Dynamics of calcium in the hippocampal neuronal culture model of epilepsy / 中国应用生理学杂志
Chinese Journal of Applied Physiology
;
(6): 200-203, 2007.
Article
in Chinese
| WPRIM
| ID: wpr-253446
ABSTRACT
<p><b>AIM</b>To observe the intracellular calcium ion spatio-temporal and dynamic changes in the hippocampal neuronal culture model of epilepsy induced by low magnesium ion medium, and to explore the relationship between calcium ion and epilepsy.</p><p><b>METHODS</b>Applying both laser scanning confocal microscope and patch clamp to timely observe the changes of [Ca2+]i and electrophysiological in the hippocampal neuronal culture model of epilepsy, and the influence of NMDA receptor-gated channels retarder and non-NMDA receptor-gated channels retarder.</p><p><b>RESULTS</b>After the hippocampal nerve cell broken into epileptiform discharges, [(Ca2+]i rapidly ascended to (620 +/- 70) nmol/L, NMIDA acceptor retarder (MK-801, 10 micromol/L) and non-NMDA acceptor retarder (NBQX, 10 micromol/L) reduced [Ca2+]i ascendance. Recovery of the elevated [Ca2+]i was obviously delay, after 90 min and 150 min epileptiform discharges, it took (114.8 +/- 5.2) min and (135.0 +/- 22.7) min (P < 0.05) respectively.</p><p><b>CONCLUSION</b>In vitro status epilepticus causes sustained elevation of intracellular calcium levels in hippocampal neurons</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Status Epilepticus
/
Cells, Cultured
/
Calcium
/
Rats, Sprague-Dawley
/
Cell Biology
/
Hippocampus
/
Animals, Newborn
/
Metabolism
/
Neurons
Type of study:
Prognostic study
Limits:
Animals
Language:
Chinese
Journal:
Chinese Journal of Applied Physiology
Year:
2007
Type:
Article
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