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Titolo:
DEVELOPMENT OF CHICKEN EMBRYOS EXPOSED TO AN INTERMITTENT HORIZONTAL SINUSOIDAL 50 HZ MAGNETIC-FIELD
Autore:
VEICSTEINAS A; BELLERI M; CINQUETTI A; PAROLINI S; BARBATO G; TOSATTI MPM;
Indirizzi:
UNIV BRESCIA,DIPARTIMENTO SCI BIOMED & BIOTECNOL,PHYSIOL SECT,VIA VALSABBINA 19 I-25100 BRESCIA ITALY
Titolo Testata:
Bioelectromagnetics
fascicolo: 5, volume: 17, anno: 1996,
pagine: 411 - 424
SICI:
0197-8462(1996)17:5<411:DOCEET>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
FREQUENCY ELECTROMAGNETIC-FIELDS; PRENATAL EXPOSURE; AVIAN EMBRYOS; EMBRYOGENESIS; WEAK; EGGS; FIBRONECTIN; MIGRATION; MEMBRANES; MICE;
Keywords:
INTERMITTENT EXPOSURE; GROWTH CURVE; MALFORMATION; BASEMENT MEMBRANE; EXTRACELLULAR MATRIX;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
49
Recensione:
Indirizzi per estratti:
Citazione:
A. Veicsteinas et al., "DEVELOPMENT OF CHICKEN EMBRYOS EXPOSED TO AN INTERMITTENT HORIZONTAL SINUSOIDAL 50 HZ MAGNETIC-FIELD", Bioelectromagnetics, 17(5), 1996, pp. 411-424

Abstract

The effects of intermittent exposure (2 h on/22 h off) to a 200 mu T horizontal, sinusoidally oscillating (50 Hz) magnetic field were studied in 210 fertilized chicken eggs. Two hundred ten control eggs (sham-exposed) were incubated in the same chamber as the experimental eggs. Chick embryos were examined for developmental anomalies and maturity stage after 48 h of incubation. Immunohistochemical analysis of extracellular membrane components (laminin, fibronectin, and type IV collagen) were conducted on day 7 and histological examinations for malformations of brain, liver, and heart, on days 7, 12, and 18 of incubation. Furthermore, egg fertility and egg weights were evaluated on days 2, 7,12, and 18. The investigation also measured the body weight of chickens for 90 days from hatching and included histological analysis of body organs. Each variable was investigated blind. Statistical comparisonbetween exposed and sham-exposed values did not show significant differences in any of the variables investigated. Thus, it appears that the exposure of embryos to an intermittent 200 mu T magnetic field at 50Hz does not cause developmental anomalies, changes in maturity stage,alterations in distribution of extracellular membrane components, or malformations in the brain, liver, or heart. Moreover, there were no differences in body weight, morphology, or histology of central nervoussystem, liver, heart, or testis in 90-day-old chickens hatched from exposed in comparison to sham-exposed eggs. (C) 1996 Wiley-Liss, Inc.

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Documento generato il 30/10/20 alle ore 09:43:34