Effects of Exposure to Extremely Low Frequency Electro-magnetic Fields on Circadian Rhythms and Distribution of Some Leukocyte Differentiation Antigens in Dairy Cows

CALOGERO STELLETTA; PAOLA DE NARDO; FRANCESCO SANTIN; GIUSEPPE BASSO; BARBARA MICHIELOTTO; GIUSEPPE PICCIONE; MASSIMO MORGANTE

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Volume 20 Issue 2

Apr. 2007

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Article Navigation > Biomedical and Environmental Sciences > 2007 > 20(2): 164-170

CALOGERO STELLETTA, PAOLA DE NARDO, FRANCESCO SANTIN, GIUSEPPE BASSO, BARBARA MICHIELOTTO, GIUSEPPE PICCIONE, MASSIMO MORGANTE. Effects of Exposure to Extremely Low Frequency Electro-magnetic Fields on Circadian Rhythms and Distribution of Some Leukocyte Differentiation Antigens in Dairy Cows[J]. Biomedical and Environmental Sciences, 2007, 20(2): 164-170.

Citation:

CALOGERO STELLETTA, PAOLA DE NARDO, FRANCESCO SANTIN, GIUSEPPE BASSO, BARBARA MICHIELOTTO, GIUSEPPE PICCIONE, MASSIMO MORGANTE. Effects of Exposure to Extremely Low Frequency Electro-magnetic Fields on Circadian Rhythms and Distribution of Some Leukocyte Differentiation Antigens in Dairy Cows[J]. Biomedical and Environmental Sciences, 2007, 20(2): 164-170.

Effects of Exposure to Extremely Low Frequency Electro-magnetic Fields on Circadian Rhythms and Distribution of Some Leukocyte Differentiation Antigens in Dairy Cows

Università degli Studi di Padova, Dipartimento di Scienze Cliniche Veterinarie, Viale dell'Università 16, 35020 Legnaro (PD), Italy
Istituto Superiore di Sanità, Dipartimento Ambiente e Connessa Prevenzione Primaria, Viale Regina Elena 299, 00161 Roma, Italy
Università degli Studi di Padova, Oncoematologia Pediatrica, Via Giustiniani 3, 35128 Padova, Italy
Università degli Studi di Messina, Dipartimento di Morfologia, Biochimica, Fisiologia e Produzioni Animali, Laboratorio di Cronofisiologia Veterinaria, Sezione di Fisiologia Veterinaria, Polo Universitario dell'Annunziata, 98168, Messina, Italy

Abstract

Objective 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. Methods The study was carried out in 5 cows exposed to 1.98-3.28 μT of ELFEMFs and in 5 control cows exposed to 0.2-0.7 μT of ELFEMFs. Following haematological and immunologic parameters were measured in both groups: WBC, CD45R, CD6, CI4, CD8, CD21, and CD1 1B leukocyte antigen expression. Results 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 × 103/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. Conclusion Exposure to ELFEMFs is responsible of the abnormal temporal variations and distribution of some haematological and immunological parameters in dairy cows.
- Electro-magnetic fields,
- Low frequency,
- Leukocyte,
- Circadian rhythm,
- Dairy cow
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Effects of Exposure to Extremely Low Frequency Electro-magnetic Fields on Circadian Rhythms and Distribution of Some Leukocyte Differentiation Antigens in Dairy Cows

Università degli Studi di Padova, Dipartimento di Scienze Cliniche Veterinarie, Viale dell'Università 16, 35020 Legnaro (PD), Italy

Istituto Superiore di Sanità, Dipartimento Ambiente e Connessa Prevenzione Primaria, Viale Regina Elena 299, 00161 Roma, Italy

Università degli Studi di Padova, Oncoematologia Pediatrica, Via Giustiniani 3, 35128 Padova, Italy

Università degli Studi di Messina, Dipartimento di Morfologia, Biochimica, Fisiologia e Produzioni Animali, Laboratorio di Cronofisiologia Veterinaria, Sezione di Fisiologia Veterinaria, Polo Universitario dell'Annunziata, 98168, Messina, Italy

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Abstract: Objective 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. Methods The study was carried out in 5 cows exposed to 1.98-3.28 μT of ELFEMFs and in 5 control cows exposed to 0.2-0.7 μT of ELFEMFs. Following haematological and immunologic parameters were measured in both groups: WBC, CD45R, CD6, CI4, CD8, CD21, and CD1 1B leukocyte antigen expression. Results 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 × 103/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. Conclusion Exposure to ELFEMFs is responsible of the abnormal temporal variations and distribution of some haematological and immunological parameters in dairy cows.

Citation:

CALOGERO STELLETTA, PAOLA DE NARDO, FRANCESCO SANTIN, GIUSEPPE BASSO, BARBARA MICHIELOTTO, GIUSEPPE PICCIONE, MASSIMO MORGANTE. Effects of Exposure to Extremely Low Frequency Electro-magnetic Fields on Circadian Rhythms and Distribution of Some Leukocyte Differentiation Antigens in Dairy Cows[J]. Biomedical and Environmental Sciences, 2007, 20(2): 164-170.