Effects of exposure to extremely low frequency electro-magnetic fields on circadian rhythms and distribution of some leukocyte differentiation antigens in dairy cows / 生物医学与环境科学(英文)
Biomedical and Environmental Sciences
;
(12): 164-170, 2007.
Article
in English
| WPRIM
| ID: wpr-249871
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the effects of extremely low frequency magnetic and electric fields (ELFEMFs) emitted from 380 kV transmission lines on some leukocyte differentiation antigens in dairy cows.</p><p><b>METHODS</b>The study was carried out in 5 cows exposed to 1.98-3.28 microT of ELFEMFs and in 5 control cows exposed to 0.2-0.7 microT of ELFEMFs. Following haematological and immunologic parameters were measured in both groups WBC, CD45R, CD6, CD4, CD8, CD21, and CD11B leukocyte antigen expression.</p><p><b>RESULTS</b>Some of the haematological and immunologic parameters under investigation were similar in both groups. However, CD8 (T lymphocyte surface antigen) was higher in the exposed group (1.35 +/- 0.120 vs. 0.50 +/- 0.14 x 10(3)/mL). Furthermore, the CD4/CD8 ratio (0.84 +/- 0.05 and 2.19 +/- 0.16 for exposed and not exposed cows respectively) and circadian rhythm were different between the two groups.</p><p><b>CONCLUSION</b>Exposure to ELFEMFs is responsible of the abnormal temporal variations and distribution of some haematological and immunological parameters in dairy cows.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Radiation Effects
/
Blood
/
Antigens, CD
/
Circadian Rhythm
/
Electromagnetic Fields
/
Environmental Exposure
/
Allergy and Immunology
/
Leukocytes
Limits:
Animals
Language:
English
Journal:
Biomedical and Environmental Sciences
Year:
2007
Type:
Article
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