[The comparative characteristics of the bone marrow cellular composition in rats after the prolonged continuous or interrupted action of a low geomagnetic field].
Bone marrow cell composition in male Wistar rats exposed to long-term continuous (Run 1) or interrupted (Run 2) hypo-geomagnetic field (HGMF) with an attenuation coefficient of 172.5 generating in a permalloic chamber has been studied. When comparing the rat myelograms of the two test runs, a significant increase of lymphoid cell content, less pronounced during an interrupted exposure to HGMF by 10.1 and 6.5%, respectively, was noted. Analysis of myeloid cell response indicated that on a continuous exposure to HGMF the percentage of neutrophilic promyelocytes and myelocytes is somewhat declined. The levels of mature relating to stab and nuclear-segmental neutrophils in bone marrow during both modes of HGMF exposures practically remained unchanged. A certain decrease in cell fractions of erythroblastic shoot (chiefly at the cost of polychromatophilic normocytes), to a lesser extent manifested during an interrupted exposure to HGMF (by 5.8 and 2.4%, respectively) was noted. Long-term exposure of the animals to a weak terrestrial magnetic field causes a particular eosinophilia of bone marrow due to an increased fraction of mature eosinophils approximately similar on both HGMF profiles (by 2.1 and 2.0% respectively). On an interrupted HGMF exposure there was a significant myelogram elevation of the mast cell counts by 1.4%.
Azarenko
V V
VV
Smirnov
R V
RV
D000818:Animals; D001854:Bone Marrow Cells; D002452:Cell Count; D008280:Magnetics; D008297:Male; D051381:Rats; D017208:Rats, Wistar; D013997:Time Factors
Sravnitel'naia kharakteristika kletochnogo sostava kostnogo mozga krys posle dlitel'nogo postoiannogo ili preryvistogo deĭstviia gipogeomagnitnogo polia.