Radiation and Environmental Biophysics

, Volume 32, Issue 1, pp 65–72 | Cite as

Influence of a stationary magnetic field on acetylcholinesterase in murine bone marrow cells

  • S. Stegemann
  • K. I. Altman
  • H. Mühlensiepen
  • L. E. Feinendegent
Article

Abstract

A thirty-minute exposure of mice to a homogeneous stationary magnetic field (SMF) of 1.4 Tesla at either 27° C or 37° C body temperature causes an inhibition of about 20 percent of acetylcholinesterase (AChE, E.C. 3.11.7) in murine bone marrow cells (BMC) after 3.5 and 2 h, respectively, at the two aforementioned body temperatures. The extent of enzyme inhibition is independent of ambient temperature, but dependent on the time after exposure. This initial inhibition of AChE activity is followed by a limited recovery which is dependent upon the temperature during exposure to the SMF and remains incomplete even 15 h afterwards. We describe here certain enzymologic properties of AChE in BMC as well as inhibition studies with diisoropylfluorophosphate (DFP) to differentiate between AChE and nonspecific cholinesterases.

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Copyright information

© Springer-Verlag 1993

Authors and Affiliations

  • S. Stegemann
    • 1
  • K. I. Altman
    • 2
  • H. Mühlensiepen
    • 1
  • L. E. Feinendegent
    • 1
  1. 1.Forschungszentrum JülichInstitut für MedizinJülichGermany
  2. 2.School of Medicine and DentistryUniversity of RochesterRochesterUSA

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