[Effect of high frequency electromagnetic fields on the processes of transamination in the liver and small intestine tissues of rats].

The influence of electromagnetic waves of metrical and centimetrical range on the transaminoferases activity was studied in the liver and small intestine of 69 rats. The experiment shows that the activity of aspartate and alanine aminotransferases is dependent on the power and duration of the action. It is established that the action of both the short-wave 160 mA diathermy and 30 MW/cm2 microwaves for 20 min is accompanied by inhibition of the liver and small intestine aminotransferases activity.

[Selective effect of decimeter waves on central brain structures].

Sensitivity of central cerebral structures to the action of the electromagnetic fields of decimetre waves (DMW) was studied with the aid of unit activity of comissural neurons. The greatest reactivity to DMW was found in neurons of hypothalamus and hippocampus. Neurons of the midbrain RF and of the specific thalamic nuclei displayed mainly an inhibitory response.

Selective action of decimeter waves on central brain structures.

To study the sensitivity of some central brain structures to the action of an electromagnetic field of decimeter waves (EMF of DW) a dynamic investigation of single unit activity was undertaken. Neurons of the hippocampus and hypothalamus with an excitatory type of response were found to have the greatest reactivity to EMF of DW. Neurons of the mesencephalic reticular formation and of the specific nuclei of the thalamus had mostly an inhibitory type of response.