Changes of apoptosis, mitochondrion membrane potential and Ca2+ of hypothalamic neurons induced by high power microwave / 中华劳动卫生职业病杂志
Chinese Journal of Industrial Hygiene and Occupational Diseases
; (12): 739-741, 2006.
Article
de Zh
| WPRIM
| ID: wpr-297580
Bibliothèque responsable:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To explore the injury effect and mechanism of hypothalamic neurons after high power microwave (HPM) exposure.</p><p><b>METHODS</b>Primarily cultured hypothalamic neurons were exposed to 10 and 30 mW/cm(2) HPM, and the inverted phase contrast microscope (IPCM) and flow cytometry (FCM) were employed to detect the injury of cells and change of mitochondrion membrane potential (MMP) and Ca(2+) in the cytoplasm of neurons.</p><p><b>RESULTS</b>The ratio of apoptosis was significantly higher than that of the sham exposure (P < 0.05) induced by 10 and 30 mW/cm(2) HPM and necrosis increased significantly (P < 0.05) in the group of 30 mW/cm(2) at 6 h after exposure. The content of Ca(2+) in the cytoplasm of neuron cells increased (P < 0.01) while MMP decreased significantly (P < 0.01) after radiation of 30 mW/cm(2) HPM at 6 h after exposure.</p><p><b>CONCLUSION</b>Apoptosis is one of the major death ways of hypothalamic neurons. The overloading of Ca(2+) and the decline of MMP are involved in the process.</p>
Texte intégral:
1
Indice:
WPRIM
Sujet Principal:
Effets des rayonnements
/
Cellules cultivées
/
Calcium
/
Rat Wistar
/
Apoptose
/
Biologie cellulaire
/
Potentiel de membrane mitochondriale
/
Hypothalamus
/
Potentiels de membrane
/
Métabolisme
Limites du sujet:
Animals
langue:
Zh
Texte intégral:
Chinese Journal of Industrial Hygiene and Occupational Diseases
Année:
2006
Type:
Article