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Effects of static electromagnetic fields on chick embryo pineal gland development
M Jové1, M Torrente, R Gilabert
1Unitat d'Anatomia Humana i Embriologia, Departament de Ciències Mèdiques Básiques, Facultat de Medicina i Ciències de la Salut, Universitat Rovira i Virgili, Reus, Spain.
Cells, Tissues, Organs
|October 12, 1999
Summary
Static electromagnetic fields impact chick embryo development, particularly the pineal gland. Exposure can alter developmental stages and morphometric parameters, with effects varying by field intensity and exposure duration.
Area of Science:
- Developmental biology
- Electromagnetism
- Embryology
Background:
- The pineal gland's development is crucial for various physiological processes.
- Understanding the impact of environmental factors like electromagnetic fields on embryonic development is essential.
Purpose of the Study:
- To investigate the effects of static electromagnetic fields on chick embryo pineal gland development.
- To analyze morphometric changes in the pineal gland under different field intensities and exposure times.
Main Methods:
- 144 White Leghorn eggs were incubated and exposed to static electromagnetic fields (18 and 36 mT) or sham conditions.
- Embryo developmental stages were assessed using the Hamburger and Hamilton method.
- Morphometric parameters of the pineal gland were measured from serial sections.
Main Results:
- At 5 days, 18 mT exposure advanced development in 25% of embryos compared to controls.
- On days 10 and 15, exposed embryos generally showed more advanced development than controls.
- By day 15, morphometric values were lower in exposed embryos (especially 36 mT) than controls (p > 0.01).
Conclusions:
- Static electromagnetic fields exert unequal effects on chick embryo development and pineal gland growth.
- The impact of electromagnetic fields is dependent on intensity, exposure duration, and the developing organ.
- Findings suggest further ultrastructural and physiological studies are warranted.