。使用的重复开启：关闭方案为1:20、1:50、1:100、1:130、1:200和1:300。在连续或1:20脉冲电场下，生长反应相同（根系生长速率降低60%）。随着关闭时间的增加，生长效应的严重程度降低；对于1:100方案，相对生长速率降低约30%；对于1:300方案，相对生长速率与对照组相同。
